Light multi-GEM detector for high-resolution tracking systems

Bondar, A.; Oliveira, Rui de; Ropelewski, L.; Sauli, F.

doi:10.1016/j.nima.2005.11.098

Cited by 24 publications

(12 citation statements)

References 10 publications

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“…This effect is discussed in more detail below. The slightly different geometry of the Tech-Etch detector leads to a 10% change of the ratio of the fields inside the GEM foils to the transfer and induction fields, which can also increase the initial charging effects, as reported in [9], [10].…”

Section: Gain Increase Through Charge Depositionmentioning

confidence: 93%

Development of tracking detectors with industrially produced GEM foils

Surrow

Burns

Simon

et al. 2007

Nuclear Instruments and Methods in Physics Research Section A:

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Abstract-The planned tracking upgrade of the STAR experiment at RHIC includes a large-area GEM tracker used to determine the charge sign of electrons and positrons produced from W +(−) decays. For such a large-scale project commercial availability of GEM foils is necessary. We report first results obtained with a triple GEM detector using GEM foils produced by Tech-Etch Inc. of Plymouth, MA, USA. Measurements of gain uniformity, long-term stability as well as measurements of the energy resolution for X-Rays are compared to results obtained with an identical detector using GEM foils produced at CERN. A quality assurance procedure based on optical tests using an automated high-resolution scanner has been established, allowing a study of the correlation of the observed behavior of the detector and the geometrical properties of the GEM foils. Detectors based on Tech-Etch and CERN produced foils both show good uniformity of the gain over the active area and stable gain after an initial charge-up period, making them well suited for precision tracking applications.

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Section: Gain Increase Through Charge Depositionmentioning

confidence: 93%

Development of tracking detectors with industrially produced GEM foils

Surrow

Burns

Simon

et al. 2007

Nuclear Instruments and Methods in Physics Research Section A:

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Gain Increase Through Charge Depositionmentioning

confidence: 95%

Development of Tracking Detectors with industrially produced GEM Foils

Simon

Azmoun

Becker

et al. 2006

2006 IEEE Nuclear Science Symposium Conference Record

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The planned tracking upgrade of the STAR experiment at RHIC includes a large-area GEM tracker used to determine the charge sign of electrons and positrons produced from W +(−) decays. For such a large-scale project commercial availability of GEM foils is necessary. We report first results obtained with a triple GEM detector using GEM foils produced by Tech-Etch Inc. of Plymouth, MA, USA. Measurements of gain uniformity, long-term stability as well as measurements of the energy resolution for X-Rays are compared to results obtained with an identical detector using GEM foils produced at CERN. A quality assurance procedure based on optical tests using an automated high-resolution scanner has been established, allowing a study of the correlation of the observed behavior of the detector and the geometrical properties of the GEM foils. Detectors based on Tech-Etch and CERN produced foils both show good uniformity of the gain over the active area and stable gain after an initial charge-up period, making them well suited for precision tracking applications.

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“…It is known that multi-wire proportional chambers (MWPC) used in time-projection chambers (TPC) fail to provide good energy resolution [34]. This is mainly due to the fact that multiplication of ionization electrons occurs in chamber regions with different electric field intensities resulting in variation of the multiplication factor.…”

Section: Time-projection Chamber With High De/dz and Energy Resolutionsmentioning

confidence: 99%

GEM-Based Detectors for Direct Detection of Low-Mass WIMP, Solar Axions and Narrow Resonances (Quarks)

Parusov¹,

Овчинников²

2021

Preprint

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Gas electron multipliers (GEMs) with wire (WGEMs) or metal electrodes (MGEMs), which don’t use any plastic insulators between electrodes are created. The chambers containing MGEMs (WGEMs) with pin-anodes are proposed as detectors for searching of spin-dependent interactions between Dark Matter (DM) particles and gases with nonzero-spin nuclei (H2, D2, 3He, 21Ne, CF4, CH4, etc.). In this paper, we present a review of such chambers. For investigation of the gas mixtures Ne+10%H2, H2 (D2) +3ppmTMAE, the chamber containing WGEM with pin-anode detection system was constructed. In this paper we present the results of an experimental study of these gaseous mixtures exited by an α - source. Mixture of Ar + 40 ppm C2H4 and mixture 50% Xe + 50%CF4 have been investigated. The spatial distributions of photoelectron clouds produced by primary scintillations on α- and β-particle tracks, as well as the distributions of photoelectron clouds due to photons from avalanches at the pin-anode, have been measured for the first time. In our experiments as another filling of the chambers for search of low-mas WIMP (<10 GeV/c2), solar neutrino and solar axions with spin-dependent interaction we propose to use the mixtures: D2 + 3ppmTMAE, 3He + 3%CH4, 21Ne + 10%H2, at pressure 10-17 bar. And in our experiment with liquid gases is used the mixtures with 19F (LAr + CF4, LXe + CF4) and mixture LCH4 + 40ppm TMAE. The time projection chamber (TPC) with the mixture D2 + 3ppmTMAE filling allow to search of spin-dependent interactions of solar axions and deuterium. As well as we present the detecting systems for search of narrow pp-resonances (quarks) in accelerators experiments.

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Light multi-GEM detector for high-resolution tracking systems

Cited by 24 publications

References 10 publications

Development of tracking detectors with industrially produced GEM foils

Development of tracking detectors with industrially produced GEM foils

Development of Tracking Detectors with industrially produced GEM Foils

GEM-Based Detectors for Direct Detection of Low-Mass WIMP, Solar Axions and Narrow Resonances (Quarks)

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