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The interaction of a femtosecond optical pulse with a Fe$_{1}$/(MgO)$_{3}$(001) metal/oxide heterostructure is investigated using time-dependent density functional theory (TDDFT) calculations in the real-time domain. We systematically study…

材料科学 · 物理学 2022-06-22 Elaheh Shomali , Markus E. Gruner , Rossitza Pentcheva

The ALICE (A Large Ion Collider Experiment) Time Projection Chamber (TPC) at CERN LHC is presently equipped with Multi Wire Proportional Chambers (MWPCs). A gating grid prevents ions produced during the gas amplification from moving into…

仪器与探测器 · 物理学 2017-06-28 Alexander Deisting , Chilo Garabatos

The search for neutrinoless double beta decay requires increasingly advanced methods of background reduction. A bold approach to solving this problem, in experiments using Xe-136, is to extract and identify the daughter Ba-136 ion produced…

仪器与探测器 · 物理学 2019-10-07 K. Murray , J. Dilling , R. Gornea , Y. Ito , T. Koffas , A. A. Kwiatkowski , Y. Lan , M. P. Reiter , V. Varentsov , T. Brunner

Test-time reinforcement learning generates multiple candidate answers via repeated rollouts and performs online updates using pseudo-labels constructed by majority voting. To reduce overhead and improve exploration, prior work introduces…

机器学习 · 计算机科学 2026-05-28 Chu Zhao , Enneng Yang , Yuting Liu , Jianzhe Zhao , Guibing Guo

Spectrometers based on the magnetic adiabatic collimation followed by an electrostatic filter (MAC-E-filter) principle combine high angular acceptance with an excellent energy resolution. These features make MAC-E-filters very valuable for…

仪器与探测器 · 物理学 2020-10-20 Alexander Fulst , Alexey Lokhov , Mariia Fedkevych , Nicholas Steinbrink , Christian Weinheimer

A high-performance time-of-flight (TOF) MRPC wall is being built for the CBM experiment at FAIR for charged hadron identification. The detector control system for the TOF system will be based on EPICS. All components like power supplies for…

仪器与探测器 · 物理学 2021-02-03 S. Dong , G. M. Huang , J. Frühauf , P. -A. Loizeau , I. Deppner , N. Herrmann , D. Wang

A cylindrical GEM detector is under development, to serve as an upgraded inner tracker at the BESIII spectrometer. It will consist of three layers of cylindrically-shaped triple GEMs surrounding the interaction point. The experiment is…

Usage of electrodes made of glass with low bulk resistivity seems to be a promising way to adapt the Resistive Plate Chambers (RPC) to the high-rate environment of the upcoming CBM experiment. A pilot four-gap RPC sample with electrodes…

In applied forms of time-of-flight mass spectrometry utilizing ion storage devices prior to an analysis device, a non instantaneous electric ejection pulse applied in the region of ion storage is used to accelerate ions into the…

仪器与探测器 · 物理学 2023-07-19 M. Rosenbusch , P. Schury , M. Wada , S. Iimura , Y. Ito , H. Wollnik

Plastic scintillation detectors for Time-of-Flight (TOF) measurements are almost essential for event-by-event identification of relativistic rare isotopes. In this work, a pair of plastic scintillation detectors of 50 $\times$ 50 $\times$…

Plastic scintillators are widely used as particle detectors in many fields, mainly, medicine, particle physics and astrophysics. Traditionally, they are coupled to a photo-multplier (PMT) but now silicon photo-multipliers (SiPM) are…

天体物理仪器与方法 · 物理学 2018-09-28 G. Ros , G. Sáez-Cano , G. A. Medina-Tanco , A. D. Supanitsky

Vehicle-to-everything (V2X) is considered as one of the most important applications of future wireless communication networks. However, the Doppler effect caused by the vehicle mobility may seriously deteriorate the performance of the…

信息论 · 计算机科学 2020-03-04 Junqiang Cheng , Chenglu Jia , Hui Gao , Wenjun Xu , Zhisong Bie

The CMS muon system is undergoing substantial upgrades to meet the challenges of the High-Luminosity LHC (HL-LHC), including the installation of the new Muon Endcap 0 (ME0) detector. Large-scale production started in 2024. ME0 is a…

仪器与探测器 · 物理学 2026-03-05 Anureet Kaur

Monte Carlo simulations are increasingly used in scintigraphic imaging to model imaging systems and to develop and assess tomographic reconstruction algorithms and correction methods for improved image quantitation. GATE (GEANT 4…

Accurate Time-of-Flight (TOF) measurement with sub-100 picosecond resolution is a critical requirement for particle identification in future high-energy physics experiments, such as the Belle II $K_{L}$ and Muon (KLM) detector upgrade.…

仪器与探测器 · 物理学 2026-05-14 Ziyi Yang , Xiyang Wang , Shiming Zou , Ting Wang , Kairui Huang , Wanyi Zhuang , Yicheng Pu , Xiaolong Wang

The Multigap Resistive Plate Chamber (MRPC) is a gaseous detector; the performance depends very much on the gas mixture as well as the design. MRPCs are used as a timing device in several collider experiments and cosmic ray experiments…

仪器与探测器 · 物理学 2019-03-27 Yongwook Baek , Dowon Kim , M. C. S. Williams

This paper investigates over-the-air computation (AirComp) in the context of multiple-access time-varying multipath channels. We focus on a scenario where devices with high mobility transmit their sensing data to a fusion center (FC) for…

信息论 · 计算机科学 2024-03-19 Xinyu Huang , Henrik Hellstrom , Carlo Fischione

The extended boundary condition method can be used to study planewave scattering by an ellipsoid composed of an orthorhombic dielectric-magnetic material whose relative permittivity dyadic is a scalar multiple of its relative permeability…

Performance analysis is carried out in a near-field multiple-input multiple-output (MIMO) system for both discrete and continuous aperture antennas. The effective degrees of freedom (EDoF) is first derived. It is shown that near-field MIMO…

信息论 · 计算机科学 2023-10-03 Ziyi Xie , Yuanwei Liu , Jiaqi Xu , Xuanli Wu , Arumugam Nallanathan

Pulse-to-pulse orbit jitter, if not controlled, can drastically degrade the luminosity in future linear colliders. The second goal of the ATF2 project at the KEK accelerator test facility is to stabilise the vertical beam position down to…

加速器物理 · 物理学 2011-10-25 Javier Resta-Lopez , Glenn Christian