Cherenkov-type diamond detectors for measurements of fast electrons in the TORE-SUPRA tokamak

Journal Article · Fri Jan 15 00:00:00 EST 2010 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3280221· OSTI ID:22053618

Jakubowski, L; Sadowski, M J; Zebrowski, J; Rabinski, M; Malinowski, K; Mirowski, R ^[1]; Lotte, Ph; Gunn, J; Pascal, J-Y; Colledani, G; Basiuk, V; Goniche, M; Lipa, M ^[2]

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1. Andrzej Soltan Institute for Nuclear Studies (IPJ), Otwock-Swierk 05-400 (Poland)
2. CEA, IRFM, St Paul-lez-Durance F-13108 (France)

The paper presents a schematic design and tests of a system applicable for measurements of fast electron pulses emitted from high-temperature plasma generated inside magnetic confinement fusion machines, and particularly in the TORE-SUPRA facility. The diagnostic system based on the registration of the Cherenkov radiation induced by fast electrons within selected solid radiators is considered, and electron low-energy thresholds for different radiators are given. There are some estimates of high thermal loads, which might be deposited by intense electron beams upon parts of the diagnostic equipment within the TORE-SUPRA device. There are some proposed measures to overcome this difficulty by the selection of appropriate absorption filters and Cherenkov radiators, and particularly by the application of a fast-moving reciprocating probe. The paper describes the measuring system, its tests, as well as some results of the preliminary measurements of fast electrons within TORE-SUPRA facility.

• OSTI ID: 22053618
• Journal Information: Review of Scientific Instruments, Vol. 81, Issue 1; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHERENKOV RADIATION
DESIGN
DIAMONDS
ELECTROMAGNETIC FILTERS
ELECTRON BEAMS
ELECTRON TEMPERATURE
ELECTRONS
HOT PLASMA
ION TEMPERATURE
MAGNETIC CONFINEMENT
MEASURING METHODS
PULSES
RADIATORS
TORE SUPRA TOKAMAK