Designing and Fabrication of Switching High Voltage Power Supply for Nuclear Medicine Imaging Systems
Publish place: Third National Conference and First International Conference on Applied Research in Electrical, Mechanical and Mechatronics Engineering
Publish Year: 1394
Type: Conference paper
Language: English
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Document National Code:
ELEMECHCONF03_0363
Index date: 30 July 2016
Designing and Fabrication of Switching High Voltage Power Supply for Nuclear Medicine Imaging Systems abstract
This paper describes design considerations of the High voltage (HV) module with low ripple and good stability in order to improve the efficiency of nuclear imaging systems consist of Single Photon Emission Computed Tomography (SPECT). In the design of the current HV module, push-pull topology is preferred, due to the fact; it has a better efficiency in comparison with other technologies. The module receives a positive continuous voltage about 5-8 V as input, and provides a programmable positive or negative continuous voltage from 800-2500 V as output for a total load of 200-KΩ. The ripple of the output voltage is 10 mV that it is measured by laboratory equipments and safe high voltage (SHV) probe. The measured output power in the designed module is 25 W. Experiment results show that minimum efficiency at full load is around 65%. The proposed HV module shows a good stability, low ripple (noise), fast rise time. So, it can be used in SPECT or gamma camera imaging system to provide the constant voltage for PMTS.
Designing and Fabrication of Switching High Voltage Power Supply for Nuclear Medicine Imaging Systems Keywords:
Designing and Fabrication of Switching High Voltage Power Supply for Nuclear Medicine Imaging Systems authors
Mosa Moradi
Department of Medicine Engineering, Shahid Beheshti University, Tehran, Iran
Zeynab Arvaneh
Department of Power Engineering, Islamic Azad University, Ilam,Iran