Ordinary objects become radioactive through neutron activation or particle bombardment
Ordinary materials and objects can indeed become radioactive when subjected to neutron fluxes through a process known as neutron activation.
The claim is specific and empirical, dealing with the well-established physical phenomenon of neutron activation. Multiple retrieved papers explicitly discuss neutron activation analysis, neutron-induced transmutation, and the resulting radioactivity in various materials and ordinary objects (such as paper cups and medical/reactor equipment).
Quadling A, Bowden D, Hardie C, Vasanthakumaran A. Developing power plant materials using the life cycle lens.. 2024. https://doi.org/10.1098/rsta.2023.0409
Paper 2 discusses how in-vessel materials in nuclear environments are exposed to high neutron fluxes, causing material activation and damage.
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Binhang Zhang, Xianbao Yuan, Yonghong Zhang, Haibo Tang, Zhangliang Mao, L. Mao. Development and verification of the activation analysis code AMY. 2018. https://doi.org/10.1016/J.PNUCENE.2018.04.020
Paper 8 presents computational codes designed to handle neutron-induced transmutation and activation in fusion reactor materials.
Takeuchi A, Motoyanagi T, Kato R, Komori S, Yamazaki Y, Komatsu S, Kato T, Takai Y. Clinical feasibility of a commercial bolus in boron neutron capture therapy: Dosimetric evaluation and activation risk.. 2025. https://doi.org/10.1002/mp.70156
Paper 9 evaluates neutron-induced activation in materials used during boron neutron capture therapy.
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