Why cobalt 60 is used for treatment of cancer

Cobalt 60 is a radioactive isotope that emits powerful gamma rays. These rays can penetrate deep into human tissues and are used in radiotherapy machines to target and destroy cancer cells. Gamma rays damage the DNA of cancerous cells preventing them from dividing and spreading. At the same time doctors use focused doses to minimize harm to surrounding healthy tissues. Cobalt 60 therapy has been one of the most effective treatments for various cancers. It remains a cost effective and reliable option in many countries where advanced linear accelerators are not available making it vital in oncology treatment.