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Study of the THGEM detector with a reflective CsI photocathode |
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| Authors: | LIU Hong-Bang ZHENG Yang-Heng XIE Yi-Gang L Jun-Guang ZHOU Li YU So-Xiang ZHANG Ai-Wu AN Zheng-Hua XIE Yu-Guang ZHANG Dong ZHENG Zhi-Peng |
| Affiliation: | 1. Graduate University of Chinese Academy of Sciences, Beijing 100049, China ;Guangxi University, Naning 530004, China 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China ;Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 4. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 5. Beijing Nuclear Instrument Factory, Beijing 100176, China |
| Abstract: | The THGEM detector without and with a CsI has been tested successfully. The optimal parame- ters of THGEM have been determined from eight samples. The UV photoelectric effect of the CsI photocathode is observed. The changing tendency related to the extraction efficiency (ε<,extr>) versus the extraction electric field is measured, and several electric fields influencing the anode current are adjusted to adapt to the THGEM detector with a reflective CsI photocathode. |
| Keywords: | THGEM CsI photocathode UV |
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