A gamma-gamma coincidence spectrometer for nuclear attribution and safeguard applications

Size: px
Start display at page:

Download "A gamma-gamma coincidence spectrometer for nuclear attribution and safeguard applications"

Transcription

1 IAEA-CN-184/174 A gamma-gamma coincidence spectrometer for nuclear attribution and safeguard applications Weihua Zhang, Jing Yi, Pawel Mekarski and Kurt Ungar Radiation Protection Bureau of Health Canada, 775 Brookfield Road, Ottawa, Ontario, K1A 1C1 Canada Abstract This paper reports on initial efforts for uranium isotopic analysis using gamma-rays and X-ray fluorescence coincidence. In this study, a gamma gamma coincidence spectrometry was developed. The spectrometry consists of two NaI(Tl) scintillators and XIA LLC Digital Gamma Finder (DGF)/Pixie-4 software and card package. The developed spectrometry was optimized according to the considerations of output count rate and gamma peak energy resolution. It has been demonstrated that the spectrometry provides an effective method of assessing the content of uranium isotopes for nuclear materials. The main advantages of this approach over the conventional gamma spectrometry include that the 235 U enrichment can be graphically characterized by their unique coincidence fingerprint. The method could be further developed for fast uranium isotope verification with an established gamma-gamma coincidence spectral imaging library by various nuclear materials. 1. Introduction In this study, gamma-gamma coincidence spectrometric method has been developed and proposed for rapid isotope screening of nuclear and radiological materials. The focus of this study is to establish a methodology that enables rapid identification of uranium enrichments by three dimensional gamma-gamma coincidence graphical signatures of uranium isotopes, and quantification of uranium isotopes with minimal calibrations. There are several advantages of the method over the conventional gamma spectrometry for uranium isotopic analysis. First, it has a low background continuum near coincident signatures due to the requirement of having coincident photon energy deposited in two detectors. The uranium gamma-gamma coincidence event becomes the dominant signal in the determined spectrum. Second, gamma-gamma coincident counting eliminates many of the interferences that are presented in conventional gamma spectrometry, such as gamma-ray of 226 Ra. Finally, the study has demonstrated that three dimensional gamma-gamma coincidence spectrum measured by the method can be used as a graphic pattern or fingerprint to distinguish the uranium enrichment in nuclear materials. Thus it is possible to determine if a sample has enriched uranium by pattern recognition and image analysis. 1

2 2. System descriptions and calibrations The gamma gamma coincidence spectrometry consists of two cm NaI(Tl) scintillators with their endcaps facing each other and the endcap-to-endcap distance is continuously adjustable. A sample can be positioned in the middle of two detectors for counting. This orientation provides a large geometric efficiency when the two detector distance is small; and this configuration provides maximum cross-talks probability. These cross-talks, resulting from coincident backscattered of the kev gamma-ray of 235 U, can be used to quantify and qualify the 235 U enrichment in nuclear material. The NaI(Tl) was selected because of its satisfied energy resolution at a reasonable cost. Each NaI(Tl) detector is a combination of scintillator/photomultipier (PMT) and preamplifier manufactured by Bicron (Saint Gobain), Newbury. The PMT high-voltage power supply is a programmable DC power supply from National Instruments, Austin, model number NI PXI The preamplifier is powered by an ORTEC portable power supply, with model number 4002P. The data-acquisition system for the spectrometer utilizes all-digital electronics, based on the X-Ray Instrumentation Associates (XIA LLC) Digital Gamma Finder (DGF)/Pixie-4 software and card package [1]. The Pixie-4 card is a four channel digital pulse-processing module deployed on a chassis with CompactPCI/PXI backplane from National Instrument. The waveform of an input signal, taken directly from NaI(Tl) preamplifier output, is continuously sampled and digitized by a 14-bit analog-to-digital converter (ADC) at a rate of samples/s. The signal pulse height is determined by a programmable, digital trapezoidal energy filter implemented in a field-programmable gate array (FPGA). Preamplifier pulse heights are determined to 16-bit resolution. Event timing and pulse-pileup inspection is also carried out in the FPGA by a fast programmable trapezoidal trigger filter. Events are time-stamped at the full ADC rate of 75 MHz. The Pixie-4 card resides in a 4-unit PXI crate. A host desktop PC controls the pulse processing module and performs data readout. All operating parameters, including the filter values, are user adjustable in the software on the host PC. The coincidence time window is also set in the software with a step of ns and a lower limit of ns, thus allowing accurate reconstruction of coincident interactions in two NaI(Tl) detectors. The parameters of trapezoidal trigger and energy filter, such as trigger threshold, filter rise and flat top time, are optimized by maximizing the output and input count rate ratio and minimizing the kev peak resolution of 137 Cs. Whenever a valid event is detected, a digital signal processor (DSP) reads out the energy filter values, reconstructs the pulse height, and bins the energy. In the case of coincidence counting, the DSP obtains the coincidence pattern of active channels in a given event. The simplicity of the present coincidence system is especially apparent in contrast to the systems associated with many NIM-based analog processing modules [2]. Three certified standard point sources ( 241 Am, 137 Cs and 22 Na) from Eckert & Ziegler Analytics were used for the energy and energy resolution calibrations of each NaI(Tl) scintillator. The calibration data are listed in Table 1. By tuning each PMT s high-voltage supply, and gain, and offset of each Pixie-4 card input channel, the same full-energy gamma ray appears in almost the same center channel for both NaI(Tl) detectors. The 2

3 energy resolution of the two NaI(Tl) detectors is around 7% at kev, which is very close to each other. 3. Samples The samples used for the study were National Bureau of Standards (NBS) SRMs U950b (NU), U0002 (DU), U100 (LEU), U800 (HEU) and a weapons-grade metallic uranium sample. The reference materials consist of normal uranium in the form of oxide, U 3 O 8, with uranium oxide mass fraction more than 99.9%. The uranium molar mass used in the NBS U950b calculation was g/mol, suggesting an isotopic abundance of 235 U in the range %, which is close to natural isotopic composition. The certified 235 U enrichment of U0002, U100 and U800 are 0.02%, 10% and 80% respectively. The mass of each sample was about 1 g, and introduced onto the bottoms of cylindrical glass vials, forming disks of approximate dimensions 1.55 cm dia cm height for counting. The metallic uranium sample was obtained from a nuclear forensic laboratory HEU characterization exercise. It was approximately in cylindrical pellet form with a 0.25 cm dia cm height. Its uranium concentration was determined by more than 99.9% by weight. The sample was weighted about 0.16 g, and introduced onto the bottoms of a small plastic vial for counting. 4. Results and discussion The composition of the NBS standards was mainly 235 U and 238 U. Most of the visible gamma-rays are from 235 U, 234 Th and 234m Pa (progenies of 238 U) and X-ray fluorescence. For each NBS standard, list-mode data were collected by the gamma-gamma coincidence counting system over 600 seconds at a ns coincidence window. The data acquired in list-mode includes coincidence events consisting of records of energy in DSP units and timestamp from NaI(Tl) detector A and B. The list-mode data was stored in a text file for offline analysis. During offline analysis, the DSP units of coincidence events from both NaI(Tl) detectors A and B were divided by detector s calibration factor correspondingly, then a histogram was created of the three-dimensional (3D) gammagamma coincident energy spectrum. The U950b standard contains 99.28% 238 U and 0.72% 235 U. Most of the radiation originates from 238 U, 234 Th, 234 Pa, 234m Pa and U K-shell X-ray fluorescence. The gammagamma coincidence 3D spectrum collected, shown in Figure 1, displays the most intensive ROI-e resulting from U-K α and U-K α coincidences in both detectors. The X- rays (94.7 and 98.4 kev) are self-excited fluorescence by inner radiations in the uranium material in the presence of other uranium atoms near the location of the decay [3]. The yields of the self-excited X-ray fluorescence are more than 30% allowing a more intensive coincidence peak to be observed. The two ROI-b regions lined up diagonally are mainly results of detectors cross-talks of kev gamma-ray of 235 U. Other gamma-rays of 235 U, may also have contributions for this coincidence counts because of low resolution of NaI(Tl) detector. The vertical and horizontal tailings (ROI-f) are due to random coincident events between U-K α deposited in one detector and X-ray fluorescence continuous (bremsstrahlung radiation) deposited in the other. The two 3

4 diagonal tailings are caused by bremsstrahlung radiation coincidence of two detectors. The ROI-d arise from the coincidence of kev gamma-ray deposited in one detector and kev gamma-ray of 234m Pa measured in the other. Figure 1: Top view of the determined 3D histogram of U950b NU standard obtained by one hour counting. At elevated 235 U concentrations, the determined 3D coincidence spectrum apparently has different features. As shown in Figure 2 (a), the coincidence spectrum obtained by U200 (LEU) shows relative weak coincidence tailings resulting from bremsstrahlung radiation and a feeble coincidence peak between kev and kev gamma-ray of 234m Pa (ROI-d). Other coincidence counting with U100, U800 and U930d indicate that the higher 235 U enrichment, the shorter the bremsstrahlung radiation coincidence tailing and the less coincidence events in ROI-d. Other coincidence counting with U100, U800 and U930d indicate that the higher 235 U enrichment, the shorter the bremsstrahlung radiation coincidence tailing and the less coincidence events in ROI-d. As an example, the coincidence spectrum obtained by U930d is given in Figure 2 (b). These observations may be explained by the fact that the strong kev gamma-ray from 235 U excites Th K-shell X-rays from the thorium (daughter of uranium) much more efficiently at 235 U high enriched samples. The Th K-shell excited X-rays may have much less chance to 4

5 produce coincident events with bremsstrahlung radiation that mainly generated by the X- ray excitation of 238 U and its progenies. As the 235 U enrichment increased to 80% (U800), coincidence events in the ROI-d resulting from 238 U become very week. Figure 2: Top view of the determined 3D gamma-gamma coincidence spectrum of U200 LEU with one hour counting (a); and U930d HEU with 600 seconds counting (b). 5. Conclusions and future work The results obtained so far have shown that the gamma-gamma coincidence spectrometry is a relatively simple technique that would allow for the counting and monitoring the content of uranium isotopes of nuclear materials. The experiment showed that the spectra of natural and depleted uranium materials is characterized by coincidence tailings between U K-shell fluorescent X-rays and 234 Pa beta-decay produced bremsstrahlung radiation. The coincidence spectra of 235 U enriched and weapons-grade materials is dominated by detectors cross-talks of kev gamma-ray of 235 U and the coincidence between K-shell X-ray and K-shell X-ray sum peaks. It was also shown that the relative intensity of L-shell and K-shell X-ray coincidence peak to K-shell and K-shell X-ray coincidence peak allows an estimation of properties of uranium matrix composite. Future development of the method includes developing a protocol that enables an automated recognition of uranium isotope enrichment and specific substances with an established gamma-gamma coincidence spectral imaging library by various nuclear materials. 5

6 6. References [1] Hennig W, Chua YX, Tana H, Fallu-Labruyerea A, Warburtona WK and Grzywaczb R, The DGF Pixie-4 spectrometer: compact digital readout electronics for HPGe clover detectors, 2007, Nucl Instrum Methods Phys Res Sect B Inter Mater Atoms 263(1): [2] Weihua Zhang, Jing Yi, Pawel Mekarski, Ian Hoffman, Kurt Ungar and Ari-Pekka Leppanen, A system for low-level the cosmogenic 22 Na radionuclide measurement by gamma gamma coincidence method using BGO detectors, 2010, J. Radioanal. Nucl. Chem., DOI /s [3] Dragnev, T., Rukhlo, V., Rundquist, D., Szabo, E., Combined Gamma and passive X- ray fluorescent measurement of 235 U enrichment and U-total concentration, 1991, Journal of Radioanalytical and Nuclear Chemistry, 152(1),

Single Channel Beta-Gamma Coincidence Detection of Radioactive Xenon Using Digital Pulse Shape Analysis of Phoswich Detector Signals

Single Channel Beta-Gamma Coincidence Detection of Radioactive Xenon Using Digital Pulse Shape Analysis of Phoswich Detector Signals Single Channel Beta-Gamma Coincidence Detection of Radioactive Xenon Using Digital Pulse Shape Analysis of Phoswich Detector Signals Wolfgang Hennig, Hui Tan, William K Warburton, and Justin I McIntyre

More information

28th Seismic Research Review: Ground-Based Nuclear Explosion Monitoring Technologies DESIGN OF A PHOSWICH WELL DETECTOR FOR RADIOXENON MONITORING

28th Seismic Research Review: Ground-Based Nuclear Explosion Monitoring Technologies DESIGN OF A PHOSWICH WELL DETECTOR FOR RADIOXENON MONITORING DESIGN OF A PHOSWICH WELL DETECTOR FOR RADIOXENON MONITORING W. Hennig 1, H. Tan 1, A. Fallu-Labruyere 1, W. K. Warburton 1, J. I. McIntyre 2, A. Gleyzer 3 XIA, LLC 1, Pacific Northwest National Laboratory

More information

DIGITAL PULSE SHAPE ANALYSIS WITH PHOSWICH DETECTORS TO SIMPLIFY COINCIDENCE MEASUREMENTS OF RADIOACTIVE XENON

DIGITAL PULSE SHAPE ANALYSIS WITH PHOSWICH DETECTORS TO SIMPLIFY COINCIDENCE MEASUREMENTS OF RADIOACTIVE XENON DIGITAL PULSE SHAPE ANALYSIS WITH PHOSWICH DETECTORS TO SIMPLIFY COINCIDENCE MEASUREMENTS OF RADIOACTIVE XENON W. Hennig 1, H. Tan 1, W.K. Warburton 1, and J.I. McIntyre 2 XIA LLC 1, Pacific Northwest

More information

ENERGY PEAK STABILITY WITH COUNT RATE FOR DIGITAL AND ANALOG SPECTROMETERS

ENERGY PEAK STABILITY WITH COUNT RATE FOR DIGITAL AND ANALOG SPECTROMETERS NUCLEAR PHYSICS ENERGY PEAK STABILITY WITH COUNT RATE FOR DIGITAL AND ANALOG SPECTROMETERS A. DUMITRESCU 1, GH. CǍTA-DANIL 1, 2 1 Physics Department, University Politehnica of Bucharest, Splaiul Independenţei

More information

29th Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies

29th Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies CHARACTERIZATION OF PHOSWICH WELL DETECTORS FOR RADIOXENON MONITORING Wolfgang Hennig 1, Hui Tan 1, William K. Warburton 1, Anthony Fallu-Labruyere 1, Konstantin Sabourov 1, Justin I. McIntyre 2, Matthew

More information

arxiv:nucl-ex/ v2 21 Jul 2005

arxiv:nucl-ex/ v2 21 Jul 2005 Gamma-spectrometric uranium age-dating using intrinsic efficiency calibration arxiv:nucl-ex/0506029v2 21 Jul 2005 Cong Tam Nguyen and József Zsigrai Institute of Isotopes of the Hungarian Academy of Sciences

More information

AUTOMATIC AND INTERACTIVE ANALYSIS SOFTWARE FOR BETA- GAMMA COINCIDENCE SYSTEMS USED IN CTBT MONITORING

AUTOMATIC AND INTERACTIVE ANALYSIS SOFTWARE FOR BETA- GAMMA COINCIDENCE SYSTEMS USED IN CTBT MONITORING ABSTRACT AUTOMATIC AND INTERACTIVE ANALYSIS SOFTWARE FOR BETA- GAMMA COINCIDENCE SYSTEMS USED IN CTBT MONITORING J. Rynes, K.M.F. Biegalski, P. Donohoe, and S. Biegalski Veridian Pacific-Sierra Research

More information

Pulse height non-linearity in LaBr 3 :Ce crystal for gamma ray spectrometry and imaging

Pulse height non-linearity in LaBr 3 :Ce crystal for gamma ray spectrometry and imaging Pulse height non-linearity in LaBr 3 :Ce crystal for gamma ray spectrometry and imaging P A O L O B E N N A T I I N F N R O M A T R E E D E M O M P H D S C H O O L, R O M A T R E U N I V E R S I T Y P

More information

IdentiFINDER Digital Hand Held Spectrometer & Dose Rate Meter for Portable Applications

IdentiFINDER Digital Hand Held Spectrometer & Dose Rate Meter for Portable Applications fire IdentiFINDER Digital Hand Held Spectrometer & The world s smallest spectrometer and dose rate meter designed for portable applications. safety security identifinder - CH (yellow) CZT and neutron detector

More information

SCINTILLATION DETECTORS & GAMMA SPECTROSCOPY: AN INTRODUCTION

SCINTILLATION DETECTORS & GAMMA SPECTROSCOPY: AN INTRODUCTION SCINTILLATION DETECTORS & GAMMA SPECTROSCOPY: AN INTRODUCTION OBJECTIVE The primary objective of this experiment is to use an NaI(Tl) detector, photomultiplier tube and multichannel analyzer software system

More information

1 of :32

1 of :32 Home Page Products Price List Links & PDFs DISCONTINUED: SEE GAMMA-RAD Gamma Ray & X-Ray Spectroscopy System Hand-Held, High Efficiency NaI(Tl) Detector The GAMMA-8000 is a powerful, portable instrument

More information

Development of a Radioxenon Detection System Using CdZnTe, Array of SiPMs, and a Plastic Scintillator

Development of a Radioxenon Detection System Using CdZnTe, Array of SiPMs, and a Plastic Scintillator Development of a Radioxenon Detection System Using CdZnTe, Array of SiPMs, and a Plastic Scintillator Steven Czyz Farsoni, A., Ranjbar, L., Gadey, H. School of Nuclear Science and Engineering Oregon State

More information

General Overview of Radiation Detection and Equipment

General Overview of Radiation Detection and Equipment www.inl.gov INL/MIS-11-22727 General Overview of Radiation Detection and Equipment International Nuclear Safeguards Policy and Information Analysis Course Monterey Institute of International Studies June

More information

Scintillation Detector

Scintillation Detector Scintillation Detector Introduction The detection of ionizing radiation by the scintillation light produced in certain materials is one of the oldest techniques on record. In Geiger and Marsden s famous

More information

Detection and measurement of gamma-radiation by gammaspectroscopy

Detection and measurement of gamma-radiation by gammaspectroscopy Detection and measurement of gamma-radiation by gammaspectroscopy Gamma-radiation is electromagnetic radiation having speed equal to the light in vacuum. As reaching a matter it interact with the different

More information

Nuclear Lifetimes. = (Eq. 1) (Eq. 2)

Nuclear Lifetimes. = (Eq. 1) (Eq. 2) Nuclear Lifetimes Theory The measurement of the lifetimes of excited nuclear states constitutes an important experimental technique in nuclear physics. The lifetime of a nuclear state is related to its

More information

Spectroscopy of fission fragments using prompt-delayed coincidence technique

Spectroscopy of fission fragments using prompt-delayed coincidence technique PRAMANA c Indian Academy of Sciences Vol. 85, No. journal of September 5 physics pp. 95 Spectroscopy of fission fragments using prompt-delayed coincidence technique RPALIT and S BISWAS Department of Nuclear

More information

NUCL 3000/5030 Laboratory 2 Fall 2013

NUCL 3000/5030 Laboratory 2 Fall 2013 Lab #2: Passive Gamma Spec Measurements in Decoding Natural Radioactivity in SLC Area Objectives a. Learn basics of gamma spectroscopy b. Learn the equipment in Counting stations #4, #5 and #8 c. Apply

More information

Alpha-Gamma discrimination by Pulse Shape in LaBr 3 :Ce and LaCl 3 :Ce

Alpha-Gamma discrimination by Pulse Shape in LaBr 3 :Ce and LaCl 3 :Ce Alpha-Gamma discrimination by Pulse Shape in LaBr 3 :Ce and LaCl 3 :Ce F.C.L. Crespi 1,2, F.Camera 1,2, N. Blasi 2, A.Bracco 1,2, S. Brambilla 2, B. Million 2, R. Nicolini 1,2, L.Pellegri 1, S. Riboldi

More information

SCI-O11. Design of a Compton Spectrometer Experiment for Studying Electron Response of a Scintillator

SCI-O11. Design of a Compton Spectrometer Experiment for Studying Electron Response of a Scintillator 88 The 1 st NPRU Academic Conference SCI-O11 Design of a Compton Spectrometer Experiment for Studying Electron Response of a Scintillator P. Limkitjaroenporn and W.Chewpraditkul Radiation Physics Laboratory,

More information

Quality Assurance. Purity control. Polycrystalline Ingots

Quality Assurance. Purity control. Polycrystalline Ingots Quality Assurance Purity control Polycrystalline Ingots 1 Gamma Spectrometry Nuclide Identification Detection of Impurity Traces 1.1 Nuclides Notation: Atomic Mass Atomic Number Element Neutron Atomic

More information

COUNT RATE EFFECTS ON PEAK SHAPE AND THROUGHPUT IN DIGITAL AND ANALOG GAMMA RAY SPECTROMETRY

COUNT RATE EFFECTS ON PEAK SHAPE AND THROUGHPUT IN DIGITAL AND ANALOG GAMMA RAY SPECTROMETRY Romanian Reports in Physics, Vol. 64, No. 4, P. 957 967, 2012 NUCLEAR PHYSICS COUNT RATE EFFECTS ON PEAK SHAPE AND THROUGHPUT IN DIGITAL AND ANALOG GAMMA RAY SPECTROMETRY A. DUMITRESCU 1, GH. CǍTA-DANIL

More information

WM2014 Conference, March 2 6, 2014, Phoenix, Arizona, USA

WM2014 Conference, March 2 6, 2014, Phoenix, Arizona, USA Experimental Comparison between High Purity Germanium and Scintillator Detectors for Determining Burnup, Cooling Time and Decay Heat of Used Nuclear Fuel - 14488 Peter Jansson *, Sophie Grape *, Stephen

More information

Alpha spectrometry systems. A users perspective. George Ham. 26 th May Date Month Year

Alpha spectrometry systems. A users perspective. George Ham. 26 th May Date Month Year Alpha spectrometry systems A users perspective George Ham Date Month Year 26 th May 2005 Centre for Radiation, Chemical and Environmental Hazards Radiation Protection Division formerly the National Radiological

More information

arxiv: v1 [physics.ins-det] 3 Feb 2011

arxiv: v1 [physics.ins-det] 3 Feb 2011 Nuclear Instruments and Methods in Physics Research A 00 (2018) 1 5 Alogo.pdf Nuclear Instruments and Methods in Physics Research A Scintillation decay time and pulse shape discrimination in oxygenated

More information

Gamma-Spectrum Generator

Gamma-Spectrum Generator 1st Advanced Training Course ITCM with NUCLEONICA, Karlsruhe, Germany, 22-24 April, 2009 1 Gamma-Spectrum Generator A.N. Berlizov ITU - Institute for Transuranium Elements Karlsruhe - Germany http://itu.jrc.ec.europa.eu/

More information

2010 Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies

2010 Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies DESIGN AND MODELING OF A COMPTON-SUPPRESSED PHOSWICH DETECTOR FOR RADIOXENON MONITORING Abi T. Farsoni and David M. Hamby Oregon State University Sponsored by the National Nuclear Security Administration

More information

FRAM V5.2. Plutonium and Uranium Isotopic Analysis Software

FRAM V5.2. Plutonium and Uranium Isotopic Analysis Software V5.2 Plutonium and Uranium Isotopic Analysis Software Advanced Isotopic Ratio Analysis Software for HPGe Gamma-Ray Spectra Analyzes Pu, and a wide variety of heterogeneous samples containing Pu, Am, U,

More information

1220 QUANTULUS The Ultra Low Level Liquid Scintillation Spectrometer

1220 QUANTULUS The Ultra Low Level Liquid Scintillation Spectrometer 1220 QUANTULUS The Ultra Low Level Liquid Scintillation Spectrometer PerkinElmer LAS (UK) Ltd, Chalfont Rd, Seer Green, Beaconsfield, Bucks HP9 2FX tel: 0800 896046 www.perkinelmer.com John Davies January

More information

Gamma Spectroscopy. References: Objectives:

Gamma Spectroscopy. References: Objectives: Gamma Spectroscopy References: G.F. Knoll, Radiation Detection and Measurement (John Wiley & Sons, New York, 2000) W. R. Leo, Techniques for Nuclear and Particle Physics Experiments: A How-to Approach,

More information

29th Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies AUTOMATED QA/QC CHECK

29th Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies AUTOMATED QA/QC CHECK AUTOMATED QA/QC CHECK FOR β- COINCIDENCE DETECTOR Matthew W. Cooper, James C. Hayes, Tom R. Heimbigner, Charles W. Hubbard, Justin I. McIntyre, Michael D. Ripplinger, and Brian T. Schrom Pacific Northwest

More information

A dual scintillator - dual silicon photodiode detector module for intraoperative gamma\beta probe and portable anti-compton spectrometer

A dual scintillator - dual silicon photodiode detector module for intraoperative gamma\beta probe and portable anti-compton spectrometer University of Wollongong Research Online Faculty of Engineering - Papers (Archive) Faculty of Engineering and Information Sciences 2008 A dual scintillator - dual silicon photodiode detector module for

More information

arxiv: v2 [physics.ins-det] 8 Feb 2013

arxiv: v2 [physics.ins-det] 8 Feb 2013 Preprint typeset in JINST style - HYPER VERSION arxiv:1302.0278v2 [physics.ins-det] 8 Feb 2013 Investigation of gamma ray detection performance of thin LFS scintillator with MAPD readout E.Guliyev a, F.Ahmadov

More information

4- Locate the channel number of the peak centroid with the software cursor and note the corresponding energy. Record these values.

4- Locate the channel number of the peak centroid with the software cursor and note the corresponding energy. Record these values. EXPERIMENT 2.1 GAMMA ENERGY CALIBRATION 1- Turn the power supply on to 900 V. Turn the NIM crate on to power the amplifiers. Turn the Oscilloscope on to check the gamma pulses. The main amplifier should

More information

29th Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies

29th Monitoring Research Review: Ground-Based Nuclear Explosion Monitoring Technologies CHARACTERIZATION OF PHOSWICH WELL DETECTORS FOR RADIOXENON MONITORING Wolfgang Hennig 1, Hui Tan 1, William K. Warburton 1, Anthony Fallu-Labruyere 1, Konstantin Sabourov 1, Justin I. McIntyre 2, Matthew

More information

AUTOMATIC AND INTERACTIVE ANALYSIS SOFTWARE FOR BETA- GAMMA COINCIDENCE SYSTEMS USED IN CTBT MONITORING

AUTOMATIC AND INTERACTIVE ANALYSIS SOFTWARE FOR BETA- GAMMA COINCIDENCE SYSTEMS USED IN CTBT MONITORING ABSTRACT AUTOMATIC AND INTERACTIVE ANALYSIS SOFTWARE FOR BETA- GAMMA COINCIDENCE SYSTEMS USED IN CTBT MONITORING J. Rynes, K.M.F. Biegalski, P. Donohoe, and S. Biegalski Veridian Pacific-Sierra Research

More information

A coincidence method of thorium measurement

A coincidence method of thorium measurement A coincidence method of thorium measurement Nevenka Antovic a*, Perko Vukotic a and Nikola Svrkota b a Faculty of Natural Sciences and Mathematics, University of Montenegro, Cetinjski put b.b., 81000 Podgorica,

More information

arxiv: v1 [physics.ins-det] 29 Jun 2011

arxiv: v1 [physics.ins-det] 29 Jun 2011 Investigation of Large LGB Detectors for Antineutrino Detection P. Nelson a,, N. S. Bowden b, a Department of Physics, Naval Postgraduate School, Monterey, CA 99, USA b Lawrence Livermore National Laboratory,

More information

EXPERIMENTAL DETERMINATION OF THE URANIUM ENRICHMENT RATIO

EXPERIMENTAL DETERMINATION OF THE URANIUM ENRICHMENT RATIO NUCLER PHYSICS EXPERIMENTL DETERMINTION OF THE URNIUM ENRICHMENT RTIO. LUC Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), 407 tomistilor Street, PO Box MG-6, Magurele,

More information

Comparison of Several Detector Technologies for Measurement of Special Nuclear Materials i

Comparison of Several Detector Technologies for Measurement of Special Nuclear Materials i Comparison of Several Detector Technologies for Measurement of Special Nuclear Materials i A. E. Proctor, K. R. Pohl Constellation Technology Corporation, 7887 Bryan Dairy Road, Largo Fl 33777,U.S.A. Abstract

More information

WM2018 Conference, March 18-22, 2018, Phoenix, Arizona, USA. PVT and LaBr3(Ce)-based Radon Express Analyzers 18164

WM2018 Conference, March 18-22, 2018, Phoenix, Arizona, USA. PVT and LaBr3(Ce)-based Radon Express Analyzers 18164 PVT and LaBr3(Ce)-based Radon Express Analyzers 864 Vladislav Kondrashov *, Stephen Steranka* and Glenn Paulson** * RadComm Systems Corp. 293 Portland Dr, Oakville, Ontario L6H 5S4, CANADA ** Paulson and

More information

GAMMA RAY SPECTROSCOPY

GAMMA RAY SPECTROSCOPY GAMMA RAY SPECTROSCOPY Gamma Ray Spectroscopy 1 In this experiment you will use a sodium iodide (NaI) detector along with a multichannel analyzer (MCA) to measure gamma ray energies from energy level transitions

More information

High-Sensitivity Gamma-Ray Imaging With Double Sided Strip Detectors

High-Sensitivity Gamma-Ray Imaging With Double Sided Strip Detectors High-Sensitivity Gamma-Ray Imaging With Double Sided Strip Detectors Thomas Niedermayr, Morgan Burks, Lucian Mihailescu, Karl Nelson, David Lange, John Valentine, Kai Vetter Lawrence Livermore National

More information

Special Nuclear Material Detection Studies With The SMANDRA Mobile System

Special Nuclear Material Detection Studies With The SMANDRA Mobile System Special Nuclear Material Detection Studies With The SMANDRA Mobile System D. Cester a, G. Nebbia b, L. Stevanato a,b,g. Viesti a,b, F. Neri c, S. Petrucci c, S. Selmi c,c. Tintori c, P. Peerani d, A. Tomanin

More information

Studies involving discrete spectroscopy. Studies involving total absorption or calorimetry

Studies involving discrete spectroscopy. Studies involving total absorption or calorimetry 11/8/2016 1 Two general themes Studies involving discrete spectroscopy Typically involving high resolution Ge detectors Ex. 8p/GRIFFIN at TRIUMF-ISAC Studies involving total absorption or calorimetry Typically

More information

Introduction to Environmental Measurement Techniques Radioactivity. Dana Pittauer 1of 48

Introduction to Environmental Measurement Techniques Radioactivity. Dana Pittauer 1of 48 Introduction to Environmental Measurement Techniques 2016 Radioactivity Dana Pittauer (dpittauer@marum.de) 1of 48 Introduction Radioisotopes are of interest in environmental physics for several reasons:

More information

List of Nuclear Medicine Radionuclides. Nuclear Medicine Imaging Systems: The Scintillation Camera. Crystal and light guide

List of Nuclear Medicine Radionuclides. Nuclear Medicine Imaging Systems: The Scintillation Camera. Crystal and light guide Nuclear Medicine Imaging Systems: The Scintillation Camera List of Nuclear Medicine Radionuclides Tc99m 140.5 kev 6.03 hours I-131 364, 637 kev 8.06 days I-123 159 kev 13.0 hours I-125 35 kev 60.2 days

More information

M E E T I n s t r u m e n t s G.m.b.H.

M E E T I n s t r u m e n t s G.m.b.H. T a m a r i s k e n g a s s e 1 0 2 / 1 3 / 5 A - 1 2 2 0 V i e n n a, A U S T R I A T e l : + 4 3 1 2 8 5 4 5 7 2, F a x : + 4 3 1 2 8 3 6 4 2 9 E - m a i l : office@mateval.com www.mateval.com Portable

More information

Coincidence gamma-ray spectrometry

Coincidence gamma-ray spectrometry Downloaded from orbit.dtu.dk on: Dec 28, 2018 Coincidence gamma-ray spectrometry Markovic, Nikola; Roos, Per; Nielsen, Sven Poul Published in: Proceedings of the 11th Symposium of the Croatian

More information

1 Introduction. 2 Method. Robert Metzger 1,*, Kenneth Van Riper 2, and George Lasche 3

1 Introduction. 2 Method. Robert Metzger 1,*, Kenneth Van Riper 2, and George Lasche 3 Uranium, radium and thorium in soils with high-resolution gamma spectroscopy, MCNP-generated efficiencies, and VRF non-linear full-spectrum nuclide shape fitting Robert Metzger 1,*, Kenneth Van Riper 2,

More information

Non-Destructive Assay Applications Using Temperature-Stabilized Large Volume CeBr Detectors 14277

Non-Destructive Assay Applications Using Temperature-Stabilized Large Volume CeBr Detectors 14277 Non-Destructive Assay Applications Using Temperature-Stabilized Large Volume CeBr Detectors 14277 D. Nakazawa and F. Bronson Canberra Industries Inc., 800 Research Parkway, Meriden, CT, 06450, USA. ABSTRACT

More information

High Purity Germanium Detector Calibration at ISOLDE

High Purity Germanium Detector Calibration at ISOLDE High Purity Germanium Detector Calibration at ISOLDE Guðmundur Kári Stefánsson Summer Student of Maria Borge September 5, 2013 Abstract: This Summer Student Project involved the test and calibration of

More information

IDENTIFICATION AND QUANTIFICATION OF RADIONUCLIDES IN HISTORICAL WASTE AT ANSTO

IDENTIFICATION AND QUANTIFICATION OF RADIONUCLIDES IN HISTORICAL WASTE AT ANSTO IDENTIFICATION AND QUANTIFICATION OF RADIONUCLIDES IN HISTORICAL WASTE AT ANSTO McOrist G D., Bowles C.J., Fernando K. and Wong R. Australian Nuclear Science and Technology Organisation Australia Abstract

More information

Waveform Analysis for DM-Ice17. Zachary Pierpoint University of Wisconsin - Madison October 21, 2013 Yale Weak Interactions Discussions Group

Waveform Analysis for DM-Ice17. Zachary Pierpoint University of Wisconsin - Madison October 21, 2013 Yale Weak Interactions Discussions Group Waveform Analysis for DM-Ice17 Zachary Pierpoint University of Wisconsin - Madison October 21, 213 Yale Weak Interactions Discussions Group DM-Ice17 Energy Spectrum counts / day / kev / kg 1 28 Tl+ 214

More information

LANTHANUM BROMIDE SCINTILLATION DETECTOR FOR GAMMA SPECTROMETRY APPLIED IN INTERNAL RADIOACTIVE CONTAMINATION MEASUREMENTS

LANTHANUM BROMIDE SCINTILLATION DETECTOR FOR GAMMA SPECTROMETRY APPLIED IN INTERNAL RADIOACTIVE CONTAMINATION MEASUREMENTS U.P.B. Sci. Bull., Series A Vol. 73, Iss. 4, 211 ISSN 1223-727 LANTHANUM BROMIDE SCINTILLATION DETECTOR FOR GAMMA SPECTROMETRY APPLIED IN INTERNAL RADIOACTIVE CONTAMINATION MEASUREMENTS Mirela Angela SAIZU

More information

Calorimetry in particle physics experiments

Calorimetry in particle physics experiments Calorimetry in particle physics experiments Unit N. 9 The NA48 ECAL example (LKR) Roberta Arcidiacono R. Arcidiacono Calorimetry 1 Lecture overview The requirements Detector layout & construction Readout

More information

Gamma-ray spectroscopy with the scintillator/photomultiplierand with the high purity Ge detector: Compton scattering, photoeffect, and pair production

Gamma-ray spectroscopy with the scintillator/photomultiplierand with the high purity Ge detector: Compton scattering, photoeffect, and pair production Experiment N2: Gamma-ray spectroscopy with the scintillator/photomultiplierand with the high purity Ge detector: Compton scattering, photoeffect, and pair production References: 1. Experiments in Nuclear

More information

DETERMINING THE ISOTOPIC CONCENTRATION OF URANIUM FROM VECTOR REPRESENTATION OF THE GAMMA SPECTRUM

DETERMINING THE ISOTOPIC CONCENTRATION OF URANIUM FROM VECTOR REPRESENTATION OF THE GAMMA SPECTRUM DETERMINING THE ISOTOPIC CONCENTRATION OF URANIUM FROM VECTOR REPRESENTATION OF THE GAMMA SPECTRUM A Thesis submitted to the Faculty of the Graduate School of Arts and Sciences of Georgetown University

More information

Reactor On/Off Monitoring with a Prototype of Plastic Anti-neutrino Detector Array (PANDA)

Reactor On/Off Monitoring with a Prototype of Plastic Anti-neutrino Detector Array (PANDA) Reactor On/Off Monitoring with a Prototype of Plastic Anti-neutrino Detector Array (PANDA) Yasuhiro Kuroda A, Yo Kato A, Nozomu Tomita A, Ryoko Nakata, Shugo Oguri, Chikara Ito B, Yoshizumi Inoue C, Makoto

More information

Investigation of Uncertainty Sources in the Determination of Gamma Emitting Radionuclides in the WBC

Investigation of Uncertainty Sources in the Determination of Gamma Emitting Radionuclides in the WBC Investigation of Uncertainty Sources in the Determination of Gamma Emitting Radionuclides in the WBC A. Specification Whole body counting method is used to detect the gamma rays emitted by radio nuclides,

More information

The Versatile Array of Neutron Detectors at Low Energy

The Versatile Array of Neutron Detectors at Low Energy The Versatile Array of Neutron Detectors at Low Energy S. V. Paulauskas, R. Grzywacz, M. Madurga, D. Miller, S. Padgett, W. A. Peters, and the VANDLE Collaboration Why use the time-of-flight technique?

More information

Dual Isotope Imaging with LaBr3:Ce Crystal and H8500 PSPMT

Dual Isotope Imaging with LaBr3:Ce Crystal and H8500 PSPMT Dual Isotope Imaging with LaBr3:Ce Crystal and H8500 PSPMT Dr. Andrea Fabbri, University of Rome Roma Tre I.N.F.N. (National Institue of Nuclear Physics) γ-ray imaging with scintillator and PSPMT γ-ray

More information

Library of uranium and plutonium reference spectra Introduction

Library of uranium and plutonium reference spectra Introduction Library of uranium and plutonium reference spectra Introduction Due to the difficulties in procuring and circulating certified uranium or plutonium samples, the ESARDA Working Group on Techniques and Standards

More information

Simulation of 4π HPGe Compton-Suppression spectrometer

Simulation of 4π HPGe Compton-Suppression spectrometer Vol. 9(2), pp. 13-19, 30 January, 2014 DOI: 10.5897/IJPS2013.4075 ISSN 1992-1950 2014 Academic Journals http://www.academicjournals.org/ijps International Journal of Physical Sciences Full Length Research

More information

IAEA-SM-367/10/04/P SCREENING AND RADIOMETRIC MEASUREMENT OF ENVIRONMENTAL SWIPE SAMPLES

IAEA-SM-367/10/04/P SCREENING AND RADIOMETRIC MEASUREMENT OF ENVIRONMENTAL SWIPE SAMPLES IAEA-SM-367/10/04/P SCREENING AND RADIOMETRIC MEASUREMENT OF ENVIRONMENTAL SWIPE SAMPLES V. MAIOROV, A. CIURAPINSKI, W. RAAB and V. JANSTA Safeguards Analytical Laboratory, International Atomic Energy

More information

Overview of Current Radioxenon Research

Overview of Current Radioxenon Research Overview of Current Radioxenon Research C. Sivels 1, T. Cousins 1, S. Clarke 1, S. Pozzi 1, J. McIntyre 2, A. Prinke 2, E. Padovani 3 1 University of Michigan, Department of Nuclear Engineering and Radiological

More information

national security, nonproliferation, defense, border security, and homeland security applications.

national security, nonproliferation, defense, border security, and homeland security applications. CLYC versus Stilbene: Optimization and comparison of two neutron-gamma discriminating scintillators Stephen Asztalos Wolfgang Hennig Abstract CLYC is a novel scintillator with excellent pulse shape discrimination

More information

Neutron and Gamma Ray Imaging for Nuclear Materials Identification

Neutron and Gamma Ray Imaging for Nuclear Materials Identification Neutron and Gamma Ray Imaging for Nuclear Materials Identification James A. Mullens John Mihalczo Philip Bingham Oak Ridge National Laboratory Oak Ridge, Tennessee 37831-6010 865-574-5564 Abstract This

More information

Digital Gamma-ray Spectroscopy & Imaging with Semiconductor detectors Frontiers of gamma-ray spectroscopy

Digital Gamma-ray Spectroscopy & Imaging with Semiconductor detectors Frontiers of gamma-ray spectroscopy Digital Gamma-ray Spectroscopy & Imaging with Semiconductor detectors Frontiers of gamma-ray spectroscopy AGATA GRETA Dr Andy Boston ajboston@liv.ac.uk And its applications The AGATA Concept Without Compton

More information

ARTICLE IN PRESS. Nuclear Instruments and Methods in Physics Research A

ARTICLE IN PRESS. Nuclear Instruments and Methods in Physics Research A Nuclear Instruments and Methods in Physics Research A 62 (29) 52 524 Contents lists available at ScienceDirect Nuclear Instruments and Methods in Physics Research A journal homepage: www.elsevier.com/locate/nima

More information

hν' Φ e - Gamma spectroscopy - Prelab questions 1. What characteristics distinguish x-rays from gamma rays? Is either more intrinsically dangerous?

hν' Φ e - Gamma spectroscopy - Prelab questions 1. What characteristics distinguish x-rays from gamma rays? Is either more intrinsically dangerous? Gamma spectroscopy - Prelab questions 1. What characteristics distinguish x-rays from gamma rays? Is either more intrinsically dangerous? 2. Briefly discuss dead time in a detector. What factors are important

More information

Measurement of 37 Ar to support technology for On-site Inspection under the Comprehensive Nuclear-Test-Ban Treaty

Measurement of 37 Ar to support technology for On-site Inspection under the Comprehensive Nuclear-Test-Ban Treaty 1 Measurement of Ar to support technology for On-site Inspection under the Comprehensive Nuclear-Test-Ban Treaty C.E. Aalseth, A.R. Day, D.A. Haas, E.W. Hoppe, B.J. Hyronimus, M.E. Keillor, E.K. Mace,

More information

QuantumMCA QuantumNaI QuantumGe QuantumGold

QuantumMCA QuantumNaI QuantumGe QuantumGold QuantumMCA QuantumNaI QuantumGe QuantumGold Berkeley Nucleonics Corporation (San Rafael, CA) and Princeton Gamma Tech (Princeton, NJ) have partnered to offer gamma spectroscopy with either germanium or

More information

Ultra-Low Background Measurement Capabilities At SNOLAB

Ultra-Low Background Measurement Capabilities At SNOLAB Ultra-Low Background Measurement Capabilities At SNOLAB Ian Lawson SNOLAB Greater Sudbury, Canada Torino, Italy 1 Brief Outline Motivation for low background counters Advantages of being deep Current facilities

More information

ORTEC AN34 Experiment 10 Compton Scattering

ORTEC AN34 Experiment 10 Compton Scattering EQUIPMENT NEEDED FROM ORTEC 113 Preamplifier (2 ea.) TRUMP-PCI-2K MCA System including suitable PC operating Windows 98/2000/XP (other ORTEC MCAs may be used) 266 Photomultiplier Tube Base (2 ea.) 4001A/4002D

More information

Timing and Energy Response of Six Prototype Scintillators

Timing and Energy Response of Six Prototype Scintillators Timing and Energy Response of Six Prototype Scintillators CCM Kyba 1, J Glodo 2, EVD van Loef 2, JS Karp 1, KS Shah 2 1 University of Pennsylvania 2 Radiation Monitoring Devices SCINT 2007 June 7, 2007

More information

Radiation Detection and Measurement

Radiation Detection and Measurement Radiation Detection and Measurement June 2008 Tom Lewellen Tkldog@u.washington.edu Types of radiation relevant to Nuclear Medicine Particle Symbol Mass (MeV/c 2 ) Charge Electron e-,! - 0.511-1 Positron

More information

CHIPP Plenary Meeting University of Geneva, June 12, 2008 W. Lustermann on behalf of the AX PET Collaboration

CHIPP Plenary Meeting University of Geneva, June 12, 2008 W. Lustermann on behalf of the AX PET Collaboration CHIPP Plenary Meeting University of Geneva, June 12, 2008 W. Lustermann on behalf of the AX PET Collaboration INFN Bari, Ohio State University, CERN, University of Michigan, University of Oslo, INFN Roma,

More information

An Improved U-Pu System for Field Pu Measurements

An Improved U-Pu System for Field Pu Measurements An Improved U-Pu System for Field Pu Measurements Markku J. Koskelo and Gary Gardner Canberra Industries, Inc., Meriden, CT, USA Abstract With high resolution gamma spectrometry using the 4 original Multi

More information

Identification of Naturally Occurring Radioactive Material in Sand

Identification of Naturally Occurring Radioactive Material in Sand Identification of Naturally Occurring Radioactive Material in Sand Michael Pope 2012 NSF/REU Program Physics Department, University of Notre Dame Advisors: Dr. Ed Stech, Dr. Michael Wiescher Abstract Radionuclides

More information

Design of a virtual model of a hand-held Germanium detector and a voxelized ICRP whole body phantom: A Monte Carlo study

Design of a virtual model of a hand-held Germanium detector and a voxelized ICRP whole body phantom: A Monte Carlo study Design of a virtual model of a hand-held Germanium detector and a voxelized ICRP whole body phantom: A Monte Carlo study ASM SABBIR AHMED 1, Gary H Kramer 2, Kurt Ungar 2 1 University of Saskatchewan,

More information

Gamma-ray spectroscopy with the scintillator/photomultiplierand with the high purity Ge detector: Compton scattering, photoeffect, and pair production

Gamma-ray spectroscopy with the scintillator/photomultiplierand with the high purity Ge detector: Compton scattering, photoeffect, and pair production Experiment N2: Gamma-ray spectroscopy with the scintillator/photomultiplierand with the high purity Ge detector: Compton scattering, photoeffect, and pair production References: 1. Experiments in Nuclear

More information

HIGH-PRESSURE HELIUM-3 SCINTILLATION POSITION-SENSITIVE DETECTOR OF THERMAL NEUTRONS

HIGH-PRESSURE HELIUM-3 SCINTILLATION POSITION-SENSITIVE DETECTOR OF THERMAL NEUTRONS HIGH-PRESSURE HELIUM-3 SCINTILLATION POSITION-SENSITIVE DETECTOR OF THERMAL NEUTRONS A. Bolozdynya 1, A. Bolotnikov, J. Richards Constellation Technology Corporation, 7887 Bryan Dairy Rd., Largo, FL 33777

More information

Nuclear fission as a tool to contrast the contraband of special nuclear material

Nuclear fission as a tool to contrast the contraband of special nuclear material PRAMANA c Indian Academy of Sciences Vol. 85, No. 3 journal of September 2015 physics pp. 497 504 Nuclear fission as a tool to contrast the contraband of special nuclear material VIESTI GIUSEPPE 1, CESTER

More information

Practical Gamma-ray Spectrometry

Practical Gamma-ray Spectrometry Practical Gamma-ray Spectrometry 2nd Edition Gordon R. Gilmore Nuclear Training Services Ltd Warrington, UK John Wiley & Sons, Ltd Contents Preface to the Second Edition xv 1.9.2 A source of generic information

More information

Distinguishing fissions of 232 Th, 237 Np and 238 U with beta-delayed gamma rays

Distinguishing fissions of 232 Th, 237 Np and 238 U with beta-delayed gamma rays Distinguishing fissions of 232, 237 and 238 with beta-delayed gamma rays A. Iyengar 1, E.B. Norman 1, C. Howard 1, C. Angell 1, A. Kaplan 1, J. J. Ressler 2, P. Chodash 1, E. Swanberg 1, A. Czeszumska

More information

A Radiation Monitoring System With Capability of Gamma Imaging and Estimation of Exposure Dose Rate

A Radiation Monitoring System With Capability of Gamma Imaging and Estimation of Exposure Dose Rate IEEE TRANSACTIONS ON NUCLEAR SCIENCE, VOL. 49, NO. 3, JUNE 2002 1547 A Radiation Monitoring System With Capability of Gamma Imaging and Estimation of Exposure Dose Rate Wanno Lee, Gyuseong Cho, and Ho

More information

Researchers at the University of Missouri-Columbia have designed a triple crystal

Researchers at the University of Missouri-Columbia have designed a triple crystal Childress, N. L. and W. H. Miller, MCNP Analysis and Optimization of a Triple Crystal Phoswich Detector, Nuclear Instruments and Methods, Section A, 490(1-2), 263-270 (Sept 1, 2002). Abstract Researchers

More information

Multi Channel Analyzer (MCA) Analyzing a Gamma spectrum

Multi Channel Analyzer (MCA) Analyzing a Gamma spectrum Multi Channel Analyzer (MCA) Analyzing a Gamma spectrum Objective: Using the MCA to acquire spectrums for different gamma sources and to identify an unknown source from its spectrum, furthermore to investigate

More information

Studies of Hadron Calorimeter

Studies of Hadron Calorimeter Studies of Hadron Calorimeter Zhigang Wang Institute of High Energy Physics 2012.10.17 in IHEP Outline 1,The Dark Matter Calorimeter 2,The Hadron Calorimeter(HCAL) 3, Summary 1,Dark Matter Calorimeter

More information

Prospects for achieving < 100 ps FWHM coincidence resolving time in time-of-flight PET

Prospects for achieving < 100 ps FWHM coincidence resolving time in time-of-flight PET Prospects for achieving < 100 ps FWHM coincidence resolving time in time-of-flight PET, 28-Feb-2012, ICTR-PHE, Geneva, Switzerland 1 Time-of-flight PET Colon cancer, left upper quadrant peritoneal node

More information

Monte-Carlo Simulation of Response Functions for Natural Gamma-Rays in LaBr 3 Detector System with Complex Borehole Configurations

Monte-Carlo Simulation of Response Functions for Natural Gamma-Rays in LaBr 3 Detector System with Complex Borehole Configurations Monte-Carlo Simulation of Response Functions for Natural Gamma-Rays in LaBr 3 Detector System with Complex Borehole Configurations WU Yongpeng ( ) 1,2, TANG Bin ( ) 2 1 Department of Engineering Physics,

More information

IAEA-TECDOC-1049 XA

IAEA-TECDOC-1049 XA IAEA-TECDOC-1049 XA9848352.. Software The originating Section of this publication in the IAEA was Physics Section International Atomic Energy Agency Wagramer Strasse 5 With FOREWORD EDITORIAL NOTE In

More information

Testing DAMA/LIBRA signal with ANAIS-112

Testing DAMA/LIBRA signal with ANAIS-112 Testing DAMA/LIBRA signal with ANAIS-112 M. Martinez, On behalf of the ANAIS coll. 3rd IBS-MultiDark-IPPP Workshop, 21-25 November 2016, Lumley Castel, Durham OUTLINE The ANAIS program Detectors performance

More information

STATUS OF ATLAS TILE CALORIMETER AND STUDY OF MUON INTERACTIONS. 1 Brief Description of the ATLAS Tile Calorimeter

STATUS OF ATLAS TILE CALORIMETER AND STUDY OF MUON INTERACTIONS. 1 Brief Description of the ATLAS Tile Calorimeter STATUS OF ATLAS TILE CALORIMETER AND STUDY OF MUON INTERACTIONS L. E. PRICE Bldg 362, Argonne National Laboratory, Argonne, IL 60439, USA E-mail: lprice@anl.gov (For the ATLAS Tile Calorimeter Collaboration)

More information

Figure 1. Decay Scheme for 60Co

Figure 1. Decay Scheme for 60Co Department of Physics The University of Hong Kong PHYS3851 Atomic and Nuclear Physics PHYS3851- Laboratory Manual A. AIMS 1. To learn the coincidence technique to study the gamma decay of 60 Co by using

More information

Neutron pulse height analysis (R405n)

Neutron pulse height analysis (R405n) Neutron pulse height analysis (R405n) Y. Satou April 6, 2011 Abstract A pulse height analysis was made for the neutron counter hodoscope used in R405n. By normalizing the pulse height distributions measured

More information

International Journal of Scientific & Engineering Research, Volume 5, Issue 3, March-2014 ISSN

International Journal of Scientific & Engineering Research, Volume 5, Issue 3, March-2014 ISSN 316 Effective atomic number of composite materials by Compton scattering - nondestructive evaluation method Kiran K U a, Ravindraswami K b, Eshwarappa K M a and Somashekarappa H M c* a Government Science

More information

Investigation of Uncertainty Sources in the Determination of Gamma Emitting Radionuclides in the UAL

Investigation of Uncertainty Sources in the Determination of Gamma Emitting Radionuclides in the UAL Investigation of Uncertainty Sources in the Determination of Gamma Emitting Radionuclides in the UAL A. Specification Gamma-spectrometry method is used to identify and determine the activity concentration

More information