■ Students involved
Kwon Choi (firstname.lastname@example.org)
Jong In Park (email@example.com)
When emergency accident occurs related with radiation and nuclear
power, workers have personal dosimeter on their body. However, people who live
near the region of radiation emergency have no personal dosimeter.
Dicentric analysis, translocation analysis, PCC analysis, and MN
analysis are widely used biological method to quantify DNA aberration caused by
irradiated dose from accidents. However, Analysis of sample generally takes
Electron paramagnetic resonance spectroscopy is a method for
studying materials with unpaired electrons. The basic concepts of EPR are
analogous to those of nuclear magnetic resonance, but it is electron spins that
are excited instead of the spins of atomic nuclei. EPR spectroscopy is only
method to measure free-radicals directly.
There are few EPR spectrometers for dosimetry in radiation safety
institution. EPR spectroscopy can measure irradiated dose within 1 hour from
sample. But, the most devices use extracted tooth or in-vitro samples in South
Korea. Therefore, we are developing the EPR spectrometer for tooth dosimetry since
2015 funded by Nuclear Safety and Security Commission (NSSC). Our groups have
focused on tooth dosimetry with principle of EPR spectroscopy. We aim to
complete construction of EPR spectroscopy and establishment of dose-response
curve until 2018 with following goals (1) Sensitivity < 1 Gy (2) processing
rate 10-20 persons/hour (3) transportable device
Prof. Hiroshi Hirata is the adviser who is leading scientist of international EPR society and MRI group of Hokkaido University. RPLab and Prof. Hiroshi Hirata have a close cooperation with each other. Prof. Harold M. Swartz (Dartmouth EPR center) is leading scientist and pioneer in EPR spectroscopy and biomedical application. Prof. Harold M. Swartz and his group is also our honorable close collaborator.