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Dear baojun yan,

The submission of your abstract has been successfully processed.

Abstract submitted: https://indico.cern.ch/userAbstracts.py?confId=192695.

Status of your abstract: https://indico.cern.ch/abstractDisplay.py?abstractId=122&confId=192695.

See below a detailed summary of your submitted abstract:

Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics

Submitted by: YAN, Baojun

Submitted on: 31 January 2014 08:00

Title: A Kind of Electrostatic Focusing MCP-PMT

Abstract content In order to meet the needs of JUNO, we design and manufacture a kind of electrostatic focusing MCP-PMT which has very low radioactive background by introducing pure raw materials and controlling melting and artificial fine blowing process. This MCP-PMT has high photon detection efficiency which results from using transmission photocathode and reflection photocathode simultaneously, and the total quantum efficiency reaches approximately 30%. Good design of focusing electrode and appropriate distribution of voltage can ensure 95% photoelectrons entering the surface of MCP. The electron multiplication system consists of 4 MCPs that each of the two pieces of MCP is a component, by optimizing the voltages of each MCP and the gaps between MCPs, the gain obtained is greater than 107 and the peak to valley ratio of single photoelectron is about 2. For anode optimization, we design two kinds of configuration to reduce signal ringing, the one is metal mesh and plate, the other is micro-strip line. Finally, by using signal cable which impedance matches the anode, we obtain very single photoelectron signal.

Summary

Primary Authors: Prof. LIU, Shulin (Institute of High Energy Physics, Chinese Academy of Sciences, Rd. Yuquan 19B, 100049, Beijing, China) liusl@ihep.ac.cn Prof. WANG, Yifang (Institute of High Energy Physics, Chinese Academy of Sciences, Rd. Yuquan 19B, 100049, Beijing, China) yfwang@ihep.ac.cn

Co-authors: Prof. ZHAO, Tianchi (Institute of High Energy Physics, Chinese Academy of Sciences, Rd. Yuquan 19B, 100049, Beijing, China) tianchi@u.washington.edu Prof. SI, Shuguang (Nanjing Branch, North Night Vision Technology CO., Ltd, No. 2, Kangping street, 211011, Nanjing, China) sishuguang@126.com Dr. LIU, Hulin (Xi’an Institute of Optics and Precision Mechanics, No.17, Information Avenue, 710119, Xi'an, China) haozian_cn@163.com Dr. QIAN, Sen (Institute of High Energy Physics, Chinese Academy of Sciences, Rd. Yuquan 19B, 100049, Beijing, China) qians@ihep.ac.cn Prof. SUN, Jianning (Nanjing Branch, North Night Vision Technology CO., Ltd, No. 2, Kangping street, 211011, Nanjing, China) sjn@nvt.com.cn Prof. TIAN, Jinshou (Xi’an Institute of Optics and Precision Mechanics, No.17, Information Avenue, 710119, Xi'an, China) tianjs@opt.ac.cn Prof. ZHOU, Jianxun (Nanjing Branch, North Night Vision Technology CO., Ltd, No. 2, Kangping street, 211011, Nanjing, China) zhoujianxun@ihep.ac.cn Dr. CHEN, Ping (Xi’an Institute of Optics and Precision Mechanics, No.17, Information Avenue, 710119, Xi'an, China) chenping@ihep.ac.cn

Abstract presenters: Prof. LIU, Shulin

Track classification: Sensors: 1d) Photon Detectors Experiments: 2c) Detectors for neutrino physics

Presentation type: --not specified--

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