C13(n,2nγ)C12 γ -ray production in the 14–16 MeV incident neutron energy range

McEvoy, A. M.; Herrmann, H. W.; Kim, Y.; Sedillo, T. S.; Geppert-Kleinrath, H.; Brune, C. R.; Massey, T. N.; Voinov, A. V.; Parker, C. E.; Rubery, M. S.; Stoeffl, W.

doi:10.1103/physrevc.103.064607

Title: C 13 ( n , 2 n γ ) C 12 γ -ray production in the 14–16 MeV incident neutron energy range

Journal Article · Mon Jun 14 00:00:00 EDT 2021 · Physical Review. C

DOI:https://doi.org/10.1103/physrevc.103.064607· OSTI ID:1889969

McEvoy, A. M. ^[1];

^[1];

^[1]; Sedillo, T. S. ^[1];

^[1];

^[2];

^[2]; Voinov, A. V. ^[2]; Parker, C. E. ^[2]; Rubery, M. S. ^[3]; Stoeffl, W. ^[3]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Ohio University, Athens, OH (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

We report γ-ray emission from ¹²C and ¹³C samples irradiated with deuterium-tritium fusion neutrons was experimentally measured at the Omega Laser Facility and at the Ohio University Edwards Accelerator Laboratory. The intent of these measurements was to determine the feasibility of using ¹³C-based plastic ablators with embedded ¹²C layers for “dark mix” diagnosis of inertial confinement fusion implosions. Spectrally resolved measurements at Ohio University identified significant 4.44-MeV γ-ray emission from the ¹³C(n, 2nγ)¹²C-L1 reaction channel. The recorded 4.44-MeV ¹³C signal was compared against emission from an identically irradiated ¹²C target with known ¹²C(n, n'γ)¹²C-L1 cross section, which resulted in an average ¹³C(n, 2nγ)¹²C-L1 cross section of 117 ± 17 mb over the incident neutron energy distribution range from 14.4 to 15.8 MeV. Integrated 13C γ -ray signals above 2.9 MeV recorded with the Gas Cherenkov Detector at Omega exceeded MCNP6.1 predictions by a factor of 3. The additional signal was attributed to 4.44-MeV γs resulting in an inferred ¹³C(n, 2nγ)¹²C-L1 cross section of 95 ± 11 mb at 14.1-MeV average incident neutron energy. As a result, the ¹³C-based “dark mix” diagnostic concept was deemed infeasible.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: 89233218CNA000001

OSTI ID:: 1889969

Report Number(s):: LA-UR-20-25310; TRN: US2310001

Journal Information:: Physical Review. C, Vol. 103, Issue 6; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (21)

Monte Carlo validation experiments for the gas Cherenkov detectors at the National Ignition Facility and Omega Rubery, M. S.; Horsfield, C. J.; Herrmann, H. Review of Scientific Instruments, Vol. 84, Issue 7 https://doi.org/10.1063/1.4812572	journal	July 2013
Progress towards ignition on the National Ignition Facility Edwards, M. J.; Patel, P. K.; Lindl, J. D. Physics of Plasmas, Vol. 20, Issue 7 https://doi.org/10.1063/1.4816115	journal	July 2013
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
The Ohio University beam swinger facility Finlay, R. W.; Brient, C. E.; Carter, D. E. Nuclear Instruments and Methods in Physics Research, Vol. 198, Issue 2-3 https://doi.org/10.1016/0167-5087(82)90256-3	journal	July 1982
Hot-Spot Mix in Ignition-Scale Inertial Confinement Fusion Targets Regan, S. P.; Epstein, R.; Hammel, B. A. Physical Review Letters, Vol. 111, Issue 4 https://doi.org/10.1103/PhysRevLett.111.045001	journal	July 2013
Extended performance gas Cherenkov detector for gamma-ray detection in high-energy density experiments Herrmann, H. W.; Kim, Y. H.; Young, C. S. Review of Scientific Instruments, Vol. 85, Issue 11 https://doi.org/10.1063/1.4892553	journal	November 2014
Fuel gain exceeding unity in an inertially confined fusion implosion Hurricane, O. A.; Callahan, D. A.; Casey, D. T. Nature, Vol. 506, Issue 7488 https://doi.org/10.1038/nature13008	journal	February 2014
RIPL – Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluations Capote, R.; Herman, M.; Obložinský, P. Nuclear Data Sheets, Vol. 110, Issue 12 https://doi.org/10.1016/j.nds.2009.10.004	journal	December 2009
Gamma Reaction History ablator areal density constraints upon correlated diagnostic modeling of National Ignition Facility implosion experiments Cerjan, C.; Sayre, D. B.; Landen, O. L. Physics of Plasmas, Vol. 22, Issue 3 https://doi.org/10.1063/1.4916124	journal	March 2015
High-mode Rayleigh-Taylor growth in NIF ignition capsules Hammel, B. A.; Haan, S. W.; Clark, D. S. High Energy Density Physics, Vol. 6, Issue 2 https://doi.org/10.1016/j.hedp.2009.12.005	journal	June 2010
Copper activation deuterium-tritium neutron yield measurements at the National Ignition Facility Cooper, G. W.; Ruiz, C. L.; Leeper, R. J. Review of Scientific Instruments, Vol. 83, Issue 10 https://doi.org/10.1063/1.4746999	journal	October 2012
Hydrodynamic instability growth and mix experiments at the National Ignition Facility Smalyuk, V. A.; Barrios, M.; Caggiano, J. A. Physics of Plasmas, Vol. 21, Issue 5 https://doi.org/10.1063/1.4872026	journal	May 2014
Measurement of neutron total cross sections up to 560 MeV Abfalterer, W. P.; Bateman, F. B.; Dietrich, F. S. Physical Review C, Vol. 63, Issue 4 https://doi.org/10.1103/PhysRevC.63.044608	journal	March 2001
Measurements of an Ablator-Gas Atomic Mix in Indirectly Driven Implosions at the National Ignition Facility Smalyuk, V. A.; Tipton, R. E.; Pino, J. E. Physical Review Letters, Vol. 112, Issue 2 https://doi.org/10.1103/PhysRevLett.112.025002	journal	January 2014
Gamma Ray Measurements at OMEGA with the Newest Gas Cherenkov Detector “GCD-3” McEvoy, A. M.; Herrmann, H. W.; Kim, Y. Journal of Physics: Conference Series, Vol. 717 https://doi.org/10.1088/1742-6596/717/1/012109	journal	May 2016
Inelastic Scattering of 14-Mev Neutrons from Carbon and Beryllium Anderson, J. D.; Gardner, C. C.; McClure, J. W. Physical Review, Vol. 111, Issue 2 https://doi.org/10.1103/PhysRev.111.572	journal	July 1958
Hot-spot mix in ignition-scale implosions on the NIF Regan, S. P.; Epstein, R.; Hammel, B. A. Physics of Plasmas, Vol. 19, Issue 5 https://doi.org/10.1063/1.3694057	journal	May 2012
Measurement of areal density in the ablators of inertial-confinement-fusion capsules via detection of ablator (n, n′γ) gamma-ray emission Hoffman, N. M.; Herrmann, H. W.; Kim, Y. H. Physics of Plasmas, Vol. 20, Issue 4 https://doi.org/10.1063/1.4799799	journal	April 2013
The Inelastic Scattering of Neutrons Hauser, Walter; Feshbach, Herman Physical Review, Vol. 87, Issue 2 https://doi.org/10.1103/PhysRev.87.366	journal	July 1952
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
Energy levels of light nuclei A = 13–15 Ajzenberg-Selove, F. Nuclear Physics A, Vol. 523, Issue 1 https://doi.org/10.1016/0375-9474(91)90446-D	journal	February 1991

Similar Records

Investigation of secondary γ -ray angular distributions using the N15(p,α1γ)C*12 reaction

Journal Article · Mon Jun 14 00:00:00 EDT 2021 · Physical Review. C · OSTI ID:1889969

deBoer, R. J.; Boeltzig, A.; Macon, K. T.; +18 more

Constraints on key O17(α,γ)Ne21 resonances and impact on the weak s process

Journal Article · Tue Jun 21 00:00:00 EDT 2022 · Physical Review. C · OSTI ID:1889969

Williams, M.; Laird, A. M.; Choplin, A.; +7 more

Persistence of the Z=28 shell gap in A=75 isobars: Identification of a possible (1/2–) μs isomer in Co75 and β decay to Ni75

Journal Article · Mon Jun 28 00:00:00 EDT 2021 · Physical Review. C · OSTI ID:1889969

Escrig, Samuel; Morales, Ana I.; Nishimura, S.; +40 more

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
gamma-ray generation in plasmas
neutron physics
nuclear reactions

Title: C 13 ( n , 2 n γ ) C 12 γ -ray production in the 14–16 MeV incident neutron energy range

Citation Formats

References (21)

Similar Records

Related Subjects