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Orthogonal ray imaging is a new technique under investigation by our groups. It shows good potential for (1) dose verification in external beam radiotherapy, and (2) very-low-dose computed tomography (CT-like) imaging, the latter being investigated here. We present simulated (Geant4) and experimental orthogonal ray imaging results of the visualization of a heterogeneous phantom irradiated from both...
Orthogonal-ray imaging is a new technique under investigation by our groups. It shows good potential for (1) dose verification in external beam radiotherapy, and (2) very-low-dose computed tomography (CT-like) imaging. Here, we report on scanned, collimated measurements performed with LYSO crystals coupled to a phototransistor (PT), the latter fully substituting the photomultiplier tube (PMT). The...
Orthogonal ray imaging is a new technique under investigation by our groups. It shows good potential for (1) dose verification in external beam radiotherapy and (2) very-low-dose computed tomography (CT-like) imaging. We have simulated with Geant4 the performance of four flat-panel-like perfect detectors for evaluating the capabilities of orthogonal ray imaging and portal imaging for assisting external...
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