Development of a geometry-compensated neutron time-of-flight detector for ICF applications with approximately 200 ps time response

Journal Article · Thu Oct 01 04:00:00 EDT 1992 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1143539· OSTI ID:7153887

Murphy, T J; Lerche, R A ^[1]

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1. University of California, Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)

Current-mode neutron time-of-flight detectors are used on Nova for neutron yield, ion temperature, and neutron emission time measurements. Currently used detectors are limited by the time response of the microchannel plate photomultiplier tubes used with the scintillators, scintillator decay time, scintillator thickness, and oscilloscope response time. A change in the geometry of the scintillator allows one to take advantage of the increased time resolution made possible by more advanced transient recorders and microchannel plate photomultiplier tubes. A prototype detector has been designed to incorporate these changes, and could potentially yield time resolution of less than 150 ps. Experimental results are presented demonstrating an ion temperature measurement of a direct-drive DT implosion on Nova.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7153887
• Journal Information: Review of Scientific Instruments; (United States), Journal Name: Review of Scientific Instruments; (United States) Vol. 63:10; ISSN RSINA; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700320* -- Plasma Diagnostic Techniques & Instrumentation-- (1992-)
DESIGN
ICF DEVICES
LAWRENCE LIVERMORE LABORATORY
MEASURING INSTRUMENTS
NATIONAL ORGANIZATIONS
NEUTRON DETECTORS
NOVA FACILITY
PLASMA DIAGNOSTICS
RADIATION DETECTORS
SCINTILLATION COUNTERS
SCINTILLATOR-PHOTODIODE DETECTORS
THERMONUCLEAR DEVICES
TIME-OF-FLIGHT METHOD
US AEC
US DOE
US ERDA
US ORGANIZATIONS