Measurement of the n_tof beam profile in the second experimental area (EAR2) using a silicon detector
|
|
- Juliet Carr
- 5 years ago
- Views:
Transcription
1 Measurement of the n_tof beam profile in the second experimental area (EAR) using a silicon detector Fidan Suljik Supervisors: Dr. Massimo Barbagallo & Dr. Federica Mingrone September 8, 7 Abstract A new beam line and a second experimental area (EAR) have been recently built at the neutron Time- Of-Flight (n_tof) facility at CERN. The characterization of the neutron beam in terms of spatial profile is a prerequisite for high accuracy cross-sections measurements. A silicon strip detector equipped with a neutron converter has been used to determine the beam profile as a function of incident neutron energy, in particular neutron beam profile has been measured from thermal energy up to ev. Preliminary results have been compared with those collected with a MicroMegas detector also installed during the measurement. Introduction High accuracy measurements of cross sections for neutron-induced reactions are performed at n_tof, the neutron Time-Of-Flight facility at CERN [], producing important data for several fields such as nuclear astrophysics, nuclear technology, fundamental physics and medical physics. To this end, GeV protons are accelerated at the CERN s Proton Synchrotron (PS), with typically 7 protons per pulse, and impinge on a lead target. As a result of the spallation process taking place and the subsequent moderation, a white spectrum of neutrons is produced []. Two neutron beam lines lead the neutrons to the corresponding experimental areas, the first one (EAR) located in the horizontal direction at 8 m from the target and the newly built second experimental area (EAR) reached through a shorter vertical flight path of about 9 m. The aim of this work is to determine the beam profile in EAR using a silicon strip detector. In particular it is important to determine the profile as function of incident neutron energy. neutron beam profile the detector is coupled to a LiF converter layer, deposited onto a carbon fibre plate ( mm thick), which can be seen in Figure. The converting reaction proceeds as follows: Li + n H (.7 MeV) + α (. MeV) () As depicted in Figure b, after a neutron is captured an alpha and a triton are emitted and eventually detected in the silicon strips according to the efficiency of the system. (a) (b) SiMonD detector The neutron beam profile monitor SiMonD is a x + y strip double sided silicon detector having x cm total active area and µm thickness, while each strip is mm wide []. In order to measure Figure : View of the strips of the front layer ( - ) of SiMonD and scheme of the interaction of the incoming neutron with the converter layer and detection of the produced particles. For the measurement, the neutron beam is coming from the bottom with the front layer of the detector facing directly the beam.
2 Laboratory test In order to get hands on the detector and the corresponding electronics, a laboratory test was conducted and the energy resolution was investigated. Figure : Scheme of the setup for the laboratory test. An Am- alpha source of 9.9 kbq was placed in a vacuum chamber, facing the SiMonD detector (see scheme of the setup in Figure ). The signals from the detector are transported through two vacuumtight feedthrough connectors to the preamplifier and subsequently to the amplifier and the multichannel analyzer (MCA). The spectrum presenting the alpha peak for each strip was collected. As an example the spectrum recorded for strip is reported in Figure. counts [a.u.] Strip 8 8 Figure : Alpha source spectrum for one the strips during the laboratory test. A preliminary energy resolution was extracted for each strip and the data acquired were later on compared with values extracted during the in-beam measurement. Measurement and data analysis The measurement for the beam profile was performed in two configurations and using two different detec- Figure : Setup of the measurement (Config. B): upper position for the SiMonD detector with the neutron beam coming from the bottom. tors, SiMonD and an ancillary XY-MicroMegas, in order to be able to compare independent results. Moreover, the beam profile was measured at two different positions, where normally samples are placed during physics run at n_tof. In the first configuration (Config. A), SiMonD is placed in the lower position with respect to the Micromegas detector, facing directly the neutron beam coming from the bottom. The positions of the detectors are inverted in the second configuration shown in Figure (Config. B). In the picture, it is possible to see the vacuum chamber and the preamplifiers used for the silicon detector, as well as its actuator to insert and to remove the detector from the beam axis. After the completion of the measurement, the data analysis was performed. First, the amplitude spectrum has been investigated for all the strips, as it is presented for strip in Figure. Both alpha and triton peaks are well separated from the signals induced by background and electronic noise, nevertheless in the data analysis only the triton peak was used as a signature of the occurrence of neutron capture in the LiF sample. The stability of the detector response was checked in
3 counts [a.u.] Strip Figure : Amplitude spectrum for strip : each run is drawn in a different color in order to check the stability of the response of the detector. Figure 7: Gaussian fit of the triton peak for one strip of the front layer for the determination of the energy resolution. 8 8 Strip : Mean of gaussian fit run number Figure : Stability of strip. As expected, the gain has a decreasing trend but the variation is less than %. order to investigate possible degradation of the detector performances during the measurement. Indeed, since the detector is directly placed in the beam, the radiation damage in the silicon crystal lattice could affect the accuracy of the results. Figure presents the evolution of the position of the triton peak with respect to the run number for a selected strip, showing only a % change. The position of the peak is defined as being the mean of its gaussian fit. The effect of such a small change is completely negligible in terms of results provided by the measurement. The energy resolution of the strips of the detector was also determined by fitting the triton peak with a gaussian. Figure 7 shows a selected strip of the detector. Resolution (%) 8 Front Back 8 strip number Figure 8: Energy resolution for the strips of the front and back layers, which is better for central strips. FWHM E, The energy resolution defined as R = where E is the center of the peak, is reported in Figure 8 for all the strips, and it is between % and % in general. It is possible to see that the energy resolution is better for the middle strips and the results are consistent with what expected. It is important to note that each strip may have different levels of radiation damage. In order to extract the beam profile, coincidence events between strips on the front side and in the back side were taken in consideration. Prior to that, a suitable threshold in amplitude must be applied to each strip to select the triton peak, allowing the reconstruction of the X-Y neutron distribution. To this purpose, a proper time-of-flight to energy calibration had to be applied. If L [m] is the effective path and t [µs] the flight time, the non-relativistic neutron en-
4 Cut for tritons (strip ) Results The profile for configuration A (SiMonD in lower position) and for different energy decades, obtained by selecting corresponding intervals of time of flight, can be seen in Figure. neutron energy [ev] Figure 9: Energy deposited in strip as a function of neutron energy. In red is reported the threshold condition used for the selection of the triton peak. Reproduction of the Li(n,α)t cross section Li(n,α)t cross section data (normalized to neutron flux) 7 neutron energy (ev) Figure : Cross section of the reaction Li(n, α)t and normalized data. The curves are superimposed in the energy range from to ev. ergy E [ev] is given by []: ( ) 7, 9 L E =, () t the relativistic expression (or relativistic corrections) should be used above a few kev. The energy deposited (amplitude) as a function of the neutron energy could then be determined and the proper cuts selected, as shown in Figure 9 for strip. In order to determine the neutron energy range where the response of the detector is reliable, it has been checked how the reference Li(n, α)t cross section matches the data collected. As can be seen in Figure, it resulted that the detector could provide accurate data up to ev ev - ev ev - ev Figure : Profile for different energy windows for config. A. The detector is not reliable anymore after ev. One observes that the profile is similar for energy decades from to ev, but it is not well reconstructed after ev, the detector being not reliable anymore beyond this energy. The profile integrated over all the energy range obtained with SiMonD is shown in Figures a and b for configurations A and B respectively. Investigating the sigma of the beam and the mean position in both directions, one observes that from the lower to the upper position the sigma of the beam increases, as expected since the beam is less focused at that position. Moreover, one can see that the shape changes slightly to a more turned and sharp ellipse, visible for example in the bottom right part of the shape. Indeed, in both configurations, the sigma of the beam is different in the two directions (the Y direction is less gaussian than the X direction), meaning that it is more elliptical rather than circular. The comparison of these first results with the ones obtained with the XY-MicroMegas detector shows that the results are compatible, since the shape and 8
5 - Beam profile: < En < (ev) 8 (a) SiMonD : lower position (Config. A) 8 - Beam profile: < En < (ev) 8 (b) SiMonD : upper position (Config. B) 8 I would like to express my gratitude also to Dr. M. Diakaki for her analysis using the MicroMegas detector and all the resulting discussions about the comparison of the preliminary results. Finally, I wish to thank all n_tof members for their warm welcome and for making this project possible. References 7 (c) XYMGAS : lower position (d) XYMGAS : upper position Figure : Beam profile obtained with SiMonD and XYMGAS (Courtesy of M. Diakaki) for both configurations. the behavior of the sigma of the beam are similar, increasing comparably from lower to upper position. Figures c and d present the profile integrated over the energy range for the two configurations with the XY-MicroMegas. The beam profiles obtained by the detectors for a given configuration are in agreement. [] F. Gunsing et al., Nuclear data activities at the n_tof facility at CERN, The European Physical Journal Plus () : 7 [] M. Barbagallo et al., High-accuracy determination of the neutron flux at n_tof, The European Physical Journal A () 9: [] L. Consentino et al., Silicon detectors for monitoring neutron beams in n-tof beamlines, Review of Scientific Instruments 8, 79 () [] G. Lorusso et al., Time-energy relation of the n_tof neutron beam: energy standards revisited, Nuclear Instruments and Methods in Physics Research A () - Conclusions The characterization of the n_tof beam in EAR in terms of spatial profile was performed using the silicon strip detector SiMonD, in an energy range from to ev. The extracted profile was compared with results from another detector (XY-MicroMegas) used for the measurement during the same experiment. The first comparison shows consistency of the results obtained. 7 Acknowledgements I would like to sincerely thank Dr. M. Barbagallo and Dr. F. Mingrone for their availability, help and valuable suggestions throughout this work.
Silicon detectors for the n-tof neutron beams monitoring
Silicon detectors for the n-tof neutron beams monitoring L. Cosentino 1, A. Musumarra 1,2, M. Barbagallo 3, N. Colonna 3, L. Damone 3, A. Pappalardo 1, M. Piscopo 1, P. Finocchiaro 1 for the n-tof collaboration
More informationPresent and Future of Fission at n_tof
16th ASRC International Workshop " Nuclear Fission and Structure of Exotic Nuclei " Present and Future of Fission at n_tof Christina Weiss, CERN, Geneva/Switzerland 20.03.2014 Present and Future of Fission
More informationNeutron cross sections in stellar nucleosynthesis: study of the key isotope 25 Mg
Neutron cross sections in stellar nucleosynthesis: study of the key isotope 25 Mg SIF - XCIX Congresso Nazionale, Trieste 26 Settembre 2013 Stellar nucleosynthesis Elements in stars are mainly produced
More informationAlpha-energies of different sources with Multi Channel Analyzer (Item No.: P )
Alpha-energies of different sources with Multi Channel Analyzer (Item No.: P2522015) Curricular Relevance Area of Expertise: ILIAS Education Level: Physik Topic: Hochschule Subtopic: Moderne Physik Experiment:
More informationMeasurementof 7 Be(n,α) and 7 Be(n,p) cross sections for the Cosmological Li problem in
Measurementof Be(n,α) and Be(n,p) cross sections for the Cosmological Li problem in EAR2@n_TOF M. Barbagallo, A. Musumarra, L. Cosentino, N. Colonna, P. Finocchiaro, A. Pappalardo and the n_tof Collaboration
More informationExperimental neutron capture data of 58 Ni from the CERN n TOF facility
Introduction n TOF facility Data analysis Experimental neutron capture data of 58 Ni from the CERN n TOF facility Department of Physics, Faculty of Science, University of Zagreb 25. August 2014. Overview
More informationAlpha-Energies of different sources with Multi Channel Analyzer
Physical Structure of Matter Radioactivity Alpha-Energies of different sources with Multi Channel Analyzer What you can learn about Decay series Radioactive equilibrium Isotopic properties Decay energy
More informationBe(n,a) and 7 Be(n,p) cross-sections measurement for the Cosmological Lithium problem at the n_tof facility at CERN
Be(n,a) and 7 Be(n,p) cross-sections measurement for the Cosmological Lithium problem at the n_tof facility at CERN M. Barbagallo, N. Colonna, L. Cosentino, A. Musumarra, L. Damone, M. Mastromarco, P.
More informationHe-3 Neutron Detectors
Application He-3 Neutron Detectors General Considerations, Applications: He-3 filled proportional counters are standard neutron detectors and are most suitable for the detection of thermal neutrons. Larger
More informationThe Compact Muon Solenoid Experiment. Conference Report. Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland
Available on CMS information server CMS CR -2018/225 The Compact Muon Solenoid Experiment Conference Report Mailing address: CMS CERN, CH-1211 GENEVA 23, Switzerland 27 September 2018 (v2, 19 November
More informationTheory English (Official)
Q3-1 Large Hadron Collider (10 points) Please read the general instructions in the separate envelope before you start this problem. In this task, the physics of the particle accelerator LHC (Large Hadron
More informationPerformance of high pressure Xe/TMA in GEMs for neutron and X-ray detection
Performance of high pressure Xe/TMA in GEMs for neutron and X-ray detection R. Kreuger, C. W. E. van Eijk, Member, IEEE, F. A. F. Fraga, M. M. Fraga, S. T. G. Fetal, R. W. Hollander, Member, IEEE, L. M.
More informationNuclear Cross-Section Measurements at the Manuel Lujan Jr. Neutron Scattering Center
1 Nuclear Cross-Section Measurements at the Manuel Lujan Jr. Neutron Scattering Center M. Mocko 1, G. Muhrer 1, F. Tovesson 1, J. Ullmann 1 1 LANSCE, Los Alamos National Laboratory, Los Alamos NM 87545,
More informationNuclear cross-section measurements at the Manuel Lujan Jr. Neutron Scattering Center. Michal Mocko
Nuclear cross-section measurements at the Manuel Lujan Jr. Neutron Scattering Center Michal Mocko G. Muhrer, F. Tovesson, J. Ullmann International Topical Meeting on Nuclear Research Applications and Utilization
More informationn_tof EAR-1 Simulations Neutron fluence Spatial profile Time-to-energy
n_tof EAR-1 Simulations Neutron fluence Spatial profile Time-to-energy A. Tsinganis (CERN/NTUA), V. Vlachoudis (CERN), C. Guerrero (CERN) and others n_tof Annual Collaboration Meeting Lisbon, December
More informationPrecision neutron flux measurement with a neutron beam monitor
Journal of Physics: Conference Series OPEN ACCESS Precision neutron flux measurement with a neutron beam monitor To cite this article: T Ino et al 2014 J. Phys.: Conf. Ser. 528 012039 View the article
More informationThe Possibility to Use Energy plus Transmutation Setup for Neutron Production and Transport Benchmark Studies
The Possibility to Use Energy plus Transmutation Setup for Neutron Production and Transport Benchmark Studies V. WAGNER 1, A. KRÁSA 1, M. MAJERLE 1, F. KŘÍŽEK 1, O. SVOBODA 1, A. KUGLER 1, J. ADAM 1,2,
More informationNuclear Instruments and Methods in Physics Research A
Nuclear Instruments and Methods in Physics Research A 712 (2013) 8 112 Contents lists available at SciVerse ScienceDirect Nuclear Instruments and Methods in Physics Research A journal homepage: www.elsevier.com/locate/nima
More informationThe Use of Neutron Generators for the Detection of Illicit Materials in the Sea Transportation System
The Use of Neutron Generators for the Detection of Illicit Materials in the Sea Transportation System G. Nebbia 1), M. Lunardon 1), S. Moretto 1), S. Pesente 1), G. Viesti 1), A. Fontana 2), A. Zenoni
More informationThe possibility to use energy plus transmutation set-up for neutron production and transport benchmark studies
PRAMANA c Indian Academy of Sciences Vol. 68, No. 2 journal of February 2007 physics pp. 297 306 The possibility to use energy plus transmutation set-up for neutron production and transport benchmark studies
More informationFlux and neutron spectrum measurements in fast neutron irradiation experiments
Flux and neutron spectrum measurements in fast neutron irradiation experiments G.Gorini WORKSHOP A neutron irradiation facility for space applications Rome, 8th June 2015 OUTLINE ChipIr and SEE: New Istrument
More informationNeutron cross-section measurements at the n_tof facility at CERN
Nuclear Instruments and Methods in Physics Research B 213 (2004)49 54 www.elsevier.com/locate/nimb Neutron cross-section measurements at the n_tof facility at CERN N. Colonna *, The n_tof Collaboration
More informationarxiv: v1 [physics.ins-det] 9 Apr 2018
arxiv:1804.02889v1 [physics.ins-det] 9 Apr 2018 Study of neutron shielding collimators for curved beamlines at the European Spallation Source 1. Introduction V. Santoro 1,2, D. D. DiJulio 1,2, S. Ansell
More informationEUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH. Letter of Intent to the ISOLDE and Neutron Time-of-Flight Committee
EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH Letter of Intent to the ISOLDE and Neutron Time-of-Flight Committee Measurement of the 235 U(n, f) cross section relative to the H(n, n)h reaction up to 1 GeV:
More informationThe Compton Effect. Martha Buckley MIT Department of Physics, Cambridge, MA (Dated: November 26, 2002)
The Compton Effect Martha Buckley MIT Department of Physics, Cambridge, MA 02139 marthab@mit.edu (Dated: November 26, 2002) We measured the angular dependence of the energies of 661.6 kev photons scattered
More informationThe EDM Polarimeter Development at COSY-Jülich
Noname manuscript No. (will be inserted by the editor) The EDM Polarimeter Development at COSY-Jülich Fabian Müller for the JEDI Collaboration Received: date / Accepted: date Abstract The JEDI (Jülich
More informationH4IRRAD generic simulation results
1. Introduction H4IRRAD generic simulation results 1. 11. 2010 The radiation field present in LHC critical areas can cause radiation damage on non specifically designed electronic equipment due to Single
More informationGEANT4 simulation of the testbeam set-up for the ALFA detector
GEANT4 simulation of the testbeam set-up for the detector V. Vorobel a and H. Stenzel b a Faculty of Mathematics and Physics, Charles University in Prague, Czech Republic b II. Physikalisches Institut,
More informationPrinciples of neutron TOF cross section measurements
Principles of neutron TOF cross section measurements J. Heyse, C. Paradela, P. Schillebeeckx EC JRC IRMM Standards for Nuclear Safety, Security and Safeguards (SN3S) H.I. Kim Korea Atomic Energy Research
More informationJoint Institute for Nuclear Research. Flerov Laboratory of Nuclear Reactions. University Center LABORATORY WORK
Joint Institute for Nuclear Research Flerov Laboratory of Nuclear Reactions University Center LABORATORY WORK TOF measurement of the charged particles using the MCP detector Supervisor: Dauren Aznabayev
More informationNeutron induced reactions & nuclear cosmo-chronology. chronology. A Mengoni IAEA Vienna/CERN, Geneva
Neutron induced reactions & nuclear cosmo-chronology chronology A Mengoni IAEA Vienna/CERN, Geneva Ages Cosmological way based on the Hubble time definition ( expansion age ) Astronomical way based on
More informationphysics/ Sep 1997
GLAS-PPE/97-6 28 August 1997 Department of Physics & Astronomy Experimental Particle Physics Group Kelvin Building, University of Glasgow, Glasgow, G12 8QQ, Scotland. Telephone: +44 - ()141 3398855 Fax:
More informationATLAS New Small Wheel Phase I Upgrade: Detector and Electronics Performance Analysis
ATLAS New Small Wheel Phase I Upgrade: Detector and Electronics Performance Analysis Dominique Trischuk, Alain Bellerive and George Iakovidis IPP CERN Summer Student Supervisor August 216 Abstract The
More informationScintillation efficiency measurement of Na recoils in NaI(Tl) below the DAMA/LIBRA energy threshold
Scintillation efficiency measurement of Na recoils in NaI(Tl) below the DAMA/LIBRA energy threshold Jingke Xu, Princeton (now @LLNL) Sept 24, 2015 2015 LowECal Workshop, Chicago, IL Outline 1. Overview
More informationRelativistic Electrons
Relativistic Electrons Physics 300 1 Introduction In this experiment you will make independent measurements of the momentum and kinetic energy of electrons emitted from a β source. You will use these data
More informationGeometry Survey of the Time-of-Flight Neutron-Elastic Scattering (Antonella) Experiment
Geometry Survey of the Time-of-Flight Neutron-Elastic Scattering (Antonella) Experiment Babatunde O Sheg Oshinowo a and Federico Izraelevitch a, b a Fermi National Accelerator Laboratory (Fermilab), Batavia,
More informationNuclear AstroPhysics at ELI-NP: preliminary experiments with ELISSA detector. Giovanni Luca Guardo
Nuclear AstroPhysics at ELI-NP: preliminary experiments with ELISSA detector Giovanni Luca Guardo ELI-NP facility For the first time, a very high spectral density (10 4 γ/s/ev), brilliant γ beam,
More informationInformation about the T9 beam line and experimental facilities
Information about the T9 beam line and experimental facilities The incoming proton beam from the PS accelerator impinges on the North target and thus produces the particles for the T9 beam line. The collisions
More informationThis paper should be understood as an extended version of a talk given at the
This paper should be understood as an extended version of a talk given at the Abstract: 1 st JINA workshop at Gull Lake, 2002. Recent experimental developments at LANL (Los Alamos, NM, USA) and CERN (Geneva,
More informationGAMMA DETECTORS FOR High energy Inelastic Neutron Scattering. E.M. Schooneveld
GAMMA DETECTORS FOR High energy Inelastic Neutron Scattering E.M. Schooneveld Gamma detectors for HINS Collaboration: University of Rome Tor Vergata: - C. Andreani, S. Imberti, A. Pietropaolo, R. Senesi
More informationSpecial SLS Symposium on Detectors
Special SLS Symposium on Detectors Tuesday, December 12, 2017 9:30 to 12:15, WBGB/019 09:30 - What are hybrid pixel detectors? - An introduction with focus on single photon counting detectors Erik Fröjdh
More informationBEAM BEAM. cathode anode cathode
High-rate axial-field ioniza2on chamber for par2cle iden2fica2on of radioac2ve beams, J. Vadas, Varinderjit Singh, G. Visser, A. Alexander, J. Huston, B.B. Wiggins, A. Chbihi, M. Famiano, M. Bischak To
More informationGeant4 simulation of SOI microdosimetry for radiation protection in space and aviation environments
Geant4 simulation of SOI microdosimetry for radiation protection in space and aviation environments Dale A. Prokopovich,2, Mark I. Reinhard, Iwan M. Cornelius 3 and Anatoly B. Rosenfeld 2 Australian Nuclear
More informationRecent Activities on Neutron Calibration Fields at FRS of JAERI
Recent Activities on Neutron Calibration Fields at FRS of JAERI Michio Yoshizawa, Yoshihiko Tanimura, Jun Saegusa and Makoto Yoshida Department of Health Physics, Japan Atomic Energy Research Institute
More informationTracking properties of the ATLAS Transition Radiation Tracker (TRT)
2 racking properties of the ALAS ransition Radiation racker (R) 3 4 5 6 D V Krasnopevtsev on behalf of ALAS R collaboration National Research Nuclear University MEPhI (Moscow Engineering Physics Institute),
More informationA new detector for neutron beam monitoring
A new detector for neutron beam monitoring European Organization for Nuclear Research (CERN), Geneva, Switzerland in collaboration with Commissariat à l Energie Atomique (CEA), Saclay, France, Instituto
More informationNeutron capture and fission reactions on. sections, -ratios and prompt -ray emission from fission. 1 Introduction and Motivation
EPJ Web of Conferences 42, 01002 (2013) DOI: 10.1051/ epjconf/ 20134201002 C Owned by the authors, published by EDP Sciences, 2013 Neutron capture and fission reactions on 235 U : cross sections, -ratios
More informationAGATA preamplifier performance on large signals from a 241 Am+Be source. F. Zocca, A. Pullia, D. Bazzacco, G. Pascovici
AGATA preamplifier performance on large signals from a 241 Am+Be source F. Zocca, A. Pullia, D. Bazzacco, G. Pascovici AGATA Week - LNL (PD), Italy, 12-15 November 2007 Outline Recalls : Fast reset device
More informationFinal report on DOE project number DE-FG07-99ID High Pressure Xenon Gamma-Ray Spectrometers for Field Use
Final report on DOE project number DE-FG07-99ID13772 High Pressure Xenon Gamma-Ray Spectrometers for Field Use Principle Investigator: Glenn K. Knoll Co-investigator: David K. Wehe, Zhong He, University
More informationSolid state silicon + 6 LiF thermal neutron detectors: GEANT4 simulations versus real data
Solid state silicon + 6 LiF thermal neutron detectors: GEANT4 simulations versus real data P. Finocchiaro 1, S. Lo Meo 1,2, S. Caruso 3, L. Cosentino 1 1) INFN Laboratori Nazionali del Sud, Catania, Italy
More informationA gas-filled calorimeter for high intensity beam environments
Available online at www.sciencedirect.com Physics Procedia 37 (212 ) 364 371 TIPP 211 - Technology and Instrumentation in Particle Physics 211 A gas-filled calorimeter for high intensity beam environments
More informationNeutron Induced Nuclear Counter Effect in Hamamatsu Silicon APDs and PIN Diodes
Neutron Induced Nuclear Counter Effect in Hamamatsu Silicon APDs and PIN Diodes Rihua Mao, Liyuan Zhang, Ren-yuan Zhu California Institute of Technology Introduction Because of its immunity to magnetic
More informationNeutron capture cross sections of 69,71 Ga at n TOF EAR1
EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH Proposal to the ISOLDE and Neutron Time-of-Flight Committee Neutron capture cross sections of 69,71 Ga at n TOF EAR1 May 31, 2016 K. Göbel 1, S. Fiebiger 1, D.
More informationORTEC. SLP Series Silicon Lithium-Drifted Planar Low-Energy X Ray Detector Product Configuration Guide
ORTEC SLP Series Silicon Lithium-Drifted Planar Low-Energy Ray Detector For x-ray spectroscopy with a nuclear accelerator, radioactive source, or x-ray tube. Premium performance spectroscopy from 1 kev
More informationDetermination of the boron content in polyethylene samples using the reactor Orphée
Determination of the boron content in polyethylene samples using the reactor Orphée F. Gunsing, A. Menelle CEA Saclay, F-91191 Gif-sur-Yvette, France O. Aberle European Organization for Nuclear Research
More informationRelativistic Behavior Detection through Electron Acceleration
Relativistic Behavior Detection through Electron Acceleration Henry Shackleton MIT Department of Physics (Dated: April 28, 2017) Classical and relativistic mechanics differ in their predictions of how
More informationEstec final presentation days 2018
Estec final presentation days 2018 Background VESPER Facility Conclusion & Outlook Jovian environment Radiation Effects VESPER history VESPER status Overview Experimental Results External Campaign Summary
More informationA Study of Neutron Shielding Methods for. Experimental Astrophysics
A Study of Neutron Shielding Methods for Experimental Astrophysics Ryan Soklaski, Mallory Smith 2009 NSF/REU Program Physics Department, University of Notre Dame Advisors: Dr. Ed Stech, Dr. Michael Wiescher
More informationBolometry. H. Kroegler Assciazione Euratom-ENEA sulla Fusione, Frascati (Italy)
Bolometry H. Kroegler Assciazione Euratom-ENEA sulla Fusione, Frascati (Italy) Revised May 28, 2002 1. Radiated power Time and space resolved measurements of the total plasma radiation can be done by means
More informationEEE4106Z Radiation Interactions & Detection
EEE4106Z Radiation Interactions & Detection 2. Radiation Detection Dr. Steve Peterson 5.14 RW James Department of Physics University of Cape Town steve.peterson@uct.ac.za May 06, 2015 EEE4106Z :: Radiation
More informationA Measurement of Monoenergetic Neutrons from 9 Be(p,n) 9 B
Journal of the Korean Physical Society, Vol. 32, No. 4, April 1998, pp. 462 467 A Measurement of Monoenergetic Neutrons from 9 Be(p,n) 9 B J. H. Kim, H. Bhang, J. H. Ha, J. C. Kim, M. J. Kim, Y. D. Kim
More informationGaN for use in harsh radiation environments
4 th RD50 - Workshop on radiation hard semiconductor devices for very high luminosity colliders GaN for use in harsh radiation environments a (W Cunningham a, J Grant a, M Rahman a, E Gaubas b, J Vaitkus
More informationSCINTILLATION 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 informationMass Determination of Rn and Hg isotopes using MASHA
Mass Determination of Rn and Hg isotopes using MASHA Alfred M. Sehone Lumkile Msebi Oleg Lishyk Stanislav Stanishevski Yuliya Brechko Supervisor Krupa Lubosh Flerov Laboratory of Nuclear reactions, JINR,
More informationCHARACTERISTICS OF LIGHT CHARGED PARTICLE EMISSION IN THE TERNARY FISSION OF 250 CF AND 252 CF AT DIFFERENT EXCITATION ENERGIES
CHARACTERISTICS OF LIGHT CHARGED PARTICLE EMISSION IN THE TERNARY FISSION OF 25 CF AND 252 CF AT DIFFERENT EXCITATION ENERGIES S. VERMOTE AND C. WAGEMANS Department of Physics and Astronomy, University
More informationarxiv: v1 [physics.ins-det] 9 Jan 2019
Improvement of charge resolution for radioactive heavy ions at relativistic energies using a hybrid detector system J.W. Zhao a, B.H. Sun a,b,c,, L.C. He a, G.S. Li a, W.J. Lin a, C.Y. Liu a, Z. Liu d,
More informationThin Calorimetry for Cosmic-Ray Studies Outside the Earth s Atmosphere. 1 Introduction
Thin Calorimetry for Cosmic-Ray Studies Outside the Earth s Atmosphere Richard WIGMANS Department of Physics, Texas Tech University, Lubbock TX 79409-1051, USA (wigmans@ttu.edu) Abstract Cosmic ray experiments
More informationMEASUREMENT OF TEMPORAL RESOLUTION AND DETECTION EFFICIENCY OF X-RAY STREAK CAMERA BY SINGLE PHOTON IMAGES
Proceedings of IBIC212, Tsukuba, Japan MEASUREMENT OF TEMPORAL RESOLUTION AND DETECTION EFFICIENCY OF X-RAY STREAK CAMERA BY SINGLE PHOTON IMAGES A. Mochihashi, M. Masaki, S. Takano, K. Tamura, H. Ohkuma,
More informationPoS(TIPP2014)088. Diamonds for beam instrumentation. Erich Griesmayer 1. Pavel Kavrigin
1 CIVIDEC Instrumentation GmbH Schottengasse 3A/1/41, A-1010 Vienna, Austria E-mail: erich.griesmayer@cividec.at Pavel Kavrigin CIVIDEC Instrumentation GmbH Schottengasse 3A/1/41, A-1010 Vienna, Austria
More informationAlpha-particle Stopping Powers in Air and Argon
Alpha-particle Stopping Powers in Air and Argon Mohammad QH 1* and Maghdid HA 2 1 Department of Physics, College of Science, Raparin University, Sulaimanyah, Iraqi Kurdistan, Iraq 2 Department of Physics,
More informationNeutron Transport Calculations Using Monte-Carlo Methods. Sean Lourette Fairport High School Advisor: Christian Stoeckl
Neutron Transport Calculations Using Monte-Carlo Methods Sean Lourette Fairport High School Advisor: Christian Stoeckl Laboratory for Laser Energetics University of Rochester Summer High School Research
More informationTotal kinetic energy and fragment mass distributions from fission of Th-232 and U-233
Total kinetic energy and fragment mass distributions from fission of Th-232 and U-233 Daniel Higgins 1,2*, Uwe Greife 1, Shea Mosby 2, and Fredrik Tovesson 2 1 Colorado School of Mines, Physics Department,
More informationNeutron transmission and capture measurements for 241 Am at GELINA
Neutron transmission and capture measurements for 241 Am at GELINA C. Lampoudis, S. Kopecky, A. Plompen, C. Sage P. Schillebeeckx, R. Wynants, O. Bouland, G. Noguere and F. Gunsing 3 rd International Workshop
More informationNew measurement of the 62 Ni(n,γ) cross-section with n_tof at CERN
New measurement of the 62 Ni(n,) cross-section with n_tof at CERN VERA-Laboratory, Faculty of Physics, University of Vienna E. Berthoumieux, M. Calviani, D. Cano-Ott, N. Colonna, I. Dillmann, C. Domingo-
More informationExamples for experiments that can be done at the T9 beam line
Examples for experiments that can be done at the T9 beam line Example 1: Use muon tomography to look for hidden chambers in pyramids (2016 winning proposal, Pyramid hunters) You may know computer tomography
More informationJoe Parker for the Cosmic Ray γ Group Kyoto University
Joe Parker for the Cosmic Ray γ Group Kyoto University Cosmic Ray Group NID Project Team @ 京大 K. Hattori, C. Ida, S. Iwaki, S. Kabuki, H. Kubo, S. Kurosawa, K. Miuchi, H. Nishimura, J. D. Parker, T. Sawano,
More informationHigh-energy neutron-induced fission cross sections in
EFNUDAT Workshop, May 2010 (Paris, France) High-energy neutron-induced fission cross sections in Pb and nat 209 Bi D. Tarrío1,*, L. Tassan Got2, L. Audouin2, I. Durán1, and C. Paradela1 on behalf of the
More informationJournal of Radiation Protection and Research
1) JONG WOON KIM AND YOUNG-OUK LEE: DETAILED ANALYSIS OF THE KAERI ntof FACILITY Journal of Radiation Protection and Research pissn 2508-1888 eissn 2466-2461 http://dx.doi.org/10.14407/jrpr.2016.41.2.141
More informationLos Alamos National Laboratory Facility Review
Los Alamos National Laboratory Facility Review Ron Nelson P-27 & LANSCE Neutron Data Needs & Capabilities for Applications LBNL 27 May 2015 Los Alamos Neutron Science Center User Facilities Los Alamos
More informationRadioactivity and Ionizing Radiation
Radioactivity and Ionizing Radiation QuarkNet summer workshop June 24-28, 2013 1 Recent History Most natural phenomena can be explained by a small number of simple rules. You can determine what these rules
More informationExperiments on deflection of charged particles using silicon crystals at. Proton Synchrotron (KEK(
Experiments on deflection of charged particles using silicon crystals at REFER ring (Hiroshima( University) and Proton Synchrotron (KEK( KEK) S. Sawada KEK High Energy Accelerator Research Organization
More informationIFIN-HH participation at the n_tof CERN COLLABORATION (I)
IFIN-HH participation at the n_tof CERN COLLABORATION (I) THE n_tof FACILITY CERN ENERGY DISTRIBUTION OF NEUTRONS Objectives of the activity at n_tof Experimental Set-Up -Pb Target Detection systems:
More informationTHE USE OF GE DETECTORS FOR (N,XN) CROSS-SECTION MEASUREMENTS AT INTENSE AND LOW FREQUENCY PULSED NEUTRON BEAMS. Abstract
THE USE OF GE DETECTORS FOR (N,XN) CROSS-SECTION MEASUREMENTS AT INTENSE AND LOW FREQUENCY PULSED NEUTRON BEAMS Strahinja Lukic, 1 Paule Baumann, 1 Catalin Borcea, 2 Erwin Jericha, 3 Stevan Jokic, 4 Aleksandra
More informationMeasurement of prompt fission γ-ray spectra in fast neutroninduced
Available online at www.sciencedirect.com Physics Procedia 31 (2012 ) 13 20 GAMMA-1 Emission of Prompt Gamma-Rays in Fission and Related Topics Measurement of prompt fission γ-ray spectra in fast neutroninduced
More informationMeasurement of the Proton Beam Polarization with Ultra Thin Carbon Targets at RHIC
1of23 Measurement of the Proton Beam Polarization with Ultra Thin Carbon Targets at RHIC Brookhaven National Laboratory for the RHIC Polarimetry Group Sep 12, 2013 Relativistic Heavy Ion Collider world
More informationAlpha-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 informationDETECTORS. I. Charged Particle Detectors
DETECTORS I. Charged Particle Detectors A. Scintillators B. Gas Detectors 1. Ionization Chambers 2. Proportional Counters 3. Avalanche detectors 4. Geiger-Muller counters 5. Spark detectors C. Solid State
More informationExperimental study of nonlinear laser-beam Thomson scattering
Experimental study of nonlinear laser-beam Thomson scattering T. Kumita, Y. Kamiya, T. Hirose Department of Physics, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji, Tokyo 192-0397, Japan I.
More informationApplication Note. The Continuous Air Monitoring (CAM) PIPS Detector Properties and Applications
Application Note The Continuous Air Monitoring (CAM) PIPS Detector Properties and Applications Introduction The increasing demand for safety in nuclear installations calls for continuous survey of airborne
More informationPráctica de laboratorio número 6: Non-Rutherford scattering near the MeV 12 C(p,p) 12 C resonance
Práctica de laboratorio número 6: Non-Rutherford scattering near the 1.734 MeV 12 C(p,p) 12 C resonance 1) Scope In this experiment, the yield of protons backscattered from a thin gold foil deposited over
More informationCurrent studies of neutron induced reactions regard essentially two mass regions, identified in the chart of nuclides: isotopes in the region from Fe
The talk gives an overview of the current reseach activity with neutron beams for fundamental and applied Nuclear Physics. In particular, it presents the status and perspectives of neutron studies in the
More informationEXPERIMENTAL STUDY OF NEUTRON FIELDS PRODUCED IN PROTON REACTIONS WITH HEAVY TARGETS. Nuclear Physics Institute AS CR, Rez Czech Republic
EXPERIMENTAL STUDY OF NEUTRON FIELDS PRODUCED IN PROTON REACTIONS WITH HEAVY TARGETS A. Kugler, V. Wagner Nuclear Physics Institute AS CR, 25068 Rez Czech Republic I. Introduction One of important aspects
More informationMeasurement of the 62,63. Ni(n,γ) cross section at n_tof/cern
Measurement of the 62,63 Ni(n,γ) cross section at n_tof/cern University of Vienna 01. September 2011 ERAWAST II, Zürich Nucleosynthesis of heavy elements BB fusion neutrons Abundance (Si=10 6 ) Fe Mass
More informationIr TES electron-phonon thermal conductance and single photon detection
Ir TES electron-phonon thermal conductance and single photon detection D. Bagliani, F. Gatti, M. Ribeiro Gomes, L. Parodi, L. Ferrari and R. Valle I.N.F.N. of Genoa, Via Dodecaneso, 33, 16146 Genova, Italy
More informationHands on LUNA: Detector Simulations with Geant4
: Detector Simulations with Geant4 Gran Sasso Science Institute E-mail: axel.boeltzig@gssi.infn.it Andreas Best Laboratori Nazionali del Gran Sasso E-mail: andreas.best@lngs.infn.it For the evaluation
More informationCVD Diamond History Introduction to DDL Properties of Diamond DDL Proprietary Contact Technology Detector Applications BDD Sensors
Diamond Detectors CVD Diamond History Introduction to DDL Properties of Diamond DDL Proprietary Contact Technology Detector Applications BDD Sensors Kevin Oliver CEO Alex Brown Sales & Marketing 20 May,
More informationP-Carbon CNI Polarimeter Operation Experience
P-Carbon CNI Polarimeter Operation Experience, A. Poblaguev, D. Steski, K. Yip, A. Zelenski Brookhaven National Laboratory, Upton, NY 11973, USA E-mail: huanghai@bnl.gov The p-carbon polarimeter working
More informationPoS(Baldin ISHEPP XXII)065
Future usage of quasi-infinite depleted uranium target (BURAN) for benchmark studies 1, M. Suchopár for collaboration Energy plus Transmutation of RAW Nuclear Physics Institute of the ASCR, v. v. i. Řež
More informationMethod of active correlations in the experiment 249 Cf+ 48 Ca n
Method of active correlations in the experiment 249 Cf+ 48 Ca 297 118 +3n Yu.S.Tsyganov, A.M.Sukhov, A.N.Polyakov Abstract Two decay chains originated from the even-even isotope 294 118 produced in the
More informationSTATUS AND PERSPECTIVES OF THE N_TOF FACILITY AT CERN. Marco Calviani (CERN) and the n_tof CERN for the n_tof Collaboration
STATUS AND PERSPECTIVES OF THE N_TOF FACILITY AT CERN Marco Calviani (CERN) and the n_tof Team @ CERN for the n_tof Collaboration n_tof history Feasibility New Target construction Commissioning May 2009
More information