Combination of two Gas Electron Multipliers and a Micromegas as gain elements for a time projection chamber

S. Aiola; R. J. Ehlers; S. Gu; J. W. Harris; R. Majka; J. D. Mulligan; M. Oliver; J. Schambach; N. Smirnov

doi:10.1016/j.nima.2016.08.007

Combination of two Gas Electron Multipliers and a Micromegas as gain elements for a time projection chamber

S. Aiola, R. J. Ehlers, S. Gu, J. W. Harris, R. Majka, J. D. Mulligan, M. Oliver, J. Schambach, N. Smirnov

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

We measured the properties of a novel combination of two Gas Electron Multipliers with a Micromegas for use as amplification devices in high-rate gaseous time projection chambers. The goal of this design is to minimize the buildup of space charge in the drift volume of such detectors in order to eliminate the standard gating grid and its resultant dead time, while preserving good tracking and particle identification performance. To characterize this micro-pattern gas detector configuration, we measured the positive ion back-flow and energy resolution at various element gains and electric fields, using a variety of gases, and additionally studied crosstalk effects and discharge rates. At a gain of 2000, this configuration achieves an ion back-flow below 0.4% and an energy resolution better than σ/E=12% for ⁵⁵Fe X-rays.

Original language	English
Pages (from-to)	149-157
Number of pages	9
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	834
DOIs	https://doi.org/10.1016/j.nima.2016.08.007
State	Published - Oct 21 2016
Externally published	Yes

Funding

This work is supported by the US Department of Energy under Grant DE-SC004168 , contract 200935 from Brookhaven National Laboratory , primary funding from US Department of Energy DE-AC02-98-CH10886 , and contract 4000132727 from Oak Ridge National Laboratory , primary funding from US Department of Energy award DE-SC0014550 ; grants DE-SC0003892 and DE-SC0013391 .

Keywords

GEM
Micro-pattern gas detector
Micromegas
Time projection chamber

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10.1016/j.nima.2016.08.007

Cite this

Aiola, S., Ehlers, R. J., Gu, S., Harris, J. W., Majka, R., Mulligan, J. D., Oliver, M., Schambach, J., & Smirnov, N. (2016). Combination of two Gas Electron Multipliers and a Micromegas as gain elements for a time projection chamber. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 834, 149-157. https://doi.org/10.1016/j.nima.2016.08.007

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abstract = "We measured the properties of a novel combination of two Gas Electron Multipliers with a Micromegas for use as amplification devices in high-rate gaseous time projection chambers. The goal of this design is to minimize the buildup of space charge in the drift volume of such detectors in order to eliminate the standard gating grid and its resultant dead time, while preserving good tracking and particle identification performance. To characterize this micro-pattern gas detector configuration, we measured the positive ion back-flow and energy resolution at various element gains and electric fields, using a variety of gases, and additionally studied crosstalk effects and discharge rates. At a gain of 2000, this configuration achieves an ion back-flow below 0.4% and an energy resolution better than σ/E=12% for 55Fe X-rays.",

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author = "S. Aiola and Ehlers, {R. J.} and S. Gu and Harris, {J. W.} and R. Majka and Mulligan, {J. D.} and M. Oliver and J. Schambach and N. Smirnov",

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Aiola, S, Ehlers, RJ, Gu, S, Harris, JW, Majka, R, Mulligan, JD, Oliver, M, Schambach, J & Smirnov, N 2016, 'Combination of two Gas Electron Multipliers and a Micromegas as gain elements for a time projection chamber', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 834, pp. 149-157. https://doi.org/10.1016/j.nima.2016.08.007

Combination of two Gas Electron Multipliers and a Micromegas as gain elements for a time projection chamber. / Aiola, S.; Ehlers, R. J.; Gu, S. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 834, 21.10.2016, p. 149-157.

Research output: Contribution to journal › Article › peer-review

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AU - Aiola, S.

AU - Ehlers, R. J.

AU - Gu, S.

AU - Harris, J. W.

AU - Majka, R.

AU - Mulligan, J. D.

AU - Oliver, M.

AU - Schambach, J.

AU - Smirnov, N.

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AB - We measured the properties of a novel combination of two Gas Electron Multipliers with a Micromegas for use as amplification devices in high-rate gaseous time projection chambers. The goal of this design is to minimize the buildup of space charge in the drift volume of such detectors in order to eliminate the standard gating grid and its resultant dead time, while preserving good tracking and particle identification performance. To characterize this micro-pattern gas detector configuration, we measured the positive ion back-flow and energy resolution at various element gains and electric fields, using a variety of gases, and additionally studied crosstalk effects and discharge rates. At a gain of 2000, this configuration achieves an ion back-flow below 0.4% and an energy resolution better than σ/E=12% for 55Fe X-rays.

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ER -

Combination of two Gas Electron Multipliers and a Micromegas as gain elements for a time projection chamber

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Keywords

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