Performance characteristics of a gas proportional scintillation counter coupled to a microstrip gas chamber photosensor

Veloso, J.F.C.A.; Santos, J.M.F. dos; Conde, C.A.N.

doi:10.1016/s0168-9002(98)00956-5

Cited by 18 publications

(2 citation statements)

References 18 publications

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“…The potential advantages of combining a xenon gas proportional scintillation counter (GPSC) with such a MSGC as the photosensor replacement for the photomultiplier tube (PMT) was recognized [2], [3]. A significant advantage of such photosensor results from the possibility of operating the CsI-coated MSP in direct contact with the GPSC Xe-filling gas [2], with the elimination of the GPSC scintillation window.…”

Section: Introductionmentioning

confidence: 99%

The performance of the GPSC/MSGC hybrid detector with argon-xenon gas mixtures

Monteiro

Veloso

Santos

et al. 2002

IEEE Trans. Nucl. Sci.

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Abstract-The performance for X-ray spectrometry of argon-xenon gas proportional scintillation counters (GPSCs) using a CsI-coated microstrip plate in direct contact with the scintillation gas as a vacuum ultraviolet photosensor is investigated for different argon-xenon mixtures. The GPSC/microstrip gas chamber hybrid detectors filled with argon-xenon mixtures present superior performance when compared to those with pure argon and pure xenon fillings. For these mixtures, the signal amplification due to the scintillation processes and the detector energy resolution may achieve values of 15-18 and 11-10%, respectively. The best energy resolutions can be achieved for mixtures with a broad range of xenon concentration, 20-70% Xe, and for lower reduced electric fields in the scintillation region as the xenon concentration is reduced. As in pure argon or pure xenon gas-filling, the detector performance is limited by optical positive feedback resulting from additional scintillation produced in the electron avalanche processes around the microstrip plate anodes. The best energy resolutions are achieved for positive feedback gains of about 1.1.

show abstract

Section: Introductionmentioning

confidence: 99%

The performance of the GPSC/MSGC hybrid detector with argon-xenon gas mixtures

Monteiro

Veloso

Santos

et al. 2002

IEEE Trans. Nucl. Sci.

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show abstract

“…T HE FEASIBILITY of detecting vacuum ultraviolet (VUV) photons using a microstrip gas chamber (MSGC) with the microstrip plate (MSP) coated with a thin layer of CsI as a photocathode operating in reflective mode was demonstrated by Zeitelhack et al [1]. The potential advantages of combining a xenon gas proportional scintillation counter (GPSC) with such a MSGC as the photosensor replacement for the photomultiplier tube (PMT) was recognized [2], [3]. A significant advantage of such photosensor results from the possibility of operating the CsI-coated MSP in direct contact with the GPSC Xe-filling gas [2], with the elimination of the GPSC scintillation window.…”

Section: Introductionmentioning

confidence: 99%

The performance of the GPSC/MSGC hybrid detector with argon-xenon gas mixtures

Monteiro¹,

Veloso²,

Santos³

et al.

2001 IEEE Nuclear Science Symposium Conference Record (Cat. No.01CH37310)

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The performance for X-ray spectrometry of argon-xenon gas proportional scintillation counters (GPSCs) using a CsI-coated microstrip plate in direct contact with the scintillation gas as a vacuum ultraviolet photosensor is investigated for different argon-xenon mixtures. The GPSC/microstrip gas chamber hybrid detectors filled with argon-xenon mixtures present superior performance when compared to those with pure argon and pure xenon fillings. For these mixtures, the signal amplification due to the scintillation processes and the detector energy resolution may achieve values of 15-18 and 11-10%, respectively. The best energy resolutions can be achieved for mixtures with a broad range of xenon concentration, 20-70% Xe, and for lower reduced electric fields in the scintillation region as the xenon concentration is reduced. As in pure argon or pure xenon gas-filling, the detector performance is limited by optical positive feedback resulting from additional scintillation produced in the electron avalanche processes around the microstrip plate anodes. The best energy resolutions are achieved for positive feedback gains of about 1.1.

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Development of portable gas proportional scintillation counters for x‐ray spectrometry

et al. 2001

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A review on gas proportional scintillation counters (GPSCs) is presented. Recent achievements towards the portability of simple, inexpensive and compact GPSCs are discussed. Compensation of solid angle effects with the curved grid technique can be used to produce non-focused GPSCs with medium-sized radiation windows, at least up to 80% of the photosensor active diameter, without degradation of detector performance. Low power-consuming and compact vacuum UV photosensors that can operate in direct contact with the scintillation gas, as an alternative to photomultiplier tubes, are now available. Small gettering devices with a low-power built-in heating elements have been shown to be sufficient for the required gas purification in GPSCs assembled with simple and inexpensive techniques, such as the use of epoxies for ceramic-to-metal joints.

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Performance characteristics of a gas proportional scintillation counter coupled to a microstrip gas chamber photosensor

Cited by 18 publications

References 18 publications

The performance of the GPSC/MSGC hybrid detector with argon-xenon gas mixtures

The performance of the GPSC/MSGC hybrid detector with argon-xenon gas mixtures

The performance of the GPSC/MSGC hybrid detector with argon-xenon gas mixtures

Development of portable gas proportional scintillation counters for x‐ray spectrometry

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