The solid sources we supply are securely encapsulated in heat-resistant, waterproof plastic disks 25mm in diameter and 4–6mm thick. The sample is deposited in a well that is then filled with an epoxy material, safely sealing in the radioactivity. Not available for sale in Canada. Set of eight.
Half-Life Radionuclide:
Cobalt-60 (Co-60), Solid Activity: 1 microcurie, Emission: beta, gamma, (T-1/2): 5.3 Years
Sodium-22 (Na-22), Solid Activity: 1 microcurie, Emission: alpha, gamma, (T-1/2): 2.62 Years
Manganese-54 (Mn-54), Solid Activity: 1 microcurie, Emission: alpha, gamma, (T-1/2): 303 Days
Cesium-137 (Cs-137), Solid Activity: 1 microcurie, Emission: alpha, gamma, (T-1/2): 30 Years
Barium-133 (Ba-133), Solid Activity: 1 microcurie, Emission: alpha, gamma, (T-1/2): 7.2 Years
Cadmium-109 (Cd-109), Solid Activity: 1 microcurie, Emission: alpha, gamma, (T-1/2): 453 Days
Cobalt-57 (Co-57), Solid Activity: 1 microcurie, Emission: alpha, gamma, (T-1/2): 270 Days
Mixture of Cs-137 & Zn-65 (for student testing), Solid Activity: 1 microcurie, Emission: alpha, gamma