32. 



in the handbook? And how does heat output vary with the half-life or 

 with the life of radioactivity? Is it maximum at the start and does 

 it fall off with time ? 



DR. CHRISTY: The heat follows the same trend as the radia- 

 tion. It declines along the same curve, essentially. 



MR. W. LINDSEY: Regarding the heat figures: the high level 

 wastes that we allow to boil, will continue to boil for a period, of 

 roughly ten years before the heat generation falls to a point where 

 heat losses to the ground will stop the boiling -- and the boiling is 

 fairly brisk. 



CHAIRMAN HESS: Are there any further questions? 



We have one more speaker this afternoon, but we have gone for 

 an hour and a half. Let's take a ten-minute breather and come back. 



■ • • Jt\.6 C 6 S S • • • 



CHAIRMAN HESS: I would like to call on Dr. Culler of Oak 

 Ridge, as our next speaker. 



Dr. Floyd Li. Culler, Jr., Director 

 Chemical Technology Division 

 Oak Ridge National Laboratory 

 P.O. Box P 

 Oak Ridge, Tenn. 



(Dr. Culler presented an informal review of principles 

 and processes involved in reactors and chemical proces- 

 sing. The types of reactors and fuel purification processes 

 are numerous and yield a varied assortment of waste solu- 

 tions, each with somewhat different disposal characteristics. 

 The relationship between the predicted optimum sizes of 

 power reactors and fuel processing plants suggests that the 

 most economical arrangement would be for one chemical 

 plant to process the material from 5-15 reactors; this would 

 localize the principal production of waste but require well- 

 shielded transportation of fuel elements . ) 



(The information given by Dr. Culler has been covered in 

 the references given below, and in the -works referred to in 

 bibliographies contained in these references.) 



