Space-Charge Effects in the Gas Detector

Ryutov, D ; Hau-Riege, S ; Bionta, R

关键词: AFTERGLOW;    APERTURES;    ELECTRONS;    MONITORS;    PHOTOLUMINESCENCE;    PLASMA;    SPACE CHARGE;   

DOI  :  10.2172/922109
RP-ID  :  UCRL-TR-234930
PID  :  OSTI ID: 922109
Others  :  TRN: US0802171

美国|英语

来源: SciTech Connect

【 摘 要 】

Discussion of space-charge effects in a photoluminescence cell that will be used as a non-disruptive total energy monitor at the LCLS facility is presented. Regimes where primary photoelectrons will be confined within the X-ray beam aperture are identified. Effects of the space-charge on the further evolution of the electron and ion populations are discussed. Parameters of the afterglow plasma are evaluated. Conditions under which the detector output will be proportional to the pulse energy are defined.