Array of HgI2 detectors on the HL-1M Tokamak

Details Array of HgI2 detectors on the HL-1M Tokamak Array of HgI2 detectors on the HL-1M Tokamak

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004rsci...75.2513j&link_type=abstract

Review of Scientific Instruments, Volume 75, Issue 8, pp. 2513-2516 (2004).

Physics

1

Tokamaks, Spherical Tokamaks, Sensors, Remote Sensing, X-Ray And Gamma-Ray Measurements, Plasma Heating By Radio-Frequency Fields, Icr, Icp, Helicons, Solid-State Detectors, X- And Gamma-Ray Sources, Mirrors, Gratings, And Detectors

Scientific paper

An array of seven HgI2 detectors, which are suitable for detecting the time and space evolution of the x-ray radiation flux and energy spectrum in the range between 15-150 keV relevant to suprathermal electron and runaway electrons was installed on the HL-1M Tokamak (R0=1.02 m, a=0.26 m, BT=3.5 T, IP=350 kA, ne=3-6×1013 cm-3, Te=0.8-1.5 keV). Our iodine mercury (HgI2) semiconductor detectors possess the properties of low noise level, high detection efficiency, high counting rate, high energy resolution, and working at room temperature. Every detector is a high quality, high purity detector cut out of a big size HgI2 crystal. A new type of multichannel energy spectrometer with a high speed acquisition system was developed. Therefore, the spatial and temporal distribution of the x-ray energy spectrum induced by thermal and superthermal electrons can be observed.

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