(source: https://www.rsc.org/periodic-table/element/98/californium) Californium 252 is a powerful neutron emitter. It is used as a neutron source either as the metal (Californium-252 Neutron Source And Method Of Making Same (1972)), or alloy (Californium-Palladium Metal Neutron Source Material (1974)). Californium 252 neutron sources can be used: in Brachytherapy (Dosimetry For Californium-252 (<252>Cf) Neutron-Emitting Brachytherapy Sources And Encapsulation, Storage, And Clinical Delivery Thereof (2001)), for in vivo neutron activation analysis of calcium and phosphorus in human bone (Calcium And Phosphorus Irradiation Esp. For In-Vivo Investigation – Uses Californium As Neutron Source For Highly Localised Target (1978)), for neutron activation analysis of valuable elements in drill cores (Analytical Equipment For Zone Assays Of The Content Of Valuable Elements In Boring Kernels (1974)), or simultaneous non-destructive neutron and gamma ray radiography (Neutron And Gamma Rays Simultaneous Radiography Utllizing Californium-252 And Device Used In Said Radiography (1983)). Return to the Interactive Periodic Table of Patents References:All patent information has been obtained from Espacenet (European Patent Office).