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Photo-Electron guns require vacuum at the lowest
limits of the Ultra-High Vacuum (UHV) range, below 1x10-11 Torr, in order to maximize quantum efficiency and
cathode lifetime. The vacuum levels required for the electron
gun exceed the requirements of any other portion of the CEBAF accelerator.
Extensive research has been performed within the Electron Gun Group to
produce this UHV environment. This research includes:
- Bake temperature vs.
ultimate pressure studies
- Material Outgassing rate studies
- Material coating
studies
- Neg materal
selection and geometry studies
- Ion pump ultimate
pressure studies
SAES
getter quick activation reference
SAES WP
module manual
SAES GP50
/ MK manual
GP50
heater pinout
SAES
GP100/GP500 manual
SAES
heater manual
Tech
note: RGA and extractor gauge quick usage guide
Extractor gauge naming, cal factors and emission
currents .pdf .xlsx
SRG calibration factors: 191535=1.017 ; xxxxxx=1.021 ;
192066 = 0.961
SAES
alkali metal dispenser manual
RGA software: on
M drive, inj_group, RGA software folder
Extractor
gauge naming
Gamma SPC manual
Gamma 45 L/s
pump 25 L/s pump
SRG2_manual.pdf
Solo Temperature Controller software
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manual.pdf setup.docx
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