FEBRUARY 2017 Sub. Code: 1823
B.Sc. RADIOLOGY IMAGING TECHNOLOGY
SECOND YEAR
PAPER III RADIOBIOLOGY AND RADIATION SAFETY
Q.P. Code: 801823
Time: Three Hours Maximum: 100 Marks
Answer all questions
I. Elaborate on: x 10 30)
1. Describe in detail about the artificial sources of radiation and corresponding
average annual human exposure to ionizing radiation.
2. Describe the Direct and Indirect action of radiation on biological molecules.
3. Discuss the personnel requirements and responsibilities given in AERB
safety code for diagnostic radiology.
II. Write notes on: x 5 40)
1. Explain briefly about sources of background ionizing radiation.
2. Explain the radiation dose response relationships.
3. Discuss about genetic effects of radiation.
4. Discuss the safety specifications for Mammography Installation with a neat
layout diagram as per AERB safety guidelines.
5. Write the does limits recommended by the ICRP 2007 Recommendations.
6. Compare the risk of radiation with other industries.
7. Advantage and disadvantage of pocket dosimeter.
8. Write the specifications for protective devices used in diagnostic radiology
department.
III. Short answers on: (10 x 3 30)
1. Three principles of radiation protection.
2. International Agencies responsible for Radiation safety.
3. What is meant by ALARA? Explain its significance.
4. What is Absolute Risk? Mention the absolute risk of a fatal radiation-induced
malignant disease?
5. Linear Energy Transfer and Radio sensitivity.
6. Radiation effects on eye and current dose limit.
7. Workload and Workload distribution.
8. Controlled and uncontrolled area.
9. Warning Light and Placard.
10. AERB Safety specifications for mobile Radiography systems.