A camera for imaging hard x-rays from suprathermal electrons during lower hybrid current drive on PBX-M

Technical Report · Sat May 01 00:00:00 EDT 1993

DOI:https://doi.org/10.2172/10159924· OSTI ID:10159924

von Goeler, S; Kaita, R; Bernabei, S; Davis, W; Fishman, H; Gettelfinger, G; Ignat, D; Roney, P; Stevens, J; Stodiek, W ^[1]; Jones, S; Paoletti, F ^[2]; Petravich, G ^[3]; Rimini, F ^[4]

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1. Princeton Univ., NJ (United States). Plasma Physics Lab.
2. Massachusetts Inst. of Tech., Cambridge, MA (United States). Plasma Fusion Center
3. Hungarian Academy of Sciences, Budapest (Hungary). Central Research Inst. for Physics
4. JET Joint Undertaking, Abingdon (United Kingdom)

During lower hybrid current drive (LHCD), suprathermal electrons are generated that emit hard X-ray bremsstrahlung. A pinhole camera has been installed on the PBX-M tokamak that records 128 {times} 128 pixel images of the bremsstrahlung with a 3 ms time resolution. This camera has identified hollow radiation profiles on PBX-M, indicating off-axis current drive. The detector is a 9in. dia. intensifier. A detailed account of the construction of the Hard X-ray Camera, its operation, and its performance is given.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 10159924
• Report Number(s): PPPL-2909; ON: DE93014599; TRN: 93:020859
• Resource Relation: Other Information: PBD: May 1993
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPACT IGNITION TOKAMAK
LOWER HYBRID CURRENT DRIVE
PLASMA DIAGNOSTICS
ELECTRONS
X-RAY DETECTION
BREMSSTRAHLUNG
TIME RESOLUTION
CAMERAS
700320
700350
PLASMA DIAGNOSTIC TECHNIQUES AND INSTRUMENTATION
PLASMA PRODUCTION, HEATING, CURRENT DRIVE, AND INTERACTIONS