Engineering Technician

Yes, you should be able to pursue B.Sc in radiotherapy after your Diploma provided you meet the minimum requirements to gain admission in B.Sc.
B.Sc Radiotherapy eligibility:
1) 10+2 (Medical) or equivalent with 55% marks.
2) Few institutes conduct entrance exam for admission.

Some of the M.Sc in Aircraft Technician courses which you could opt for are as follows:
1) M.Sc in Aeronautical engineering
2) M.Sc in Air Transport management
3) M.Sc in International tourism and Aviation Management
4) M.Sc in Air Safety Management
For a detailed list, please check online.

Hi,
You may expect very basic entry level jobs with a diploma. I will also suggest you to check the SOL to have an idea about the professions in demand and decide accordingly. The higher your qualification and skills better the chances.