A Gas Proportional Scintillation Counter with krypton filling

Monteiro, C. M. B.; Mano, R.D.P.; Barata, E.C.G.M.; Fernandes, L. M. P.; Freitas, E.D.C.

doi:10.1088/1748-0221/11/12/c12079

Cited by 5 publications

(4 citation statements)

References 40 publications

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“…31. Left: measured electroluminescence yield (Y ) in xenon (triangles) and argon (circles) as a function of the electric field, and comparison with simulations for all gases, after [98] (recent results from krypton can be found in [215]). Right: scintillation process in the presence of molecular additives, from [216].…”

Section: Charge Detection (Ii Secondary Scintillation)mentioning

confidence: 99%

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Gaseous and dual-phase time projection chambers for imaging rare processes

González-Díaz

Monrabal

Murphy

2018

Nuclear Instruments and Methods in Physics Research Section A:

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Section: Charge Detection (Ii Secondary Scintillation)mentioning

confidence: 99%

“…Due to its smallness, the experimental determination of Q is extremely difficult, and it has been performed to date only for electronegative mixtures [59]. [98] (recent results from krypton can be found in [215]). Right: scintillation process in the presence of molecular additives, from [216].…”

Section: Charge Detection (Ii Secondary Scintillation)mentioning

confidence: 99%

Gaseous and dual-phase time projection chambers for imaging rare processes

González-Díaz

Monrabal

Murphy

2018

Nuclear Instruments and Methods in Physics Research Section A:

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“…The number of VUV photons is proportional to the number of primary electrons crossing the scintillation region and, thus, to the incident x-ray energy. The detector response to x-rays has been studied in detail for Xe [46], Ar [47] and Kr [48] gas fillings.…”

Section: Methodsmentioning

confidence: 99%

Electroluminescence yield in pure krypton

Mano¹,

Henriques²,

Amaro³

et al. 2021

Preprint

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The krypton electroluminescence yield was studied, at room temperature, as a function of electric field in the gas scintillation gap. A large area avalanche photodiode has been used to allow the simultaneous detection of the electroluminescence pulses as well as the direct interaction of x-rays, the latter being used as a reference for the calculation of the number of charge carriers produced by the electroluminescence pulses and, thus, the determination of the number of photons impinging the photodiode. An amplification parameter of 113 photons per kV per drifting electron and a scintillation threshold of 2.7 Td ( 0.7 kV cm −1 bar −1 at 293 K ) was obtained, in good agreement with the simulation data reported in the literature. On the other hand, the ionisation threshold in krypton was found to be around 13.5 Td (3.4 kV cm −1 bar −1 ), less than what had been obtained by the most recent simulation work-package. The krypton amplification parameter is about 80% and 140% of those measured for xenon and argon, respectively. The electroluminescence yield in krypton is of great importance for modeling krypton-based double-phase or high-pressure gas detectors, which may be used in future rare event detection experiments.

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“…The wide range of applications that rely on the most advanced EL detectors include doublephase liquid noble gas time projection chamber (TPC) for rare event searches (e.g. dark matter [8,[13][14][15][16][17], neutrino physics [18][19][20][21], low energy X-rays [22,23], and nuclear medical imaging [24]). New technologies such as linear (APD) or Geiger (SiPM) Avalanche Photo-Diode [25], hybrid devices [26] and fast Charge-Couple Device CCD [27], are extremely sensitive and allow EL-based readout to deliver better signal-to-noise ratio and better energy resolution compared to the traditional charge-based detectors.…”

Section: Introductionmentioning

confidence: 99%

Development of a parallel-plate avalanche counter with optical readout (O-PPAC)

Cortesi¹,

Ayyad²,

Yurkon³

2018

J. Inst.

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we describe a novel gaseous detector concept for heavy-ion tracking and imaging: the Optical Parallel-Plate Avalanche Counter (O-PPAC). The detector consists of two thin parallel-plate electrodes separated by a small (typically 3 mm) gap filled with low-pressure scintillating gas (i.e. CF4). The localization of the impinging particles is achieved by recording the secondary scintillation, created during the avalanche processes within the gas gap, with dedicated position-sensitive optical readouts. The latter may comprise arrays of collimated photosensors (e.g. SiPMs) that surround the PPAC effective area. We present a systematic Monte Carlo simulation study used to optimize the geometry of the OPPAC components, including SiPMs effective area, collimator dimensions, and operational conditions. It was found that the optimal design for 10x10 cm 2 OPPAC detector comprises four arrays, each of them counting a total of 15-20 individual photo-sensors. This configuration provides a localization capability with a resolution below 1 mm and good response uniformity. An experimental investigation successfully demonstrated the proof of principle stage of an O-PPAC prototype equipped with a single array of 10 photo-sensors, separated by 6 mm. The performance of the prototype was investigated with an LED light, under 10,12 C beam irradiation, and with a low-intensity 241-Am alpha-particle source. The experimental data obtained with the prototype is compared to the results obtained by systematic Monte Carlo simulations.

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A Gas Proportional Scintillation Counter with krypton filling

Cited by 5 publications

References 40 publications

Gaseous and dual-phase time projection chambers for imaging rare processes

Gaseous and dual-phase time projection chambers for imaging rare processes

Electroluminescence yield in pure krypton

Development of a parallel-plate avalanche counter with optical readout (O-PPAC)

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