Md Ali, Sham FIrdaus, Saripan, M. Iqbal, Muhammad Noor, Ahmad Shukri, Rokhani, Fakhrul Zaman, Hashim, Suhairul, Xianling, Dong. (1401). Modelling and Image Reconstruction Evaluation of a Scintillation Camera with Silicone Photomultiplier. سامانه مدیریت نشریات علمی, 12(2), 117-126. doi: 10.31661/jbpe.v0i0.2009-1183
Sham FIrdaus Md Ali; M. Iqbal Saripan; Ahmad Shukri Muhammad Noor; Fakhrul Zaman Rokhani; Suhairul Hashim; Dong Xianling. "Modelling and Image Reconstruction Evaluation of a Scintillation Camera with Silicone Photomultiplier". سامانه مدیریت نشریات علمی, 12, 2, 1401, 117-126. doi: 10.31661/jbpe.v0i0.2009-1183
Md Ali, Sham FIrdaus, Saripan, M. Iqbal, Muhammad Noor, Ahmad Shukri, Rokhani, Fakhrul Zaman, Hashim, Suhairul, Xianling, Dong. (1401). 'Modelling and Image Reconstruction Evaluation of a Scintillation Camera with Silicone Photomultiplier', سامانه مدیریت نشریات علمی, 12(2), pp. 117-126. doi: 10.31661/jbpe.v0i0.2009-1183
Md Ali, Sham FIrdaus, Saripan, M. Iqbal, Muhammad Noor, Ahmad Shukri, Rokhani, Fakhrul Zaman, Hashim, Suhairul, Xianling, Dong. Modelling and Image Reconstruction Evaluation of a Scintillation Camera with Silicone Photomultiplier. سامانه مدیریت نشریات علمی, 1401; 12(2): 117-126. doi: 10.31661/jbpe.v0i0.2009-1183
Modelling and Image Reconstruction Evaluation of a Scintillation Camera with Silicone Photomultiplier
1PhD Candidate, Faculty of Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia
2PhD Candidate, Department of Electrical & Electronics, German-Malaysian Institute, Kajang, Selangor, Malaysia
3PhD, Faculty of Engineering, University Putra Malaysia, Serdang, Selangor, Malaysia
4PhD, Faculty of Science, University Teknologi Malaysia, Skudai, Johor, Malaysia
5PhD, Department of Biomedical Engineering, Chengde Medical University, Chengde, Hebei, China
چکیده
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.
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