Measurement of ICF fuel ion temperature on Nova

Conference · Wed Oct 05 04:00:00 EDT 1994 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:6640987

Harris, D B; Chrien, R E ^[1]

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1. Los Alamos National Laboratory, Mail Stop F645, Los Alamos, New Mexico 87545 (United States)

A new diagnostic for measuring the average fuel ion temperature in inertial confinement fusion (ICF) targets at the time of peak burn has been constructed by Los Alamos and installed on the Nova Laser System at Lawrence Livermore National Laboratory. This ion-temperature diagnostic measures the time-of-flight of fusion neutrons and determines the thermonuclear-reaction-weighted ion temperature through the time-of-arrival distribution. Preliminary experiments have been designed and performed to test the dagnostic. These tests measured the ion temperature of targets designed to have varying temperatures and yields. Additionally, an experiment has been designed to examine the cause of the increase in yield degradation (compared to clean 1-D calculations) as the capsule convergence is increased. Understanding the cause of yield degration in high convergence implosions is necessary to increase the confidence of the target performance for the next generation National Ignition Facility planned by the U.S. ICF Program. [copyright] 1994 [ital American] [ital Institute] [ital of] [ital Physics]

• OSTI ID: 6640987
• Report Number(s): CONF-931048--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 318:1
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700310* -- Plasma Confinement-- (1992-)
CONFINEMENT
FUELS
INERTIAL CONFINEMENT
ION TEMPERATURE
LASER TARGETS
MEASURING INSTRUMENTS
NOVA FACILITY
PLASMA CONFINEMENT
PLASMA DIAGNOSTICS
TARGETS
THERMONUCLEAR FUELS
TIME-OF-FLIGHT METHOD
TIMING PROPERTIES