Igor Jovanovic

Profile Information
Name
Professor Igor Jovanovic
Institution
University of California-Berkeley
Position
Professor
h-Index
39
ORCID
0000-0003-0573-3150
Publications:
"Data fusion of acoustic and optical emission from laser-produced plasma for in-situ measurement of rare earth elements in molten LiCl-KCl" Igor Jovanovic, Analytical Chemistry Vol. 96 2024 11255–11262
"Gamma-radiation-induced negative nonlinear absorption in quartz glass" Igor Jovanovic, Optical Materials Express Vol. 12 2022 1188
"Impact of Glass Irradiation on Laser-Induced Breakdown Spectroscopy Data Analysis" Igor Jovanovic, Sensors Vol. 23 2023 691
"In-situ measurement of Ce concentration in high-temperature molten salts using acoustic-assisted laser-induced breakdown spectroscopy with gas protective layer" Igor Jovanovic, Nuclear Engineering and Technology Vol. 12 2022
"Laser Ablation Spectrometry in Nuclear Security and Safety" Igor Jovanovic, Spectrochimica Acta, Part B Vol. 179 2021 106095
"Measurement of ionization produced by 254  eVnr nuclear recoils in germanium" Igor Jovanovic, Physical Review D Vol. 110 2024 083043 Link
Ionization produced by low-energy nuclear recoils is among the primary direct signatures of dark matter interactions. Despite the urgency of dark matter detection and the recent measurements of coherent elastic neutrino-nucleus scattering, detector response to nuclear recoils is not well characterized in the keVnr and sub−keVnr regime across a variety of materials. We have reperformed a measurement of the ionization produced by monoenergetic 254  eVnr nuclear recoils in Ge with improved digital electronics and additional systematic studies. Our results indicate an ionization yield of 64±8  eVee corresponding to a quenching factor of 25%±3%, greater than the 14% predicted by the Lindhard model. This ionization enhancement could greatly improve the sensitivity of high-purity Ge detectors in dark matter detection and measurement of neutrinos via coherent scattering.
"Optical Absorption of Fused Silica and Sapphire Exposed to Neutron and Gamma Radiation with Simultaneous Thermal Annealing" Igor Jovanovic, Journal of Nuclear Materials Vol. 570 2022 153945
"Optical Characterization System Development for In-situ Real-time Irradiation at High Temperatures" Igor Jovanovic, Transactions of American Nuclear Society Vol. 2025
"Optical Characterization System Development for In-situ Real-time Measurement of Transmissivity of Irradiated Bulk Optical Materials" Igor Jovanovic, Transactions of American Nuclear Society Vol. 2025
"Post-Irradiation Examination of Optical Components for Advanced Fission Reactor Instrumentation" Igor Jovanovic, Review of Scientific Instruments Vol. 92 2021 105107
"Radiation and Temperature Effects on Carbon- and Aluminum-Coated Optical Fibers" Igor Jovanovic, IEEE Transactions on Nuclear Science Vol. 72 2025 2587–2594
"Radiation and Temperature Effects on Carbon- and Aluminum-Coated Optical Fibers" Igor Jovanovic, IEEE Transactions on Nuclear Science Vol. 72 2025 2587
"Radiation-Induced Negative Optical Nonlinearities in Fused Silica, Sapphire, and Borosilicate Glass" Igor Jovanovic, Journal of Nuclear Materials Vol. 582 2023 154486
NSUF Articles:
NSUF awards 24 Rapid Turnaround Experiment proposals - Approximately $1.42M has been awarded. Wednesday, February 8, 2023 - Calls and Awards