Title :
New ideas in CsI-based photon detectors: wire photomultipliers and protection of the photocathodes
Author :
Breskin, A. ; Buzulutskov, A. ; Chechik, R.
Author_Institution :
Dept. of Particle Phys., Weizmann Inst. of Sci., Rehovot, Israel
fDate :
8/1/1995 12:00:00 AM
Abstract :
We discuss the idea of a vacuum or gaseous photomultiplier with a CsI-coated wire photocathode. It benefits from an electric field enhanced quantum efficiency. We present a method for protecting air-sensitive photocathodes with thin dielectric film coating. Results of CsI coated with thin LiF and MgF2 films are shown. The protection of other UV and visible photocathodes is discussed
Keywords :
caesium compounds; gamma-ray detection; photocathodes; photomultipliers; solid scintillation detectors; CsI-LiF; CsI-MgF2; CsI-based photon detectors; CsI-coated wire photocathode; UV photocathodes; air-sensitive photocathodes; electric field enhanced quantum efficiency; gaseous photomultiplier; photocathodes protection; thin dielectric film coating; vacuum photomultiplier; visible photocathodes; wire photomultipliers; Cathodes; Coatings; Detectors; Dielectric thin films; Electron emission; Photomultipliers; Protection; Solids; Stability; Wire;
Journal_Title :
Nuclear Science, IEEE Transactions on
