Ion irradiation of materials. For simulating neutron damage, the lab is routinely performing 24/7 continuous ion irradiation to achieve ultra-high dpa values. For self-ion irradiation, such as Fe ion irradiation into steels, Ni into Inconel, and Zr into Zircaloy, we can achieve damage levels up to 1000 peak dpa and beyond.
The ion irradiation temperatures typically range from 300 °C to 600 °C, although the stages are able to reach any temperature from liquid nitrogen temperatures to 800 °C, with temperature fluctuation less than 5 °C. All temperature controls are realized by thermal couple reading on the surface of the heat stage, and are automatically adjusted by changing powers to the heating elements. The 1.7 MV and 3.0 MV target chambers are equipped with IR cameras for in situ temperature monitoring. Major ion irradiation chambers (1.7 MV and 3.0 MV) can reach a high vacuum of 2-4 x 10-8 Torr during ion irradiation to minimize surface contamination.
Radiation level allowed for single sample is <0.1 mCi.
• Beta/gamma emitters and depleted uranium only
o For a set of samples having level exceeding the limit, they will be stored in another place and ion irradiation will be performed one by one to meet the level requirement.
o For single sample having radiation level exceeding the limit, a project-oriented special inquiry is needed to submit to University Radiation Safety Committee for approval at least three months prior to the experiments.
• Liquids are not allowed. Solids and powders are allowed under the condition that they will not decompose under high vacuum.
No Support Equipment Defined
<100mr/hr @ 30cm
No Sample Encapsulation Defined
No Atmosphere Defined
No Commissioning Date Defined
No Recent Upgrade Defined
License End Date
No License End Date Defined
No Docket Number Defined
NE Use Percentage
No NE Use Percentage Defined
730 hr/year for 1.7 Accelerator. 3660 hr/year for 3 MV Accelerator.
The Nuclear Science User Facilities (NSUF) is the U.S. Department of Energy Office of Nuclear Energy's only designated nuclear energy user facility. Through peer-reviewed proposal processes, the NSUF provides researchers access to neutron, ion, and gamma irradiations, post-irradiation examination and beamline capabilities at Idaho National Laboratory and a diverse mix of university, national laboratory and industry partner institutions.