RAINIER: A simulation tool for distributions of excited nuclear states and cascade fluctuations
Abstract
In this paper, a new code has been developed named RAINIER that simulates the γ-ray decay of discrete and quasi-continuum nuclear levels for a user-specified range of energy, angular momentum, and parity including a realistic treatment of level spacing and transition width fluctuations. A similar program, DICEBOX, uses the Monte Carlo method to simulate level and width fluctuations but is restricted in its initial level population algorithm. On the other hand, modern reaction codes such as TALYS and EMPIRE populate a wide range of states in the residual nucleus prior to γ-ray decay, but do not go beyond the use of deterministic functions and therefore neglect cascade fluctuations. This combination of capabilities allows RAINIER to be used to determine quasi-continuum properties through comparison with experimental data. Finally, several examples are given that demonstrate how cascade fluctuations influence experimental high-resolution γ-ray spectra from reactions that populate a wide range of initial states.
- Authors:
-
- Univ. of California, Berkeley, CA (United States). Nuclear Engineering
- Univ. of California, Berkeley, CA (United States). Nuclear Engineering; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1423543
- Grant/Contract Number:
- NA0002135
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Additional Journal Information:
- Journal Volume: 892; Journal ID: ISSN 0168-9002
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 97 MATHEMATICS AND COMPUTING; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; simulation; Monte Carlo; gamma cascade; reaction; initial distribution
Citation Formats
Kirsch, L. E., and Bernstein, L. A. RAINIER: A simulation tool for distributions of excited nuclear states and cascade fluctuations. United States: N. p., 2018.
Web. doi:10.1016/j.nima.2018.02.096.
Kirsch, L. E., & Bernstein, L. A. RAINIER: A simulation tool for distributions of excited nuclear states and cascade fluctuations. United States. https://doi.org/10.1016/j.nima.2018.02.096
Kirsch, L. E., and Bernstein, L. A. Sun .
"RAINIER: A simulation tool for distributions of excited nuclear states and cascade fluctuations". United States. https://doi.org/10.1016/j.nima.2018.02.096. https://www.osti.gov/servlets/purl/1423543.
@article{osti_1423543,
title = {RAINIER: A simulation tool for distributions of excited nuclear states and cascade fluctuations},
author = {Kirsch, L. E. and Bernstein, L. A.},
abstractNote = {In this paper, a new code has been developed named RAINIER that simulates the γ-ray decay of discrete and quasi-continuum nuclear levels for a user-specified range of energy, angular momentum, and parity including a realistic treatment of level spacing and transition width fluctuations. A similar program, DICEBOX, uses the Monte Carlo method to simulate level and width fluctuations but is restricted in its initial level population algorithm. On the other hand, modern reaction codes such as TALYS and EMPIRE populate a wide range of states in the residual nucleus prior to γ-ray decay, but do not go beyond the use of deterministic functions and therefore neglect cascade fluctuations. This combination of capabilities allows RAINIER to be used to determine quasi-continuum properties through comparison with experimental data. Finally, several examples are given that demonstrate how cascade fluctuations influence experimental high-resolution γ-ray spectra from reactions that populate a wide range of initial states.},
doi = {10.1016/j.nima.2018.02.096},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = ,
volume = 892,
place = {United States},
year = {2018},
month = {3}
}
Free Publicly Available Full Text
Publisher's Version of Record
Other availability
Search WorldCat to find libraries that may hold this journalFigures / Tables:
Figure 1: Program flow in RAINIER. Physical variables Γ, δ, α, BR, and τ described in text.
All figures and tables
(13 total)
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
ROOT — A C++ framework for petabyte data storage, statistical analysis and visualization
dataset, January 2019
- Antcheva, I.
- Mendeley
The first generation of γ-rays from hot nuclei
journal, April 1987
- Guttormsen, M.; Ramsøy, T.; Rekstad, J.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 255, Issue 3
Novel technique for Constraining -Process ( , ) Reaction Rates
journal, December 2014
- Spyrou, A.; Liddick, S. N.; Larsen, A. C.
- Physical Review Letters, Vol. 113, Issue 23
Low-Energy Enhancement in the Photon Strength of
journal, April 2012
- Wiedeking, M.; Bernstein, L. A.; Krtička, M.
- Physical Review Letters, Vol. 108, Issue 16
The performance of the Gamma-Ray Energy Tracking In-beam Nuclear Array GRETINA
journal, May 2013
- Paschalis, S.; Lee, I. Y.; Macchiavelli, A. O.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 709
AGATA—Advanced GAmma Tracking Array
journal, March 2012
- Akkoyun, S.; Algora, A.; Alikhani, B.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 668
Simulation of γ cascades in complex nuclei with emphasis on assessment of uncertainties of cascade-related quantities
journal, November 1998
- Bečvář, F.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 417, Issue 2-3
Test of photon strength functions by a method of two-step cascades
journal, October 1992
- Bečvář, F.; Cejnar, P.; Chrien, R. E.
- Physical Review C, Vol. 46, Issue 4
Investigation of via radiative thermal-neutron capture on
journal, May 2016
- Matters, D. A.; Lerch, A. G.; Hurst, A. M.
- Physical Review C, Vol. 93, Issue 5
Analysis of possible systematic errors in the Oslo method
journal, March 2011
- Larsen, A. C.; Guttormsen, M.; Krtička, M.
- Physical Review C, Vol. 83, Issue 3
EMPIRE: Nuclear Reaction Model Code System for Data Evaluation
journal, December 2007
- Herman, M.; Capote, R.; Carlson, B. V.
- Nuclear Data Sheets, Vol. 108, Issue 12
RIPL – Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluations
journal, December 2009
- Capote, R.; Herman, M.; Obložinský, P.
- Nuclear Data Sheets, Vol. 110, Issue 12
A statistical analysis of excited nuclear states
journal, May 1959
- Ericson, Torleif
- Nuclear Physics, Vol. 11
A Composite Nuclear-Level Density Formula with Shell Corrections
journal, August 1965
- Gilbert, A.; Cameron, A. G. W.
- Canadian Journal of Physics, Vol. 43, Issue 8
Shell Effects on the Spacing of Nuclear Levels
journal, August 1956
- Newton, T. D.
- Canadian Journal of Physics, Vol. 34, Issue 8
Level density parameters for the back-shifted fermi gas model in the mass range 40 < A < 250
journal, December 1973
- Dilg, W.; Schantl, W.; Vonach, H.
- Nuclear Physics A, Vol. 217, Issue 2
Systematics of nuclear level density parameters
journal, October 2005
- Egidy, Till von; Bucurescu, Dorel
- Physical Review C, Vol. 72, Issue 4
Erratum: Systematics of nuclear level density parameters [Phys. Rev. C 72, 044311 (2005)]
journal, April 2006
- von Egidy, Till; Bucurescu, Dorel
- Physical Review C, Vol. 73, Issue 4
Experimental energy-dependent nuclear spin distributions
journal, November 2009
- von Egidy, T.; Bucurescu, D.
- Physical Review C, Vol. 80, Issue 5
Nuclear level density predictions
journal, January 2015
- Bucurescu, Dorel; von Egidy, Till
- EPJ Web of Conferences, Vol. 93
The statistical model and nuclear level densities
journal, October 1960
- Ericson, Torleif
- Advances in Physics, Vol. 9, Issue 36
Microscopic study of spin cut-off factors of nuclear level densities
journal, April 2007
- Gholami, M.; Kildir, M.; Behkami, A. N.
- Physical Review C, Vol. 75, Issue 4
Level density and spin cutoff parameters from continuum ( ) and ( ) spectra
journal, December 1974
- Grimes, S. M.; Anderson, J. D.; McClure, J. W.
- Physical Review C, Vol. 10, Issue 6
The Ame2003 atomic mass evaluation
journal, December 2003
- Audi, G.; Wapstra, A. H.; Thibault, C.
- Nuclear Physics A, Vol. 729, Issue 1
Level densities for
journal, January 2003
- Al-Quraishi, S. I.; Grimes, S. M.; Massey, T. N.
- Physical Review C, Vol. 67, Issue 1
Spin Projection in the Shell Model Monte Carlo Method and the Spin Distribution of Nuclear Level Densities
journal, October 2007
- Alhassid, Y.; Liu, S.; Nakada, H.
- Physical Review Letters, Vol. 99, Issue 16
Spin distribution in low-energy nuclear level schemes
journal, November 2008
- von Egidy, T.; Bucurescu, D.
- Physical Review C, Vol. 78, Issue 5
Neutron Capture and Nuclear Constitution
journal, February 1936
- Bohr, Niels
- Nature, Vol. 137, Issue 3461
Individual particle and collective aspects of the nuclear photoeffect
journal, August 1957
- Brink, D. M.
- Nuclear Physics, Vol. 4
Electric Dipole Ground-State Transition Width Strength Function and 7-Mev Photon Interactions
journal, April 1962
- Axel, Peter
- Physical Review, Vol. 126, Issue 2
Test of gamma-ray strength functions in nuclear reaction model calculations
journal, May 1990
- Kopecky, J.; Uhl, M.
- Physical Review C, Vol. 41, Issue 5
Observation of the M1 giant resonance by resonance averaging in 106Pd
journal, June 1987
- Kopecky, J.; Chrien, R. E.
- Nuclear Physics A, Vol. 468, Issue 2
Fluctuations of Nuclear Reaction Widths
journal, October 1956
- Porter, C. E.; Thomas, R. G.
- Physical Review, Vol. 104, Issue 2
Evaluation of theoretical conversion coefficients using BrIcc
journal, May 2008
- Kibédi, T.; Burrows, T. W.; Trzhaskovskaya, M. B.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 589, Issue 2
Maximally equidistributed combined Tausworthe generators
journal, January 1996
- L’Ecuyer, Pierre
- Mathematics of Computation, Vol. 65, Issue 213
Mersenne twister: a 623-dimensionally equidistributed uniform pseudo-random number generator
journal, January 1998
- Matsumoto, Makoto; Nishimura, Takuji
- ACM Transactions on Modeling and Computer Simulation, Vol. 8, Issue 1
ROOT — A C++ framework for petabyte data storage, statistical analysis and visualization
journal, December 2009
- Antcheva, I.; Ballintijn, M.; Bellenot, B.
- Computer Physics Communications, Vol. 180, Issue 12
Nuclear data sheets for A = 144
journal, April 1989
- Tuli, J. K.
- Nuclear Data Sheets, Vol. 56, Issue 4
Radiative strength functions in
journal, April 2005
- Guttormsen, M.; Chankova, R.; Agvaanluvsan, U.
- Physical Review C, Vol. 71, Issue 4
The unfolding of continuum γ-ray spectra
journal, June 1996
- Guttormsen, M.; Tveter, T. S.; Bergholt, L.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 374, Issue 3
Large Enhancement of Radiative Strength for Soft Transitions in the Quasicontinuum
journal, September 2004
- Voinov, A.; Algin, E.; Agvaanluvsan, U.
- Physical Review Letters, Vol. 93, Issue 14
Evidence for the Dipole Nature of the Low-Energy Enhancement in
journal, December 2013
- Larsen, A. C.; Blasi, N.; Bracco, A.
- Physical Review Letters, Vol. 111, Issue 24
Thermodynamic properties of
journal, November 2008
- Algin, E.; Agvaanluvsan, U.; Guttormsen, M.
- Physical Review C, Vol. 78, Issue 5
Level densities in and
journal, November 2003
- Schiller, A.; Algin, E.; Bernstein, L. A.
- Physical Review C, Vol. 68, Issue 5
The application of lineshape analysis in plunger measurements
journal, September 1983
- Winter, Georg
- Nuclear Instruments and Methods in Physics Research, Vol. 214, Issue 2-3
New Isovector Collective Modes in Deformed Nuclei
journal, November 1978
- Iudice, N. Lo; Palumbo, F.
- Physical Review Letters, Vol. 41, Issue 22
Impact of a low-energy enhancement in the -ray strength function on the neutron-capture cross section
journal, July 2010
- Larsen, A. C.; Goriely, S.
- Physical Review C, Vol. 82, Issue 1
Nuclear Data for Reactor Physics: Cross sections and level densities in the actinide region
journal, January 2010
- Wilson, J. N.; Siem, S.; Rose, S. J.
- EPJ Web of Conferences, Vol. 2
Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.