[9p-P08-1~26] 2 Ionizing Radiation (Poster)

[9p-P08-19] Development of a quasi-monochromatic X-ray irradiation field using an ion beam from 1MV tandem accelerator

〇Wataru Kada¹, Takumi Matsumoto¹, Miyu Matsuo¹, Yuki Ohtsuka¹, Sho Toyama¹, Misako Miwa¹, Shigeo Matsuyama¹ (1.QSE, Tohoku Univ.)

Keywords:

PIXE,quasi-monochromatic X-ray,tandem accelerator

The development and evaluation of corresponding detectors is required for the advancement of various diagnostic technologies using X-rays. In order to achieve a higher degree of precision, it is essential to evaluate the energy characteristics of detectors by employing photons in a range of energy bands. However, conventional X-ray sources typically rely on a method of monochromatising specific energy components from a continuous X-ray spectrum. Large facilities are essential for achieving pure monochromatic X-ray irradiation.There is a potential demand for a quasi-monochromatic X-ray irradiation field at the laboratory scale. In this study, we therefore investigated a monochromatic X-ray source based on charged particle excitation X-ray (PIXE) technology.Using a 1 MV tandem Peretron accelerator installed at Tohoku University as the main device, we configured a beam delivery system with a dosimeter and detectors and evaluated the irradiation field. We achieved controllable dose rates by adjusting the beam current based on X-ray counts. A system capable of evaluating variations in dosimeter responses corresponding to irradiation intensity was established by placing a compact dosimeter in the irradiation environment.