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Title: Applicability of the MCPNX particle transport code for determination of the source correction effect in positron lifetime measurements on thin polymer films

Journal Article · · Physica Status Solidi (C)

The method presented herein uses the MCNPX Monte Carlo particle transport code to track individual positrons and other particles through geometry that accounts for the detectors, backing foils, samples and sources with their actual sizes, positions and material characteristics. Polymer material, polydimethylsiloxane (PDMS), with different thickness of films served as samples. The excellent agreement between the experimental results and the MCNPX simulation of source correction effects for varied positron sources and different film thicknesses validates the applicability of the MCNPX code.

Research Organization:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
DOE - FE
DOE Contract Number:
DE-AC07-99ID-13727
OSTI ID:
939436
Report Number(s):
INL/JOU-07-12811; TRN: US200823%%186
Journal Information:
Physica Status Solidi (C), Vol. 4, Issue 10
Country of Publication:
United States
Language:
English