SUMMARY 



OF AVAILABLE RADIOISOTOPE PREPARATIONS 447 



Element 



Beryllium 

 Bismuth 



Bromine 

 Cadmium 



Calcium 



Carbon 

 Cerium 



Cesium 



Chlorine 



Cat. No. 



BaLa-UO-P 



Bo-7-P 



Bi-210-I 



Specific Ac- 

 tivity, mc/g 



CF 

 CF 



0.41 



Br-82-I 

 Cd- 11 5-1-1 



Cd-1 15-1-2 



Cd-115-P 

 Ca-45-I 



Ca-45-P-l 



Ca-45-P-2 



Ca-45-P-3 



Ca-45-P-4 



C-14-P 



Ce-141-I 



180 

 20 



>5 



0.28 



>0.2 

 >5 



> 1,000 

 CF 



160-1,200 

 7.1 



Ce-141-P 

 CePr-144-P 



Cs-134-I 



Cs-134-P 



CsBa-137-P 



CF 



CF 



37 

 > 3,000 

 CF 



Cost 



$2/mc Ba^"" 

 $40 /mc 

 $35/31 mc 



,S15/140 mc 

 $15/40 mc 



$45/2 mc 



$33 /mc 



$45/1.7 mc 



$2/mc 

 .$5/mc 

 $45 /mc 

 $4000 /mc 

 $36/mc 

 $45/5.8 mc 



Radiochemical 

 Contaminants 



Trace La"» (40 hr) 

 Trace C" (5568 yr) 

 La"" daughter (40 hr) 



31 mc Tl^^s daughter 



(4.19 min) 

 31 mc Po^i" daughter 



(138.3 days) 

 Trace Bi^i" (~10« yr) 

 5.3 mc K« (12.44 hr) 

 40 mc In '''5™ daughter 



(4.5 hr) 

 0.6mcCd"5"'(43days) 

 0.001 mcCd^'S"' (5.1 yr) 

 Trace Cdi^^ (470 days) 

 Trace Agio^™ (39.2 sec) 

 45 mc Cd"5 (53 hr) 

 45 mc In"5"' (4.5 hr) 

 0.003 mcCdi"'" (5.1 yr) 

 Trace Cd'^^ (470 days) 

 Trace Agi«^"' (39.2 sec) 



2.5 mc A3' (35 days) 

 Trace Ca" (1.1 X 10^ 



yr) 



Trace Ca*' (4.8 days) 

 Trace Sc" (3.43 days) 



$2/mc 

 $l/mc Cei" 



$45/18 mc 

 $l/mc 

 $.10/mc Cs^" 



C1-36-I 



8 X 10-5 $45/0.01 mc 



5.3 mc Cei" (33 hr) 

 5.3 mcPri" (13.7 days) 

 2.3 mc Cei" (36 hr) 

 2.3 mc Lai" (>400yr) 

 0.006 mc Cei39 (140 



days) 

 <10% Cei^-Pr"" 

 Pr"4 daughter (17.5 



min) 

 <10% Ce"> (33.1 



days) 



Ba'"™ daughter (2.6 



min) 

 220 mc K« (12.44 hr) 

 85 mc S^^ (87.1 days) 



