High pressure xenon electronically collimated camera for low energy gamma ray imaging

Bolozdynya, A.; Egorov, V.; Koutchenkov, A.; Safronov, G.A.; Smirnov, G. N.; Medved, S.; Morgunov, V.

doi:10.1109/23.656444

Cited by 20 publications

(9 citation statements)

References 18 publications

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“…The tube has a length of 200 mm and a diameter of 44 mm, with UV transparent windows at both ends. The inner surface of the tube is lined with a reflector combined with a wavelength shifter, that shifts the VUV light from xenon scintillation into visible light 2 .…”

Section: Experimental Apparatusmentioning

confidence: 99%

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Suitability of high-pressure xenon as scintillator for gamma ray spectroscopy

Resnati

Gendotti²,

Chandra³

et al. 2013

Nuclear Instruments and Methods in Physics Research Section A:

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Section: Experimental Apparatusmentioning

confidence: 99%

“…Xenon detectors have been used and are in use for a number of applications, in particular for the detection of gamma rays (for a partial list see [1] and references therein, [2,3,4,5]. For exhaustive review work see [6] and [7]).…”

Section: Introductionmentioning

confidence: 99%

Suitability of high-pressure xenon as scintillator for gamma ray spectroscopy

Resnati

Gendotti²,

Chandra³

et al. 2013

Nuclear Instruments and Methods in Physics Research Section A:

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“…[9], which features a 7-cm deep drift region, a 10-15-mm deep scintillation region and 1.2 bar xenon atmosphere. For standard Xe-GPSCs operated with PMTs, typical energy resolutions of 6.1% and 3.6% were achieved for 30-and 60-keV photons, respectively, at 5.5 bar, while at 9 bar the resolution degrades to 7.6% and 3.6%, respectively [20,21]. These energy resolutions are much better than those of electron avalanche detectors: at filling pressures of 1, 5 and 10 bar, typical values obtained with PCs [19] are 7.7%, 8.3% and 9.6%, and 5.5%, 6.0% and 6.5%, for 22-and 60-keV photons, respectively.…”

Section: Resultsmentioning

confidence: 99%

Xenon GPSC high-pressure operation with large-area avalanche photodiode readout

Coelho

Lopes

Covita

et al. 2007

Nuclear Instruments and Methods in Physics Research Section A:

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The performance of a xenon high-pressure gas proportional scintillation counter (GPSC) instrumented with a large area avalanche photodiode (LAAPD) as the VUV-photosensor has been investigated for filling pressures from 1 up to 10 bar, for 22-and 60-keV photons. The LAAPD photosensor is placed directly within the xenon envelope, as a substitute for the photomultiplier tube, avoiding the constraints of the use of a quartz scintillation window for GPSC-photosensor coupling, which absorbs a significant amount of scintillation and is a drawback for applications where large detection areas and high filling pressures are needed. The lowest energy resolutions are achieved for pressures around 5 bar (4.5% and 3.0% full width at half-maximum (FWHM), for 22-and 60-keV photons, respectively). Increasing the pressure to the 8 bar range, competitive energy resolutions of 5.0% and 3.6% are still achieved for 22-and 60-keV photons, respectively. This detector could be a compelling alternative in applications where compactness, large detection area, insensitivity to strong magnetic fields, room temperature operation, large signal-to-noise ratio and good energy resolution are important requirements. r

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“…Understanding the energy relaxation mechanisms for the excited levels of Xe is of practical importance for modeling kinetic processes in discharge devices, such as excimer lasers (Xe-halide and Xe-metal systems) [1] and xenon atom lasers [2], in microwave after glows [3] and in actinometry [4]. Xenon is also often used in a number of applications including: high energy particles detectors [5,6], plasma thrusters [7] and sputtering for thin film production [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Electron excitation coefficients for 2p and 3p levels of Xe

Malović

Strinić

Petrović

et al. 2000

The European Physical Journal D

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Electron excitation rate coefficients for 2p (2p1, 2p2, 2p3, 2p4, 2p5, 2p6) and 3p (3p5, 3p6, 3p7, 3p8, 3p10) (in Paschen notation) levels of xenon atom have been measured by using electron drift tube technique. The absolute excitation coefficients were obtained from the optical signal at the anode in Townsend xenon discharges, after correction for detector quantum efficiency. The ionization coefficients were determined from the spatial emission profile. The measurement were made for the electric field to xenon atom number density ratios (E/N) from 90 × 10 −21 Vm 2 to 10 × 10 −18 Vm 2 .

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High pressure xenon electronically collimated camera for low energy gamma ray imaging

Cited by 20 publications

References 18 publications

Suitability of high-pressure xenon as scintillator for gamma ray spectroscopy

Suitability of high-pressure xenon as scintillator for gamma ray spectroscopy

Xenon GPSC high-pressure operation with large-area avalanche photodiode readout

Electron excitation coefficients for 2p and 3p levels of Xe

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