Download RGUHS BSc Imaging Technology 2013 Sept 2nd Year 1353 Physics Of Radiology Question Paper

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Rajiv Gandhi University of Health Sciences, Karnataka

IT Year B.Sc. Imaging Technology Degree Examination — Aug 2013

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Time: 3 Hours Max. Marks: 40 Marks

Physics of Radiology

Q.P. Code : 1353

Your answers should be specific to the questions asked. Draw neat labeled diagrams wherever necessary

(Note : Both QP Codes 1353 and 1354 are to be answered within total duration of 3 hours)

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LONG ESSAYS (Answer any One) 1 x 10 = 10 Marks

1. State Inverse Square law as applied to a point Isotrophic source of any Electromagnetic radiation, prove the inverse square law using sphere model. If the Intensity of photons at a distance of one meter from a point isotrophic source is 100 photons/ cm²/ second, calculate the number of photons emitted by the source per hour.
2. Describe artificial radioactivity: Give an account of any two artificially produced radioactive Isotopes used in medicine under the following heads: a) Production b) Radioactive properties c) Application in the field of medicine.

SHORT ESSAYS (Answer any Three) 3 x 5 = 15 Marks

1. Rectification of A.C. voltage.

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2. Semiconductor diode.
3. Self Induction, Mutual Induction and their application.
4. Exponential nature of radioactive decay.

SHORT ANSWERS (Answer any Five) 5 x 3 = 15 Marks

1. Pair production.

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2. Hardening of x-rays.
3. Photo Electric absorption.
4. Electron volt, keV, MeV.
5. Linear attenuation coefficient and mass attenuation coefficient.
6. Structure of Nucleus.

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