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

Autor:	Alan W. Hunt, J. M. Urban-Klaehn, E. S. Peterson, R. Spaulding
Rok vydání:	2007
Předmět:	Antiparticle Annihilation Materials science Polydimethylsiloxane Physics::Medical Physics Monte Carlo method Detector Condensed Matter Physics Computational physics chemistry.chemical_compound Positron chemistry Antimatter Thin film Nuclear chemistry
Zdroj:	physica status solidi c. 4:3731-3734
ISSN:	1610-1642 1862-6351
DOI:	10.1002/pssc.200675819
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aa7608c24104bd487e5b4607dcfbd91c https://doi.org/10.1002/pssc.200675819 Zobrazit plný text záznamu Plný text