Measurement of ICF fuel ion temperature on Nova
Conference
·
OSTI ID:10129918
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 diagnostic. 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 degradation in high convergence implosions is necessary to increase the confidence of the target performance for the next generation National Ignition Facility planned by the US ICF Program.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10129918
- Report Number(s):
- LA-UR--94-345; CONF-931048--11; ON: DE94006150
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700320
700411
DEUTERIUM TARGET
ICF DEVICES
INERTIAL CONFINEMENT
INERTIAL CONFINEMENT DEVICES
ION TEMPERATURE
LASER FUSION REACTORS
LASER-PRODUCED PLASMA
NEUTRON SPECTROSCOPY
NOVA FACILITY
PLASMA DIAGNOSTIC TECHNIQUES AND INSTRUMENTATION
PLASMA DIAGNOSTICS
TIME-OF-FLIGHT METHOD
700320
700411
DEUTERIUM TARGET
ICF DEVICES
INERTIAL CONFINEMENT
INERTIAL CONFINEMENT DEVICES
ION TEMPERATURE
LASER FUSION REACTORS
LASER-PRODUCED PLASMA
NEUTRON SPECTROSCOPY
NOVA FACILITY
PLASMA DIAGNOSTIC TECHNIQUES AND INSTRUMENTATION
PLASMA DIAGNOSTICS
TIME-OF-FLIGHT METHOD