TY - JOUR ID - 47359 TI - Modelling and Image Reconstruction Evaluation of a Scintillation Camera with Silicone Photomultiplier JO - Journal of Biomedical Physics and Engineering JA - JBPE LA - en SN - AU - Md Ali, Sham FIrdaus AU - Saripan, M. Iqbal AU - Muhammad Noor, Ahmad Shukri AU - Rokhani, Fakhrul Zaman AU - Hashim, Suhairul AU - Xianling, Dong AD - PhD Candidate, Faculty of Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia AD - PhD, Faculty of Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia AD - PhD, Faculty of Science, University Teknologi Malaysia, Skudai, Johor, Malaysia AD - PhD, Department of Biomedical Engineering, Chengde Medical University, Chengde, Hebei, China Y1 - 2022 PY - 2022 VL - 12 IS - 2 SP - 117 EP - 126 KW - Gamma Cameras KW - Silicone Photomultiplier (SiPM) KW - Photomultiplier Tubes (PMT) KW - Image reconstruction KW - Filter Back-Projection KW - Radionuclide Imaging KW - Scintillation Counting DO - 10.31661/jbpe.v0i0.2009-1183 N2 - Background: Recent research on photon detection has led to the introduction of a silicone photomultiplier (SiPM) that operates at a low voltage and is insensitive to magnetic fields. Objective: This work aims to model a scintillation camera with a SiPM sensor and to evaluate the camera reconstructed images from gamma ray projection data.Material and Methods: The type of study in this research is experimental work and analytical. The scintillation camera, modelled from an SiPM sensor array SL4-30035, coupled with a scintillation material Caesium Iodide doped with Thallium (CsI(Tl)), is used in the experimental part. The performance of the camera was evaluated from reconstructed images by a back-projection technique of a radioactive source Caesium-137 (Cs-137). Results: The experiments conducted with a 1 µCi Cs-137 radioactive source have revealed that the bias voltage (Vbias) of the SiPM needs to be set to 27.8 V at an operating temperature between 43 °C to 44 °C. The radioactive source has to be placed within a 1 cm distance from the sensor to obtain the optimum projection data. Finally, the back-projection technique for image reconstruction with linear interpolation pre-processing has revealed that the Ram-Lak filter produces a better image contrast ratio compared to others. Conclusion: This research has successfully modelled a scintillation camera with SiPM that was able to reconstruct images with an 86.4% contrast ratio from gamma ray projection data. UR - https://jbpe.sums.ac.ir/article_47359.html L1 - https://jbpe.sums.ac.ir/article_47359_f2cd052eb91d013368535563d70e3ce3.pdf ER -