X-ray imaging of uniform large scale-length plasmas created from gas-filled targets on Nova

Conference · Sun May 01 00:00:00 EDT 1994

OSTI ID:10179990

Kalantar, D H; MacGowan, B J; Bernat, T P ^[1]

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1. and others

We report on the production and characterization of large scale-length plasmas created by illuminating gas-filled thin-walled balloon-like targets using the Nova laser. The targets consisted of a 4--5000 {angstrom} skin surrounding 1 atm of neopentane which when ionized becomes a plasma with 10{sup 21} electrons/cm{sup 3}. Results are presented from x-ray imaging used to evaluate the uniformity of the plasma. The most uniform plasmas were produced by illuminating the target with large converging beams that overlapped to cover most of the surface of the gasbag. An alternate focus geometry using small beam spots resulted in a less uniform plasma with low density holes in it.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 10179990
• Report Number(s): UCRL-JC-116195; CONF-940552-31; ON: DE94018339
• Resource Relation: Conference: 10. topical conference on high-temperature plasma diagnostics,Rochester, NY (United States),8-12 May 1994; Other Information: PBD: May 1994
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LASER TARGETS
PLASMA PRODUCTION
LASER-PRODUCED PLASMA
PLASMA DIAGNOSTICS
NOVA FACILITY
IMAGE PROCESSING
INERTIAL CONFINEMENT
700411
700320
INERTIAL CONFINEMENT DEVICES
PLASMA DIAGNOSTIC TECHNIQUES AND INSTRUMENTATION