Nuclear Physics at OCL: From CACTUS to OSCAR
|
|
- Rosalind Fields
- 5 years ago
- Views:
Transcription
1 Nuclear Physics at OCL: From CACTUS to OSCAR Sunniva Siem University of Oslo ENSAF mee)ng Sevilla oktober 2016
2 Outline of this talk Ø Our experimental setup in Oslo Ø The Oslo method - > Level densi)es and gamma- strength func)ons Ø Ac)nide program Ø Low energy enhancement Ø Inverse kinema)cs experiments at ISOLDE, CERN Ø New detector array OSCAR
3 What we can measure in Oslo: Level densities gamma strength functions Which are: Fundamental nuclear properties -> information on pairing, shell structure, temperature, collective effects inputs in cross section calculations, needed for reactor simulations and nucleosynthesis of elements in stars. Can help improve models of level densities and gamma strength functions -> needed for exotic nuclei which can t be measured Ø Not all cross sections can be measured directly Ø Simulations not better than the input data
4 Experimental OCL Beam: p, d, 3He, α with energies up to MeV CACTUS: 28 5 x 5 NaI(Tl), ε Eγ=1.33 MeV to be replaced by OSCAR! SiRi: 64 Si ΔE-E particle telescopes, Δθ 2o PPAC fission detector called NIFF
5 Ac#nide targets PPAC fission fragment detector Ø ejec)le ff γ coincidences Ø fission veto collabora)on Oslo - Debrecen ac)nide targets available: Ø 232Th Ø 233U 235U 238U Ø 237Np Ø 239Pu 240Pu 242Pu 244Pu collabora)on Oslo - Livermore
6 NaI(Tl) Par)cle iden)fica)on, Typical E- E bananas: γ α Si ΔE-E telescope 3 He 45 o Target stable nucleus Par)cle gamma coincidences
7 S n 232 Th(d,p)
8 From the primary gamma spectra: extraction of level densities and γ strength functions P( E, E ) ρ( E ) T ( E ) i γ f γ Assuming dominance of dipole radiation (E1 and M1)
9 Nuclear data for reactor physics: strength functions in the actinide region 232 Th(d,p) 233 Th ) -3 Radiative strength function (MeV -6-7 Present experiment (γ,abs) resonance data f(e1) from (n,γ) f(m1) from (n,γ) 232Th, Gurevich et al NP A273, 1976, p326 Scissors mode? -8 M. Gu_ormsen et al PRL 9, (2012) γ-ray energy E (MeV) γ Thanks to Livermore for providing the target!
10 232 Th(d,p) S n Region A Region B Test of Brink- Axel: Two sta)s)cal independent data sets ) -3 RSF (MeV E = MeV E = MeV E = MeV γ-ray energy E (MeV) γ
11 Low energy enhancement of the strength function A.Voinov et al. Phys.Rev.LeA. 93, (2004) 11
12 The new 56 Fe data taken with LaBr3 detectors ) -3 γ-ray strength function (MeV Fe( He,αγ), Voinov et al. Fe(p,p γ), NaI:Tl Fe(p,p γ), LaBr :Ce 3 Co(γ,n), Alvarez et al γ-ray energy E (MeV) γ CACTUS: 6 LaBr 3 (Ce), 3.5 x 8 22 NaI(Tl), 5 x 5 Experimentally shown to be dominantly dipole radia)on (A.C. Larsen et al., PRL 111, (2013)
13 Some theore)cal efforts: E1 nature? E. Litvinova and N. Belov, PRC 88, (R) (2013). QRPA calcula)ons. M1 nature? R. Schwengner, S. Frauendorf, and A. C. Larsen, PRL 111, (2013). Shell model calc.
14 How does the enhancement affect neutron capture cross sections? Strength function f E Mo 97Mo 97Mo 96Mo 96Mo 95Mo 94Mo 93Mo Hybrid E [MeV] Assuming the strength functions of Mo isotopes all have the same energy trend With /without enhancement A.C. Larsen and S. Goriely, Phys. Rev. C 82, (20)
15 In Oslo: stable nuclei NaI(Tl) Exotic beams, using inverse kinematics γ α Si ΔE-E telescope γ α 3 He 45 o Target stable nucleus p or 3 He target Experiment in November at Hie-Isolde to measure the gamma strength function in nutron rich Ni isotopes with two independent methods: Oslo method and Ratio Method Well established for normal kinematics, performed a proof of principle experiment in inverse kinematics at ithemba last year -> it works!
16 INVESTIGATING THE LOW ENERGY ENHANCEMENT IN THE GAMMA STRENGTH FUNCTION OF 87Kr IN INVERSE KINEMATICS Doppler corrected energy clover : Excitation energy Excita)on energy Excitation energy [kev] Preliminary 2 1 V. W. Ingeberg master thesis Clover energy [kev] gamma energy
17 AFRODITE 8 Clover detectors, segmented in four 50x70 mm HPGe chrystals covering 11% og 4pi 2 LaBr3 detectors, 3.5x8 segmented Si charged par)cle detectors: 300um (500um) + 1mm back detector
18 ) -3 γ-ray strength function (MeV 6 LaBr (Ce), Polyethylene 3 CLOVER, Polyethylene LaBr (Ce), Polystyrene 3 CLOVER, Polystyrene 86 Kr(γ,γ'), R. Schwengner, et. al. 86 Kr(γ,n), R. Raut, et. al. 7 Preliminary Kr γ-ray energy E (MeV) γ V. W. Ingeberg master thesis
19 Synergies with Large scale facilities We are bringing 6 LaBr3 detectors from Oslo for the experiment at HIE-ISOLDE Beamtime: 7-14 November Spokesperson: S.Siem + M.Wiedeking. Data will be analyzed by both Oslo and ithemba. In June we tested both digital and analog electronics for reading the signals into the miniball data acquisition system. Also tested the mechanical holding structure for the LaBr3 detectors. Gry, Frank and Tuva at ISOLDE, CERN
20 NEW INFRASTRUKTUR OSCAR: Replacing the current NaI(Tl) CACTUS detectors with LaBr3 detectors Oslo Scin)llator Array Ø 23 MNOK (ca 2.56 M Euro) Ø 30 Large volume (3,5 x 8) LaBr3 detectors Ø Better energy resolution Ø Better timing Ø Possibilities for new types of experiments Ø We welcome new collaborations Ø First experiment with full array in 2017
21 Example of difference in energy resolution: counts Target: natural Si Gate on 8904-keV peak in Ex (FWHM 0 kev) Blue: all 22 NaI Red: all 6 LaBr kev kev kev kev pxallnai Entries Mean RMS Underflow 0 Overflow 20 Integral La (from LaBr3 itself) kev kev kev Eγ [kev]
22 V.Ingeberg and F.Zeiser 22
23 New detector frame for OSCAR 23
24 24
25 h_ps://www- nds.iaea.org/crp- photonuclear/ 25
26 Current EU project under EURATOM: Univ. of Oslo, OCL is a partner in: CHANDA solving CHAllenges in Nuclear DAta Objectives: - To provide the nuclear data required for the safe and sustainable operation, and development, of existing and new reactors and nuclear fuel cycle facilities, - To prepare solutions for the challenges risen by the nuclear data measurements needed by nuclear systems, like the data for highly radioactive, short lived or rare materials, - To prepare tools that solve the challenges of quantifying and certifying the accuracy of the results of simulations based on available nuclear data and models (uncertainties), - To identify and promote synergies with other nuclear data applications.
27 Advantages and challenges with a small scale facility: Ø Oslo Cyclotron Laboratory offers excellent hands-on training for masters and PhD students. Giving them the confidence and skills needed to be useful at experiments at larger facilities like RIKEN, ISOLDE, CERN and GANIL. Ø Several master and PhD student from other Universities get data from OCL and some spend a semester in Oslo (this semester 1 master + 1 PhD student from Turkey and 1 PhD student from South Africa) Ø We can get beamtime within weeks/months when needed for our PhD and master students. Compared to waiting 3 years from submitting a proposal for HIE-ISOLDE. Ø Can have a semi permanent experimental setup with alot of time for testing/debugging. Students can take part in developing/building new equipment like the PPAC. Ø Harder to get Transnational Access funding for smaller facilities? Ø Increasing preasure from the University to find external funding for running costs.
28 6 th Workshop on Level Density and Gamma Strength Oslo, May 8 12 May 2017 Welcome to Oslo!
29 Collaborators F.L.B. Garrote, F. Giacoppo, A.Görgen, M.Guttormsen, T.W. Hagen, V.W.Ingeberg, M.Klintfjord, A.C.Larsen, H.T.Nyhus, J.Rekstad, T.Renstrøm, S.J.Rose, E. Sahin, S.Siem, T.Tornyi, G.M.Tveten, F.Zeiser, University of Oslo, Norway N.Blasi,A.Bracco, F.Camera, S.Leoni,B.Million, Milano, Italy L.Bernstein, D.Bleuel, Lawrence Livermore NL, USA M.Wiedeking, P.Jones, itemba labs South Africa A.Voinov, Ohio University, USA S.Goriely, Brussel, Belgium J.Wilson, M.Lebois, IPN Orsay, France F. Gunsing, CEA Saclay, France M. Krticka, Charles University, Prague R. Firestone, Berkeley na)onal Lab A.Spyrou, G.Perdikakis, S.Liddick, A.Brown, NSCL/MSU, USA R. Schwegner, HZDR Dresden, Germany H. Utsunomiya, Konan University, Japan
30 Thank you;- )
31 Future outlook and challenges: Ø What is the electromagnetic character of the low energy enhancement? Ø Impact of this enhancement, scissors mode and pygmy resonances on large network calculations of formation of elements in stars. Ø Is the enhancement also present in neutron rich nuclei? Ø Test of Oslo method in inverse kinematics: Experiment at ithemba Labs with stable 86 Kr beam, analysis ongoing Ø Experiment in November to study neutron rich nuclei Ni at HIE-ISOLDE, CERN Ø Beta-Oslo method experiments MSU
32 Energy resolution LaBr3 vs NaI 8keV 11keV 42 kev 118 kev
Enhanced low-energy γ-decay probability implications for r-process (n,γ) reaction rates
Enhanced low-energy γ-decay probability implications for r-process (n,γ) reaction rates Ann-Cecilie Larsen, Dep. of Physics, University of Oslo ERC StG 8 - gresonant 14th International Conference on Nuclear
More informationMeasurement of γ Strength Function and Level Density of 138. La at oooooo
Measurement of γ Strength Function and Level Density of 138 La at oooooo Vincent Kheswa PhD Student ithemba LABS, Somerset West, South Africa 27 May 2013 Outline» Introduction» Experimental Setup» Preliminary
More informationGamma-ray strength functions obtained with the Oslo method
Gamma-ray strength functions obtained with the Oslo method Ann-Cecilie Larsen July 8, 2008 DEPARTMENT OF PHYSICS UNIVERSITY OF OSLO Collaborators Oslo: A. Bürger, M. Guttormsen, S. Messelt, F. Ingebretsen,
More informationInvestigation of Pygmy Dipole Resonance in neutron rich exotic nuclei
Investigation of Pygmy Dipole Resonance in neutron rich exotic nuclei R.Avigo 1,2, O.Wieland 1, A.Bracco 1,2, F.Camera 1,2 on behalf of the AGATA and DALI2 collaborations 1 INFN, sezione di Milano 2 Università
More informationCredit: NASA/CXC/M.Weiss
Credit: NASA/CXC/M.Weiss Hydrogen and helium (Li,B, Be) from the Big-Bang nucleosynthesis, everything else from stellar processes [e.g. C. Iliadis, Nuclear Physics of Stars, Wiley-VCH Verlag, Weinheim
More informationFirst evidence of low energy enhancement in Ge isotopes
EPJ Web of Conferences 93, 04003 (2015) DOI:.51/ epjconf/ 20159304003 C Owned by the authors, published by EDP Sciences, 2015 First evidence of low energy enhancement in isotopes T. Renstrøm 1,a, H.-T.
More informationMeasuring Neutron Capture Cross Sections on s-process Radioactive Nuclei
Measuring Neutron Capture Cross Sections on s-process Radioactive Nuclei 5th Workshop on Nuclear Level Density and Gamma Strength Oslo, May 18-22, 2015 LLNL-PRES-670315 LLNL-PRES-XXXXXX This work was performed
More informationarxiv:nucl-ex/ v1 27 May 2002
1 MEASUREMENTS OF NUCLEAR LEVEL DENSITIES AND γ-ray STRENGTH FUNCTIONS AND THEIR INTERPRETATIONS M. Guttormsen, M. Hjorth-Jensen, J. Rekstad and S. Siem Department of Physics, University of Oslo, Box 1048
More informationThe statistical properties of 92 Mo and implications for the p-process
The statistical properties of 9 Mo and implications for the p-process G.M. Tveten g.m.tveten@fys.uio.no Department of Physics University of Oslo INPC01 - G. M. Tveten 1 G9.0+1.8 Sites of production? INPC01
More informationOslo, May , 2015
Centre d Etudes Nucléaires de Bordeaux-Gradignan Groupe Aval du Cycle et Energie Nucléaire CEA-Cadarache Q. Ducasse1,6), B. Jurado1), M. Aiche1), L. Mathieu1), T.Tornyi2), A. Goergen2), J. N. Wilson3),
More informationNeutron-induced cross sections of actinides via de surrogate reaction method
Neutron-induced cross sections of actinides via de surrogate reaction method B. Jurado 1), Q. Ducasse 1), M. Aiche 1), L. Mathieu 1), T.Tornyi 2), A. Goergen 2), J. N. Wilson 3), G. Boutoux 5), I. Companis
More informationACTAR TPC: an active target and time projection chamber for nuclear physics. 17/09/2015 T. Roger COMEX 5 1
ACTAR TPC: an active target and time projection chamber for nuclear physics 17/09/2015 T. Roger COMEX 5 1 Nuclear structure through transfer reactions Past: structure of nuclei close to stability in direct
More informationStrengths and limitations of the surrogate reaction method to access neutron-induced cross sections of actinides
Strengths and limitations of the surrogate reaction method to access neutron-induced cross sections of actinides P. Marini, Q. Ducasse, B. Jurado, M. Aiche, L. Mathieu, G. Barreau, S. Czajkowski, I. Tsekhanovic
More informationRelativistic Radioactive Beams as a Tool for Nuclear Astrophysics
Relativistic Radioactive Beams as a Tool for Nuclear Astrophysics Thomas Aumann December 11 th 2013 27 th Texas Symposium on Relativistic Astrophysics Dallas, Texas Supported by the BMBF under contract
More informationACTAR TPC: an active target and time projection chamber for nuclear physics
ACTAR TPC: an active target and time projection chamber for nuclear physics 1 Nuclear structure through transfer reactions Past: structure of nuclei close to stability in direct kinematics, use of magnetic
More informationGamma-ray strength functions and a new dimension of partial GDR cross section measurements. Hiroaki Utsunomiya
6 th Workshop on Nuclear Level Density and Gamma strength Oslo, May 8-12, 2017 Gamma-ray strength functions and a new dimension of partial GDR cross section measurements Hiroaki Utsunomiya Department of
More informationCoordinated Research Project on Updating the photonuclear Data Library and generating a Reference Database for Photon Strength Functions
Coordinated Research Project on Updating the photonuclear Data Library and generating a Reference Database for Photon Strength Functions Paraskevi (Vivian) Dimitriou Data Development Unit, Nuclear Data
More informationElectromagnetic Dipole Strength distribution in 124,128,134 Xe below the neutron separation energy
Electromagnetic Dipole Strength distribution in 124,128,134 Xe below the neutron separation energy Ralph Massarczyk Helmholtz-Zentrum Dresden-Rossendorf 29.05.2013 R.Massarczyk (HZDR) dipole strength in
More informationInvestigation of radiative proton-capture reactions using high-resolution g-ray spectroscopy
Investigation of radiative proton-capture reactions using high-resolution g-ray spectroscopy P. Scholz, F. Heim, J. Mayer, M. Spieker, and A. Zilges Institute for Nuclear Physics, University of Cologne
More informationDipole Response of Exotic Nuclei and Symmetry Energy Experiments at the LAND R 3 B Setup
Dipole Response of Exotic Nuclei and Symmetry Energy Experiments at the LAND R 3 B Setup Dominic Rossi for the LAND collaboration GSI Helmholtzzentrum für Schwerionenforschung GmbH D 64291 Darmstadt, Germany
More informationInvestigation of the Pygmy Dipole Resonance in particle- coincidence experiments
Investigation of the Pygmy Dipole Resonance in particle- coincidence experiments V. Derya 1*, J. Endres 1, M. N. Harakeh 2,3, D. Savran 4,5, M. Spieker 1*, H. J. Wörtche 2, and A. Zilges 1 1 Institute
More informationSurrogate-reaction studies by the CENBG collaboration: status and perspectives
Surrogate-reaction studies by the CENBG collaboration: status and perspectives Beatriz Jurado, Centre d Etudes Nucleaires de Bordeaux-Gradignan (CENBG), France The CENBG collaboration M.Aiche, G. Barreau,
More informationTest of the Brink-Axel Hypothesis with Gamma Strength Functions from Forward Angle Inelastic Proton Scattering
Test of the Brink-Axel Hypothesis with Gamma Strength Functions from Forward Angle Inelastic Proton Scattering Peter von Neumann-Cosel Institut für Kernphysik, Technische Universität Darmstadt Gamma strength
More informationDecay properties of neutron-rich nuclei on the r-process path
Nuclear science frontier explored by ultra-high power lasers, Feb. 03 Osaka Decay properties of neutron-rich nuclei on the r-process path Shunji NISHIMURA ( RIKEN Nishina Center / NAOJ) Nuclear Parameters
More informationSURROGATE REACTIONS. An overview of papers by Jason Burke from LLNL
SURROGATE REACTIONS An overview of papers by Jason Burke from LLNL Compound Nuclear Reaction cross sections Cross sections for compound-nuclear reactions are required input for astrophysical models and
More informationNew Phenomena in Gamma-Ray Strength Functions
Text optional: Institutsname Prof. Dr. Hans Mustermann www.fzd.de Mitglied der Leibniz-Gemeinschaft Ronald Schwengner Institut für Strahlenphysik http://www.hzdr.de New Phenomena in Gamma-Ray Strength
More informationDetector Array for Low Intensity radiation. DALI and DALI2. S.Takeuchi, T.Motobayashi. Heavy Ion Nuclear Physics Laboratory, RIKEN
Detector Array for Low Intensity radiation DALI and DALI2 S.Takeuchi, T.Motobayashi Heavy Ion Nuclear Physics Laboratory, RIKEN H.Murakami, K.Demichi, H.Hasegawa, Y.Togano Department of Physics, Rikkyo
More informationMICROSCOPIC NATURE OF THE PHOTON STRENGTH FUNCTION: STABLE AND UNSTABLE Ni AND Sn ISOTOPES
MICROSCOPIC NATURE OF THE PHOTON STRENGTH FUNCTION: STABLE AND UNSTABLE Ni AND Sn ISOTOPES O. Achakovskiy 4, A. Avdeenkov 4, S. Goriely 2, S. Kamerdzhiev 1, S. Krewald 3, D. Voitenkov 4 1. Institute for
More informationInvestigation of the surrogate-reaction method via the simultaneous measurement of gamma-emission and fission probabilities
Investigation of the surrogate-reaction method via the simultaneous measurement of gamma-emission and fission probabilities B. Jurado, P. Marini, M. Aiche, S. Czajkowski, D. Denis-Petit, L. Mathieu, R.
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 informationThe two-step (and multiple-step) γ cascade method as a tool for studying γ-ray strength functions. Milan Krtička
The two-step (and multiple-step) γ cascade method as a tool for studying γ-ray strength functions Milan Krtička Outline The method of two-step γ-cascades following thermal neutron capture (setup at Rez
More informationDetermination of radiative strength functions
Determination of radiative strength functions and level density Andreas Schiller, Ohio U Motivation Discrete spectroscopy Continuous spectroscopy Energies of discrete [2 +, 3 -, etc.] levels Level density,
More informationThe project was supported by: Czech Scientific Foundation under Grant No S IAEA Coordinated Research Project F41032
Radiative strength functions in deformed nuclei ( 162,4 Dy, 168 Er) and population of K p =4 + isomeric state in 168 Er from resonance neutron capture Milan Krtička The project was supported by: Czech
More informationBeta decay for neutron capture Sean Liddick
Beta decay for neutron capture Sean Liddick 6 th Oslo Workshop on Strength and Level Density, May 8-12, 2017 Nuclear Physics Uncertainties for r-process: (n,γ) (n,γ) uncertainties Monte-Carlo variations
More informationβ-delayed neutron emission probability measurements at RIKEN RIBF
β-delayed neutron emission probability measurements at RIKEN RIBF G. G. Kiss RIKEN Nishina Center for Accelerator-Based Science Radioactive Isotope Physics Laboratory (in behalf of the BRIKEN collaboration)
More informationPhotofission of 238-U Nuclei
Photofission of 238-U Nuclei International Thorium Energy Conference - ThEC18, 29-31st of October 2018, Belgium İsmail Boztosun This research has been supported by TÜBİTAK with grant number 114F220 Motivations
More informationBeta decay for neutron capture
Beta decay for neutron capture Sean Liddick ICNT, June 7th, 2016 r-process calculations neutron star merger hot wind cold wind Abundance pattern is different for the different astrophysical scenarios.
More informationThree-step gamma cascades following the neutron capture in 161 Dy
Three-step gamma cascades following the neutron capture in 161 Dy F. Beèváø, T. Belgya, G. de France, M. Jentschel, U. Koester, J. Kroll, M. Krtièka, P. Mutti, R. Schwengner, G. Simpson, I. Tomandl, W.
More informationAddendum to the ISOLDE and Neutron Time-of-Flight Committee
` EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH Addendum to the ISOLDE and Neutron Time-of-Flight Committee IS530: Properties of low-lying intruder states in 34 Al and 34 Si sequentially populated in beta-decay
More informationProbing properties of the nuclear force in extreme conditions
Probing properties of the nuclear force in extreme conditions O. Sorlin (GANIL, Caen, rance) PART 1: Testing the spin-orbit force with a bubble nucleus PART 2: Proton-neutron forces at the drip-line May
More informationtwo-proton radioactivity discovery of two-proton radioactivity experimental results with TPC s future studies
two-proton radioactivity discovery of two-proton radioactivity experimental results with TPC s future studies Bertram Blank CEN Bordeaux-Gradignan EPS European Nuclear Physics Conference 2009 Spring meeting
More informationThe surrogate-reaction method: status and perspectives. Beatriz Jurado, CENBG, France
The surrogate-reaction method: status and perspectives Beatriz Jurado, CENBG, France 1" Nuclear data for waste incineration and innovative fuel cycles Minor actinides incineration Th/U cycle Neutron-induced
More informationTesting the validity of the Spin-orbit force Nuclear forces at the drip-line O. Sorlin (GANIL, Caen, France) PART 1:
Testing the validity of the Spin-orbit force Nuclear forces at the drip-line O. Sorlin (GANIL, Caen, France) PART : The 34 Si a bubble nucleus? Probing the neutron SO interaction using the 34 Si nucleus
More informationOblate nuclear shapes and shape coexistence in neutron-deficient rare earth isotopes
Oblate nuclear shapes and shape coexistence in neutron-deficient rare earth isotopes Andreas Görgen Service de Physique Nucléaire CEA Saclay Sunniva Siem Department of Physics University of Oslo 1 Context
More informationIntroduction to REX-ISOLDE concept and overview of (future) European projects
Introduction to REX-ISOLDE concept and overview of (future) European projects Thanks to: Y. Blumenfeld, P. Butler, M. Huyse, M. Lindroos, K. Riisager, P. Van Duppen Energetic Radioactive Beam Facilities
More informationLow-spin structure of 210 Bi
Low-spin structure of 21 Bi investigated in cold-neutron capture reaction on 29 Bi Natalia Cieplicka, S. Leoni, B. Fornal INFN, Sezione di Milano 5th orkshop on Nuclear Level Density and Gamma Strength,
More informationPhotonuclear studies with gamma beams Gamma above neutron threshold
Photonuclear studies with gamma beams Gamma above neutron threshold F.Camera, Università di Milano and INFN section of Milano Outline: - ELI-NP - Time structure of the beam + Beam Bandwidth - The observables
More informationCapabilities at the National Superconducting Cyclotron Laboratory. Sean Liddick NDNCA workshop, May 26-29, 2015
Capabilities at the National Superconducting Cyclotron Laboratory Sean Liddick NDNCA workshop, May 26-29, 2015 NSCL and FRIB Laboratory NSCL is funded by the U.S. National Science Foundation to operate
More informationHiRA: Science and Design Considerations
HiRA: Science and Design Considerations Scientific Program: Astrophysics: Transfer reactions Resonance spectroscopy Nuclear Structure: Inelastic scattering Transfer reactions Resonance spectroscopy Breakup
More informationFuture research program on prompt γ-ray emission in nuclear fission
Future research program on prompt γ-ray emission in nuclear fission Robert Billnert, Aleksandar Dragic, Angélique Gatera, Alf Göök, Pierre Halipré, Mattieu Lebois, Andreas Oberstedt, Stephan Oberstedt,
More informationShell model description of dipole strength at low energy
Shell model description of dipole strength at low energy Kamila Sieja Institut Pluridisciplinaire Hubert Curien, Strasbourg 8-12.5.217 Kamila Sieja (IPHC) 8-12.5.217 1 / 18 Overview & Motivation Low energy
More informationThe ACTAR project at SPES Status and perspectives
The ACTAR project at SPES Status and perspectives Riccardo Raabe Instituut voor Kern- en Stralingsfysica, KU Leuven SECOND SPES INTERNATIONAL WORKSHOP The active target concept Time-Projection Chamber
More informationAGATA campaigns at GANIL and future plans. Colloque du GANIL 2017
AGATA campaigns at GANIL and future plans Colloque du GANIL 2017 Shell evolution far from stability Isospin symmetry breaking Three-body forces clusterization p-n pairing High-resolution gamma-ray spectroscopy
More informationThe SpecMAT project: An array of gamma-ray detectors around an active gas target
The SpecMAT project: An array of gamma-ray detectors around an active gas target J. A. Swartz (KU Leuven- IKS) ATTPC workshop Michigan State University 19/05/2015 Contents 1. The SpecMAT Project 2. Scintillators
More informationThe main sources of neutrons
1.Introduction 2.High neutron fluxes 3.The drive for Multi-MW beams: a) Spallation neutron sources b) Accelerator driven sources-transmutation c) IFMIF-Testing materials for ITER d) Radioactive Ion Beams
More information(Inverse-kinematics) fission investigations in active targets
! (Inverse-kinematics) fission investigations in active targets 1. First experiment performed in GANIL.! 2. Exploring exotic fissioning systems with ACTAR TPC. C. Rodríguez-Tajes et al., rodriguez@ganil.fr!
More informationNUCLEAR PHOTONICS. Opportunities for photonuclear reactions at the ELI-NP facility. Andreas Zilges University of Cologne.
NUCLEAR PHOTONICS Opportunities for photonuclear reactions at the ELI-NP facility Andreas Zilges University of Cologne for the ELI-NP team supported by: IOP Annual Nuclear Physics Conference University
More informationPhotoneutron reactions studies at ELI-NP using a direct neutron multiplicity sorting method Dan Filipescu
EUROPEAN UNION GOVERNMENT OF ROMANIA Sectoral Operational Programme Increase of Economic Competitiveness Investments for Your Future Structural Instruments 2007-2013 Extreme Light Infrastructure Nuclear
More informationNeutrons For Science
Neutrons For Science NFS is one of the two facilities of the LINAG Experimental Area se of the LINAG s beams to produce neutrons between 1 and 40 MeV The NFS is composed of : - A neutron beam in a Time-Of-Flight
More informationarxiv:nucl-ex/ v1 29 Apr 1999
Observation of Thermodynamical Properties in the 162 Dy, 166 Er and 172 Yb Nuclei E. Melby, L. Bergholt, M. Guttormsen, M. Hjorth-Jensen, F. Ingebretsen, S. Messelt, J. Rekstad, A. Schiller, S. Siem, and
More informationTesting the validity of the Spin-orbit interaction Nuclear forces at the drip-line O. Sorlin (GANIL, Caen, France)
PART 1: Testing the validity of the Spin-orbit interaction Nuclear forces at the drip-line O. Sorlin (GANIL, Caen, France) Introduction to the SO interaction Historical picture -> magic numbers The SO
More information14th edi)on of the Interna)onal Conference on Nuclear Reac)on Mechanisms: Fission of ac*nide nuclei using mul*- nucleon transfer reac*ons
14th edi)on of the Interna)onal Conference on Nuclear Reac)on Mechanisms: Fission of ac*nide nuclei using mul*- nucleon transfer reac*ons Romain LÉGILLON Advanced Science Research Center, Japan Atomic
More informationMeasurement of high energy gamma rays with large volume LaBr 3 :Ce scintillators
Measurement of high energy gamma rays with large volume LaBr 3 :Ce scintillators L.Pellegri 1,2, S.Brambilla 2, S.Riboldi 1,2, F.Camera 1,2,A.Giaz 1,2, A.Krasznahorkay 3, L.Stuhl 3, M.Csatlòs 3, J.Gulyàs
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 informationRecent developments in neutron capture on actinides using the DANCE detector
Recent developments in neutron capture on actinides using the DANCE detector J.L. Ullmann Los Alamos National Laboratory Sixth Workshop on Nuclear Level Density and Gamma Strength. Oslo, Norway, May 8
More informationFirst results from the AGATA Demonstrator. Francesco Recchia Università di Padova
First results from the AGATA Demonstrator Francesco Recchia Università di Padova XCVII Congresso Nazionale SIF L'Aquila, 26-30 Settembre, 2011 Challenges in Nuclear Structure Shell structure in nuclei
More informationNuclear Resonance Fluorescence with. NRF with monoenergetic photons and fundamental experiments at ELI-NP. Julius Wilhelmy
Nuclear Resonance Fluorescence with monoenergetic photons and fundamental experiments at ELI-NP Julius Wilhelmy Institute for Nuclear Physics, University of Cologne g BMBF Verbund 05P2015 Darmstadt Köln
More informationPhotopion photoproduction and neutron radii
Photopion photoproduction and neutron radii Dan Watts, Claire Tarbert University of Edinburgh Crystal Ball and A2 collaboration at MAMI Jefferson Lab PREX workshop, August 2008 Talk Outline Nuclear (π
More informationMapping Low-Energy Fission with RIBs (in the lead region)
Mapping Low-Energy Fission with RIBs (in the lead region) Andrei Andreyev University of York, UK Japan Atomic Energy Agency (JAEA), Tokai, Japan Low-energy fission in the new regions of the Nuclear Chart
More informationExperimental Neutron Capture Measurements and Nuclear Theory Needs
Experimental Neutron Capture Measurements and Nuclear Theory Needs A. Couture INT 17-1a Univ. of Washington Seattle, WA Slide 1 Outline Why do we need neutron capture Traditional (n,g) measurements Determining
More informationHigh precision neutron inelastic cross section measurements
High precision neutron inelastic cross section measurements A. Olacel, C. Borcea, M. Boromiza, A. Negret IFIN-HH, DFN Outline The experimental setup GELINA GAINS Data analysis algorithm. Monte Carlo simulations
More informationHigh efficiency 3 He neutron detector TETRA for DESIR.
DESIR workshop, May 2010 High efficiency 3 He neutron detector TETRA for DESIR. Yuri Penionzhkevich Joint Institute for Nuclear Research, Dubna Beta Decay of Exotic Nuclei: Goal to study Neutron emission
More informationdiscovery of two-proton radioactivity future studies Bertram Blank, CEN Bordeaux-Gradignan Hirschegg, january 2008
two-proton radioactivity discovery of two-proton radioactivity Experimental results with TPC future studies Bertram Blank, CEN Bordeaux-Gradignan Hirschegg, 14-18 january 2008 alpha emission of 4 He 2
More informationOPENING NEW FRONTIERS IN NUCLEAR SCIENCE & APPLICATIONS
ithemba LABS: OPENING NEW FRONTIERS IN NUCLEAR SCIENCE & APPLICATIONS ithemba LABS : National Facility for pure and applied research, development and training in Accelerator Based Sciences ithemba LABS
More informationStatus of the TRACE array
Status of the TRACE array D. Mengoni University of the West of Scotland, Paisley - U.K. INFN - Sezione di Padova, Padova - Italy SPES workshop, LNL - Italy Nov 15 th 17 th, 2010 Outline 1 Introduction
More informationFuture gamma-ray spectroscopic experiment (J-PARC E63) on 4 ΛH
Future gamma-ray spectroscopic experiment (J-PARC E63) on ΛH 2018/6/26 T. O. Yamamoto KEK IPNS (Japan) for the E63 collaboration Contents CSB in s-shell hypernuclear system studied via γ-ray spectroscopy
More informationMapping Fission in Terra Incognita in the neutron-deficient lead region
Mapping Fission in Terra Incognita in the neutron-deficient lead region Andrei Andreyev University of York, UK Japan Atomic Energy Agency (JAEA, Tokai, Japan) 200,202,204 Fr N/Z~1.25 192,194,196 At 186,188
More informationJosé Antonio Briz Monago, M. Carmona-Gallardo and. M.J.G. Borge, A. Perea, O. Tengblad, M. Turrión
GEANT4 SIMULATIONS FOR THE R3B CALORIMETER José Antonio Briz Monago, M. Carmona-Gallardo and M.J.G. Borge, A. Perea, O. Tengblad, M. Turrión Outline Introduction: FAIR at GSI (Germany) R3B Experiment Requirements
More informationGoing beyond the traditional nuclear shell model with the study of neutron-rich (radioactive) light nuclei
Going beyond the traditional nuclear shell model with the study of neutron-rich (radioactive) light nuclei Fred SARAZIN Colorado School of Mines SORRY Overview What is low-energy nuclear physics? Stable
More informationIsospin Character of Low-Lying Pygmy Dipole States via Inelastic Scattering of 17 O ions
14 th International Conference on Nuclear Reaction Mechanisms Varenna, June 15-19, 2015 Isospin Character of Low-Lying Pygmy Dipole States via Inelastic Scattering of 17 O ions Fabio Crespi Università
More informationInternational Nuclear Physics Conference Adelaide, Australia September 13, 2016
International Nuclear Physics Conference Adelaide, Australia September 13, 2016 This work was performed under the auspices of the U.S. Department of Energy by under contract DE-AC52-07NA27344. Lawrence
More informationRecent neutron capture measurements at FZK
René Reifarth Recent neutron capture measurements at FZK Outline: Overview of s-process nucleosynthesis Nuclear data needs for the s-process where do we stand? Recent (n,γ) cross section measurements at
More informationAccelerated radioactive beams and the future of nuclear physics. David Jenkins
Accelerated radioactive beams and the future of nuclear physics David Jenkins Particle accelerators 1930s: Cockcroft and Walton 1990s: Superconducting niobium cavities Energetic Radioactive Beam Facilities
More informationDETERMINATION OF THE NEUTRON FISSION CROSS-SECTION FOR 233 Pa FROM 0.5 TO 10 MeV USING THE TRANSFER REACTION 232 Th( 3 He,pf) 234 Pa.
DETERMINATION OF THE NEUTRON FISSION CROSS-SECTION FOR 233 Pa FROM 0.5 TO 10 MeV USING THE TRANSFER REACTION 232 Th( 3 He,pf) 234 Pa M. Petit 1), M. Aiche 1), S. Andriamonje 1), G. Barreau 1), S. Boyer
More informationSearch for the chiral doublet bands in 78 Br. Speaker: C. Liu Supervisor: Prof. S. Y. Wang Shandong University, Weihai
Search for the chiral doublet bands in 78 Br Speaker: C. Liu Supervisor: Prof. S. Y. Wang Shandong University, Weihai Contents 1 2 3 4 Introduction Experiment Details Result and Discussions Conclusion
More informationCENBG, Bordeaux, France 2. CEA/DAM-DIF, Arpajon,France 3. CEA/DEN, Saint Paul Lez Durance, France 4. IPN Orsay, Orsay France 5
D. Denis-Petit 1, B. Jurado 1, P. Marini 2, R. Pérez-Sanchez 1, M. Aiche 1, S. Czajkowski 1, L. Mathieu 1, I. Tsekhanovich 1,V. Méot 2,O. Roig 2,B. Morillon 2, P. Romain 2, O. Bouland 3, L. Audouin 4,
More informationFission cross section measured at n_tof with PPACs
Fission cross section measured at n_tof with PPACs L. Audoin1, I. Duran2, E. Leal2, LS. Leong1, C. Paradela2*, D. Tarrío2**, L. Tassan-Got1 on behalf of the n_tof Collaboration 1. Institut de Physique
More informationAn introduction to Neutron Resonance Densitometry (Short Summary)
An introduction to Neutron Resonance Densitometry (Short Summary) H. Harada 1, M. Koizumi 1, H. Tsuchiya 1, F. Kitatani 1, M. Seya 1 B. Becker 2, J. Heyse 2, S. Kopecky 2, C. Paradela 2, P. Schillebeeckx
More informationGEANT4. A pla+orm for the simula6on of the passage of par6cles through ma:er. FYS- KJM5920. Gry M. Tveten,
GEANT4 A pla+orm for the simula6on of the passage of par6cles through ma:er GEANT4 Download from geant4.cern.ch Read installa6on instruc6ons for your OS carefully GEANT4 is not a program, but rather
More informationStudying Neutron-Induced Reactions for Basic Science and Societal Applications
Studying Neutron-Induced Reactions for Basic Science and Societal Applications Correlations in Hadronic and Partonic Interactions 2018 A. Couture Yerevan, Armenia 28 September 2018 Operated by Los Alamos
More informationResearch at FSU, using RESOLUT facility Development of and research with two new detector-systems
Nuclear Astrophysics and Structure Research with Radioactive Beams Research at FSU, using RESOLUT facility Development of and research with two new detector-systems ResoNeut: Low-energy neutron detector-array
More informationTowards 78 Ni: In-beam γ-ray spectroscopy of the exotic nuclei close to N=50
Towards 78 Ni: In-beam γ-ray spectroscopy of the exotic nuclei close to N= IPN Orsay: D. Verney, M. Niikura, F. Aziez, S. Franchoo, F. Ibrahim, F. Le Blanc, I. Matea, I. Stefan CSNSM Orsay: A. Korichi
More informationDr. Tuncay Bayram. Sinop University Department of Nuclear Energy Engineering Sinop, Turkey.
Dr. Tuncay Bayram Sinop University Department of Nuclear Energy Engineering Sinop, Turkey t.bayram@ymail.com 1 About Department of Nuclear Energy Engineering, Sinop University In 2007, Sinop University
More informationExcited State Transitions in Double Beta Decay: A brief Review
Excited State Transitions in Double Beta Decay: A brief Review Fifteenth International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS15) Dresden 26/08/2014 Björn Lehnert Institut für
More informationNuclear physics activities in Vietnam (highlight from NHEP2016 conference)
Nuclear physics activities in Vietnam (highlight from NHEP2016 conference) Experimental nuclear physics (INST Hanoi, INR Da Lat, IOP Hanoi): mainly through the international collaboration projects (nuclear
More informationW. Udo Schröder Departments of Chemistry & of Physics and Astronomy
W. Udo Schröder Departments of Chemistry & of Physics and Astronomy ANSEL Faculty Instructors ACS NuSci Acad Infrastructure 2 Prof. Frank Wolfs Prof. Udo Schrőder Research: Large Underground Xenon (LUX)
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 informationTowards. sharing the vision shaping the future with SAIF (South African isotopes Facility) Faiçal Azaiez
ithemba LABS Towards sharing the vision shaping the future with SAIF (South African isotopes Facility) Faiçal Azaiez The largest RI in the southern Hemisphere ithemba ithemba LABS (Laboratory for Accelerator
More informationLevel densities, gamma-ray strength functions and the evolution of the pygmy resonance in Sn isotopes
Level densities, gamma-ray strength functions and the evolution of the pygmy resonance in isotopes Heidi Kristine Toft Thesis submitted in partial fulfilment of the requirements for the degree of Philosophiae
More informationThe Generalized Centroid Difference Method
15th International Symposium on Capture Gamma ray Spectroscopy and Related Topics (CGS15) 26.08.2014, Technische Universität Dresden The Generalized Centroid Difference Method for lifetime measurements
More information