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

Journal Article · Wed Jan 01 04:00:00 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]

---

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 Laboratory
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 451722
• Report Number(s): CONF-960543--
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 1 Vol. 68; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

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