Hydrogen desorption induced by heavy-ions during surface layer analysis with ERDA

Autor:	V. M. Prozesky, Heinz P. Huber, R. Behrisch, Walter Assmann
Rok vydání:	1996
Předmět:	Nuclear and High Energy Physics Hydrogen Analytical chemistry chemistry.chemical_element Amorphous solid Ion Elastic recoil detection chemistry Surface layer Atomic physics Instrumentation Layer (electronics) Carbon Beam (structure)
Zdroj:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 118:262-267
ISSN:	0168-583X
DOI:	10.1016/0168-583x(95)01094-7
Popis:	The modification of the surface layer composition during Elastic Recoil Detection Analysis (ERDA) of different carbon materials which had been loaded with hydrogen has been determined experimentally. For an amorphous C:H layer there is an initial overall loss of about 7 × 10 6 hydrogen atoms and about 2.3 × 10 6 carbon atoms per incident 200 MeV iodine ion from the analysing beam. Besides erosion of the amorphous C:H layer there is a depletion of the hydrogen in the carbon layer. For ERDA analysis with 130 MeV Ni ions the hydrogen release is about a factor of 3 lower compared to the ERDA analysis with 200 MeV I-ions. However the Rutherford cross section is more than a factor of 7 larger for 200 MeV I-ions compared to 130 MeV Ni ions, resulting in a higher sensitivity for the ERDA analysis with the heavier ions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1aa4795b64b78850d3f450ffd9e01df1 https://doi.org/10.1016/0168-583x(95)01094-7 Zobrazit plný text záznamu Full Text from ScienceDirect