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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Design of a Preamplifier Card for the Photomultiplier Tubes of a Gamma Camera
Jorge Luis Domínguez Martínez
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DOI:10.17265/2159-5348/2018.01.006
The Department of Nuclear Medicine, Surgical Clinical Hospital ‘‘Hermanos Ameijeiras’’, Havana 10300, Cuba
The service provided by the GC (Gamma Cameras) in the Nuclear Medicine departments fails because of their breakdown, generally due to the associated electronics and not to the physical detection components. For this reason, it was decided to develop an electronic system that allows the recovery and optimization of disused GC, starting with the design of the preamplifier for a PMT (photomultiplier tube). The circuit was designed and simulated and the list of components necessary for the construction of the preamplifier was generated, as well as the printed circuit board was designed for its assembly. By simulating the preamplifier this worked in linear mode. This determines that the amplitude of the output signal is proportional to the amount of charge delivered by the detector. This card allows an automatic adjustment of the signals of the PMT as do the modern GC.
Gamma camera, nuclear medicine, photomultiplier tube, preamplifier, Cuba.