Californium

                

• A silvery white actinide metal with symbol Cf having atomic number 98 and also possess a radioactive characteristics.
• Californium was named after it was discovered in California.
• Californium-252 is used commercially as a reliable, cost-effective neutron source for prompt gamma neutron activation analysis(PGNAA) of coal, cement, and minerals.
• Californium-252 radio isotopic neutron source capsules have been used for Brachytherapy treatment of radio resistant tumors.
• Californium is produced in nuclear reactors and particle accelerators.