ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
A simple circuit is described which closes a shutter on the optical input of a photon counting detector when the photon count rate exceeds a preset level. The circuit utilizes common integrated circuits, and is designed to protect microchannel plate photomultipliers from excess light exposure.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1144794