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U content in uranium-contaminated waste drums using 
methodYokoyama, Kaoru; Sugitsue, Noritake; Muroi, Masayuki*; Suzuki, Yasuo*
Radioisotopes, 62(1), p.1 - 17, 2013/01
Radioactive waste generated from nuclear fuel facilities must have the acceptance criterion of disposal. Although the ray measurement technique is expected as the measurement technique, the correction for the influences of the heterogeneous waste distribution was needed. Therefore, the computational technique using the ray of two energies emitted from U progeny nuclide (
Pa) was developed, and verified the validity with simulated waste. As a result, the relative error was less than 20%, and detection limit was 1.2 Bq/g.
Koibuchi, Hiroto; Dohi, Terumi; Ishiguro, Hideharu*; Hayashi, Masaru*; Senda, Masaki*
JAEA-Review 2008-034, 59 Pages, 2008/12
JAEA-Review-2008-034.pdf:10.61MB
Japan Atomic Energy Agency (JAEA) is supposed to draw up the plan for the disposal program of the very low-level radioactive waste and low-level radioactive waste generated from medical, industrial and research facilities. For instance, there are these facilities in JAEA, universities, private companies, and so on. JAEA has to get to know about the waste and its acceptance of other institutions described above because it is important for us to hold the licenses for the disposal program regarding safety assessment. This report presents the basic data concerning radioactive waste of research institutes etc. except RI waste, domestic and foreign information related to acceptance criteria for disposal of the low-level radioactive waste, the current status of foreign medical waste management, waste acceptance, and such. In this report, Japan's acceptance criteria were summarized on the basis of present regulation. And, the criteria of foreign countries, United States, France, United Kingdom and Spain, were investigated by survey of each reference. In addition, it was reported that the amount of waste from laboratories etc. for near-surface disposal and their characterization in our country. The Subjects of future work, the treatment of hazardous waste, the problem of the double-regulation (the Nuclear Reactor Regulation Law and the Law Concerning Prevention from Radiation Hazards due to Radioisotopes and Others) and the possession of waste were discussed here.
Ikeda, Satoshi*
RANDEC Nyusu, (77), P. 3, 2008/07
no abstracts in English
Zaima, Naoki; Sugitsue, Noritake; Takahashi, Nobuo; Yokoyama, Kaoru; Suzuki, Yasuo*; Muroi, Masayuki*
no journal, ,
no abstracts in English
Yokoyama, Kaoru; Zaima, Naoki; Takahashi, Nobuo; Sugitsue, Noritake; Suzuki, Yasuo*; Muroi, Masayuki*
no journal, ,
We have developed a new analysis method on measuring radioactivity of uranium (U) filled in waste drums using passive ray measurement. We proposed a new evaluation function which gives a unique relation between source positions and ray count rate.
