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In recent years a great deal of attention was given to the Hamamatsu Position Sensitive PMTs, due to their suitability for building compact and high resolution gamma cameras. In this framework a great number of solution was proposed for the readout, that vary from the analog readout made with a resistive chain, in some cases including a hardware threshold, to fully digital readouts that read each...
In a preceding work a new compact gamma camera based on the Hamamatsu H8500 PSPMT and on a custom developed electronics was presented. The core element of such electronics is a microcontroller that operates the transfer of the sampled data to a PC using a USB link in full speed modality. This transfer utilizes on one side a firmware that controls the operation performed by the microcontroller and...
We have developed a LaBr3:Ce scintillator array consisting of 8 ?? 8 pixels with a size of 5.8 mm??5.8 mm??15.0 mm, which serves as an absorber of scattered gamma rays with energies from 0.1 to 1 MeV in a Compton camera. The pixels were cut from two pieces of LaBr3:Ce crystal with a diameter of 38 mm and a length of 38 mm with full width at half-maximum (FWHM) energy resolutions of 4.1 ?? 0.1% and...
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