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Security and stability challenges in future power systems with high penetration Inverter-Based Resources (IBR) have been anticipated as one of the main barriers to decarbonization. Grid-following IBRs may become unstable under small…

Systems and Control · Electrical Eng. & Systems 2024-10-11 Zhongda Chu , Fei Teng

Simulation of the CERN crystal-extraction experiments at the SPS, including the real crystal geometry and SPS parameters, as well as multiple turns and passes, has been performed. Two crystals with different geometry have been tried. We…

High Energy Physics - Experiment · Physics 2008-11-26 Valery M. Biryukov

Preserving beam quality during the transportation of high-brightness electron beams is a significant and widespread challenge in the design of modern accelerators. The importance of this issue stems from the fact that the quality of the…

Accelerator Physics · Physics 2024-05-27 Xiuji Chen , Si Chen , Dong Wang

This document describes the concept of a primary electron beam facility at CERN, to be used for dark gauge force and light dark matter searches. The electron beam is produced in three stages: A Linac accelerates electrons from a…

Accelerator Physics · Physics 2018-06-01 T. Åkesson , Y. Dutheil , L. Evans , A. Grudiev , Y. Papaphilippou , S. Stapnes

The kicker control system was used for beam extraction and injection between two cooling storage rings (CSRs) at the Heavy Ion Research Facility in Lanzhou (HIRFL). To meet the requirements of special physics experiments, the kicker…

Bunch splitting is an RF manipulation method of changing the bunch structure, bunch numbers and bunch intensity in the high-intensity synchrotrons that serve as the injector for a particle collider. An efficient way to realize bunch…

Accelerator Physics · Physics 2021-02-05 Linhao Zhang , Min Chen , Jingyu Tang

The current status of the proposed SHiP experiment at the CERN Beam Dump Facility is presented. SHiP is a general-purpose fixed-target experiment. The 400 GeV/$c$ proton beam extracted from the SPS will be dumped on a heavy target to…

Instrumentation and Detectors · Physics 2020-09-15 Markus Cristinziani

The Electron Multipacting (EM) phenomenon is a limiting factor for the achievement of high luminosity in accelerators for positively charged particles and for the performance of RF devices. At CERN, the Super Proton Synchrotron (SPS) must…

Accelerator Physics · Physics 2013-08-07 P. Costa Pinto , S. Calatroni , P. Chiggiato , P. Edwards , M. Mensi , H. Neupert , M. Taborelli , C. Yin-Vallgren

A new accelerator complex, HIAF (the High Intensity Heavy Ion Accelerator Facility), has been approved in China. It is designed to provide intense primary and radioactive ion beams for research in high energy density physics, nuclear…

FLASH radiation therapy calls for the delivery of fast bursted spills of particles with dose delivery times of the order of milliseconds. The requirements overlap with fundamental physics experimental requests that are being studied at…

Accelerator Physics · Physics 2022-08-31 Pablo A. Arrutia Sota , Philip N. Burrows , Matthew A. Fraser , Francesco M. Velotti

Synchronization is likely the most critical performance killer in shared-memory parallel programs. With the rise of multi-core and many-core processors, the relative impact on performance and energy overhead of synchronization is bound to…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-07-21 Marco Bertuletti , Samuel Riedel , Yichao Zhang , Alessandro Vanelli-Coralli , Luca Benini

Various legacy and emerging industrial control applications create the requirement of periodic and time-sensitive communication (TSC) for 5G/6G networks. State-of-the-art semi-persistent scheduling (SPS) techniques fall short of meeting the…

Networking and Internet Architecture · Computer Science 2021-09-06 Nan Jiang , Adnan Aijaz , Yichao Jin

An upgraded Beam Emission Spectroscopy (BES) system has been deployed to access low amplitude turbulence regions near internal transport barriers on the DIII-D tokamak. Sixteen high sensitivity channels are being installed. A significant…

The bunch-by-bunch BPM signal array has to be reshaped into a turn-by-turn (TBT) matrix in order to make the TBT beam position information of a single bunch available for further data analysis, such as via the Fourier transform to obtain…

Accelerator Physics · Physics 2007-05-23 Xi Yang , Charles M. Ankenbrandt , James Lackey , Vic Scarpine

Fast-response voltage regulation is essential for data-center Voltage Regulation Modules (VRMs) powering Artificial Intelligence (AI) workloads, which exhibit both small-amplitude fluctuations and abrupt full-load steps. This paper…

Applied Physics · Physics 2025-08-27 Guanyu Qian , Haoxian Yan , Xiaofan Cui

A generic and intuitive model for coherent energy transport in multiple minima systems coupled to a quantum mechanical bath is shown. Using a simple spin-boson system, we illustrate how a generic donor-acceptor system can be brought into…

Biological Physics · Physics 2014-06-24 Tristan Farrow , Vlatko Vedral

A hybrid scheme is presented that allows the transfer of squeezed states (TSS) from the mechanical part to an optical cavity in the steady-state. In a standard optomechanical scheme, a three-level atom acts as an intermediate element for…

Quantum Physics · Physics 2026-04-29 Hugo Molinares , Vitalie Eremeev , Miguel Orszag

This paper presents a solution to address wear and tear of Run-of-River (RoR) Hydropower Plants (HPPs) providing enhanced Frequency Containment Reserve (FCR). In this respect, the study proposes the integration of a Battery Energy Storage…

Systems and Control · Electrical Eng. & Systems 2023-10-02 Francesco Gerini , Elena Vagnoni , Martin Seydoux , Rachid Cherkaoui , Mario Paolone

Recurrent neural networks (RNNs) have been widely adopted in temporal sequence analysis, where realtime performance is often in demand. However, RNNs suffer from heavy computational workload as the model often comes with large weight…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-05-13 Runbin Shi , Peiyan Dong , Tong Geng , Yuhao Ding , Xiaolong Ma , Hayden K. -H. So , Martin Herbordt , Ang Li , Yanzhi Wang

The proposed Beam Dump Facility (BDF) is foreseen to be located at the North Area of the SPS. It is designed to be able to serve both beam dump like and fixed target experiments. The SPS and the new facility would offer unique possibilities…