Speaker
Description
Pulse radiolysis is a powerful technique for investigating the initial kinetics and mechanisms of radiation-induced chemical and biological reactions by irradiating samples with high-energy ultrashort radiation pulses and observing transient intermediates through time-resolved spectroscopy. This method enables direct tracking of ultrafast processes on the ns–μs timescale, including electron transfer, radical formation, and decay dynamics, making it an essential tool in radiation chemistry, materials science, and life science research.
At the Advanced Radiation Technology Institute of KAERI, an ultrashort-pulse electron accelerator system for pulse radiolysis experiments is being developed by upgrading an existing irradiation electron accelerator. The electron gun system is being optimized to reduce the electron-beam pulse width from 20 μs to below 1 μs, with the ultimate goal of nanosecond-scale pulse operation. The upgraded system is expected to provide high temporal resolution and sufficient dose rate for synchronized pulse radiolysis and spectroscopic diagnostics.
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