Soft x-ray pulse height analyzer in the HT-7 tokamak

A new soft x-ray pulse height analyzer (PHA), based on a Silicon Drift Detector (SDD) linear array consisting of 15 SDD detectors, has been installed in the HT-7 tokamak. The energy resolution of 150–180 eV at photon energy of 6 keV is achieved for the SDD with Peltier cooling. The effective time...

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Veröffentlicht in:	Review of scientific instruments 2004-11, Vol.75 (11), p.4930-4933
Hauptverfasser:	Shi, Yuejiang, Chen, Zhongyong, Wan, Baonian, Lv, Bo, Hu, Liqun, Lin, Shiyao, Hu, Qinsheng, Qian, Jinping, Liu, Haiqing, Liu, Shengxia, Xu, Yucun, Shan, Jiafang, Li, Jiangang
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY COOLING ELECTRON TEMPERATURE ENERGY RESOLUTION EV RANGE 100-1000 HT-7 TOKAMAK ION TEMPERATURE KEV RANGE 01-10 PHOTONS PLASMA DIAGNOSTICS PLASMA IMPURITIES PULSES SI SEMICONDUCTOR DETECTORS SILICON SOFT X RADIATION SPATIAL RESOLUTION THERMONUCLEAR REACTORS
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Beschreibung
Zusammenfassung:	A new soft x-ray pulse height analyzer (PHA), based on a Silicon Drift Detector (SDD) linear array consisting of 15 SDD detectors, has been installed in the HT-7 tokamak. The energy resolution of 150–180 eV at photon energy of 6 keV is achieved for the SDD with Peltier cooling. The effective time response of the SDD PHA is 50 ms . The profiles of electron temperature and the intensity of metallic impurities can be obtained with a spatial resolution of 3 cm . The performance and first experimental results from the new PHA system are presented.
ISSN:	0034-6748 1089-7623
DOI:	10.1063/1.1808911