Debris characterization diagnostic for the NIF

Journal Article · Mon Jan 01 04:00:00 EST 2001 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1310587· OSTI ID:40204837

Miller, M C; Celeste, J R; Stoyer, M A; Suter, L J; Tobin, M T; Grun, J; Davis, J F; Barnes, C W; Wilson, D C

Generation of debris from targets and by x-ray ablation of surrounding materials will be a matter of concern for experimenters and National Ignition Facility (NIF) operations. Target chamber and final optics protection, for example debris shield damage, drive the interest for NIF operations. Experimenters are primarily concerned with diagnostic survivability, separation of mechanical versus radiation induced test object response in the case of effects tests, and radiation transport through the debris field when the net radiation output is used to benchmark computer codes. In addition, radiochemical analysis of activated capsule debris during ignition shots can provide a measure of the ablator <{rho}r>. Conceptual design of the Debris Monitor and Rad-Chem Station, one of the NIF core diagnostics, is presented. Methods of debris collection, particle size and mass analysis, impulse measurement, and radiochemical analysis are given. A description of recent experiments involving debris collection and impulse measurement on the OMEGA and Pharos lasers is also provided.

• Sponsoring Organization: (US)
• OSTI ID: 40204837
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 1 Vol. 72; ISSN 0034-6748
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPUTER CODES
IGNITION
OPTICS
PARTICLE SIZE
RADIATION TRANSPORT
RADIATIONS
RADIOCHEMICAL ANALYSIS
TARGET CHAMBERS
US NATIONAL IGNITION FACILITY