NALANDA OPEN UNIVERSITY
Annual Examination, 2017
Certificate in Radiography and Imaging Technique (CRIT)
PAPER-II
(Radiation Physics, Radiation Biology and Radiation Safety)
Time 3 Hours. Full Marks 80
Answer any Five Questions. All questions carry equal marks.
1. Describe about cancer cell. Explain properties of a cancer cell.
2. What are Electron, Proton and Neutron? How do they differ from each other?
3. Write short notes on:
a. DNA
b. Film Badge
4. Discuss the properties Alpha, Beta and Gama Rays.
5. Describe briefly Radiation Hazard Evaluation Control.
6. Discuss the difference between X-ray and ordinary sun light.
7. Write short notes on any four of the following
i. Isotopes
ii. Quenching
iii. Photo electric absorption
iv. Beam filter
v. Pair Production
vi. TLD Badge
8. Write the difference between decay constant and half life.