Measurement of Cherenkov photons with silicon photomultipliers
Measurement of Cherenkov photons with silicon photomultipliers
复制标题
用硅光电倍增管测量切伦科夫光子
DOI：
10.1016/j.nima.2008.05.040
复制
发表时间：
2008
影响因子：
1.4
通讯作者：
M. Yamaoka
中科院分区：
文献类型：
--
作者：
S. Korpar;R. Dolenec;K. Hara;T. Iijima;P. Križan;Y. Mazuka;R. Pestotnik;A. Stanovnik;M. Yamaoka
除了它们的其他优点之外，硅光电倍增管（SiPM）对磁场不敏感，因此它们作为大型磁谱仪内环形成像切伦科夫计数器的光子探测器将是有吸引力的。鉴于贝儿光谱仪的粒子识别系统的预见升级，我们已经调查了这些新的光子探测器提供的可能性。首次用SiPM探测到气凝胶辐射器中宇宙射线粒子发射的切伦科夫光子。估计和测试表明，聚光器可以提高检测效率，从而显示基于SiPM的RICH检测器的前景。
In addition to their other advantages, silicon photomultipliers (SiPMs) are insensitive to magnetic fields, so they would be attractive as photon detectors for ring imaging Cherenkov counters inside large magnetic spectrometers. In view of the foreseen upgrade of the particle identification system of the Belle spectrometer, we have investigated the possibilities offered by these new photon detectors. Cherenkov photons emitted by cosmic ray particles in an aerogel radiator have been detected with SiPMs for the first time. Estimates and tests show that light concentrators may improve the detection efficiency, thus showing promise for an SiPM based RICH detector.