Determination of hydrogen concentration in solids by transmission ERDA under nuclear-elastically enhanced recoiling of H by 8 and 9 MeV He

J Phys Condens Matter. 2022 Aug 30;34(43). doi: 10.1088/1361-648X/ac8b4e.

Abstract

Hydrogen concentrations in thin self-supporting samples of polyphenylene sulfide (PPS) and muscovite have been determined by nuclear-elastic recoil detection analysis (ERDA) of transmission layout. The analysis procedure is based only on the database of stopping power and recoil cross section for material analysis, without using any reference sample of known H content. For the PPS sample, the determined value of(2.87±0.26)×1022H cm-3is in good agreement with the calculated value of3.01×1022H cm-3. For the muscovite sample, the H concentration originating each from bound water and absorbed water is uniform over the entire thickness of the sample. The determined concentration(9.43±0.75)×1021H cm-3of the muscovite agrees excellently with the value of9.36×1021H cm-3obtained from other quantitative analyses typically applied for minerals. The present results demonstrate the capability of accurate determination of H contents in materials and minerals by transmission ERDA.

Keywords: ERDA; PPS; hydrogen; ion beam analysis; muscovite.