Abstract
There are various photoelectric detectors which can be used as photon counters in beam-foil spectroscopy over the wavelength range 50–1700 Å. In general several different detectors must be used to obtain a high and reproducible quantum efficiency with low background over this spectral range. Three groups of detectors will be discussed briefly. One group for use between about 1700 Å and 1100 Å includes sealed detectors having alkali-halide photocathodes and lithium-fluoride windows. The second group for use between 1200 Å and 100 Å includes windowless detectors having high work-function photocathodes. The third group includes gas-flow Geiger Müller counters with thin windows for use at wavelengths shorter than 200 Å. Emphasis will be placed on the operation of these detectors as photon counters having a well-defined counting plateau.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
