FISSION PRODUCTS (unseparated) 245 



Fission products (unscparatod) 



Cat. No. 

 FP-P-1 



Description. The significant fission products include the following: 

 Sr««, Sr9"-Y9», Y^\ Zr«^-Nb9^ Tc««, Ru'"'\ Ru"'«-Rhi««, Cs'", Ce'''-Fr''\ 

 and Pm'^^ The preparation is a mixture of the mixed fission products 

 as nitrates in strong HNOs and is separated from heavy metals that have 

 been exposed for 40 to 60 days in the reactor and cooled only a short time. 

 The concentration is 1 to 25 mc of gross beta activity per milliliter, and 

 the cost is $1 per mc. The total solids run less than 10 mg/ml. 



It is difficult to interpret measurements of such an uncertain mixture 

 of activities, and ordinarily information is developed using the specific 

 radioisotope of interest. 



