POSDIF — A program to compute positron diffusion and annihilation in rare gases

Title of program: POSDIF Catalogue Id: AAHN_v1_0 Nature of problem Calculates positron lifetime spectrum in a gas being given the gas pressure and temperature, the value of the external electric field strength and the fits to momentum dependence of the positron-atom momentum transfer cross section and of the effective charge number. Versions of this program held in the CPC repository in Mendeley Data AAHN_v1_0; POSDIF; 10.1016/0010-4655(82)90079-0 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)