Tootfinder

En Costa Rica las obras de infraestructura gritan: LOS PEATONES NO VALEN NADA. Ni al Ministerio de Obras Públicas y Transporte, ni a las municipalidades pareciera importarles otra cosa que quienes viajan en vehículos automotores.
Estamos gobernados por incompetentes.
Ruta nacional 106, Barreal de #Heredia, #CostaRica

Characterization of Hamamatsu R11410-23 Photomultiplier Tubes and Performance in the PandaX-4T Detector
Binbin Yan, Di Huang, Jianglai Liu, Xiaoying Lu, Anqing Wan, Mengjiao Xiao
https://arxiv.org/abs/2505.24220

Characterization of Hamamatsu R11410-23 Photomultiplier Tubes and Performance in the PandaX-4T Detector
The PandaX-4T liquid xenon detector uses Hamamatsu 3-inch R11410-23 photomultiplier tubes (PMTs) as the light sensors for ultra-low radioactivity, high quantum efficiency, and long-term stability at cryogenic temperature. Each PMT was thoroughly tested in a dedicated chamber before being installed in the detector to ensure compliance with experimental requirements. Main PMT characteristics, including gain, dark count rate, and after-pulse probability, were measured and the distributions of thes…

This https://arxiv.org/abs/2503.06727 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

Machine Learning for Single-Ended Event Reconstruction in PROSPECT Experiment
The Precision Reactor Oscillation and Spectrum Experiment, PROSPECT, was a segmented antineutrino detector that successfully operated at the High Flux Isotope Reactor in Oak Ridge, TN, during its 2018 run. Despite challenges with photomultiplier tube base failures affecting some segments, innovative machine learning approaches were employed to perform position and energy reconstruction, and particle classification. This work highlights the effectiveness of convolutional neural networks and grap…

A highly sensitive SF$_6$-based leak test system for JUNO 3-inch PMT underwater electronics boxes
Ziliang Chu, Diru Wu, Miao He, Jilei Xu, Xiaoping Jing, Jian Wang
https://arxiv.org/abs/2505.24142

A highly sensitive SF$_6$-based leak test system for JUNO 3-inch PMT underwater electronics boxes
A total of 25600 3-inch photomultiplier tubes (PMTs), along with their corresponding frontend electronics, have been installed at the Jiangmen Underground Neutrino Observatory (JUNO). These electronics are housed in 200 stainless steel boxes that operate underwater. To verify the sealing integrity of the underwater boxes following integration, we developed an SF$_6$-based leak test system, opting against the typical helium-based system due to helium's ability to penetrate the PMT glass. After a…

Operation of a dual-phase xenon detector with wavelength sensitivity from ultraviolet to infrared
Robert Hammann, Kai B\"ose, Steffen Form, Luisa H\"otzsch, Teresa Marrod\'an Undagoitia
https://arxiv.org/abs/2505.24682

Operation of a dual-phase xenon detector with wavelength sensitivity from ultraviolet to infrared
Xenon, in both its gaseous and liquid phase, offers excellent scintillation and ionization properties, making it an ideal target medium for rare event searches. We report on measurements performed with a dual-phase xenon time projection chamber sensitive to wavelengths from 170 nm to 1700 nm. In addition to the well-established ultraviolet (UV) scintillation, we observe coincident signals in a photomultiplier tube sensitive to infrared (IR) light, associated with both prompt scintillation in th…

This https://arxiv.org/abs/2503.00532 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepe…

Performance and radiation damage mitigation strategy for silicon photomultipliers on LEO space missions
Space missions require lightweight, low-power consuming, radiation-tolerant components. Silicon photomultipliers are increasingly used for detecting near-UV, optical, and infrared light in space due to their compact design, low cost, low power consumption, robustness, and high photo-detection efficiency, which makes them sensitive to single photons. Although SiPMs outperform traditional photomultiplier tubes in many areas, concerns about their radiation tolerance and noise remain. In this study…