Numerical studies of the imaging properties of doubly focussing crystals and their application to ITER

Journal Article · Sun Jan 01 00:00:00 EST 1995 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1146341· OSTI ID:6689759

Bitter, M; Fraenkel, B; Hill, K W; Hsuan, H; von Goeler, S ^[1]

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1. Princeton University, Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

Line brightness calculations for the parameters at the International Thermonuclear Experimental Reactor (ITER) and results from recent experiments on the Tokamak Fusion Test Reactor (TFTR) indicate that time-resolved measurements of the central ion temperature and other central plasma parameters should be feasible on ITER with nonperturbing amounts of krypton. Since the measurements will have to be performed in the presence of high fluxes of 14-MeV neutrons from DT-fusion reactions, the size of windows, apertures and x-ray detectors must be as small as possible. Under these conditions, the use of doubly focussing crystals can significantly enhance the signal-to-noise ratio. This paper describes numerical studies of the focussing properties of spherically bent crystals and their application to ITER.

• DOE Contract Number: AC02-76CH03073
• OSTI ID: 6689759
• Journal Information: Review of Scientific Instruments; (United States), Vol. 66:1; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ITER TOKAMAK
ION TEMPERATURE
PLASMA DIAGNOSTICS
X-RAY SPECTROMETERS
BRIGHTNESS
KRYPTON IONS
PLASMA IMPURITIES
SIGNAL-TO-NOISE RATIO
CHARGED PARTICLES
CLOSED PLASMA DEVICES
IMPURITIES
IONS
MEASURING INSTRUMENTS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SPECTROMETERS
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS
700320* - Plasma Diagnostic Techniques & Instrumentation- (1992-)
700410 - Specific Fusion Devices & Experiments- (1992-)