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. Author manuscript; available in PMC: 2008 Aug 11.
Published in final edited form as: Med Phys. 2008 Jan;35(1):101–111. doi: 10.1118/1.2804616

FIG. 2.

FIG. 2

Schematic of the OCTOPUS™-scanner. A single laser beam scans the dosimeter in rastering fashion. A one-dimensional projection (attenuation of the laser light in the horizontal direction) is acquired at each step. The dosimeter is then incrementally rotated and another one-dimensional projection is acquired. The data from multiple such one-dimensional projections over a 360° scan are used to reconstruct attenuation coefficients of the dosimeter for one slice. Data for multiple such slices are obtained for 3D dose-readout.