South Asia’s first proton therapy centre was launched in Chennai. Apollo Proton Cancer Centre, equipped with the path-breaking pencil beam technology, offers hope to cancer patients from India and abroad.  

• It is a type of radiation therapy which uses protons rather than x-rays to treat cancer.  
• It is considered as one of the most advanced forms of external beam radiation therapy for cancer treatment in the world.  
• It is also known as Proton Beam Therapy and offers high levels of precision as compared to other treatment options. 

Source: The Hindu