Development of a He{sup -} and He{sup 0} beam source for alpha particle measurement in a burning plasma

Journal Article · Wed Feb 15 04:00:00 EST 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3672113· OSTI ID:22075526

Tanaka, N; Sasao, M; Terai, K; Okamoto, A; Kitajima, S ^[1]; Yamaoka, H ^[2]; Wada, M ^[3]

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1. Tohoku University, Aoba, Sendai 980-8579 (Japan)
2. Harima Institute, RIKEN, Sayo, Hyogo 679-5148 (Japan)
3. Doshisha University, Kyotanabe, Kyoto 610-0321 (Japan)

Proof of principle experiments of neutral helium beam production for alpha particle diagnostics was carried out on a test stand. Negative helium ions were produced in the Li charge exchange cell, in which stable and long time operation was possible. He{sup -} beam was accelerated to 157 keV. Finally, He{sup 0} beam was successfully produced after the flight in the drift-tube through the auto-electron-detachment process from He{sup -} to He{sup 0}. A neutral beam detector using a pyroelectric device was also developed to measure He{sup 0} beam intensity. The metastable component in the neutral helium beam was found to be less than 2%.

• OSTI ID: 22075526
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 2 Vol. 83; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALPHA PARTICLES
BEAM PRODUCTION
CHARGE EXCHANGE
DRIFT TUBES
ELECTRON DETACHMENT
HELIUM
HELIUM IONS
KEV RANGE
LITHIUM
PARTICLE BEAMS
PLASMA
PLASMA DIAGNOSTICS