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The gas proportional scintillation counter/microstrip gas chamber hybrid detector
Freitas, D. S. A. P.; Veloso, J. F. C. A.; Monteiro, C. M. B.; Santos, J. M. F. dos; Conde, C. A. N.The gas proportional scintillation counter/microstrip gas chamber (GPSC/MSGC) hybrid detector for X-ray spectrometry is described. The detector uses a CsI-coated microstrip plate placed in direct contact with the gas-filling as the photosensor readout for the GPSC scintillation substituting for the photomultiplier tube (PMT). Usable photosensor maximum gain is limited by optical positive feedback due to the add...
The gas proportional scintillation counter/microstrip gas chamber hybrid detect...
Monteiro, C. M. B.; Veloso, J. F. C. A.; Freitas, D. S. A. P.; Santos, J. M. F. dos; Conde, C. A. N.We present the results of a study of an argon gas proportional scintillation counter instrumented with a CsI-coated microstrip plate placed in the argon envelope. Although the measured light amplification gain and the photoelectron collection efficiency are 70% and 30-40% higher than those obtained in a similar xenon detector, the charge gain achieved in argon for the avalanches produced by the photoelectrons a...
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