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Friday, February 5, 2016

PAPER II BASIC PHYSICS RADIATION PHYSICS Dr. MGR University AUG 2015 Question Paper

Dr. MGR University AUGUST 2015 Question Paper
Subject : PAPER II – BASIC PHYSICS, RADIATION PHYSICS 

[LH 0815]  Sub. Code: 1907
B.Sc. RADIOTHERAPHY TECHNOLOGY
(New Syllabus 2014-2015)
FIRST YEAR
PAPER II – BASIC PHYSICS, RADIATION PHYSICS AND
BASIC OF CLINICAL RADIOGRAPHY / IMAGING
Q.P. Code: 801907
Time : Three Hours Maximum : 100 marks
Answer ALL questions
I. Elaborate on: (3 x 10 = 30)
 1. Describe the construction and working of a Modern X ray tube.
 2. With the help of neat sketch describe the working principles of Image
 intensifier tube used in fluoroscopic imaging.
 3. Explain in detail about the different type of interaction of X and Gamma
 radiation with matter.
II. Write notes on: (8 x 5 = 40)
 1. Ionization and Excitation.
 2. Bremsstrahlung X ray spectrum.
 3. Quality and intensity of X rays.
 4. Exponential Decay of radioactivity.
 5. X ray film construction.
 6. Alpha and Beta decay with examples.
 7. Basic theory of Tomography.
 8. Advantages and disadvantages of MRI.
III. Short Answers on: (10 x 3 = 30)
 1. Define one Joule.
 2. Define atomic number and mass number.
 3. State coulomb’s and Ohm’s laws of Electricity.
 4. Natural and artificial radioactivity.
 5. Define Half life of radioactivity materials.
 6. Define Specific activity in radioactive materials
 7. Define Linear and mass attenuation coefficient.
 8. Half value and Tenth value layer.
 9. Bio effects of MRI.
10. What is SPECT?
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