Disk Sources, standard General Information All our Radioisotope sources are NRC Exempt 'safety sealed' sources. The radioactive material in the disks cannot be removed or altered - it is fused and part of the plastic/epoxy disk. The disks..... more info
Isotope Disk set, 5 disk Our 5 disk radioisotope set contains a wide of alpha, beta and gamma emissions making it a popular choice for nuclear science instruction. The set contains two beta emitters, two beta/gamma emitters and one alpha source for.... more info
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