NDLI: The leak microstructure: a novel element for sensitive position two-dimensional read out gaseous detectors. Preliminary results

Content Provider	IEEE Xplore Digital Library
Author	Lombardi, M. Lombardi, F.S.
Copyright Year	1997
Description	Author affiliation: Lab. Nazionali di Legnaro, Ist. Nazionale di Fisica Nucl., Legnaro, Italy (Lombardi, M.)
Abstract	A new microstructure for the detection of gas ionizing radiations has been characterized. For every-single detected ionizing radiation it gives a pair of "induced" charges of the same amount (pulses of the same amplitude), of opposite sign, with the same collection time and essentially in time coincidence, that are proportional to the primary ionization collected. Gas multiplication more than 10/sup 5/ with more than 10/sup 8/ electrons in the primary avalanches, working in the proportional region, are possible. The complete lack of insulating materials in the active volume of this microstructure avoids problems of charging-up and makes stable and repeatable its behaviour. This microstructure, through the use of the charge pair generated, allows the development of a position sensitive detector with a two-dimensional read-out. Using isobutane as the gas, an energy resolution of about 8% FWHM was recorded with /spl alpha/ particles from an /sup 241/Am source in /spl Delta/E fashion. Always in isobutane gas, X-rays from a /sup 55/Fe source were also detected.
Starting Page	603
Ending Page	607
File Size	435807
Page Count	5
File Format	PDF
ISBN	0780335341
ISSN	10823654
DOI	10.1109/NSSMIC.1996.591072
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-11-02
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microstructure Radiation detectors Ionizing radiation Ionization Electrons Insulation Position sensitive particle detectors Energy resolution X-rays Iron
Content Type	Text
Resource Type	Article

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