FEBRUARY 2018 Sub. Code: 1414
DIPLOMA IN RADIOLOGY IMAGING TECHNOLOGY
SECOND YEAR
PAPER IV QUALITY CONTROL IN RADIOLOGY AND
RADIATION SAFETY
Q.P. Code: 841414
Time Three Hours Maximum 100 Marks
Answer All questions.
I. Elaborate on: x 10 30)
1. Biological effects of radiation.
2. Personnel protection in radiography units.
3. How can radiation be controlled with changes in time, distance and shielding?
II. Write notes on: (10 x 5 50)
1. Construction of dark room.
2. Radiation Units.
3. What is equivalent dose?
4. What are the guidelines for using film badge?
5. Explain about area monitoring.
6. Image quality tests in PET-CT.
7. Measurement of CT dose index.
8. Pocket dosimeter.
9. Natural sources radiation.
10. Commonly used radiation safety instruments.
III. Short answers on: (10 x 2 20)
1. What is ALARA?
2. What is Roentgen?
3. Define Exposure.
4. What is Lead equivalence?
5. Draw the X-ray radiation warning sign.
6. Write short notes on Thermo Luminescence Dosimeter.
7. 10 day rule.
8. Pin prick test for HDR brachytheraphy.
9. Contrast sensitivity of flouroscopy unit.
10. Focal spot size assessment.