Physics of multi-GEM structures

Buzulutskov, A.

doi:10.1016/s0168-9002(02)01458-4

Cited by 39 publications

(62 citation statements)

References 35 publications

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“…Indeed, they would be frozen out at low temperatures. Also, this may speak in support of the hypothesis of associative ionization (the Hornbeck-Molnar process [12]) proposed recently in order to explain the unexpectedly low operation voltages and high gains observed in dense He [13].…”

Section: Resultssupporting

confidence: 86%

First results from cryogenic avalanche detectors based on gas electron multipliers

Buzulutskov

Bondar

Shekhtman

et al. 2003

IEEE Trans. Nucl. Sci.

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We study the performance of gaseous and two-phase (liquid-gas) cryogenic detectors of ionizing radiation, based on gas electron multipliers (GEMs). For the first time, relatively high gas gains, exceeding 10 , were obtained in pure He, Ar, and Kr at low temperatures and the stable avalanche mode of operation was observed in a two-phase cryogenic detector in Kr. The electron avalanching at low temperatures, in the range of 120-300 K, is systematically studied.

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Section: Resultssupporting

confidence: 86%

First results from cryogenic avalanche detectors based on gas electron multipliers

Buzulutskov

Bondar

Shekhtman

et al. 2003

IEEE Trans. Nucl. Sci.

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“…A standard triple GEM detector prototype [18] has a drift gap, two transfer gaps and an induction gap of 3mm, 1mm, 2mm, and 1mm respectively as shown in fig. 2.…”

Section: Description Of Triple Gem Detectormentioning

confidence: 99%

Performance of the triple GEM detector built using commercially manufactured GEM foils in India

Gola

Malhotra

Shah

et al. 2020

Nuclear Instruments and Methods in Physics Research Section A:

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The Gas Electron Multiplier (GEM) detectors has been utilized for various applications due to their excellent spatial resolution, high rate capabilities and flexibility in design. The GEM detectors stand as a promising device to be used in nuclear and particle physics experiments. Many future experiments and upgrades are looking forward to use this technology leading to high demand of GEM foils. Until now, CERN is the only reliable manufacturer and distributor of GEM foils, but with technology transfer, few other industries across the globe have started manufacturing these foils employing the same photo-lithographic technique. The Micropack Pvt. Ltd. is one such industry in India which produced first few 10 cm × 10 cm GEM foils, which were then distributed to few collaborating partners for testing reliability and performance of foils before they can be accepted by the scientific community. Characterization of three such foils have already been performed by studying their optical and electrical properties. Using these foils a triple GEM detector has been built and various performance characteristics have been measured. In this paper, we specifically report measurements on gain, resolution and response uniformity, by utilizing local quality control set-ups existing at University of Delhi.

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“…Here we follow the approach described in Ref. [14]: the GEM hole is approximated by a parallel-plate counter with an electric field taken equal to that calculated in the center of the hole. The result is presented in Fig.13: the reduced ionization coefficient (i.e.…”

Section: Electron Avalanchingmentioning

confidence: 99%

Cryogenic avalanche detectors based on gas electron multipliers

Bondar

Snopkov

Tikhonov

2004

Nuclear Instruments and Methods in Physics Research Section A:

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We study the performances of gaseous and two-phase (liquid-gas) cryogenic detectors of ionizing radiation based on gas electron multipliers (GEMs) and operated in an avalanche mode in pure noble gases. The gas amplification in He, Ar and Kr is systematically studied at low temperatures, using triple-GEM multipliers. High gains, exceeding 10 4 , were obtained in these gases in the range of 120-300 K. Stable electron avalanching was demonstrated in a saturated Kr vapor in the two-phase mode. These results are relevant for understanding basic mechanisms of electron avalanching at low temperatures and for applications in cryogenic particle detectors, in particular in dark matter and solar neutrino detectors.

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Physics of multi-GEM structures

Cited by 39 publications

References 35 publications

First results from cryogenic avalanche detectors based on gas electron multipliers

First results from cryogenic avalanche detectors based on gas electron multipliers

Performance of the triple GEM detector built using commercially manufactured GEM foils in India

Cryogenic avalanche detectors based on gas electron multipliers

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