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Coplanar anode implementation in com...

Kiff, Scott Douglas.

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Coplanar anode implementation in compressed xenon ionization chambers.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Coplanar anode implementation in compressed xenon ionization chambers./
作者:	Kiff, Scott Douglas.
面頁冊數:	172 p.
附註:	Adviser: Zhong He.
Contained By:	Dissertation Abstracts International68-02B.
標題:	Engineering, Nuclear. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3253311

Coplanar anode implementation in compressed xenon ionization chambers.
Kiff, Scott Douglas.

Coplanar anode implementation in compressed xenon ionization chambers. - 172 p.

Adviser: Zhong He.

Thesis (Ph.D.)--University of Michigan, 2007.

This dissertation examines the problem of microphonic degradation of high-pressure xenon ionization chambers' energy spectra. A detector design that utilizes coplanar anodes is proposed to mitigate this problem, and an optimization study finds the best geometry given some constraints on the system. A radial position-sensing method is developed from theory and implemented in experiments, demonstrating usefulness in the areas of hardware diagnostics and energy spectrum enhancement. Detailed simulations quantify the effects of various physical processes on the measured energy spectrum; the processes that degrade the photopeak most severely also show promise for improvement via design and operational changes. Simulations show multiple-site events are undesirable due to resolution degradation.Subjects--Topical Terms:

1043651
Engineering, Nuclear.

Coplanar anode implementation in compressed xenon ionization chambers.
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245 1 0 $a Coplanar anode implementation in compressed xenon ionization chambers.
300 $a 172 p.
500 $a Adviser: Zhong He.
500 $a Source: Dissertation Abstracts International, Volume: 68-02, Section: B, page: 1280.
502 $a Thesis (Ph.D.)--University of Michigan, 2007.
520 $a This dissertation examines the problem of microphonic degradation of high-pressure xenon ionization chambers' energy spectra. A detector design that utilizes coplanar anodes is proposed to mitigate this problem, and an optimization study finds the best geometry given some constraints on the system. A radial position-sensing method is developed from theory and implemented in experiments, demonstrating usefulness in the areas of hardware diagnostics and energy spectrum enhancement. Detailed simulations quantify the effects of various physical processes on the measured energy spectrum; the processes that degrade the photopeak most severely also show promise for improvement via design and operational changes. Simulations show multiple-site events are undesirable due to resolution degradation.
520 $a A hydrogen cooling admixture is implemented to improve energy resolution after detailed simulations predict advantageous performance changes. The detector linearity is shown to be quite good over the range tested, 80-1330 keV. The best measured energy resolution is 4.2% FWHM at 662 keV, which is near the range that would be considered competitive with the less-rugged detectors employing Frisch grids.
590 $a School code: 0127.
650 4 $a Engineering, Nuclear. $3 1043651
650 4 $a Physics, Nuclear. $3 1019065
650 4 $a Physics, Radiation. $3 1019212
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710 2 $a University of Michigan. $3 777416
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