Study of capillary-based gaseous detectors
2004 (English)In: IEEE Transactions on Nuclear Science, ISSN 0018-9499, E-ISSN 1558-1578, Vol. 51, no 3, 952-959 p.Article in journal (Refereed) Published
We have studied gain versus voltage characteristics and position resolutions of multistep capillary plates (two or three capillary plates operating in a cascade), as well as capillary plates operating in a mode when the main amplification occurs between plates or between the capillary plate and the readout plate (parallel plate amplification mode). Results of these studies demonstrated that in the parallel-plate amplification mode one can reach both high gains (>10(5)) and good position resolutions (similar to100 mum) even with a single step arrangement. It offers a compact amplification structure, which can be used in many applications. For example, in preliminary tests we succeeded to combine it with a photocathode and use it as a position sensitive gaseous photomultiplier. CsI coated capillary plates could also be used as a high position resolution and high rate X-ray converter.
Place, publisher, year, edition, pages
2004. Vol. 51, no 3, 952-959 p.
capillary, CsI cathode, gaseous electron multiplier (GEM), PPAC, portal imaging, plate, photocathodes, tubes, gain
IdentifiersURN: urn:nbn:se:kth:diva-23571DOI: 10.1109/TNS.2004.829371ISI: 000222644400028ScopusID: 2-s2.0-3343025632OAI: oai:DiVA.org:kth-23571DiVA: diva2:342269
QC 20100525 QC 20111020. Nuclear Science Symposium/Medical Imaging Conference/13th International Workshop on Room-Temperature Semiconductor X-and Gamma-Ray Dectectors/Symposium on Nuclear Power Systems. Portland, OR. OCT 19-25, 2003 2010-08-102010-08-102011-10-26Bibliographically approved