[14p-K502-1~12] 2.4 Life Sciences, Medical applications, Space and Earth Environment, Radiation Education

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[14p-K502-3] Feasibility of positron lifetime imaging analysis using gamma ray beam

〇Sodai Takyu¹, Yoshitaka Taira², Tetsuya Hirade³, Fumihiko Nishikido¹, Han Gyu Kang¹, Hideaki Tashima¹, Fujino Obata¹, Ken-ichiro Matsumoto¹, Miwako Takahashi¹, Taiga Yamaya¹ (1.QST, 2.IMS, 3.JAEA)

Keywords:

Positron emission tomography,Positron annihilation lifetime spectroscopy,Gamma ray beam

Because the time it takes for a positron to annihilate (lifetime) varies depending on the surrounding electron density, we are aiming to realize quantum PET (Q-PET) that can identify hypoxic cancers, for example, from the positron lifetime values. However, there is almost no basic data that correlates the positron lifetime values with disease and abnormality in the living body. Therefore, we aimed to develop a positron lifetime imaging analysis system that enables three-dimensional analysis of deep inside samples, including living bodies, using 6.6 MeV gamma ray beam from the Ultraviolet Synchrotron Orbital Radiation Facility (UVSOR) of the Institute for Molecular Science. The details will be reported in the conference presentation.