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Title: Space-Charge Effects in the Gas Detector

Technical Report ·
DOI:https://doi.org/10.2172/922109· OSTI ID:922109

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.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
922109
Report Number(s):
UCRL-TR-234930; TRN: US0802171
Country of Publication:
United States
Language:
English