https://doi.org/10.1140/epja/s10050-026-01804-9
Regular Article - Experimental Physics
Measurement of excitation functions of the alpha particle-induced nuclear reactions up to 50 MeV on holmium target
1
HUN-REN Institute for Nuclear Research (ATOMKI), 4026, Debrecen, Hungary
2
Nishina Center for Accelerator-Based Science, RIKEN, 351-0198, Wako, Japan
3
Faculty of Science, Hokkaido University, 060-0810, Sapporo, Japan
4
Graduate School of Biomedical Science and Engineering, Hokkaido University, 060-8638, Sapporo, Japan
5
Global Center for Biomedical Science and Engineering, Faculty of Medicine, Hokkaido University, 060-8648, Sapporo, Japan
6
Graduate School of Science and Engineering, Saitama University, 338-8570, Saitama, Japan
7
Olonlog Academy, 13312, Ulaanbaatar, Mongolia
8
High Energy Accelerator Research Organization (KEK), Oho, 305-0801, Tsukuba, Ibaraki, Japan
9
The Graduate University for Advanced Studies (SOKENDAI), 240-0193, Hayama, Kanagawa, Japan
a
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Received:
1
December
2025
Accepted:
25
January
2026
Published online:
27
March
2026
Abstract
165Er is a pure Auger-electron emitter that shows great potential for therapeutic applications in nuclear medicine. Various production methods have been described in the literature, typically involving the irradiation of erbium (Er) and holmium (Ho) targets with charged particles. This paper reports on the study of the indirect production of 165Er through the 165Ho(α,4n)165Tm reaction. Holmium foils have been irradiated with a 50 MeV alpha beam, and cross sections for producing 165,166,167,168Tm were determined using the activation method and stacked target technique, from the threshold to the maximum bombarding energy.
Communicated by Aurora Tumino.
© The Author(s) 2026
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