Analysis of the neutron time-of-flight spectra from inertial confinement fusion experiments

Hatarik, R.; Sayre, D. B.; Caggiano, J. A.; Phillips, T.; Eckart, M. J.; Bond, E. J.; Cerjan, C.; Grim, G. P.; Hartouni, E. P.; Knauer, J. P.; Mcnaney, J. M.; Munro, D. H.

doi:10.1063/1.4935455

Analysis of the neutron time-of-flight spectra from inertial confinement fusion experiments

Journal Article · Thu Nov 12 04:00:00 EST 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4935455· OSTI ID:1240967

Hatarik, R. ^[1]; Sayre, D. B. ^[1]; Caggiano, J. A. ^[1]; ^[1]; Eckart, M. J. ^[1]; Bond, E. J. ^[1]; ^[1]; Grim, G. P. ^[1]; ^[1]; Knauer, J. P. ^[2]; Mcnaney, J. M. ^[1]; ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Univ. of Rochester, NY (United States). Lab. for Laser Energetics

For a long time, neutron time-of-flight diagnostics been used to characterize the neutron spectrum produced by inertial confinement fusion experiments. The primary diagnostic goals are to extract the d+t→n+α (DT) and d+d→n+³He (DD) neutron yields and peak widths, and the amount DT scattering relative to its unscattered yield, which is also known as the down-scatter ratio (DSR). These quantities are used to infer yield weighted plasma conditions, such as ion temperature (T_ion) and cold fuel areal density. We explain such novel methodologies used to determine neutron yield, apparent T_ion and DSR.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1240967

Alternate ID(s):: OSTI ID: 1225817
OSTI ID: 1341985
OSTI ID: 22492913

Report Number(s):: LLNL-JRNL--675169

Journal Information:: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 18 Vol. 118; ISSN JAPIAU; ISSN 0021-8979

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

Country of Publication:: United States

Language:: English

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