The micro-hole-and-strip plate gas detector: experimental results

Autor:	J.F.C.A. Veloso, J.M. Maia, R.E. Morgado, J.M.F. dos Santos, C.A.N. Conde
Rok vydání:	2002
Předmět:	Physics Nuclear and High Energy Physics business.industry Electrical engineering Proportional counter Photodetector Biasing Flexible electronics Microstrip Nuclear Energy and Engineering Gas electron multiplier Optoelectronics Gas detector Electrical and Electronic Engineering business Voltage
Zdroj:	IEEE Transactions on Nuclear Science. 49:875-880
ISSN:	1558-1578 0018-9499
DOI:	10.1109/tns.2002.1039582
Popis:	We report the performance characteristics of a new microstructure, the Micro-Hole-and-Strip Plate (MHSP), operated initially as an X-ray proportional counter. The MHSP is a combination of the features of a microstrip plate (MSP) and a gas electron multiplier (GEM) in a single microstructure. Like the GEM, the MHSP is fabricated using flexible printed circuit board technology. The MHSP provides two independent charge-amplification stages: a first stage consisting of slotted holes, operated as a GEM, and a second stage, the MSP anodes, that also function as the final charge-collection electrodes. Two obvious benefits accrue from this design: for a given total gain, the MSP anode-to-cathode voltage can be maintained well below the breakdown threshold, and the charge-amplification stages are optically isolated, in anticipation of future applications as a photosensor. Full electron transmission and total gains up to 1000 were achieved, with slotted-hole gains as high as 14. The best energy resolution achieved thus far for 5.9-keV X-rays is 23%. Measurements of gains, electron transmission, and energy resolution, as functions of biasing voltages, are reported.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2fb4d8fabee792e92ed9e4c340e19947 https://doi.org/10.1109/tns.2002.1039582 Zobrazit plný text záznamu