Penning transfer in argon-based gas mixtures

Şahin, Özkan; Tapan, I.; Ozmutlu, E.N.; Veenhof, R.

doi:10.1088/1748-0221/5/05/p05002

Cited by 85 publications

(91 citation statements)

References 85 publications

(127 reference statements)

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“…The second case is the one where all the helium excited states ionize xenon atoms. According to [25] the latter is probably closer to reality as hinted by their results for argon-xenon mixtures. Results are displayed in Fig.…”

Section: Fano Factor and W Valuesupporting

confidence: 51%

Helium–Xenon mixtures to improve the topological signature in high pressure gas xenon TPCs

Felkai

Monrabal

González-Díaz³

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

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Within the framework of xenon-based double beta decay experiments, we propose the possibility to improve the background rejection of an electroluminescent Time Projection Chamber (EL TPC) by reducing the diffusion of the drifting electrons while keeping nearly intact the energy resolution of a pure xenon EL TPC. Based on state-of-the-art microscopic simulations, a substantial addition of helium, around 10 or 15 %, may reduce drastically the transverse diffusion down to 2.5 mm/ √ m from the 10.5 mm/ √ m of pure xenon. The longitudinal diffusion remains around 4 mm/ √ m. Light production studies have been performed as well. They show that the relative variation in energy resolution introduced by such a change does not exceed a few percent, which leaves the energy resolution practically unchanged. The technical caveats of using photomultipliers close to an helium atmosphere are also discussed in detail.

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Section: Fano Factor and W Valuesupporting

confidence: 51%

Helium–Xenon mixtures to improve the topological signature in high pressure gas xenon TPCs

Felkai

Monrabal

González-Díaz³

et al. 2018

Nuclear Instruments and Methods in Physics Research Section A:

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“…The upgrades also allow the calculated excitation rates of the levels to be included in a Penning ionization transfer calculation [23] of the avalanche gain in gas mixtures used in radiation detectors, but this is not done on LXCat.…”

Section: Biagi-v71 and Biagi Databasesmentioning

confidence: 99%

LXCat: an Open‐Access, Web‐Based Platform for Data Needed for Modeling Low Temperature Plasmas

Pitchford

Alves

Bartschat

et al. 2016

Plasma Processes & Polymers

225

216

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LXCat is an open‐access platform (http://www.lxcat.net) for curating data needed for modeling the electron and ion components of technological plasmas. The data types presently supported on LXCat are scattering cross sections and swarm/transport parameters, ion‐neutral interaction potentials, and optical oscillator strengths. Twenty‐four databases contributed by different groups around the world can be accessed on LXCat. New contributors are welcome; the database contributors retain ownership and are responsible for the contents and maintenance of the individual databases. This article summarizes the present status of the project.

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“…We simulated the avalanche and obtained gas gains using the Garfield++ program with a threedimensional mesh [14]. We used a gas of Ar/C 2 H 6 (pressure ratio 90:10) at 1 atm and adopted a penning-effect rate of 0.31 [15]. The drift electric field and cathode voltage were fixed at 1.0 kV/cm and 0 V, respectively.…”

Section: Simulation Study Of Mems µ-Picmentioning

confidence: 99%

Development of the micro pixel chamber based on MEMS technology

et al. 2018

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Abstract. Micro pixel chambers (µ-PIC) are gaseous two-dimensional imaging detectors originally manufactured using printed circuit board (PCB) technology. They are used in MeV gamma-ray astronomy, medicalimaging, neutron imaging, the search for dark matter, and dose monitoring. The position resolution of the present µ-PIC is approximately 120 µm (RMS), however some applications require a fine position resolution of less than 100 µm. To this end, we have started to develop a µ-PIC based on micro electro mechanical system (MEMS) technology, which provides better manufacturing accuracy than PCB technology. Our simulation predicted the gains of MEMS µ-PICs to be twice those of PCB µ-PICs at the same anode voltage. We manufactured two MEMS µ-PICs and tested them to study their behavior. In these experiments, we successfully operated the fabricated MEMS µ-PICs and we achieved a maximum gain of approximately 7 ×10 3 and collected their energy spectra under irradiation of X-rays from 55 Fe. However, the measured gains of the MEMS µ-PICs were less than half of the values predicted in the simulations. We postulated that the gains of the MEMS µ-PICs are diminished by the effect of the silicon used as a semiconducting substrate.

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Penning transfer in argon-based gas mixtures

Cited by 85 publications

References 85 publications

Helium–Xenon mixtures to improve the topological signature in high pressure gas xenon TPCs

Helium–Xenon mixtures to improve the topological signature in high pressure gas xenon TPCs

LXCat: an Open‐Access, Web‐Based Platform for Data Needed for Modeling Low Temperature Plasmas

Development of the micro pixel chamber based on MEMS technology

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