Aqueous marker penetration into ion irradiated polyimide

Autor:	Maja Müller, Jarmila Cervena, Lewis T. Chadderton, Leopold Palmetshofer, V. Hnatowicz, J. Vacik, R. Klett, D. Fink, Alexander Petrov
Rok vydání:	2002
Předmět:	Nuclear and High Energy Physics Materials science Aqueous solution Penetrant (mechanical electrical or structural) Isotopes of lithium Analytical chemistry Neutron depth profiling Penetration (firestop) Irradiation Instrumentation Polyimide Ion
Zdroj:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 191:662-668
ISSN:	0168-583X
DOI:	10.1016/s0168-583x(02)00629-8
Popis:	The penetration of aqueous 6Li+ markers into low energy ion irradiated polyimide (PI) foils was examined by the neutron depth profiling technique in combination with a modified tomographic approach. The ion irradiation always leads to an enhancement in marker uptake. After irradiation at low fluence the marker profiles follow the nuclear damage distribution even in three dimensions. At elevated fluences saturation in the marker uptake is clearly seen. The polymer's penetrant uptake can be described well by regular diffusion, with nuclear damage centres acting as saturable traps. These observations are strikingly different from the marker penetration into high-energy heavy-ion irradiated PI.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0d0b3a277104ef87258bf51335f831e9 https://doi.org/10.1016/s0168-583x(02)00629-8 Zobrazit plný text záznamu Full Text from ScienceDirect