نتایج جستجو برای: square photomultiplier tubes
تعداد نتایج: 157109 فیلتر نتایج به سال:
Abstract Signal-induced noise is observed in Hamamatsu R11265 Multianode Photomultiplier Tubes, manifesting up to several microseconds after the single photoelectron response signal and localised specific anodes. The mean number of pulses varies between devices, shows significant dependence on applied high-voltage. characterisation this mitigation strategies perform optimal single-photon counti...
We present the waveform digitiser used in the Double Chooz experiment. We describe the hardware and the custom-built firmware specifically developed for the experiment. The performance of the device is tested with regards to digitising low light level signals from photomultiplier tubes and measuring pulse charge. This highlights the role of quantisation effects and leads to some general recomme...
SNO+ is a multi-purpose neutrino detector, which will primarily study neutrinoless double beta decay. Preparations are underway for the first phase of physics data-taking, with a water-filled detector. In terms of hardware, recent electronics repairs are described, as well as the programme which has shown to be ∼90% effective in repairing failed photomultiplier tubes. Testing of Data Quality ha...
The P10 scintillator is a component of the Focal Plane Detector being developed at Michigan State University. The scintillator will stop and determine the energy of incoming isotopes. The project focused on testing and calibration of the thick scintillator. Photomultiplier tubes were tested then coupled to the scintillator. The PMTs were then gain matched. Tests were run to determine the positi...
The Daya Bay experiment consists of functionally identical antineutrino detectors immersed in pools of ultrapure water in three well-separated underground experimental halls near two nuclear reactor complexes. These pools serve both as shields against natural, low-energy radiation, and as water Cherenkov detectors that efficiently detect cosmic muons using arrays of photomultiplier tubes. Each ...
Introduction: The gamma cameras, based on scintillation crystal followed by an array of photomultiplier tubes (PMTs), play a crucial role in nuclear medicine. The use of square PMTs provides the minimum dead zones in the camera. The camera with square PMTs also reduces the number of PMTs relative to the detection area. Introduction of a positioning algorithm to improve the spat...
XENON Dark Matter Project searches for the dark matter candidate, the Weakly Interacting Massive Particle (WIMPs). All XENON experiments use a time projection chamber (TPC) to detect nuclear recoils resulting from WIMP-nuclei scattering. Photomultiplier tubes (PMTs) read out the signal from the scintillation and ionization of the xenon triggered by the nuclear recoils. This paper details PMT ga...
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