Thumbnail
Access Restriction
Open

Author Seltzman, A. H. ♦ Anderson, J. K. ♦ DuBois, A. M. ♦ Almagri, A. ♦ Forest, C. B.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ♦ ABSORPTION ♦ BEAMS ♦ BERNSTEIN MODE ♦ CADMIUM TELLURIDES ♦ CAMERAS ♦ CYCLOTRONS ♦ ELECTRON CYCLOTRON-RESONANCE ♦ ELECTRON SPECTRA ♦ ELECTRONS ♦ EMISSION ♦ HARD X RADIATION ♦ HEATING ♦ PLASMA WAVES ♦ REVERSED-FIELD PINCH DEVICES ♦ REVERSE-FIELD PINCH ♦ TOMOGRAPHY ♦ ZINC TELLURIDES
Abstract A pulse height analyzing x-ray tomography system has been developed to detect x-rays from electron Bernstein wave heated electrons in the Madison symmetric torus reversed field pinch (RFP). Cadmium zinc telluride detectors are arranged in a parallel beam array with two orthogonal multi-chord detectors that may be used for tomography. In addition a repositionable 16 channel fan beam camera with a 55° field of view is used to augment data collected with the Hard X-ray array. The chord integrated signals identify target emission from RF heated electrons striking a limiter located 12° toroidally away from the RF injection port. This provides information on heated electron spectrum, transport, and diffusion. RF induced x-ray emission from absorption on harmonic electron cyclotron resonances in low current (<250 kA) RFP discharges has been observed.
ISSN 00346748
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-11-15
Publisher Place United States
Journal Review of Scientific Instruments
Volume Number 87
Issue Number 11


Open content in new tab

   Open content in new tab