Japan: Ra-226 Found at Tokyo Residence


On 31 October 2011, a woman residing in Higashiyama, Tokyo's Meguro Ward alerted the authorities that radiation was detected on a wooden box in a storeroom. Inside the box, which had been kept in the room for about 50 years, authorities discovered a small (2 cm in length and 3 mm in diameter) metal container with Ra-226. According to the Ministry of Education, Culture, Sports, Science and Technology, the material must have been produced for medical purposes. The container with the material was removed.

Note: For similar cases occurring recently in Japan, see cases 20111010 and 20110190.

Abstract Number: 20111013
Headline: Japan: Ra-226 Found at Tokyo Residence
Date: 12 November 2011
Bibliography: "Radium 226 sample found at Tokyo residence," Japan Today, 12 November 2011, www.japantoday.com
Material: Ra-226

April 26, 2012

This article is part of a collection examining reported incidents of nuclear or radioactive materials trafficking in or originating from the Newly Independent States.

This material is produced independently for NTI by the James Martin Center for Nonproliferation Studies at the Middlebury Institute of International Studies at Monterey and does not necessarily reflect the opinions of and has not been independently verified by NTI or its directors, officers, employees, or agents. Copyright 2018.