The magnetic recoil spectrometer for measurements of the absolute neutron spectrum at OMEGA and the NIF
- 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.
- 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
- Journal Information:
- Review of Scientific Instruments, Vol. 84, Issue 4; ISSN 0034-6748
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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