Standardization of accelerator irradiation procedures for simulation of neutron induced damage in reactor structural materials

Shao, Lin; Gigax, Jonathan; Chen, Di; Kim, Hyosim; Garner, Frank A.; Wang, Jing; Toloczko, Mychailo B.

doi:10.1016/j.nimb.2017.05.026

Standardization of accelerator irradiation procedures for simulation of neutron induced damage in reactor structural materials

Journal Article · Mon Jun 12 00:00:00 EDT 2017 · Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms

DOI:https://doi.org/10.1016/j.nimb.2017.05.026· OSTI ID:1415407

^[1]; Gigax, Jonathan ^[1]; Chen, Di ^[2]; Kim, Hyosim ^[1]; Garner, Frank A. ^[1]; Wang, Jing ^[3]; Toloczko, Mychailo B. ^[4]

Texas A & M Univ., College Station, TX (United States). Dept. of Nuclear Engineering
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Texas A & M Univ., College Station, TX (United States). Dept. of Nuclear Engineering; Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Self-ion irradiation is widely used as a method to simulate neutron damage in reactor structural materials. Accelerator-based simulation of void swelling, however, introduces a number of neutron-atypical features which require careful data extraction and, in some cases, introduction of innovative irradiation techniques to alleviate these issues. In this paper, we briefly summarize three such atypical features: defect imbalance effects, pulsed beam effects, and carbon contamination. The latter issue has just been recently recognized as being relevant to simulation of void swelling and is discussed here in greater detail. It is shown that carbon ions are entrained in the ion beam by Coulomb force drag and accelerated toward the target surface. Beam-contaminant interactions are modeled using molecular dynamics simulation. Finally, by applying a multiple beam deflection technique, carbon and other contaminants can be effectively filtered out, as demonstrated in an irradiation of HT-9 alloy by 3.5 MeV Fe ions.

Research Organization:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Texas A & M Univ., College Station, TX (United States)

Sponsoring Organization:: USDOE; USDOE Office of Nuclear Energy (NE)

Grant/Contract Number:: AC52-06NA25396; NE0008297

OSTI ID:: 1415407

Alternate ID(s):: OSTI ID: 1415698
OSTI ID: 1550186

Report Number(s):: LA-UR--17-25080

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms, Journal Name: Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms Vol. 409; ISSN 0168-583X

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited By (5)

Effect of Helium on Dispersoid Evolution under Self-Ion Irradiation in A Dual-Phase 12Cr Oxide-Dispersion-Strengthened Alloy Kim, Hyosim; Wang, Tianyao; Gigax, Jonathan G. Materials, Vol. 12, Issue 20 https://doi.org/10.3390/ma12203343	journal	October 2019
Carbon Contamination During Ion Irradiation - Accurate Detection and Characterization of its Effect on Microstructure of Ferritic/Martensitic Steels Wang, Jing; Toloczko, Mychailo B.; Kruska, Karen Scientific Reports, Vol. 7, Issue 1 https://doi.org/10.1038/s41598-017-15669-y	journal	November 2017
Magnetic Properties of Proton Irradiated Mn3Si2Te6 van der Waals Single Crystals Martinez, L. M.; Saiz, C. L.; Cosio, A. MRS Advances, Vol. 4, Issue 40 https://doi.org/10.1557/adv.2019.260	journal	January 2019
Magnetic Properties of Proton Irradiated Fe2.7GeTe2 Bulk Crystals Olmos, R.; Cosio, A.; Saiz, C. L. MRS Advances, Vol. 4, Issue 40 https://doi.org/10.1557/adv.2019.277	journal	January 2019
The Effect of Internal Free Surfaces on Void Swelling of Irradiated Pure Iron Containing Subsurface Trenches Wang, Tianyao; Kim, Hyosim; Garner, Frank A. Crystals, Vol. 9, Issue 5 https://doi.org/10.3390/cryst9050252	journal	May 2019

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