Tootfinder

Silicon-Photomultiplier (SiPM) Protection Against Over-Current and Over-Illumination
Gholamreza Fardipour Raki, Mohsen Khakzad
https://arxiv.org/abs/2404.07875

Silicon-Photomultiplier (SiPM) Protection Against Over-Current and Over-Illumination
SiPMs operate in Geiger mode, wherein photodiode cells are reverse-biased to the breakdown by even a single photon. Each cell is connected in series with a quenching resistor, which prevents cell damage and resets the cell after making a signal. All cells are arranged in parallel, making SiPMs and biasing circuits vulnerable to over-illumination, where the current passing through the SiPM can exceed the allowable value, leading to damage. In this study, we investigate over-current conditions in…

This https://arxiv.org/abs/2402.16605 has been replaced.
initial toot: https://mastoxiv.page/@ar…

A simple model for multiple coincidece SiPM dark noise
Silicon photomultipliers are photon sensors based on an array of pixels, each consisting of a single photon avalanche photodiode (SPAD). Reading of the array is not done on a single-pixel basis, but all pixels are read simultaneously. Because of thermal agitation and other phenomena, each pixel can fire even in the dark with a small but not zero probability of adding to the output signal a fixed current. Each pixel has an average random event rate, and the dark noise rate is due to the sum of a…

This https://arxiv.org/abs/2401.00373 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Improvement on the Linearity Response of PandaX-4T with new Photomultiplier Tubes Bases
With the expanding reach of physics, xenon-based detectors such as PandaX-4T in the China Jinping Underground Laboratory aim to cover an energy range from sub-keV to multi-MeV. A linear response of the photomultiplier tubes (PMTs) is required for both scintillation and electroluminescence signals. Through a dedicated bench test, we investigated the cause of the non-linear response in the Hamamatsu R11410-23 PMTs used in PandaX-4T. The saturation and suppression of the PMT waveform observed duri…

Acceptance Tests of more than 10 000 Photomultiplier Tubes for the multi-PMT Digital Optical Modules of the IceCube Upgrade
Abbasi, Ackermann, Adams, Agarwalla, Aguilar, Ahlers, Alameddine, Amin, Andeen, Arg\"uelles, Ashida, Athanasiadou, Ausborm, Axani, Bai, V., Baricevic, Barwick, Bash, Basu, Bay, Beatty, Tjus, Beise, Bellenghi, Benning, BenZvi, Berley, Bernardini, Besson, Blaufuss, Bloom, Blot, Bontempo, Motzkin, Meneguolo, B\"oser, Botner, B\"ottcher, Braun, Brinson,…

Acceptance Tests of more than 10 000 Photomultiplier Tubes for the multi-PMT Digital Optical Modules of the IceCube Upgrade
More than 10,000 photomultiplier tubes (PMTs) with a diameter of 80 mm will be installed in multi-PMT Digital Optical Modules (mDOMs) of the IceCube Upgrade. These have been tested and pre-calibrated at two sites. A throughput of more than 1000 PMTs per week with both sites was achieved with a modular design of the testing facilities and highly automated testing procedures. The testing facilities can easily be adapted to other PMTs, such that they can, e.g., be re-used for testing the PMTs for …

Improved modeling of in-ice particle showers for IceCube event reconstruction
Abbasi, Ackermann, Adams, Agarwalla, Aguilar, Ahlers, Alameddine, Amin, Andeen, Anton, Arg\"uelles, Ashida, Athanasiadou, Ausborm, Axani, Bai, V., Baricevic, Barwick, Bash, Basu, Bay, Beatty, Tjus, Beise, Bellenghi, Benning, BenZvi, Berley, Bernardini, Besson, Blaufuss, Blot, Bontempo, Book, Meneguolo, B\"oser, Botner, B\"ottcher, Braun, Brinson, Brostean-Kaiser, Brusa, Burley, Busse, Butterfie…

Improved modeling of in-ice particle showers for IceCube event reconstruction
The IceCube Neutrino Observatory relies on an array of photomultiplier tubes to detect Cherenkov light produced by charged particles in the South Pole ice. IceCube data analyses depend on an in-depth characterization of the glacial ice, and on novel approaches in event reconstruction that utilize fast approximations of photoelectron yields. Here, a more accurate model is derived for event reconstruction that better captures our current knowledge of ice optical properties. When evaluated on a Mo…

This https://arxiv.org/abs/2403.16817 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

Probing Neutrino Oscillations with Reactor Antineutrinos in JUNO
The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose neutrino experiment currently under construction in South China, in an underground laboratory with approximately 650 m of rock overburden (1800 m.w.e.). The detector consists of a 20 kton liquid scintillator target, contained inside a 35.4-meter-diameter spherical acrylic vessel. The central detector (CD) is equipped with 17,612 20-inch and 25,600 3-inch Photomultipliers Tubes (PMTs), providing more than 75% total photocath…

Characterization of Silicon Photomultiplier Photon Detection Efficiency at Liquid Nitrogen Temperature
S. Borden, J. A. Detwiler, W. Pettus, N. W. Ruof
https://arxiv.org/abs/2405.01529

Characterization of Silicon Photomultiplier Photon Detection Efficiency at Liquid Nitrogen Temperature
The detection of individual photons at cryogenic temperatures is of interest to many experiments searching for physics beyond the Standard Model. Silicon photomultipliers are often deployed in liquid argon or liquid xenon to detect scintillation light by either directly detecting the vacuum ultra-violet scintillation or by detecting light from fluorescent compounds that are used to shift the wavelength. Here we present results from an experimental setup that measures the photon detection effici…

Characterization of Silicon Photomultiplier Photon Detection Efficiency at Liquid Nitrogen Temperature
S. Borden, J. A. Detwiler, W. Pettus, N. W. Ruof
https://arxiv.org/abs/2405.01529

Characterization of Silicon Photomultiplier Photon Detection Efficiency at Liquid Nitrogen Temperature
The detection of individual photons at cryogenic temperatures is of interest to many experiments searching for physics beyond the Standard Model. Silicon photomultipliers are often deployed in liquid argon or liquid xenon to detect scintillation light by either directly detecting the vacuum ultra-violet scintillation or by detecting light from fluorescent compounds that are used to shift the wavelength. Here we present results from an experimental setup that measures the photon detection effici…

The Fast Stochastic Matching Pursuit for Neutrino and Dark Matter Experiments
Yuyi Wang, Aiqiang Zhang, Yiyang Wu, Benda Xu, Jiajie Chen, Zhe Wang, Shaomin Chen
https://arxiv.org/abs/2403.03156 https://arxiv.org/pdf/2403.03156
arXiv:2403.03156v1 Announce Type: new
Abstract: Photomultiplier tubes (PMT) are widely deployed at neutrino and dark matter experiments for photon counting. When multiple photons hit a PMT consecutively, their photo-electron (PE) pulses pile up to hinder the precise measurements of the count and timings. We introduce Fast Stochastic Matching Pursuit (FSMP) to analyze the PMT signal waveforms into individual PEs with the strategy of reversible-jump Markov-chain Monte Carlo. We demonstrate that FSMP improves the energy and time resolution of PMT-based experiments, gains acceleration on GPUs and is extensible to microchannel-plate (MCP) PMTs with jumbo-charge outputs. In the condition of our laboratory characterization of 8-inch MCP-PMTs, FSMP improves the energy resolution by up to 12% from the long-serving method of waveform integration.

Front-end electronics development of large-area SiPM arrays for high-precision single-photon time measurement
Wei Zhi, Jiannan Tang, Mingxin Wang, Yongqi Tan, Weihao Wu, Donglian Xu
https://arxiv.org/abs/2403.02948

Front-end electronics development of large-area SiPM arrays for high-precision single-photon time measurement
TRopIcal DEep-sea Neutrino Telescope (TRIDENT) plans to incorporate silicon photomultipliers (SiPMs) with superior time resolution in addition to photomultiplier tubes (PMTs) into its detection units, namely hybrid Optical Digital Modules (hDOMs), to improve its angular resolution. However, the time resolution significantly degrades for large-area SiPMs due to the increased parasitic capacitance, posing significant challenges for the readout electronics of SiPMs in hDOM. We designed the fro…