Design and first results of a scintillator-based, integrated mode proton imaging detector using 2D lateral projections
Speaker: Ryan Fullarton
Abstract
Integrated mode proton imaging shows promise as a low-cost and simpler alternative to the comparatively complex and expensive single-event proton imaging. However with this benefit comes the compromise of dose efficiency and image quality. This work describes the design and construction of an integrated mode proton imaging detector based on a 20 x 20 x 25 cm monolithic scintillator and two optical cameras. The optical cameras were focused onto the center of the scintillator block, using 5 mm focal length lenses at a working distance of 50 cm. High reflectivity optical mirrors allow acquisition from two orthogonal directions with a depth of field to cover the full depth of the scintillators. The two views are acquired simultaneously through the use of a photosensitive trigger mechanism to acquire images of individual pencil beams which are then reconstructed using an analytical reconstruction algorithm. Here we present the first results from the detector.
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