RG 5.34-84 相关标准章节.docxVIP

Publication Date: 5/1/84  Pages: 8  Date Entered: 10/4/84  Title: NONDESTRUCTIVE ASSAY FOR PLUTONIUM IN SCRAP MATERIAL BY SPONTANEOUS FISSION DETECTION (6/74)  Revision 1(*)  May 1984  U.S. NUCLEAR REGULATORY COMMISSION  REGULATORY GUIDE  OFFICE OF NUCLEAR REGULATORY RESEARCH  REGULATORY GUIDE 5.34  (Task SG 046-4) NONDESTRUCTIVE ASSAY FOR PLUTONIUM IN SCRAP MATERIAL  BY SPONTANEOUS FISSION DETECTION A. INTRODUCTION  Section 70.51, Material Balance, Inventory, and Records  Requirements, of 10CFR Part 70, Domestic Licensing of Special Nuclear  Material, requires certain licensees authorized to possess at any one  time more than one effective kilogram of special nuclear material to  establish and maintain a system of control and accountability so that  the standard error (estimator) associated with the inventory difference  (SEID), obtained as a result of a measured material balance, meets  minimum standards. This guide is intended for those licensees who  possess plutonium scrap materials and who are also subjected to the  requirements of Section 70.51 of 10 CFR Part 70.  Included in a typical material balance are containers of  inhomogeneous scrap material that are not amenable to assay by the  traditional method of sampling and chemical analysis. With proper  controls, the non-destructive assay (NDA) technique of spontaneous  fission detection is one acceptable method for the assay of plutonium in  containers of bulk scrap material. The use of spontaneous fission  detection thus facilitates the preparation of a complete plant material  balance whose SEID meets established requirements.  This guide describes procedures acceptable to the NRC staff for  applying the NDA technique of spontaneous fission detection to plutonium  in scrap.  Any guidance in this document related to information collection  activities has been cleared under