How to Cool Light Detectors and Light Sources Simultaneously

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In the field of low level light detection, especially in hyperfine structure investigations, there are two main cooling problems: the cooling of the light source (usually a hollow cathode lamp (HCL)) in order to reduce the Doppler width, and the cooling of the light detector (e.g., a photomultiplier (PM)) to reduce thermal noise, especially the dark-current.

Keywords: Hollow cathode; Line width; Photomultiplier

Document Type: Short Communication


Affiliations: Zentralinsitut für Biomedizinische Technik, Universität Erlangen-Nürnberg 8520 Erlangen, Turnstrasse 5, and Optisches Institut, Technische Universität Berlin, 1000 Berlin 12, Strasse des 17. Juni 135

Publication date: March 1, 1978

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