PMTS OF SUPERIOR TIME RESOLUTION, WIDE DYNAMIC-RANGE, AND LOW CROSS-TALK MULTIANODE PMTS

In the field of high energy physics (HEP) experiments, the requirement s to detector components are becoming more stringent due to the higher rate environment and higher energy accelerator available in the near future. Among various detectors, photon detectors are well known to be superior in terms of response time and dynamic range. A photomultipli er tube (PMT) is one of such devices with very high gain and low noise performance. Recently, we have developed a new type of PMT with fine mesh (FM) dynodes [1-7] who have exceptional performance in time respo nse and linearity with high gain even under magnetic fields. The PMTs are available not only as conventional single-anode, but as multi-anod e reads-out [8-11] with very low cross-talk. In this paper, their char acteristics are discussed in detail.