griscz/beam-college
Repository for Beam College sessions (⭐ 112)
liu-qilong/college-beamer
Customized beamer templates for colleges/institutes (⭐ 203)
Diffraction-Attenuation Resistant Beams in Absorbing Media
In this work, in terms of suitable superpositions of equal-frequency Bessel beams, we develop a theoretical method to obtain nondiffractive beams in absorbing media (weakly conductive) capable to resist the loss effects for long distances....
HRTF-based two-dimensional robust least-squares frequency-invariant beamformer design for…
In this work, we propose a two-dimensional Head-Related Transfer Function (HRTF)-based robust beamformer design for robot audition, which allows for explicit control of the beamformer response for the entire three-dimensional sound field surrounding...
Optimal positron-beam excited plasma wakefields in Hollow and Ion-Wake channels
A positron-beam interacting with the plasma electrons drives radial suck-in, in contrast to an electron-beam driven blow-out in the over-dense regime, $n_b>n_0$. In a homogeneous plasma, the electrons are radially sucked-in from all the different rad...
Beam Loss in Linacs
Beam loss is a critical issue in high-intensity accelerators, and much effort is expended during both the design and operation phases to minimize the loss and to keep it to manageable levels. As new accelerators become ever more powerful, beam loss b...
Pilot Beam Pattern Design for Channel Estimation in Massive MIMO Systems
In this paper, the problem of pilot beam pattern design for channel estimation in massive multiple-input multiple-output systems with a large number of transmit antennas at the base station is considered, and a new algorithm for pilot beam pattern de...
hkmmsv3455/Double-beam-load-cell--693B--OIML-C3-standard--alloy-steel
PARAMETER UNIT TECHNICAL DATA Rated capacity (Emax) Klb 25/40/50/60/75/100/125/150/200 Accuracy class C3Sensitivity mV/V 3.0 ±0.003 Zero balance mV/V0.03Creep over 30min %0.02Temperature effect on zero %/ 0.004Temperature effect on output %/ 0.0014Hysteresis % 0.017Linearity devi…
Calibration and Irradiation Study of the BGO Background Monitor for the BEAST II Experimen…
Beam commissioning of the SuperKEKB collider began in 2016. The Beam Exorcism for A STable experiment II (BEAST II) project is particularly designed to measure the beam backgrounds around the interaction point of the SuperKEKB collider for the Belle...
A Computational Model for Molecular Interactions Between Curved Slender Fibers Undergoing…
This contribution proposes the first 3D beam-to-beam interaction model for molecular interactions between curved slender fibers undergoing large deformations. While the general model is not restricted to a specific beam formulation, in the present wo...
Conditional beam splitting attack on quantum key distribution
We present a novel attack on quantum key distribution based on the idea of adaptive absorption [calsam01]. The conditional beam splitting attack is shown to be much more efficient than the conventional beam spitting attack, achieving a performance...
The potential of the ILC beam dump for high-intensity and large-area irradiation field wit…
We evaluate the neutron and muon fluxes produced in the ILC beam dumps by Monte Carlo simulations and discuss their potential use in irradiation fields. We show that the beam dumps can provide high-intensity neutron and muon fluxes with spectra quite...
New physics searches at the ILC positron and electron beam dumps
We study capability of the ILC beam dump experiment to search for new physics, comparing the performance of the electron and positron beam dumps. The dark photon, axion-like particles, and light scalar bosons are considered as new physics scenarios,...
Decommissioning and Post-Irradiation Examination of the LHC Beam Dumps
The LHC beam dumps are responsible for the safe absorption of the Large Hadron Collider (LHC) particle beams. In 2018, the two 6.4-tonne beam dumps that had been in operation since the LHC's startup in 2008 were removed and replaced with upgraded ver...
The International Linear Collider beam dumps
The ILC beam dumps are a key part of the accelerator design. At Snowmass 2005, the current status of the beam dump designs were reviewed, and the options for the overall dump layout considered. This paper describes the available dump options for th...
Floating zone furnace equipped with a high power laser of 1kW composed of five smart beams
A floating zone furnace is a powerful tool for single crystal growth. Here, we report the floating zone furnace using a high power diode laser of 1kW composed of five 200 Watt heating beams. The five beams with the designed irradiation intensity dist...
Beam Longitudinal Dynamics Simulation Suite BLonD
The beam longitudinal dynamics code BLonD has been developed at CERN since 2014 and has become a central tool for longitudinal beam dynamics simulations. In this paper, we present this modular simulation suite and the various physics models that can...
Position measurement of non-integer OAM beams with structurally invariant propagation
We present a design to generate structurally propagation invariant light beams carrying non-integer orbital angular momentum (OAM) using Hermite-Laguerre-Gaussian (HLG) modes. Different from previous techniques, the symmetry axes of our beams are fix...
The PADME beam line Monte Carlo simulation
The PADME experiment at the DA$Φ$NE Beam-Test Facility (BTF) of the INFN Laboratory of Frascati is designed to search for invisible decays of dark sector particles produced in electron-positron annihilation events with a positron beam and a thin fix...
Characterization of the PADME positron beam for the X17 measurement
This paper presents a detailed characterization of the positron beam delivered by the Beam Test Facility at Laboratori Nazionali of Frascati to the PADME experiment during Run III, which took place from October to December 2022. It showcases the meth...