Multiple ion beam irradiation for the study of radiation damage in materials

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:412

Article

Taller, Stephen¹  Woodley, David¹  Getto, Elizabeth²  Monterrosa, Anthony M.¹  Jiao, Zhijie¹  Toader, Ovidiu¹  Naab, Fabian¹  Kubley, Thomas¹  Dwaraknath, Shyam³  Was, Gary S.¹ 

[1] Univ Michigan, Ann Arbor, MI 48109 USA

[2] US Naval Acad, Annapolis, MD 21402 USA

[3] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

关键词: Ion irradiation;    Radiation damage;    Reactors;   

DOI  :  10.1016/j.nimb.2017.08.035

来源: Elsevier

【 摘 要 】

The effects of transmutation produced helium and hydrogen must be included in ion irradiation experiments to emulate the microstructure of reactor irradiated materials. Descriptions of the criteria and systems necessary for multiple ion beam irradiation are presented and validated experimentally. A calculation methodology was developed to quantify the spatial distribution, implantation depth and amount of energy-degraded and implanted light ions when using a thin foil rotating energy degrader during multi-ion beam irradiation. A dual ion implantation using 1.34 MeV Fe+ ions and energy-degraded D+ ions was conducted on single crystal silicon to benchmark the dosimetry used for multi-ion beam irradiations. Secondary Ion Mass Spectroscopy (SIMS) analysis showed good agreement with calculations of the peak implantation depth and the total amount of iron and deuterium implanted. The results establish the capability to quantify the ion fluence from both heavy ion beams and energy-degraded light ion beams for the purpose of using multi-ion beam irradiations to emulate reactor irradiated microstructures. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

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