High pressure GEM performance with argon, krypton and xenon gas mixtures

M. C. Altunbas; E. F. Barasch; M. R. Maier; D. Bednarek; S. Rudin; A. Greenwald; E. Johnson; M. Pralle

High pressure GEM performance with argon, krypton and xenon gas mixtures

M. C. Altunbas
, E. F. Barasch
, M. R. Maier
, D. Bednarek
, S. Rudin
, A. Greenwald
, E. Johnson
, M. Pralle

Radiology

University of Texas Health Science Center at Houston
North Campus
Lawrence Berkeley National Laboratory
Subatomic Technologies, Inc.
Ion Optics Corporation

Research output: Contribution to journal › Conference article › peer-review

Abstract

Using a double GEM we were not able to operate with gas gains as high as 1,000 in gas mixtures employing CO₂, ethane, and propane quenchers at pressures above 2.0 bar in Xenon and 3.0 bar in Krypton. However, a trinary mixture of Ar/Ethane/DME 78.5/20/1.5 allowed stable performance at 8.0 bar (absolute). Exchanging our double GEM for a quadruple GEM then combining this trinary mixture at the 20% level with Kr (Xe) resulted in improved performance with maximum operating pressures of 4.0 bar for Xe and 7.0 bar for Kr mixtures. Importantly, we also added additional heavy quencher by passing the mixed gases over a reservoir containing methylal (TEA).

Original language	English
Article number	N16-73
Pages (from-to)	554-558
Number of pages	5
Journal	IEEE Nuclear Science Symposium Conference Record
Volume	1
State	Published - 2004
Event	2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors - Rome, Italy Duration: Oct 16 2004 → Oct 22 2004

Cite this

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title = "High pressure GEM performance with argon, krypton and xenon gas mixtures",

abstract = "Using a double GEM we were not able to operate with gas gains as high as 1,000 in gas mixtures employing CO2, ethane, and propane quenchers at pressures above 2.0 bar in Xenon and 3.0 bar in Krypton. However, a trinary mixture of Ar/Ethane/DME 78.5/20/1.5 allowed stable performance at 8.0 bar (absolute). Exchanging our double GEM for a quadruple GEM then combining this trinary mixture at the 20\% level with Kr (Xe) resulted in improved performance with maximum operating pressures of 4.0 bar for Xe and 7.0 bar for Kr mixtures. Importantly, we also added additional heavy quencher by passing the mixed gases over a reservoir containing methylal (TEA).",

author = "Altunbas, \{M. C.\} and Barasch, \{E. F.\} and Maier, \{M. R.\} and D. Bednarek and S. Rudin and A. Greenwald and E. Johnson and M. Pralle",

year = "2004",

language = "English",

volume = "1",

pages = "554--558",

journal = "IEEE Nuclear Science Symposium Conference Record",

issn = "1095-7863",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors ; Conference date: 16-10-2004 Through 22-10-2004",

}

TY - JOUR

T1 - High pressure GEM performance with argon, krypton and xenon gas mixtures

AU - Altunbas, M. C.

AU - Barasch, E. F.

AU - Maier, M. R.

AU - Bednarek, D.

AU - Rudin, S.

AU - Greenwald, A.

AU - Johnson, E.

AU - Pralle, M.

PY - 2004

Y1 - 2004

N2 - Using a double GEM we were not able to operate with gas gains as high as 1,000 in gas mixtures employing CO2, ethane, and propane quenchers at pressures above 2.0 bar in Xenon and 3.0 bar in Krypton. However, a trinary mixture of Ar/Ethane/DME 78.5/20/1.5 allowed stable performance at 8.0 bar (absolute). Exchanging our double GEM for a quadruple GEM then combining this trinary mixture at the 20% level with Kr (Xe) resulted in improved performance with maximum operating pressures of 4.0 bar for Xe and 7.0 bar for Kr mixtures. Importantly, we also added additional heavy quencher by passing the mixed gases over a reservoir containing methylal (TEA).

AB - Using a double GEM we were not able to operate with gas gains as high as 1,000 in gas mixtures employing CO2, ethane, and propane quenchers at pressures above 2.0 bar in Xenon and 3.0 bar in Krypton. However, a trinary mixture of Ar/Ethane/DME 78.5/20/1.5 allowed stable performance at 8.0 bar (absolute). Exchanging our double GEM for a quadruple GEM then combining this trinary mixture at the 20% level with Kr (Xe) resulted in improved performance with maximum operating pressures of 4.0 bar for Xe and 7.0 bar for Kr mixtures. Importantly, we also added additional heavy quencher by passing the mixed gases over a reservoir containing methylal (TEA).

UR - https://www.scopus.com/pages/publications/23844472329

M3 - Conference article

AN - SCOPUS:23844472329

SN - 1095-7863

VL - 1

SP - 554

EP - 558

JO - IEEE Nuclear Science Symposium Conference Record

JF - IEEE Nuclear Science Symposium Conference Record

M1 - N16-73

T2 - 2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors

Y2 - 16 October 2004 through 22 October 2004

ER -

High pressure GEM performance with argon, krypton and xenon gas mixtures

Abstract

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