Dr. MGR University AUGUST 2012 Question Paper
Subject : PAPER II – IMAGE PROCESSING TECHNIQUES
[LB 0212] Sub. Code: 2111B.Sc. NUCLEAR MEDICINE TECHNOLOGY
FIRST YEAR
PAPER II – IMAGE PROCESSING TECHNIQUES
Q.P. Code: 802102
Time : Three Hours Maximum : 100 marks
(Answer ALL questions in the same order.
I. Elaborate on: Pages Time Marks
(Max.) (Max.) (Max.)
1. Describe an uptake probe and explain it’s working with
respect to I131 uptake studies. 7 20 min. 10
2. Describe the energy resolution of Gamma spectroscopy
system. 7 20 min. 10
3. Describe the basic principle of rectilinear scanner and
focused collimator for scanning. 7 20 min. 10
II. Write notes on:
1. Describe the quality control tests for a Gamma camera –
flood field uniformity, total system uniformity. 4 10 min. 5
2. Explain briefly multicrystal camera. 4 10 min. 5
3. Explain briefly liquid scintillation detectors. 4 10 min. 5
4. Define Auger electron its relationship atomic number
and its energy. 4 10 min. 5
5. Explain briefly calibration of a spectrometer. 4 10 min. 5
6. Explain the ionization chamber and GM counter and
their uses in nuclear medicine. 4 10 min. 5
7. Define Compton scattering. Explain its mechanism and
significance in nuclear medicine and how to suppress them. 4 10 min. 5
8. Describe the principle of Geiger Muller survey meter its
uses, and its limitations. 4 10 min. 5
III. Short answers on:
1. Define hand held Gamma probe and material used for the probe. 2 4 min. 3
2. Describe Gray scale display. 2 4 min. 3
3. Define dead time, paralysable and non-paralysable systems. 2 4 min. 3
4. Define Roentgen, Gray, and L.E.T. 2 4 min. 3
5. Describe the coincidence detection. 2 4 min. 3
6. Explain septal thickness of collimator with respect to resolution. 2 4 min. 3
7. Describe the Chi square test with respect to P value. 2 4 min. 3
8. Describe briefly the dot factor in imaging of radioactivity. 2 4 min. 3
9. Describe collimator focus. 2 4 min. 3
10. Explain briefly rate meter-time constant. 2 4 min. 3
*******
Dr. MGR University AUGUST 2013 Question Paper
Subject : PAPER II – IMAGE PROCESSING TECHNIQUES
[LD 0212] Sub. Code: 2111B.Sc. NUCLEAR MEDICINE TECHNOLOGY
SECOND YEAR
PAPER I – PHYSICS OF NUCLEAR MEDICINE INSTRUMENTATION
Q.P. Code: 802111
Time : Three Hours Maximum : 100 marks
Answer ALL questions
I. Elaborate on: (3 x 10 = 30)
1. System resolution, system sensitivity and matrix size and its relationship in image
quality of gamma camera.
2. Single channel analyzer, multichannel analyzer and window settings.
3. Different parts and working principle of rectilinear scanner.
II. Write notes on: (8 x 5 = 40)
1. Geiger Muller counter.
2. Survey meter with ionization chamber.
3. Liquid scintillation detector.
4. Shielding requirements for well counter.
5. Precision and Accuracy.
6. Gray curve and film density.
7. Information density in bone scan.
8. Poison distribution.
III. Short Answers on: (10 x 3 = 30)
1. Percent standard deviation.
2. Scan speed in bone scan.
3. Timer in spectrometer.
4. Septa thickness in collimator.
5. Dynodes in photo multiplier tube.
6. Proportional counter.
7. Semiconductor detectors.
8. Types of measurement error.
9. Geometric efficiency of collimator.
10. Statistical tests.
*******
Dr. MGR University FEBRUARY 2014 Question Paper
Subject : PAPER II – IMAGE PROCESSING TECHNIQUES
[LE 0212] Sub. Code: 2111B.Sc. NUCLEAR MEDICINE TECHNOLOGY
SECOND YEAR
PAPER I – PHYSICS OF NUCLEAR MEDICINE INSTRUMENTATION
Q.P. Code: 802111
Time : Three Hours Maximum : 100 marks
Answer ALL questions
I. Elaborate on: (3 x 10 = 30)
1. Instrumentation and working principle of Rectilinear Scanner.
2. Different collimators used in Gamma Camera.
3. Chi-square statistical test and its application.
II. Write notes on: (8 x 5 = 40)
1. Isotope Calibrator.
2. Well counter.
3. Single channel pulse height analyzer.
4. Gamma energy spectrum and window settings for counting.
5. Gaussian distribution.
6. Rate meters in Rectlinear Scanner.
7. Uniformity in Gamma camera.
8. Photo multiplier tube.
III. Short Answers on: (10 x 3 = 30)
1. Ionization chamber.
2. Thallium activated sodium iodine crystal.
3. Application of pre-amplifier.
4. Precision in statistics.
5. Septa thickness.
6. Cathode ray tube.
7. Spatial resolution of collimator in gamma camera.
8. Focal length of collimator in rectilinear scanner.
9. Radionuclide I-131.
10. Field of view.
*******
Dr. MGR University AUGUST 2014 Question Paper
Subject : PAPER II – IMAGE PROCESSING TECHNIQUES
[LF 0212] Sub. Code: 2111B.Sc. NUCLEAR MEDICINE TECHNOLOGY
SECOND YEAR
PAPER I – PHYSICS OF NUCLEAR MEDICINE INSTRUMENTATION
Q.P. Code: 802111
Time : Three Hours Maximum : 100 marks
Answer ALL questions
I. Elaborate on: (3 x 10 = 30)
1. Explain the different types of collimators used in Gamma Camera.
2. Explain about the single channel analyzer , multi channel analyzer & window settings.
3. Explain the principle and working of a scintillation detector.
II. Write notes on: (8 x 5 = 40)
1. Ionization Chamber.
2. Scintillation detector.
3. Well type counter.
4. Pre amplifier.
5. Data processing and their functions.
6. Spectra of Tc-99m and Cr-51.
7. Different Statistical test.
8. System Resolution.
III. Short Answers on: (10 x 3 = 30)
1. Dead Time correction in G M tube.
2. Pre amplifier.
3. Standard deviation.
4. Figure of merit.
5. Scan speed.
6. Types of measurement errors.
7. Septa thickness in collimators.
8. Precession and accuracy.
9. Poison and Gaussian distribution.
10. Application of cathode ray tube.
*******
Dr. MGR University FEBRUARY 2015 Question Paper
Subject : PAPER II – IMAGE PROCESSING TECHNIQUES
[LG 0212] Sub. Code: 2111B.Sc. NUCLEAR MEDICINE TECHNOLOGY
SECOND YEAR
PAPER I – PHYSICS OF NUCLEAR MEDICINE INSTRUMENTATION
Q.P. Code: 802111
Time : Three Hours Maximum : 100 marks
Answer ALL questions
I. Elaborate on: (3 x 10 = 30)
1. Describe with basic principle, design and working of Gamma camera.
2. Explain the working principle of G.M. Counter.
3. Explain the principle and working of a scintillation detector.
II. Write notes on: (8 x 5 = 40)
1. Ionization Chamber.
2. Liquid scintillation detector.
3. Pulse height analyzer.
4. Spectra of Tc-99m and I-131.
5. Integral and differential counting.
6. Different statistical tests.
7. System resolution.
8. Multi crystal scanners.
III. Short Answers on: (10 x 3 = 30)
1. Shielding requirement of well counter.
2. Window setting.
3. Standard deviation.
4. Figure of merit.
5. Gray curve.
6. Septa thickness in collimators.
7. Scan speed.
8. Geometric efficiency of collimators.
9. Precision and accuracy.
10. Pre amplifiers.
*******
Dr. MGR University AUGUST 2015 Question Paper
Subject : PAPER II – IMAGE PROCESSING TECHNIQUES
[LH 0815] Sub. Code: 2111B.Sc. NUCLEAR MEDICINE TECHNOLOGY
SECOND YEAR
PAPER I – PHYSICS OF NUCLEAR MEDICINE INSTRUMENTATION
Q.P. Code: 802111
Time : Three Hours Maximum : 100 marks
Answer ALL questions
I. Elaborate on: (3 x 10 = 30)
1. Explain about the single channel analyzer, multi channel analyzer and window settings.
2. Different collimators used in Gamma Camera.
3. Explain different types of detectors, its uses and applications.
II. Write notes on: (8 x 5 = 40)
1. Isotope Calibrator.
2. Explain briefly multicrystal camera.
3. Rate meters in Rectilinear Scanner.
4. Gamma energy spectrum and window settings for counting.
5. Photo multiplier tube.
6. Factors affecting detection efficiency of a radiation measuring instrument.
7. Explain briefly calibration of a spectrometer.
8. Data processor and their function.
III. Short Answers on: (10 x 3 = 30)
1. Coincidence detection.
2. Thallium activated sodium iodine crystal.
3. Application of pre-amplifier.
4. Hand held Gamma probe.
5. Film density.
6. The dot factor in imaging of radioactivity.
7. Spatial resolution of collimator in gamma camera.
8. Focal length of collimator in rectilinear scanner.
9. Radionuclide Iodine-131.
10. Field of view.
*******
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