The magnetic recoil spectrometer for measurements of the absolute neutron spectrum at OMEGA and the NIF

Casey, D. T.; Frenje, J. A.; Gatu Johnson, M.; Seguin, F. H.; Li, C. K.; Petrasso, R. D.; Glebov, V. Yu.; Katz, J.; Magoon, J.; Meyerhofer, D. D.; Sangster, T. C.; Shoup, M.; Ulreich, J.; Ashabranner, R. C.; Bionta, R. M.; Carpenter, A. C.; Felker, B.; Khater, H. Y.; LePape, S.; MacKinnon, A.; McKernan, M. A.; Moran, M.; Rygg, J. R.; Yeoman, M. F.; Zacharias, R.; Leeper, R. J.; Fletcher, K.; Farrell, M.; Jasion, D.; Kilkenny, J.; Paguio, R.

doi:10.1063/1.4796042

The magnetic recoil spectrometer for measurements of the absolute neutron spectrum at OMEGA and the NIF

Journal Article · Thu Apr 18 00:00:00 EDT 2013 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4796042· OSTI ID:1172369

Casey, D. T. ^[1]; Frenje, J. A. ^[2]; Gatu Johnson, M. ^[2]; Seguin, F. H. ^[2]; Li, C. K. ^[2]; Petrasso, R. D. ^[2]; Glebov, V. Yu. ^[3]; Katz, J. ^[3]; Magoon, J. ^[3]; Meyerhofer, D. D. ^[3]; Sangster, T. C. ^[3]; Shoup, M. ^[3]; Ulreich, J. ^[3]; Ashabranner, R. C. ^[4]; Bionta, R. M. ^[4]; Carpenter, A. C. ^[4]; Felker, B. ^[4]; Khater, H. Y. ^[4]; LePape, S. ^[4]; MacKinnon, A. ^[4] more »

MIT, Cambridge, MA (United States). Plasma Science and Fusion Center; High Energy Density Physics Division, Plasma Science and Fusion Center, Massachusetts Institute of Technology
MIT, Cambridge, MA (United States). Plasma Science and Fusion Center
Univ. of Rochester, NY (United States). Lab. for Laser Energitics
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sandia National Laboratories, Albuquerque, NM (United States)
State Univ. of New York at Geneseo, NY (United States)
General Atomics, San Diego, CA (United States)

The neutron spectrum produced by deuterium-tritium (DT) inertial confinement fusion implosions contains a wealth of information about implosion performance including the DT yield, iontemperature, and areal-density. The Magnetic Recoil Spectrometer (MRS) has been used at both the OMEGA laser facility and the National Ignition Facility (NIF) to measure the absolute neutron spectrum from 3 to 30 MeV at OMEGA and 3 to 36 MeV at the NIF. These measurements have been used to diagnose the performance of cryogenic target implosions to unprecedented accuracy. Interpretation of MRS data requires a detailed understanding of the MRS response and background. This paper describes ab initio characterization of the system involving Monte Carlo simulations of the MRS response in addition to the commission experiments for in situ calibration of the systems on OMEGA and the NIF.

View Accepted Manuscript (DOE)

Research Organization:: Massachusetts Institute of Technology (MIT), Cambridge, MA (United States). High Energy Density Physics Div., Plasma Science and Fusion Center

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

Grant/Contract Number:: NA0002035

OSTI ID:: 1172369

Alternate ID(s):: OSTI ID: 22105506

Journal Information:: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 4 Vol. 84; ISSN 0034-6748; ISSN RSINAK

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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