A multiterm Boltzmann analysis of drift velocity, diffusion, gain and magnetic-field effects in argon-methane-water-vapour mixtures

doi:10.1016/0168-9002(89)91446-0

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Volume 283, Issue 3, 10 November 1989, Pages 716-722

https://doi.org/10.1016/0168-9002(89)91446-0 Get rights and content

Abstract

The effect of adding water vapour to argon-methane mixtures used in TPC-type detectors is investigated using the exact multiterm Boltzmann expansion. The transverse and longitudinal diffusion coefficients and the drift velocity are calculated with an accuracy of ± 3, ± 2 and ± 1% respectively. The calculations are extended into the avalanche region and compared to avalanche gain measurements. The effect of misalignment of the electric and magnetic fields on the drift direction is also investigated.

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Section XI. SimulationsA multiterm Boltzmann analysis of drift velocity, diffusion, gain and magnetic-field effects in argon-methane-water-vapour mixtures

Abstract

Aust. J. Phys.

Nucl. Instr. and Meth.

Aust. J. Phys.

Phys. Rev.

Phys. Rev.

Phys. Rev.

Phys. Rev.

Phys. Rev.

Nucl. Instr. and Meth.

J. Phys.

J. Phys.

J. Phys.

J. Appl. Phys.

J. Phys.

Section XI. Simulations
A multiterm Boltzmann analysis of drift velocity, diffusion, gain and magnetic-field effects in argon-methane-water-vapour mixtures