Simulation of gas properties in various mixtures for high resolution position sensitive gas detectors

Author

Rübsamen, O. ; Pietsch, U. ; Schenk, H.W. ; Walenta, A.H.

Author_Institution

Phys. Dept., Univ. Siegen, Siegen, Germany

fYear

2010

fDate

Oct. 30 2010-Nov. 6 2010

Firstpage

1173

Lastpage

1177

Abstract

A simulation software has been developed to predict the spatial resolution of a gas detector for x-ray applications, including the range of photoelectrons, fluorescence photons and Auger electrons as well as the broadening by diffusion in the gas mixture. Gas properties (drift velocity, characteristic energy, diffusion) are evaluated over a wide range of the reduced field (0-2) kV/(cm*bar) by a Monte Carlo approach. Possible mixtures to be simulated are (Ar, Kr or Xe) + CH4 in any proportion. Results of the properties for common gas mixtures as measured are shown to be in good agreement with the calculated results.

Keywords

Auger electron spectroscopy; Monte Carlo methods; X-ray apparatus; X-ray detection; argon; biomedical equipment; biomedical imaging; diffusion; fluorescence spectroscopy; gas mixtures; krypton; organic compounds; physics computing; position sensitive particle detectors; proportional counters; simulation; xenon; Ar; Auger electrons; Kr; Monte Carlo approach; X-ray applications; Xe; agron-methane gas mixture; fluorescence photons; gas characteristic energy; gas detector spatial resolution; gas drift velocity; gas mixture diffusion; gas mixtures; gas properties simulation; high resolution position sensitive gas detectors; krypton-methane gas mixture; photoelectrons; simulation software; xenon-methane gas mixture; Electron mobility; Energy loss; Loss measurement; Monte Carlo methods; Photonics; Physics;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE

Conference_Location

Knoxville, TN

ISSN

1095-7863

Print_ISBN

978-1-4244-9106-3

Type

conf

DOI

10.1109/NSSMIC.2010.5873952

Filename

5873952