Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Review of Scientific Instruments
73 (2002), S. 488-490
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
We report the initial performance of an argon gas proportional counter consisting of a microstructure: the microhole and strip plate (MHSP). The MHSP combines desirable features of both a gas electron multiplier (GEM) and a microstrip plate (MSP) into a single integrated microstructure. Like the GEM, the MHSP is fabricated with flexible printed-circuit technology. As implemented, the MHSP provides two charge-amplification stages: slotted holes that function as a GEM, and microstrip anodes that also function as the charge-collection electrode. With two stages of amplification the microstrip can be operated with bias voltages well below the breakdown threshold. Results for the operation of the MHSP in argon are presented. A charge amplification factor of seven was achieved in the microholes with a maximum electron transmission approaching 100%. The measured energy resolution for 5.9 keV x rays was 30%. Future plans include the incorporation of a photocathode into the MHSP for applications as an ultraviolet photosensor. © 2002 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1431438
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