Progress toward a microsecond duration, repetitively pulsed, intense-ion beam for active spectroscopic measurements on ITER

Journal Article · Wed Jan 01 00:00:00 EST 1997 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1147862· OSTI ID:451722

Davis, H A; Olson, J C; Reass, W A; Barnes, C W; Bartsch, R R ^[1]; Coates, D M; Hunt, J W; Schleinitz, H M ^[2]; Lovberg, R H ^[3]; Greenly, J B ^[4]

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1. Mail Stop E526, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
2. DuPont Central Research and Development, Wilmington, Delaware 19880 (United States)
3. University of California, San Diego, California 92093 (United States)
4. Laboratory of Plasma Studies, Cornell University, Ithaca, New York 14853 (United States)

We describe the design of an intense, pulsed, repetitive, neutral beam based on magnetically insulated diode technology for injection into ITER for spectroscopic measurements of thermalizing alpha particle and thermal helium density profiles, ion temperature, plasma rotation, and low Z impurity concentrations throughout the confinement region. The beam is being developed to enhance low signal-to-noise ratios expected with conventional steady-state ion beams because of severe beam attenuation and intense bremsstrahlung emission. A 5 GW (e.g., 100 keV, 50 kA) 1 {mu}s duration beam would increase the charge exchange recombination signal by 10{sup 3} compared to a conventional 5 MW beam. {copyright} {ital 1997 American Institute of Physics.}

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 451722
• Report Number(s): CONF-960543-; ISSN 0034-6748; TRN: 97:006120
• Journal Information: Review of Scientific Instruments, Vol. 68, Issue 1; Conference: 11. annual high-temperature plasma diagnostics conference, Monterey, CA (United States), 12-16 May 1996; Other Information: PBD: Jan 1997
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
ITER TOKAMAK
ION PROBES
NEUTRAL ATOM BEAM INJECTION
PLASMA DIAGNOSTICS
TOKAMAK DEVICES
ION BEAMS
PLASMA DENSITY
THERMIONIC DIODES
BEAM-PLASMA SYSTEMS
PLASMA RADIAL PROFILES
PLASMA IMPURITIES
ION TEMPERATURE
KEV RANGE 10-100
CHARGE EXCHANGE
VISIBLE SPECTRA
SIGNAL-TO-NOISE RATIO
RECOMBINATION