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