2016年11月
Development of beam emission spectroscopy for turbulence transport study in Heliotron J
REVIEW OF SCIENTIFIC INSTRUMENTS
- 巻
- 87
- 号
- 11
- 開始ページ
- 11E519
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1063/1.4959949
- 出版者・発行元
- AMER INST PHYSICS
This paper describes the development study of the beam emission spectroscopy (BES) for the turbulent transport study in Heliotron J. Modification of the sightlines (10 x 4 for edge and 10 x 2 for edge) enables us to obtain 2-dimensional BES imaging. The cooling effect on the reduction in the electrical noise of avalanche photodiode (APD) assembly has been investigated using a refrigerant cooling system. When the temperature of the APD element has set to be -20 degrees C, the electrical noise can be reduced more than 50%. The measurement error of the phase difference in the case of low signal level has been tested by two light-emitting diode lamps. The APD cooling has an effect to improve the measurement error at the low signal level of APD. Published by AIP Publishing.
- リンク情報
- ID情報
-
- DOI : 10.1063/1.4959949
- ISSN : 0034-6748
- eISSN : 1089-7623
- PubMed ID : 27910398
- Web of Science ID : WOS:000390242300234