Design and calibration of a fast‐time resolution charge exchange analyzer

A five channel, fast time resolution, scanning charge exchange analyzer has been developed for the Madison Symmetric Torus (MST). The analyzer consists of an iron vacuum vessel, a gas stripping cell, an electrostatic bending field, and five continuous electron multiplier detectors. The incident neut...

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Bibliographic Details
Published in:Review of Scientific Instruments 1992-10, Vol.63 (10), p.4527-4529
Main Authors: Scime, Earl, Hokin, Samuel
Format: Article
Language:English
Subjects:
Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma diagnostic techniques and instrumentation
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Summary:A five channel, fast time resolution, scanning charge exchange analyzer has been developed for the Madison Symmetric Torus (MST). The analyzer consists of an iron vacuum vessel, a gas stripping cell, an electrostatic bending field, and five continuous electron multiplier detectors. The incident neutral flux and operation of the detectors in current mode limits the time resolution of the analyzer to 10 μs. The analyzer was absolutely calibrated over the energy range of interest (500–2000 eV) with a H+ beam, so that the charge exchange power loss could also be measured. The analyzer can be swiveled on a shot‐to‐shot basis for measurements of T i (r), where 0.3
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1143710