Presentation Information

[11a-A24-8]Particle size evaluation of laser-decontaminated dust based on laser scattering signals

Keisuke Yamamoto1, Atsushi Kosuge2, 〇Takashi Nakajima1 (1.Kyoto University, 2.JAEA(Tsuruga))

Keywords:

laser decontamination,laser scattering,particle size of dust

Laser decontamination requires efficient collection of radioactive dust, for which understanding the size and behavior of individual particles is essential. Previous laser light scattering experiments in water using polystyrene standard particles with known diameters confirmed reliable detection up to 390 nm and measurements at the detection limit even for 190 nm particles. In this presentation, we investigate whether airborne particles generated by nanosecond pulsed laser irradiation of uncontaminated stainless steel can be individually detected and their size evaluated by laser scattering.