Radiation protection of mox-fuel by doping with 231Pa and 232U

✍ Scribed by E.F. Kryuchkov; V.B. Glebov; V.A. Apse; A.N. Shmelev

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 499 KB
• Volume: 47
• Category: Article
• ISSN: 0149-1970
• DOI: 10.1016/j.pnucene.2005.05.072

✦ Synopsis

The paper addresses the problem of MOX-fuel self-protection at the "Spent Fuel Standard" level and more during full cycle of MOX-fuel management. Under conditions of the closed LWR cycle the proliferation-resistance levels were evaluated for fresh and spent MOX-fuel doped with 231pa and 232U. According to the evaluations, it was derived that cyclic regime with Pa-U feeding at the level of 5% HM makes it possible to achieve the proliferation resistance of fresh MOX-fuel at the level high enough to protect it against short-term unauthorized actions (receiving the lethal dose for about 10 minutes in the vicinity of MOX-fuel assembly) and also against the acts of terrorism (receiving the shock lethal dose for a few minutes).