Title of article
Performance studies of microchannel plate PMTs in high magnetic fields
Author/Authors
Lehmann، نويسنده , , A. and Britting، نويسنده , , A. and Eyrich، نويسنده , , W. and Pizzolotto، نويسنده , , C. and Teufel، نويسنده , , Luca A. van Duren، نويسنده , , M. and Fِhl، نويسنده , , K. and Hoek، نويسنده , , M. and Lu، نويسنده , , S. and Schepers، نويسنده , , Christian G. and Seitz، نويسنده , , B. and Sfienti، نويسنده , , C.، نويسنده ,
Pages
4
From page
173
To page
176
Abstract
Microchannel plate (MCP) photomultipliers (PMTs) are attractive photon sensors for the PANDA DIRC. The gain and the time resolution of different types of MCP-PMTs were studied as a function of the magnetic field and of the field orientation. It was found that for an efficient single photon detection a pore diameter of 10 μ m or less will be needed in the 2 T magnetic field of PANDA. Both gain and time resolution are best with a pore size of 6 μ m . In contrast to the gain the time resolution shows only a weak dependence on the magnetic field and its orientation. The best transit time resolution for single photons was evaluated to be σ ≈ 20 ps with no magnetic field applied.
Keywords
Magnetic field , PANDA , MCP-PMT , Photodetectors , Single photon , gain , Time resolution
Journal title
Astroparticle Physics
Record number
2032753
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