Calibration of an advanced neutral particle analyzer for the Madison Symmetric Torus reversed-field pinch

Journal Article · Mon Oct 15 00:00:00 EDT 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4729493· OSTI ID:22093850

Reusch, J. A.; Anderson, J. K.; Eilerman, S. ^[1]; Belykh, V.; Polosatkin, S. ^[2]; Liu, D. ^[3]; Fiksel, G. ^[4]

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1. University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)
2. Budker Institute of Nuclear Physics SB RAS, Novosibirsk (Russian Federation)
3. University of California-Irvine, Irvine, California 92697 (United States)
4. University of Rochester, Rochester, New York 14623 (United States)

A new E Parallel-To B neutral particle analyzer, which has recently been installed on Madison Symmetric Torus (MST) reversed-field pinch (RFP), has now been calibrated, allowing the measurement of the fast ion density and energy distribution. This diagnostic, dubbed the advanced neutral particle analyzer (ANPA), can simultaneously produce time resolved measurements of the efflux of both hydrogen and deuterium ions from the plasma over a 35 keV energy range with an energy resolution of 2-4 keV and a time resolution of 10 {mu}s. These capabilities are needed to measure both majority ion heating that occurs during magnetic reconnection events in MST and the behavior of the fast ions from the 1 MW hydrogen neutral beam injector on MST. Calibration of the ANPA was performed using a custom ion source that resides in the flight tube between the MST and the ANPA. In this work, the ANPA will be described, the calibration procedure and results will be discussed, and initial measurements of the time evolution of 25 keV neutral beam injection-born fast ions will be presented.

• OSTI ID: 22093850
• Journal Information: Review of Scientific Instruments, Vol. 83, Issue 10; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BEAMS
CALIBRATION
DEUTERIUM IONS
ENERGY RESOLUTION
ENERGY SPECTRA
ION DENSITY
ION SOURCES
KEV RANGE 10-100
MAGNETIC RECONNECTION
NEUTRAL PARTICLE ANALYZERS
PLASMA
PLASMA BEAM INJECTION
PLASMA DENSITY
PLASMA DIAGNOSTICS
REVERSED-FIELD PINCH DEVICES
REVERSE-FIELD PINCH
SYMMETRY
TIME RESOLUTION