Characterization and functional test of a micro dosimeter of scintillating optical fibers
March 18, 2022
As demand increases for better and improved techniques for cancer treatment in Portugal, there is an ongoing discussion on the need to build a proton therapy center, as well as to train skilled workers in this field. As a result, there is the need for high precision measurement instruments that provide real-time absorbed dose measurements on the patients at tissue or DNA level.
The goal of the present work is to develop a new detector capable of measuring real-time absorbed dose with sub-millimeter resolution. The device is constructed using juxtaposed thin scintillating plastic optical fibers (SPOF) readout by a multi-anode photomultiplier (MAPMT, 64 channels) and a suitable data acquisition (DAQ) system. In this article, we discuss the characterization of the full detection chain: SPOFs, MAPMT and DAQ.
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