Syllabus

IV. Image Formation (continued)

7. Radioisotope Imaging - Primary signal
1. Collimator designs
1. Isotope concentration projection
2. Self absorbtion
3. Geometric collimation
1. Probe systems
2. Scanner systems
3. Pinhole imaging collimation
4. Multi-hole imaging collimation
2. Parallel hole collimator resolution
1. Transmission point spread function (PSF)
2. d/l and distance effects
3. PSF derived from ray tracing
3. Parallel hole collimator efficiency
1. solid angle derivation - point source
2. solid angle derivation - distributed source
3. septal thickness effect
4. hole shape factor
5. efficiency versus resolution
6. Units.
1. Point source - counts/sec/Bq
2. Distributed source - (counts/sec)/(Bq/area)
4. Electronic Collimation (Compton Camera)
1. Source position from a conic surface
2. Compton cameras
3. Astronomy Compton Telescopes
4. Astronomy Compton Telescopes
5. Coded Aperture Collimation
1. Time coded sequences
2. Spatially coded sequences
8. Effects of Scattered Radiation
1. Scatter signal - emission imaging
1. Compton scatter, E vs angle
2. Incident energy distribution with scatter
3. Rejection by energy discrimination, dE
4. Scatter spatial distribution vs dE
2. Contrast reduction
1. Scatter to primary ratio, S/P
2. Contrast reduction vs S/P
3. Scatter spatial distribution (PSF)
1. Primary PSF
2. Scatter PSF
3. integral PSF tails
3. Scatter signal - radiography
1. Radiation scattered within the object
2. Anti-scatter grids
1. 1D grid ratio and frequency
2. 1D Grid solid angle
3. S/P with and without grids
4. Scanned slit, S/P
3. Contrast improvement
4. Other methods for scatter rejection
1. collimation(cone views)
2. air gap
3. slot scan
4. Reverse geometry (source/detector)