NSUF - Nuclear Science User Facilities

Aleksandr Chernatynskiy

Profile Information
Name
Dr Aleksandr Chernatynskiy
Institution
Missouri University of Science and Technology
Position
Assistant Professor
h-Index
ORCID
0000-0001-7431-7201
Publications:
"In-situ measurement of irradiation behavior in LiNbO3" Marat Khafizov, Aleksandr Chernatynskiy, Gaofeng Sha, Joshua Daw, Cole Harlow, Nuclear Instruments and Methods in Physics Research Section B Vol. 472 2020 46-52 Link
In-situ measurement of LiNbO3 based surface acoustic wave (SAW) crystal resonator device under irradiation was demonstrated and used to characterize the impact of radiation on physical properties of this material. The resonant frequency of the SAW device was monitored as the output power of the reactor was varied. Upon step increase of the reactor power, a gradual shift in the device’s resonant frequency was observed. This frequency shift initially exhibits a linear growth and eventually reaches an equilibrium value proportional to the reactor power. The observed behavior can be attributed to two competing processes: increase of temperature due to gamma heating or accumulation of irradiation induced defects. In both cases, the response is attributed to changes in the physical properties of LiNbO3, particularly the elastic constants. This demonstrated ability to measure materials properties under irradiation is attractive for development of sensors and performing materials science under irradiation.
Presentations:
"Irradiation behavior of piezoelectric materials for nuclear reactor sensors" Marat Khafizov, Gaofeng Sha, Cole Harlow, Aleksandr Chernatynskiy, Joshua Daw, Radiation Effects in Insulators August 19-23, (2019)

About Us

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.

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