A desktop particle detector using the gas microstrip chamber /
The physics and operation of the gas microstrip chamber (GMC) is investigated. A recent addition to the family of gaseous ionization detectors the GMC is capable of resolving the x,y position of a charged particle or x-ray to a resolution of less than 200 microns. Improvements to previous designs i...
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| Format: | Thesis Book |
| Language: | English |
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[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=742744671&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD |
| Summary: | The physics and operation of the gas microstrip chamber (GMC) is investigated. A recent addition to the family of gaseous ionization detectors the GMC is capable of resolving the x,y position of a charged particle or x-ray to a resolution of less than 200 microns. Improvements to previous designs include the first 100 micron resolution chamber with a low capacitance electrode geometry on ion-implanted spin-on-polyimide. The effect of the electrode voltages and gas pressures on the gas multiplication is measured and compared with an analytical expression for the First Townsend coefficient; the data and theory are in good agreement. A digital readout system capable of reading out a 128 channel GMC at a rate of 7 million samples / second has been designed and built using off-the-shelf, high speed discriminators, programmable logic devices and memory. This system was used to image a collimated x-ray source and an electrophoresis gel containing tritium labeled protein. Some applications for this detector include its use in high energy physics experiments as well as for x-ray crystallography and digital autoradiography. |
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| Item Description: | Vita. "Major Subject: Physics". |
| Physical Description: | xiv, 150 leaves : illustrations ; 28 cm. Issued also on microfiche from University Microfilms Inc. |
| Bibliography: | Includes bibliographical references. |