Imaging of large-area microchannel plates using phosphor screens

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

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

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 cm2) 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.

Original languageEnglish
Article numberP11011
JournalJournal of Instrumentation
Volume9
Issue number11
DOIs
StatePublished - Nov 1 2014
Externally publishedYes

Funding

FundersFunder number
National Natural Science Foundation of China11304374

    Keywords

    • Photon detectors for UV
    • Secondary electron emitters and dynodes and their production
    • Timing detectors
    • Visible and IR photons (vacuum) (photomultipliers, HPDs, others)

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