Imaging of large-area microchannel plates using phosphor screens

Journal Article · Sat Nov 01 00:00:00 EDT 2014 · Journal of Instrumentation

DOI:https://doi.org/10.1088/1748-0221/9/11/P11011· OSTI ID:1395999

Wang, X.; Setru, S. U.; Xie, J.; Mane, A.; Demarteau, M.; Wagner, R.

A testing system was built, using UV illumination at 254 nm and a cathodoluminescent phosphor screen, to measure the gain uniformity of large area (20 x 20 cm(2)) microchannel plates. The phosphor screen image is captured with a wide-angle CMOS digital camera (4032 x 3024 pixels) and analyzed. First a reference MCP is illuminated and the generated phosphor screen image is captured with a CCD camera. In a second step, another image is captured with the MCP under test inserted between the reference MCP and the phosphor screen. The ratio of the two images is analyzed and provides a quantitative measure of the relative gain uniformity of the MCP under test.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science - Office of High Energy Physics; USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NNSFC)
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1395999
• Journal Information: Journal of Instrumentation, Vol. 9, Issue 11; ISSN 1748-0221
• Publisher: Institute of Physics (IOP)
• Country of Publication: United States
• Language: English

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