124 



RADIOISOTOPES IN BIOLOGY AND AGRICULTURE 



graphic procedures. In general, they should be stored well away from 

 the counting room and near the laboratory where the initial radiochem- 

 ical work is to be done. 



Beta emitters present no particular problem. As a matter of fact, the 

 nonreturnable containers in which they are shipped are entirely suitable 



Exhaust 

 blower 



Flange for mounting 

 4 " tubes for housing 

 columns 



Electric 

 power panel 



To hood 

 or duct 



Exhaust 

 outlet 



Fluorescent 

 lamp 



Service 

 inlets 



Equipment 

 frame 



Class 

 window 



Door 



Electric 

 outlets 



Airlock 



Plywood box- 

 heavily 

 enameled 

 inside 



Fig. 4-7. Gloved box. {From Donald R. Ward, Design of Laboratories for Safe Use of 

 Radioisotopes, AECU-2226, November, 1952. Courtesy of Atomic Energy Commission.) 



for routine storage. Special provision must be made for the gamma 

 emitters, however, since the shipping containers must be returned to the 

 supplier. A simple vault for this purpose may consist of a bank of holes, 

 cast in a concrete block, which accommodate the bottled isotopes and are 

 plugged with shielding blocks of iron or lead; or a barrel of sand containing 

 a pipe and shielding plug may be employed. Simple barricades of lead or 



