Development and first tests of GEM-Like detectors with resistive electrodes
2007 (English)In: IEEE Transactions on Nuclear Science, ISSN 0018-9499, E-ISSN 1558-1578, Vol. 54, no 5, 1784-1791 p.Article in journal (Refereed) Published
We have developed and tested several prototypes of GEM-like detectors with electrodes coated with resistive layers or completely made of resistive materials. These detectors can operate stably at gains close to 10(5). The resistive layers limit the energy of discharges appearing at higher gains thus making the detectors very robust. We demonstrated that the cathodes of some of these detectors could be coated by CsI or SbCs layers to enhance the detection efficiency for the UV and visible photons. We also discovered that such detectors can operate stably in the cascade mode and high overall gains (similar to 10(6)) are reachable. Applications in several areas, for example in RICH or in noble liquid TPCs are therefore possible. The first results from the detection of UV photons at room and cryogenic temperatures will be given.
Place, publisher, year, edition, pages
2007. Vol. 54, no 5, 1784-1791 p.
CsI photocathode, GEM, noble liquids TPC, photosensitive gaseous detectors, primary scintillation light, microstrip gas counters, cryogenic temperatures, csi photocathodes, operation, photomultipliers, multipliers, performance, particles
IdentifiersURN: urn:nbn:se:kth:diva-17054DOI: 10.1109/tns.2007.905160ISI: 000250313700012ScopusID: 2-s2.0-35348990412OAI: oai:DiVA.org:kth-17054DiVA: diva2:335097
QC 201005252010-08-052010-08-05Bibliographically approved