Investigating the performance of an ion luminescence probe as a multichannel fast-ion energy spectrometer using pulse height analysis

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

DOI:https://doi.org/10.1063/1.4733572· OSTI ID:22093803

Zurro, B.; Baciero, A. ^[1]; Jimenez-Rey, D. ^[2]; Rodriguez-Barquero, L.; Crespo, M. T. ^[3]

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1. Laboratorio Nacional de Fusion, Asociacion Euratom-CIEMAT, Madrid (Spain)
2. Centro de Microanalisis de Materiales, Universidad Autonoma de Madrid, Madrid (Spain)
3. Laboratorio de Metrologia de Radiaciones lonizantes, CIEMAT, Madrid (Spain)

We investigate the capability of a fast-ion luminescent probe to operate as a pulse height ion energy analyzer. An existing high sensitivity system has been reconfigured as a single channel ion detector with an amplifier to give a bandwidth comparable to the phosphor response time. A digital pulse processing method has been developed to determine pulse heights from the detector signal so as to obtain time-resolved information on the ion energy distribution of the plasma ions lost to the wall of the TJ-II stellarator. Finally, the potential of this approach for magnetic confined fusion plasmas is evaluated by studying representative TJ-II discharges.

• OSTI ID: 22093803
• 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
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPLIFIERS
ENERGY SPECTRA
IONS
LUMINESCENCE
PERFORMANCE
PHOSPHORS
PLASMA CONFINEMENT
PLASMA DIAGNOSTICS
PULSES
SENSITIVITY
SPECTROMETERS
STELLARATORS
TIME RESOLUTION