Title of article
Investigation and development of microchannel plate phototubes
Author/Authors
Barnyakov، نويسنده , , A.Yu. and Barnyakov، نويسنده , , M.Yu. and Barutkin، نويسنده , , V.V. and Bobrovnikov، نويسنده , , V.S. and Buzykaev، نويسنده , , A.R. and Gulevich، نويسنده , , V.V. and Kononov، نويسنده , , S.A. and Kravchenko، نويسنده , , E.A. and Onuchin، نويسنده , , A.P. and Tsigankov، نويسنده , , D.A.، نويسنده ,
Pages
4
From page
404
To page
407
Abstract
The development of photomultiplier tubes (PMTs) with microchannel plates (MCPs) in Novosibirsk began 10 years ago. PMT based on MCP is compact, has a high time resolution and can work in a strong magnetic field. Eighty such PMTs have been working in ASHIPH counters of the KEDR detector since 2003. Now we are focusing on the MCP PMT lifetime improvement. It was shown that the photocathode lifetime cannot be expressed unambiguously in units of the collected anode charge. Two new models of PMTs were developed: PMT with the photocathode protective layer and PMT with three MCPs. The comparison of the photocathode aging of both new and one old models has been done.
Keywords
Aging effect , Cherenkov counters , MCP PMT , Photocathode lifetime
Journal title
Astroparticle Physics
Record number
2027784
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