[23a-F307-1~9] 2.2 Radiation physics fundamentals & applications, radiation generators, new technology

[23a-F307-3] [The 51st Young Scientist Presentation Award Speech] Investigation of Quantum pH Sensing Technology Using Angular Correlation Changes of Cascade Nuclides

〇Fumiki Sensui¹, Mizuki Uenomachi², Kenji Shimazoe^1,3, ZHIHONG ZHONG¹, Kei Kamada⁴, Hideki Tomita^3,5, Hiroyuki Takahashi¹ (1.Tokyo Univ., 2.RIKEN, 3.PRESTO-JST, 4.Tohoku Univ., 5.Nagoya Univ.)

Keywords:Quantum Sensing, Angular Correlation, Cascade Nuclide

Double γ-rays emitted from In-111, a cascade nuclide, have angular correlations, which change depending on the local environment such as pH around the nucleus. We succeeded in obtaining both positional decomposition by imaging and pH decomposition by angular correlation change using γ-ray detection with the dToT system. In this presentation, we will also discuss the verification of the hypothesis that the cause of the angular correlation change is the change in chemical form, and the discrimination experiment of small samples using a "fire" letter phantom.