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Title: The NIF 4.5-m nTOF Detectors

Abstract

The first several campaigns of laser fusion experiments at the National Ignition Facility (NIF) included a family of high-sensitivity scintillator/photodetector neutron-time-of-flight (nTOF) detectors for measuring DD and DT neutron yields. The detectors provided consistent neutron yield benchmarks from below 1E9 (DD) to nearly 1E15 (DT). The detectors demonstrated DT yield measurement precisions better than 5%, but the absolute accuracy relies on cross calibration with independent measurements of absolute neutron yield. The 4.5-m nTOF data have provided a useful testbed for testing improvements in nTOF data processing, especially with respect to improving the accuracies of the detector impulse response functions. The resulting improvements in data analysis methods have produced more accurate results. In summary, results from the NIF 4.5-m nTOF detectors have provided consistent measurements of DD and DT neutron yields from laser-fusion implosions.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1043655
Report Number(s):
LLNL-CONF-557603
TRN: US1203175
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Presented at: 19th Topical Conference, High-Temperature Plasma Diagnostics, Monterey, CA, United States, May 06 - May 10, 2012
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 42 ENGINEERING; ACCURACY; BENCHMARKS; CALIBRATION; DATA ANALYSIS; DATA PROCESSING; IMPLOSIONS; LASERS; NEUTRONS; PLASMA DIAGNOSTICS; RESPONSE FUNCTIONS; TESTING; US NATIONAL IGNITION FACILITY

Citation Formats

Moran, M J, Bond, E J, Clancy, T J, Eckart, M J, Khater, H Y, and Glebov, V Y. The NIF 4.5-m nTOF Detectors. United States: N. p., 2012. Web.
Moran, M J, Bond, E J, Clancy, T J, Eckart, M J, Khater, H Y, & Glebov, V Y. The NIF 4.5-m nTOF Detectors. United States.
Moran, M J, Bond, E J, Clancy, T J, Eckart, M J, Khater, H Y, and Glebov, V Y. Mon . "The NIF 4.5-m nTOF Detectors". United States. https://www.osti.gov/servlets/purl/1043655.
@article{osti_1043655,
title = {The NIF 4.5-m nTOF Detectors},
author = {Moran, M J and Bond, E J and Clancy, T J and Eckart, M J and Khater, H Y and Glebov, V Y},
abstractNote = {The first several campaigns of laser fusion experiments at the National Ignition Facility (NIF) included a family of high-sensitivity scintillator/photodetector neutron-time-of-flight (nTOF) detectors for measuring DD and DT neutron yields. The detectors provided consistent neutron yield benchmarks from below 1E9 (DD) to nearly 1E15 (DT). The detectors demonstrated DT yield measurement precisions better than 5%, but the absolute accuracy relies on cross calibration with independent measurements of absolute neutron yield. The 4.5-m nTOF data have provided a useful testbed for testing improvements in nTOF data processing, especially with respect to improving the accuracies of the detector impulse response functions. The resulting improvements in data analysis methods have produced more accurate results. In summary, results from the NIF 4.5-m nTOF detectors have provided consistent measurements of DD and DT neutron yields from laser-fusion implosions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {5}
}

Conference:
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