Published in Journal of Instrumentation
The LHCb upgrade represents a major change of the experiment. The detectors have been almost completely renewed to allow running at an instantaneous luminosity five times larger than that of the previous running periods. Readout of all detectors into an all-software trigger is central to the new design, facilitating the reconstruction of events at ...
Published in Journal of Instrumentation
In this work we demonstrate that ultra-thin (5 and 15 nm) MgO transmission dynodes with sufficient high transmission electron yield (TEY) can be constructed. These transmission dynodes act as electron amplification stages in a novel vacuum electron multiplier: the Timed Photon Counter. The ultra-thin membranes with a diameter of 30 μm are arranged ...
Published in Journal of Instrumentation
Large-area transmission dynodes were fabricated by depositing an ultra-thin continuous film on a silicon wafer with a 3-dimensional pattern. After removing the silicon, a corrugated membrane with enhanced mechanical properties was formed. Mechanical metamaterials, such as this corrugated membrane, are engineered to improve its strength and robustne...
Published in Journal of Instrumentation
LUX-ZEPLIN (LZ) is a tonne-scale experiment searching for direct dark matter interactions and other rare events. It is located at the Sanford Underground Research Facility (SURF) in Lead, South Dakota, USA. The core of the LZ detector is a dual-phase xenon time projection chamber (TPC), designed with the primary goal of detecting Weakly Interacting...
Published in Journal of Instrumentation
In the quest to build generative surrogate models as computationally efficient alternatives to rule-based simulations, the quality of the generated samples remains a crucial frontier. So far, normalizing flows have been among the models with the best fidelity. However, as the latent space in such models is required to have the same dimensionality a...
Published in Journal of Instrumentation
One of the most promising approaches for the next generation of neutrino experiments is the realization of large hybrid Cherenkov/scintillation detectors made possible by recent innovations in photodetection technology and liquid scintillator chemistry. The development of a potentially suitable future detector liquid with particularly slow light em...
Published in Journal of Instrumentation
A novel imaging mode of neutron resonance radiography for the identification and mapping of oxygen element is firstly proposed based on the Back-n beamline at CSNS. The method utilizes a 10B-enriched conversion layer that converts transmitted neutrons to gamma rays. The emitted characteristic 478-keV prompt gamma rays are then collimated by a pinho...
Published in Journal of Instrumentation
Methylammonium lead iodide (MAPbI3) perovskite is a well-known organic-inorganic lead halide perovskite that has gained much attention because of its advantages such as a high absorption coefficient for radiation absorption, high carrier mobility, high defect tolerance, and outstanding solution processability. In this study, we aimed to fabricate r...
Published in Journal of Instrumentation
This study addresses the challenges of non-stationarity and significant background noise interference in eddy current detection signals by proposing a noise reduction method based on Improved Complete Ensemble Empirical Mode Decomposition with Adapted Noise (ICEEMDAN). The process commences with the signal being decomposed using Improved Complete E...
Published in Journal of Instrumentation
In this paper, we focus on simulating a pyroelectric accelerator using COMSOL Multiphysics. We utilize the static surface charge distribution obtained from an experiment conducted on a LiTaO3 single crystal surface. We analyze the characteristics of the electron flow generated by the accelerator and determine the emittance and Twiss parameters. Our...
