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DETECTORS FOR MEASUREMENT-2D/3D detectors
1.
Confocal point-source scanners
Translation of a point source focused to a
detector over the film.
Point by point measurements
Spatial resolution: 0.25-0.8 mm in diameter.
Film dosimetry-Readout (densitomer/scanner)
2.
Higher dimensional scanners
Translation of a line source focused to a line or
area detector array, over the film.
Spatial resolution: 0.34-0.042 mm in diameter
.
Important. BEFORE USE
1. Check response, spatial integrity,
18
Utretch 2016
susceptibility to image artifacts and
time needed to reach steady-state
operation conditions
Fiandra et al. Med. Phys.
33
, 4314 (2006)