Refine your search:     
Report No.

Size distribution of radioactive particles collected at Tokai, Japan 6 days after the nuclear accident

Miyamoto, Yutaka  ; Yasuda, Kenichiro  ; Magara, Masaaki 

Airborne radioactive particles released by the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident in 2011 were collected with a cascade low-pressure impactor at the Japan Atomic Energy Agency (JAEA) in Tokai. Size-fractionated samples were collected twice, in the periods of March 17 - April 1, 2011, and May 9-13, 2011. These size-fractionated samplings were carried out in the earliest days at a short distance from the FDNPPs. Radioactivity of short-lived nuclides (several ten days of half-life) were determined as well as $$^{134}$$Cs and $$^{137}$$Cs. The elemental composition of size-fractionated samples was also measured. In the first collection, the activity median aerodynamic diameter (AMAD) of $$^{rm 129m}$$Te, $$^{134}$$Cs, $$^{136}$$Cs and $$^{137}$$Cs was 1.5-1.6$$mu$$m, while the diameter of $$^{131}$$I was 0.45$$mu$$m.



- Accesses




Category:Environmental Sciences



[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.