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    Temperature dependence of CsI:Tl coupled to a PIN photodiode and a silicon photomultiplier
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    Keywords:
    Silicon Photomultiplier
    Photodiode
    Thallium
    Atmospheric temperature range
    SIGNAL (programming language)
    Biasing
    Partial discharge (PD) not only indicates insulation deterioration in power equipment but also induces further decay on the properties of insulation materials. Limited to the development of photoelectrical devices, especially for silicon photomultiplier (SiPM), optical PD detection methods are seldom used in the on-site environment. In recent years, the solid-state photosensitive semiconductor has made great progress which provides a potential for SiPM in PD detection inside power equipment. However, the properties for SiPM-based PD detection in power equipment also remain elusive, and on-site applied methods for SiPM still need to be studied. In this paper, in order to verification the PD detection efficiency of SiPM, A system which can use SiPM and PMT to detect PD synchronously was built. The results show that the PRPD patterns of the SiPM-based detection are considerably consistent with that of PMT detections. What's more, the skewness and kurtosis calculated based on PRPD of SiPM-based detection are also consistent with that of PMT detections, which provides a potential for transferring traditional statistical analysis methods into SiPM-based PD detection.
    Silicon Photomultiplier
    Kurtosis
    Abstract Thallium and thallium compounds are produced by roasting zinc, copper, and lead ores. Demand and production of thallium and its compounds are small because of the element's high toxicity. Thallium(I) oxide, thallium(III) acetate, and thallium(III) nitrate are unstable. Other thallium(I) and thallium(III) compounds are stable. Certain alloys of thallium are used in bearings, contact points, as well as equipment for extreme conditions such as in polar regions or in space.
    Thallium
    The use of photosensors of the type Silicon Photomultpliers (SiPM) has widely been extended in recent years for multiple applications in both research and industry. However, there is a lack of comparative studies of different SiPMs under the same conditions, making it difficult to choose the most appropriate one for a specific application. SiPM arrays are suitable for gamma rays detectors, especially when covering large active areas. They are used either in clinical or pre-clinical scenarios, constituting Single-Photon Emission Computed Tomography (SPECT) and Positron Emission Tomography (PET) scanners, or just gamma cameras. The current work presents, for the first time, a comparative study between SensL, Hamamatsu Photonics and KETEK arrays of 12 × 12 SiPMs, with individual active areas of 3 mm × 3 mm, thus covering a total active area of about 5 cm × 5 cm. In this study, we have first evaluated their bias and temperature dependencies, resulting in a very similar behaviour with just a slightly larger dependency of the tested Hamamatsu parts. We also report the performance of detector blocks based on these three SiPM arrays, when coupled to pixelated crystal arrays and monolithic scintillators, in terms of photon impact estimation accuracy, as well as energy resolution. In the case of the monolithic crystals, also the depth of interaction resolution was determined. Both monolithic and pixelated blocks are nowadays widely used in academia or are commercially available for molecular imaging systems. The results obtained for the three SiPM arrays when using those crystals, are comparable, without observing any significant different among them.
    Silicon Photomultiplier
    Citations (6)