A new measurement of the 6Li(n,α)t cross section at MeV energies using a 252Cf fission chamber and 6Li scintillators

Kirsch, Leo Edward; Devlin, Matthew James; Mosby, Shea Morgan; Gomez, Jaime A.

doi:10.1016/j.nima.2017.08.046

A new measurement of the ⁶Li(n,α)t cross section at MeV energies using a ²⁵²Cf fission chamber and ⁶Li scintillators

Journal Article · Fri Sep 01 00:00:00 EDT 2017 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2017.08.046· OSTI ID:1392811

Kirsch, Leo Edward ^[1]; ^[2]; ^[2]; Gomez, Jaime A. ^[2]

Univ. of California, Berkeley, CA (United States). Nuclear Engineering Dept.
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

We present a new measurement of the ⁶Li(n,α)t cross section from 245 keV to 10 MeV using a ²⁵²Cf fission chamber with ⁶LiI(Eu) and Cs₂LiYCl₆:Ce (CLYC) scintillators which act as both target and detector. Neutron energies are determined from the time of flight (TOF) method using the signals from spontaneous fission and reaction product recoil. Simulations of neutron downscatter in the crystals and fission chamber bring ⁶Li(n,α)t cross section values measured with the ⁶LiI(Eu) into agreement with previous experiments and evaluations, except for two resonances at 4.2 and 6.5 MeV introduced by ENDF/B-VII.1. Suspected neutron transport modeling issues cause the cross section values obtained with CLYC to be discrepant above 2 MeV.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL)

Sponsoring Organization:: USDOE Office of Science (SC). Nuclear Physics (NP) (SC-26); USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-06NA25396; NA0002135

OSTI ID:: 1392811

Alternate ID(s):: OSTI ID: 1549907
OSTI ID: 22897084
OSTI ID: 1399344

Report Number(s):: LA-UR-17-23596

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Vol. 874; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (26)

A sensitive spectrometer for fast neutrons using 6LiI(Eu) Johnson, D. R.; Thorngate, J. H.; Perdue, P. T. Nuclear Instruments and Methods, Vol. 75, Issue 1 https://doi.org/10.1016/0029-554X(69)90650-8	journal	November 1969
Calibration of a Li-glass detector for neutron energies above 50 keV by the 1H(t,n) 3He reaction Drosg, M.; Drake, D. M.; Masarik, Jozef Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 94, Issue 3 https://doi.org/10.1016/0168-583X(94)95371-6	journal	November 1994
Response curves of alkali halide scintillators with special reference to the Li6(n,α) reaction in lithium iodide Ophel, T. R. Nuclear Instruments, Vol. 3, Issue 1 https://doi.org/10.1016/0369-643X(58)90048-3	journal	July 1958
Total cross sections for the 6Li(n, α)3H reaction between 2 and 10 MeV Bartle, C. M. Nuclear Physics A, Vol. 330, Issue 1 https://doi.org/10.1016/0375-9474(79)90532-3	journal	October 1979
Optical and scintillation properties of pure and Ce3+-doped Cs2LiYCl6 and Li3YCl6:Ce3+ crystals Combes, C. M.; Dorenbos, P.; van Eijk, C. W. E. Journal of Luminescence, Vol. 82, Issue 4 https://doi.org/10.1016/S0022-2313(99)00047-2	journal	October 1999
ENDF/B-VII.0: Next Generation Evaluated Nuclear Data Library for Nuclear Science and Technology Chadwick, M. B.; Obložinský, P.; Herman, M. Nuclear Data Sheets, Vol. 107, Issue 12 https://doi.org/10.1016/j.nds.2006.11.001	journal	December 2006
EMPIRE: Nuclear Reaction Model Code System for Data Evaluation Herman, M.; Capote, R.; Carlson, B. V. Nuclear Data Sheets, Vol. 108, Issue 12 https://doi.org/10.1016/j.nds.2007.11.003	journal	December 2007
ENDF/B-VII.1 Nuclear Data for Science and Technology: Cross Sections, Covariances, Fission Product Yields and Decay Data Chadwick, M. B.; Herman, M.; Obložinský, P. Nuclear Data Sheets, Vol. 112, Issue 12 https://doi.org/10.1016/j.nds.2011.11.002	journal	December 2011
Optimizing Cs2LiYCl6 for fast neutron spectroscopy D'Olympia, N.; Chowdhury, P.; Guess, C. J. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 694 https://doi.org/10.1016/j.nima.2012.07.021	journal	December 2012
Fast neutron response of 6Li-depleted CLYC detectors up to 20MeV D׳Olympia, N.; Chowdhury, P.; Jackson, E. G. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 763 https://doi.org/10.1016/j.nima.2014.06.074	journal	November 2014
SRIM – The stopping and range of ions in matter (2010) Ziegler, James F.; Ziegler, M. D.; Biersack, J. P. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 268, Issue 11-12 https://doi.org/10.1016/j.nimb.2010.02.091	journal	June 2010
The molten salt reactor (MSR) in generation IV: Overview and perspectives Serp, Jérôme; Allibert, Michel; Beneš, Ondřej Progress in Nuclear Energy, Vol. 77 https://doi.org/10.1016/j.pnucene.2014.02.014	journal	November 2014
Activation of Lithium Iodide by Europium Schenck, James Nature, Vol. 171, Issue 4351 https://doi.org/10.1038/171518a0	journal	March 1953
Neutron Standard Cross Sections for 1H and 6Li from R-Matrix Analyses and Microscopic Calculations for the N-N and 7Li Systems Hale, Gerald M. INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY, AIP Conference Proceedings https://doi.org/10.1063/1.1944960	conference	January 2005
Differential Cross Section Measurements for the [sup 6]Li(n,t)α Reaction in the Few MeV Region Devlin, M.; Taddeucci, T. N.; Hale, G. M. CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS: Proceedings of the 13th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics, AIP Conference Proceedings https://doi.org/10.1063/1.3087015	conference	January 2009
Lithium Isotopic Abundances in Metal‐poor Halo Stars Asplund, Martin; Lambert, David L.; Nissen, Poul Erik The Astrophysical Journal, Vol. 644, Issue 1 https://doi.org/10.1086/503538	journal	June 2006
Two detector arrays for fast neutrons at LANSCE Haight, R. C.; Lee, H. Y.; Taddeucci, T. N. Journal of Instrumentation, Vol. 7, Issue 03 https://doi.org/10.1088/1748-0221/7/03/C03028	journal	March 2012
Li 6 ( n , α ) H 3 Cross Section as a Function of Neutron Energy Ribe, F. L. Physical Review, Vol. 103, Issue 3 https://doi.org/10.1103/PhysRev.103.741	journal	August 1956
Study of the Neutron Reactions Li 6 ( n , α ) H 3 , F 19 ( n , γ ) F 20 , and I 127 ( n , γ ) I 128 Gabbard, Fletcher; Davis, Robert H.; Bonner, T. W. Physical Review, Vol. 114, Issue 1 https://doi.org/10.1103/PhysRev.114.201	journal	April 1959
Cross Section for the Li 6 ( n , α ) H 3 Reaction for 1.2 <~ E n <~ 8.0 Mev Murray, R. B.; Schmitt, H. W. Physical Review, Vol. 115, Issue 6 https://doi.org/10.1103/PhysRev.115.1707	journal	September 1959
Detection of Slow Neutrons Hofstadter, R.; McIntyre, J. A.; Roderick, H. Physical Review, Vol. 82, Issue 5 https://doi.org/10.1103/PhysRev.82.749	journal	June 1951
Activation of LiI Crystal Phosphors Bernstein, W.; Schardt, A. W. Physical Review, Vol. 85, Issue 5 https://doi.org/10.1103/PhysRev.85.919	journal	March 1952
Low energy scattering cross sections for n + Li 6 , 7 reactions using the continuum-discretized coupled-channels method Ichinkhorloo, D.; Aikawa, M.; Chiba, S. Physical Review C, Vol. 93, Issue 6 https://doi.org/10.1103/PhysRevC.93.064612	journal	June 2016
Simultaneous solution to the Li 6 and Li 7 big bang nucleosynthesis problems from a long-lived negatively charged leptonic particle Kusakabe, Motohiko; Kajino, Toshitaka; Boyd, Richard N. Physical Review D, Vol. 76, Issue 12 https://doi.org/10.1103/PhysRevD.76.121302	journal	December 2007
Differential Cross-Section Measurement for the ⁶ Li( n,t ) ⁴ He Reaction at 3.67 and 4.42 MeV Zhang, Guohui; Tang, Guoyou; Chen, Jinxiang Nuclear Science and Engineering, Vol. 134, Issue 3 https://doi.org/10.13182/NSE00-A2119	journal	March 2000
⁶ Li( n ,α)T Cross Section from 70 to 3000 keV from the ²³⁵ U( n,f ) Calibration of a Thin Glass Scintillator Macklin, R. L.; Ingle, R. W.; Halperin, J. Nuclear Science and Engineering, Vol. 71, Issue 2 https://doi.org/10.13182/NSE79-A20412	journal	August 1979

Similar Records

Measurement of the /sup 252/Cf spontaneous fission neutron spectrum

Conference · Sat Oct 01 00:00:00 EDT 1977 · Natl. Bur. Stand. (U.S.), Spec. Publ.; (United States) · OSTI ID:5166745

Study of the /sup 6/Li(n,. cap alpha. )t reaction between 2 to 10 MeV

Conference · Wed Oct 01 00:00:00 EDT 1975 · Natl. Bur. Stand. (U.S.), Spec. Publ.; (United States) · OSTI ID:7275736

Related Subjects

252Cf fission chamber
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
6Li
CLYC
Cross section
LiI(Eu)
Scintillator

A new measurement of the 6Li(n,α)t cross section at MeV energies using a 252Cf fission chamber and 6Li scintillators

Citation Formats

References (26)

Similar Records

Related Subjects

A new measurement of the ⁶Li(n,α)t cross section at MeV energies using a ²⁵²Cf fission chamber and ⁶Li scintillators