Research On MSP-PMT Technology

Microsphere plate(MSP) is a novel electron multiplier , as dynode of photoultiplier(PMT), MSP has many merits suah as high gain , no ion-feedback and simple fabrication technology,and so on .In this paper,on the basis of discussing the structures,principle and properties of MSP-PMT,we mainly analyse MSP-PMT and point out the key technology of it is to fabricate high performance MSP. So we stess to study the fabricating technology of MSP and do many experiments,point out the key technology for MSP is how to obtain glass beads with narrow range in diameter and how to sinter the glass beads with a sufficient pylome . Factors affect thegradating technology and sintering process along with solution to them is presented. We had fabricated MSP body which can meets the application demands. We also made some experiments on the formations of second electron emission layer and surface electrodes.At last,we carry out design and analysis for MSP-PMT and pointed out MSP-PMT not only has the same excellent performance as MCP-PMT ,but also the fabrication process is simple,the fabrication cost is low and the ratio of performance to cost is high ,so MSP-PMT is a promising dim-light detector.