After BSc Physics if you want to go for Radiology and cancer research related courses I would recommend you to go for MSc Medical Physics offered by IIT Kharagpur in collaboration with Tata Cancer Research Hospital. By pursuing this course you will get both the exposure in Radiation technology and the exposure to work in hospitals. The course have options for you to work in Tata Cancer Research center as Intern, which is a great advantage I think. So if you wish to go for this field then I would recommend this course for you. For this course you have to prepare for IIT JAM examinations and if you can do it then your future in the field will be more prosperous.

For more information copy paste the link below on your browser:

http://www.iitkgp.ac.in/files/jpmm_mp.pdf

To know more about IIT JAM visit the link below:

https://university.careers360.com/exams/jam

I hope this answer helps. All the very best for your future endeavors!

I hope this answer helps. All the very best for your future endeavors!