Title :
Progress in CsI wire chamber imaging photomultipliers and single electron counters
Author :
Breskin, A. ; Chechik, R. ; Dangendorf, V. ; Malamud, G. ; Gordon, A.S. ; Pansky, A. ; Vartsky, D.
Author_Institution :
Dept. of Phys., Weizmann Inst. of Sci., Rehovot, Israel
fDate :
4/1/1991 12:00:00 AM
Abstract :
Electrons photoproduced by UV photons on a CsI photocathode or deposited by ionizing particles and ultrasoft X-rays in low-pressure gas media can be efficiently detected in low-pressure multistep avalanche electron multipliers. A solid photocathode avalanche chamber (SPAC) imaging photomultiplier was coupled to a Xe-filled gas scintillation detector. Its performance when exposed to 60-keV X-rays is presented, and the stability of the CsI photocathode is discussed in detail. The latest experimental results from primary ionization cluster counting of charged particles and ultrasoft X-rays are presented. UV-laser-induced ionization and Monte Carlo simulations are used to study the processes involved
Keywords :
Monte Carlo methods; X-ray detection and measurement; ionisation chambers; photomultipliers; scintillation counters; CsI; Monte Carlo simulations; SPAC; UV photons; UV-laser-induced ionization; Xe-filled gas scintillation detector; ionizing particles; low-pressure gas media; low-pressure multistep avalanche electron multipliers; photocathode; primary ionization cluster counting; single electron counters; solid photocathode avalanche chamber; ultrasoft X-rays; wire chamber imaging photomultipliers; Cathodes; Electron multipliers; Ionization; Optical imaging; Photomultipliers; Solid scintillation detectors; Stability; Wire; X-ray detection; X-ray detectors;
Journal_Title :
Nuclear Science, IEEE Transactions on
