Capabilities of gamma spectroscopy for fast alpha-particle diagnostics

Journal Article · Sat Dec 01 00:00:00 EST 1990 · Fusion Technology; (United States)

OSTI ID:5605558

Kiptilyi, V G ^[1]

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1. USSR Academy of Sciences, A.F. Ioffe Physical Technical Inst., 194021 Leningrad (SU)

In this paper the capabilities of new methods of fusion alpha-particle diagnostics based on nuclear reactions are discussed. Particularly, the resonant capture reactions between confined fast alpha particles and low-Z artificial impurities in the plasma is examined. In this case, the intensity of the decay gamma rays is proportional to the alpha-particle concentration at resonance energy. Another method is based on Doppler shape analysis of the 4.44-MeV gamma-ray spectra from the {sup 9}Be({alpha}, n{sub 1}{gamma}) {sup 12}C reaction. Results of an in-beam study of this diagnostic reaction are given. Some questions concerning the gamma spectrometer, a collimator, and a radiation shield are discussed. Estimates of the reaction rates and signal values in the Tokamak Fusion test Reactor, T-14, Compact Ignition Tokamak (CIT), and International Thermonuclear Experimental Reactor (ITER) are presented. In conclusion, the use of gamma spectroscopy in the diagnostics fusion protons in deuterium-deuterium plasma is examined.

• OSTI ID: 5605558
• Journal Information: Fusion Technology; (United States), Vol. 18:4; ISSN 0748-1896
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALPHA PARTICLES
PLASMA DIAGNOSTICS
BERYLLIUM 9 TARGET
ALPHA REACTIONS
DEUTERIUM TARGET
DEUTERON REACTIONS
GAMMA SPECTROSCOPY
CARBON 12 REACTIONS
COLLIMATORS
COMPACT IGNITION TOKAMAK
FAST MAGNETOACOUSTIC WAVES
GAMMA SPECTRA
ITER TOKAMAK
MEV RANGE 01-10
NEUTRON EMISSION
PLASMA CONFINEMENT
PLASMA IMPURITIES
TEST REACTORS
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CLOSED PLASMA DEVICES
CONFINEMENT
EMISSION
ENERGY RANGE
HEAVY ION REACTIONS
HYDROMAGNETIC WAVES
IMPURITIES
MAGNETOACOUSTIC WAVES
MEV RANGE
NUCLEAR REACTIONS
REACTORS
RESEARCH AND TEST REACTORS
SPECTRA
SPECTROSCOPY
TARGETS
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS
700320* - Plasma Diagnostic Techniques & Instrumentation- (1992-)
700440 - Fusion Technology- Power Supplies
Energy Storage- (1992-)
700330 - Plasma Kinetics
Transport
& Impurities- (1992-)
700350 - Plasma Production
Heating
Current Drive
& Interactions- (1992-)