THE EFFECTS OF FISSION PRODUCT LEAKAGE OF THE NMSR PLANT

The distribution of fission products which would escape from the fuel in a defective pin into the primary coolant stream and concentrate in the purification and gaseous waste collection system is predicted. Once the distribution is known, the amount of products can be determined by normalization to a chosen radiation level. The well known corrosion properties of oxides coupled with AEC Bettis Plant tests of UO sub 2 allow one to predict, by theoretical means and empirical constants, the amount of fission products which can be expected as a function of the amount of fuel which is exposed. The extrapolation from the amount of fuel exposed to the number of pins which are leaking appears to be most difficult if not impossible as it would have to include the effects of the size and location of the defect, past history of the fuel, fuel operating conditions and pin location in the core. The results of this calculation should be taken as an expected distribution of products with leakage rather than a measure of the total pins leaking. The distribution and relative amounts of products are the quantities of interest rather than the number of pins. For ease of discussion and calculation, the equations are based on the amount of fuel, 1530 grams, in a pin operating at average power.(Author)

  • Corporate Authors:

    Babcock and Wilcox Company

    Atomic Energy Division
    Lynchburg, VA  USA  24504
  • Authors:
    • Montgomery, D W
  • Publication Date: 1958-5

Media Info

  • Pagination: 66 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00026123
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Contract Numbers: AT(30-3)-274
  • Files: TRIS
  • Created Date: May 4 1973 12:00AM