[1C08-15] Environmental radiation dose

3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)

[1C11] Development of an estimation method of concentration distribution and release amount of radionuclide discharged to the atmosphere using gamma-ray imaging(6) Estimation of release point

*Haruyasu Nagai¹, Hiromasa Nakayama¹, Daiki Satoh¹, Toru Tanimori² (1. JAEA, 2. Kyoto Univ.)

Keywords:

Atmospheric dispersion simulation,Radiation measurement,Source term estimation,Gamma-ray image,Release point

We are developping a method to estimate the concentration distribution and release amount of radionuclides discharged into the atmosphere by the combination of atmospheric dispersion simulation and radiation measurement. A method to estimate the release point from gamma-ray imag obtained just after release start was developed and tested using simulation-based data.