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Title: Large area planar photocathode for MCP-based photodetectors

Abstract

We report on the principle, design, fabrication, and characterization of a large-area planar bialkali photocathode. Herein, sequential photocathode growth process was investigated, and the growth parameters, especially the initial antimony layer thickness, were optimized. The source arrangement and configuration were also simulated and the preferred configuration was chosen for numerical and experimental studies. Photocathode with average QE of 18% and activation area of similar to 40 square inches was experimentally demonstrated, making it a candidate for MCP-based photodetector applications. Further improvements were also discussed to enhance the uniformity and QE value of the photocathodes.

Authors:
 [1];  [1];  [1];  [1];  [2];  [1];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1604977
Alternate Identifier(s):
OSTI ID: 1703471
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 955; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; bialkali antimonide; large-area planar photodetector; microchannel plate; photocathode; photomultiplier tube

Citation Formats

Xie, Junqi, Attenkofer, Klaus, Demarteau, Marcel, Paramonov, Alexander, Ronzhin, Anatoly, Wagner, Robert, and Yusof, Zikri. Large area planar photocathode for MCP-based photodetectors. United States: N. p., 2019. Web. https://doi.org/10.1016/j.nima.2019.163234.
Xie, Junqi, Attenkofer, Klaus, Demarteau, Marcel, Paramonov, Alexander, Ronzhin, Anatoly, Wagner, Robert, & Yusof, Zikri. Large area planar photocathode for MCP-based photodetectors. United States. https://doi.org/10.1016/j.nima.2019.163234
Xie, Junqi, Attenkofer, Klaus, Demarteau, Marcel, Paramonov, Alexander, Ronzhin, Anatoly, Wagner, Robert, and Yusof, Zikri. Fri . "Large area planar photocathode for MCP-based photodetectors". United States. https://doi.org/10.1016/j.nima.2019.163234. https://www.osti.gov/servlets/purl/1604977.
@article{osti_1604977,
title = {Large area planar photocathode for MCP-based photodetectors},
author = {Xie, Junqi and Attenkofer, Klaus and Demarteau, Marcel and Paramonov, Alexander and Ronzhin, Anatoly and Wagner, Robert and Yusof, Zikri},
abstractNote = {We report on the principle, design, fabrication, and characterization of a large-area planar bialkali photocathode. Herein, sequential photocathode growth process was investigated, and the growth parameters, especially the initial antimony layer thickness, were optimized. The source arrangement and configuration were also simulated and the preferred configuration was chosen for numerical and experimental studies. Photocathode with average QE of 18% and activation area of similar to 40 square inches was experimentally demonstrated, making it a candidate for MCP-based photodetector applications. Further improvements were also discussed to enhance the uniformity and QE value of the photocathodes.},
doi = {10.1016/j.nima.2019.163234},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 955,
place = {United States},
year = {2019},
month = {12}
}