Space-Charge Effects in a Gas Detector

Ryutov, D.D.

关键词: AFTERGLOW;    APERTURES;    ELECTRONS;    BEAM MONITORS;    PHOTOLUMINESCENCE;    SPACE CHARGE;    LINEAR ACCELERATORS;    LIGHT SOURCES;    FREE ELECTRON LASERS;    GASES;    DETECTION XFEL;   

DOI  :  10.2172/993724
RP-ID  :  SLAC-TN-10-043
PID  :  OSTI ID: 993724
Others  :  TRN: US1100050

学科分类：核物理和高能物理

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 nondisruptive 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.