Performance studies of microchannel plate PMTs in high magnetic fields

详细信息    查看全文

• 作者：A. Lehmann ; A. Britting ; W. Eyrich ; C. Pizzolotto ; A. Teufel ; M. Dü ; ren ; K. Fö ; hl ; M. Hoek ; S. Lu ; G. Schepers ; B. Seitz ; C. Sfienti
• 关键词：PANDA ; Photodetectors ; MCP-PMT ; Magnetic field ; Single photon ; Gain ; Time resolution
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2008
• 出版时间：21 September 2008
• 年：2008
• 卷：595
• 期：1
• 页码：173-176
• 全文大小：327 K

文摘

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 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 . 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 with no magnetic field applied.