Physics – Instrumentation and Detectors
Scientific paper
2005-02-07
Nucl.Instrum.Meth. A553 (2005) 30-34
Physics
Instrumentation and Detectors
Presented at the 5th International Workshop on RICH detectors Playa del Carmen, Mexico, November 2004
Scientific paper
10.1016/j.nima.2005.08.002
There are several applications which require high position resolution UV imaging. For these applications we have developed and successfully tested a new version of a 2D UV single photon imaging detector based on a microgap RPC. The main features of such a detectors is the high position resolution - 30 micron in digital form and the high quantum efficiency (1-8% in the spectral interval of 220-140 nm). Additionally, they are spark- protected and can operate without any feedback problems at high gains, close to a streamer mode. In attempts to extend the sensitivity of RPCs to longer wavelengths we have successfully tested the operation of the first sealed parallel-plate gaseous detectors with CsTe photocathodes. Finally, the comparison with other types of photosensitive detectors is given and possible fields of applications are identified.
Fonte P.
Francke Tom
Pavlopoulos N.
Peskov V.
Rodionov I.
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