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

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

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992htpd.confr..15m&link_type=abstract

Presented at the 9th Topical Conference on High-Temperature Plasma Diagnostics, Santa Fe, NM, 15-19 Mar. 1992

Computer Science

Performance

Inertial Confinement Fusion, Mathematical Models, Neutron Counters, Neutrons, Plasma Control, Radiation Measurement, Scintillation Counters, Time Of Flight Spectrometers, Dynamic Response, Performance Tests

Scientific paper

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 (MCP-PMT's) 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.

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