Barium-133   0.01   370,000   10,000

Barium-140   0.01   1,110,000   30,000

Bismuth-207   0.01   185,000   5,000

Bismuth-210   0.01   22,200   600

Cadmium-109   0.01   37,000   1,000

Cadmium-113   0.01   2,960   80

Calcium-45   0.01   740,000   20,000

Californium-252   0.001   333   9 (20 mg)

Carbon-14 (Non-CO2)   0.01   1,850,000   50,000

Cerium-141   0.01   370,000   10,000

Cerium-144   0.01   11,100   300

Cesium-134   0.01   74,000   2,000

Cesium-137   0.01   111,000   3,000

Chlorine-36   0.5   3,700   100

Chromium-51   0.01   11,100,000   300,000

Cobalt-60   0.001   185,000   5,000

Copper-64   0.01   7,400,000   200,000

Curium-242   0.001   2,220   60

Curium-243   0.001   110   3

Curium-244   0.001   148   4

Curium-245   0.001   74   2

Europium-152   0.01   18,500   500

Europium-154   0.01   14,800   400

Europium-155   0.01   111,000   3,000

Gadolinium-153   0.01   185,000   5,000

Germanium-68   0.01   74,000   2,000

Gold-198   0.01   1,110,000   30,000

Hafnium-172   0.01   14,800   400

Hafnium-181   0.01   259,000   7,000