Depth resolution of transmission ERDA for H in Al under nuclear-elastically enhanced recoiling of H by 8 MeV He

Hiroshi Kudo; Hiroshi Naramoto; Masao Sataka; Satoshi Ishii; Kimikazu Sasa; Shigeo Tomita

doi:10.1088/1361-648X/ac17ac

Depth resolution of transmission ERDA for H in Al under nuclear-elastically enhanced recoiling of H by 8 MeV He

J Phys Condens Matter. 2021 Sep 6;33(46). doi: 10.1088/1361-648X/ac17ac.

Authors

Hiroshi Kudo¹, Hiroshi Naramoto¹, Masao Sataka¹, Satoshi Ishii¹, Kimikazu Sasa^{1

2}, Shigeo Tomita²

Affiliations

¹ Research Facility Center for Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan.
² Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.

PMID: 34311445
DOI: 10.1088/1361-648X/ac17ac

Abstract

Using stacked samples of Al foil and H-containing resin film, we have carried out elastic recoil detection analysis with transmission layout (T-ERDA) to investigate the depth resolution in the measurements of H distribution in Al. For narrow and wide acceptance conditions of the detector, the depth resolutions of 1.5-4.9μm at several depths in Al of 50 and 80μm thicknesses have been determined for incidence of 8 MeV⁴He. While the main factor to degrade the depth resolution is the energy straggling of recoil H for narrow acceptance conditions, it is the extended low-energy side of the H spectrum for wide acceptance conditions. The knowledge obtained in this work is useful for analysis of 3D images of H distribution measured by T-ERDA, for example, future analysis of minerals or natural glass samples to determine abundances and distributions of water or OH in the samples.

Keywords: 3D hydrogen distribution; hydrogen in solids; ion beam analysis; transmission ERDA.