NDLI: Insensitive zones and space resolution of microdot (MDOT) detectors of 50, 100 and 200 micron pitch

Content Provider	IEEE Xplore Digital Library
Author	Han, S.H. Hong, W.S. Kim, H.K. Kim, J.G. Park, I.J. Kadyk, J. Wenzel, W. Perez-Mendez, V.
Copyright Year	2000
Description	Author affiliation: Div. of Phys., Lawrence Berkeley Lab., CA, USA (Han, S.H.)
Abstract	Insensitive regions and spatial resolution of the microdot (MDOT) detectors having 200 /spl mu/m, 100 /spl mu/m, and 50 /spl mu/m pitches were studied using a collimated X-ray as a probe. The insensitive zones measured by the probe scan were compared with those estimated previously from the drift voltage dependence of the count rate variation. The X-ray probe scan was done along an isolated strip of a ganged linear array of MDOT anodes, and this showed the existence of insensitive zones in the 200 /spl mu/m pitch detector. However, we did not observe these in the in the 100 /spl mu/m and 50 /spl mu/m pitch detectors. The spatial resolution, indicated by the standard deviation of the fitted Gaussian distribution of scanning signals across the anode strip, was determined to be 80 /spl mu/m, 55 /spl mu/m, and 51 /spl mu/m for the 200 Gun, 100 /spl mu/m, and 50 /spl mu/m pitch detectors, respectively. Therefore, the 100 /spl mu/m was determined to be the optimum pitch for absence of the insensitive zones, good spatial resolution, and good avalanche gain.
Starting Page	660
Ending Page	664
File Size	470959
Page Count	5
File Format	PDF
ISBN	0780356969
ISSN	10823654
DOI	10.1109/NSSMIC.1999.845755
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Spatial resolution Probes X-ray detection X-ray detectors Anodes Collimators Voltage Sensor arrays Gaussian distribution Strips
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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