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Current Status and Reclamation Plan of Former Uranium Mining and Milling Facilities at Ningyo-Toge in Japan (open access)

Current Status and Reclamation Plan of Former Uranium Mining and Milling Facilities at Ningyo-Toge in Japan

The Japan Nuclear Cycle Development Institute (JNC) conducted research and development projects on uranium exploration in Japan from 1956 to 1987. Several mine facilities, such as waste rock yards and a mill tailing pond, were retained around Ningyo-toge after the projects ended. Although there is no legal issue in the mine in accordance with related law and agreements at present, JNC has a notion that it is important to reduce the burden of waste management on future generations. Thus, the Ningyo-toge Environmental Engineering Center of JNC proposed a reclamation plan for these facilities with fundamental policy, an example of safety analysis and timetables. The plan has mainly three phases: Phase I is the planning stage, and this paper corresponds to this: Phase II is the stage to perform various tests for safety analysis and site designing: Phase III is the stage to accomplish measures. Preliminarily safety analyses suggested that our supposed cover designs for both waste rock and m ill tailing are enough to keep dose limit of 1mSv/y at site boundaries. The plan is primarily based on the Japanese Mine Safety Law, also refers to ICRP recommendations, IAEA reports, measures implemented overseas, etc. because this is the first case …
Date: February 27, 2003
Creator: Sato, Kazuhiko & Tokizawa, Takayuki
Object Type: Article
System: The UNT Digital Library

Oral History Interview with J. D. Bradley, June 27, 2003

Access: Use of this item is restricted to the UNT Community
Interview with postmaster and Army veteran J.D. Bradley. The interview includes Bradley's personal experiences about being a guard during the International Military Tribunal for the Far East in Tokyo after World War II, enlisting in the army, basic training, various assignments, guard duty in the court docks during the tribunal, and guarding Hideki Tojo. Bradley talks about rules and regulations for Military Police guards, steps taken to prevent suicides among the prisoners, the physical description of the interior of the courtroom of the War Ministry Building, checks for hidden weapons in the courtroom, courtroom procedures, various security procedures, steps taken to impress the Japanese people, living quarters and conditions at the War Ministry Building, relations with Japanese civilians, black market activities, his relationship with a Japanese correspondent and trading cigarettes for photographs of the proceedings, Sugamo Prison, and his commanding officer, Lt. Col. Aubrey S. Kenworthy. The interview includes an appendix with photographs.
Date: June 27, 2003
Creator: Koontz, Christopher N. & Bradley, J. D.
Object Type: Book
System: The UNT Digital Library