title: Study and full simulation of ten different gases on sealed Multi-Wire Proportional Counter (MWPC) by using Garfield and Maxwell codes.
abstract: In this research gas sealed Multi-Wire Proportional Counter (MWPC) including blades between anode wires and beta particles of (90)Sr with 196keV mean energy were considered. Ten different gases such as Noble gases mixtures with methane and several other pure gases were studied. In this type of detector, by using Garfield and Maxwell codes and for each of the gases, variation of different parameters such as first Townsend, electron attachment coefficients with variable electric field and their effects on pulse height or collected charge and in turn on Signal to Noise Ratio (SNR) were studied. Also the effect of anode voltage and its diameter and the pressure of gas on the pulse height were studied. Results show that Garfield and Maxwell codes can be used to study and improve the design of other gaseous detectors.
authors.affiliation: Pars Isotope Company, P.O. Box 14376-63181, Tehran, Iran.
authors.forename: M Ebrahimi
authors.initials: ME
authors.lastname: Shohani
authors.affiliation: Radiation Application Research School, Nuclear Science and Technology Research Institute, Tehran, Iran. Electronic address: sm_golgoun@yahoo.com.
authors.forename: S M
authors.initials: SM
authors.lastname: Golgoun
authors.affiliation: Pars Isotope Company, P.O. Box 14376-63181, Tehran, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Aminipour
authors.affiliation: Pars Isotope Company, P.O. Box 14376-63181, Tehran, Iran.
authors.forename: A
authors.initials: A
authors.lastname: Shabani
authors.affiliation: Pars Isotope Company, P.O. Box 14376-63181, Tehran, Iran.
authors.forename: A R
authors.initials: AR
authors.lastname: Mazoochi
authors.affiliation: Pars Isotope Company, P.O. Box 14376-63181, Tehran, Iran.
authors.forename: R Maghsoudi
authors.initials: RM
authors.lastname: Akbari
authors.affiliation: Sharif University, Energy Department, P.O. Box 11365-11155, Tehran, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Mohammadzadeh
authors.affiliation: Pars Isotope Company, P.O. Box 14376-63181, Tehran, Iran.
authors.forename: M R
authors.initials: MR
authors.lastname: Davarpanah
authors.affiliation: Islamic Azad University, Science and Research Branch, Department of Medical Radiation, P.O. Box 14515-775, Tehran, Iran.
authors.forename: D
authors.initials: D
authors.lastname: Sardari
authors.affiliation: Radiation Application Research School, Nuclear Science and Technology Research Institute, Tehran, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Sadeghi
authors.affiliation: Islamic Azad University, Science and Research Branch, Department of Medical Radiation, P.O. Box 14515-775, Tehran, Iran.
authors.forename: F Babapour
authors.initials: FB
authors.lastname: Mofrad
authors.affiliation: Radiation Application Research School, Nuclear Science and Technology Research Institute, Tehran, Iran.
authors.forename: A
authors.initials: A
authors.lastname: Jafari
keywords: Multi-wire proportional counter; Multiplication factor; Noble gas; Pulse height; Signal to noise ratio