Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 24 for “"SiPM"”.
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A novel high-efficiency SiPM-based system for Ps-TOF
… is proposed, using Silicon Photomultipliers (SiPMs) instead of Photomultiplier Tubes. The solution allows us to dramatically increase the compactness of the set up, thus improving the efficiency of 240%. Different configurations of SiPM+scintillators are characterized in order to find the best …
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High-Performance CMOS Front-End ASICs for SiPM Detectors and High-Frequency Ultrasound and Photoacoustic Imaging
Silicon photomultiplier (SiPM), as a high sensitivity photon detector, has been widely used in high energy physics, positron emission tomography imaging, and light detection and ranging applications. The slow-rising edge of standard SiPM signal, however, makes the timing measurement sensitive to …
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CRYOGENIC DETECTION OF SCINTILLATION LIGHT WITH LARGE AREA SIPM ARRAYS FOR NEXT GENERATION NEUTRINO AND DARK MATTER EXPERIMENTS
… copper cables. To bias silicon photomultipliers (SiPM) in such environment, a novel DC-DC boost converter working in cryogenics was designed. First, a proof-of-concept prototype was tested and characterized at liquid nitrogen temperature, then a full prototype integrated with the DUNE electronics …
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Progettazione, sviluppo e trasferimento tecnologico: Un'esplorazione completa dei calorimetri a doppia lettura basati su SiPM per i futuri collisori circolari e la loro applicazione per il monitoraggio della qualità dell'acqua nello spettro UV-Vis.
… e HiDRa, e sui test estensivi di una matrice SiPM di Hamamatsu a varie temperature, che sono culminati nella messa a punto di un impianto di qualificazione di massa per SiPM. La seconda parte prevede il trasferimento della tecnologia SiPM alla fisica ambientale per il monitoraggio online della …
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Silicon Photomultipliers as Free Space Optical Communication Sensors
… be achieved by using a Silicon photomultiplier (SiPM) as a receive optical sensor. SiPMs are arrays of APDs operated in Geiger mode, characterized by nanosecond output pulses and gains in the order of 106 electrons per photon. This thesis proposes using a SiPM in a 2x2 pixel configuration as a …
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Development and Evaluation of a Potentially Wearable Device for Circulating Cell Monitoring
… compact laser diode and silicon photomultiplier (SiPM) to enhance portability and functionality. The device includes a specialized optical system similar to a fluorescent microscope, which optimizes the signal- to-noise ratio by maximizing cellular fluorescence and minimizing background …
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Studio delle prestazioni nella rivelazione dei neutrini in JUNO (Jiangmen Underground Neutrino Observatory)
… tecnologie del Silicon Photo-Moltiplicatore (SiPM) e del suo utilizzo nel TAO (Taishan Antineutrino Observatory), un secondo rilevatore dell'Osservatorio JUNO che sarà posizionato a 30 m di distanza dal nocciolo di una centrale nucleare in Cina. I SiPM da utilizzare devono soddisfare un …
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Education for All? Complex solutions to complex problems in the Nigerian education sector
… – the School Improvement Programme Model (SIPM). This research is a critical analysis of simulating social systems. It aims to shed light on the insights that can be gained from complex systems thinking, as well as its limitations. Results from the SIPM indicate that this approach can be …
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Simulation and Characterization of Single Photon Detectors for Fluorescence Lifetime Spectroscopy and Gamma-ray Applications
… and, in this context, Silicon Photo-Multipliers (SiPM)s are leading the starring role. They are 2D array of optical diodes called Single Photon Avalanche Diodes (SPAD)s, and are normally fabricated with a dedicated silicon process. SPADs amplify the charge produced by the single absorbed photon in …
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Electronic interfaces for biophotonics data capture
… capture, featuring a Silicon Photomultiplier (SiPM) as the primary sensing component. The SiPM is uniquely suited for high-sensitivity, in-vivo cancer tumour detection biophotonics applications due to its high dynamic range, enabling detection of optical power levels as low as 1 pW. This …
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Performance characterization of functional fiber detectors: scintillating fibers with embedded photodiodes
… fibers embedded with silicon photomultipliers (SiPMs) have been produced for study. The light attenuation length for each prototype of the functional fiber detectors is measured. In addition, the SiPMs used in this work have been carefully calibrated to obtain the correspondence between the …
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Design study of an organ-dedicated positron emission tomography system
… mm3. The detector is silicon photomultiplier (SiPM), and the SiPM channel size is 3×3 mm2. A light guide is inserted between the LYSO and the SiPM for crystal identification, and the optimal light guide thickness is evaluated as 1.2 mm. The detector is cooled by a Peltier element, and the …
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A compact neutron spectrometer for detecting neutrons produced by cosmic rays
… coupled to a silicon photomultiplier (SiPM) has been designed, constructed and characterised with neutrons up to 62.5 MeV at the UCT n-lab, IRSN AMANDE and iThemba LABS fast neutron facilities. The compact detector displays good quality pulse shape discrimination for the separation of …
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Building a Hybrid Compton Camera System for Improving Medical Imaging Applications
… and CC3 incorporated novel MacroPixel LB-14x25c-SiPM-T scintillation detector assemblies using a va-riety of different physical configurations. CC2 was evaluated for three distinct geometries, utilising a 4 × 1 matrix of detector assemblies in both the scatterer and absorber layers. Mean- while, …
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L'APPARATO DEI PMT DI ICARUS E IL SUO SISTEMA DI "SLOW CONTROL".
… matrici di fotomoltiplicatori al silicio (SiPM), integrati nel supporto della sorgente, ai fini del trigger dell'acquisizione dati e per definire il t0 della generazione di luce. I segnali PMT e SiPM possono essere registrati a diverse distanze e diverse posizioni, permettendo la …
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A Geant4 Simulation Study Of A Xenon-Doped Liquid Argon, Full-Body, Time-of-Flight Positron Emission Tomography Scanner To Understand Its Performance And Noise Profile
… PET scanner that uses Silicon Photomultipliers (SiPM) coupled with a Xenon-doped Liquid Argon (LAr+Xe) scintillator. This design was simulated using the Geant4 particle-matter monte carlo simulation tool-kit while following the National Electrical Manufacturers Association’s evaluation tests …
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Characterisation and calibration of silicon photomultipliers for next-generation space detectors
… of applications for Silicon Photomultipliers (SiPMs) has already been found in fields such as medical science and industrial applications, to name a few. They are the new photosensors set to replace the traditional photomultipliers for several next-generation space instruments. Owing to their …
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Study on the Performance of Neutrino Detection in JUNO (Jiangmen Underground Neutrino Observatory)
… a review of the Sil- icon Photo-Multiplier (SiPM) technologies and its use in TAO (Taishan Antineutrino Observatory), a second detector of the JUNO Observatory to be placed 30 m away from the core of a nuclear power plant in China. The SiPMs to be used have to fulfil a list of requirements …
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High Capacity VCSEL Array Based Optical Wireless Links
… a 3 m link, using a Silicon Photomultiplier (SiPM) receiver. The novel multibeam VCSEL array based-OWC transmitter is demonstrated to enhance the channel capacity Three 20 cm × 20 cm square cells are shown on the receiver surface with low interference to adjacent cells. A 9.2 Gbps data …
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