English
Related papers

Related papers: Digital Low-Level RF system for the Linac Electron…

200 papers

The low-level RF (LLRF) systems for S-band linear accelerating structures are typically implemented with heterodyne base architectures. We have developed and characterized the next generation LLRF (NG-LLRF) based on the RF system-on-chip…

Accelerator Physics · Physics 2025-05-30 Chao Liu , Ankur Dhar , Emma Snively , Mohamed Othman , Ryan Herbst , Emilio A. Nanni

The PEP-II B Factory Low-Level RF System (LLRF) is a fully programmable VXI based design running under an EPICS control environment. Several RF feedback loops are used to control longitudinal coupled-bunch modes driven by the accelerating…

Accelerator Physics · Physics 2007-05-23 P. Corredoura , S. Allison , W. Ross , R. Sass , R. Tighe

This work describes the LLRF and control system in use for a novel accelerator structure developed for a compact design operating in C-band developed by SLAC, with collaboration from RadiaBeam and RadiaSoft. This design is a pulsed…

The Los Alamos Neutron Science Center (LANSCE) accelerator at Los Alamos National Laboratory (LANL) has been in service for over 50 years. Efforts to update and modernize crucial systems, many of which are origi-nal, are ongoing. This paper…

Accelerator Physics · Physics 2023-11-10 A. Poudel , J. Medina , J. O'Hara , H. Salazar , J. Montross

SLAC National Accelerator Laboratory is collaborating with Arizona State University to design a LLRF system towards the advancement of the ASU Compact X-ray Light Source (CXLS). The CXLS is a phased project to develop small brilliant x-ray…

Accelerator Physics · Physics 2019-10-02 A. Young , J. M. D Ewart , J. Frisch , B. Hong , T. Straumann , M. Weaver , C. Xu

Currently ALS is undergoing an upgrade to ALSU to produce 100 times brighter soft X-ray light. The LLRF system for Accumulator Ring (AR) is composed of two identical LLRF stations, for driving RF amplifiers. The closed loop RF amplitude and…

The Linac Coherent Light Source (LCLS) at Stanford Linear Accelerator Center (SLAC) is in the process of being upgraded to a superconducting radio frequency (SRF) accelerator and renamed LCLS-II. This upgrade requires thirty five 1.3 GHz…

Accelerator Physics · Physics 2018-07-04 Andrew Dalesandro , Joshua Kaluzny , Arkadiy Klebaner

High precision Low-level RF (LLRF) control and monitoring systems for future particle accelerators will be a significant technical challenge as the requirements in performance, flexibility and affordability become increasingly stringent. We…

Normal conducting linear particle accelerators consist of multiple rf stations with accelerating structure cavities. Low-level rf (LLRF) systems are employed to set the phase and amplitude of the field in the accelerating structure, and to…

Accelerator Physics · Physics 2025-04-14 C. Liu , L. Ruckman , R. Herbst , D. Palmer , V. Borzenets , A. Dhar , D. Amirari , R. Agustsson , R. Berry , E. Nanni

The Spallation Neutron Source (SNS) is being designed for operation in 2004. The SNS is a 1 GeV machine consisting of a combination normal-conducting and super-conducting linac as well as a ring and target area. The linac front end is a…

Accelerator Physics · Physics 2007-05-23 Amy Regan , Sung-il Kwon , Tony S. Rohlev , Yi-Ming Wang , Mark S. Prokop , David W. Thomson

In the framework of the upgrade of the SPARC_LAB facility at INFN-LNF, named EuPRAXIA@SPARC_LAB, a high gradient linac is foreseen. One of the most suitable options is to realize it in X-band. A preliminary design study of both accelerating…

The first generation Low-Level radio frequency(LLRF) control system independently developed by IMPCAS, the operating frequency is 162.5MHz for China ADS, which consists of superconducting cavity amplitude stability control, phase stability…

Accelerator Physics · Physics 2014-06-06 Zhenglong Zhu , Xianwu Wang , Lianghua Wen , Wei Chang , Ruifeng Zhang , Zheng Gao , Qi Chen

The RF system for the SNS superconducting linac consists of a superconducting cavity, a klystron, and a low-level RF (LLRF) control system. For a proton linac like SNS, the field in each individual cavity needs to be controlled to meet the…

Accelerator Physics · Physics 2007-05-23 Y. M. Wang , S. I. Kwon , A. H. Regan

The proposed Next Linear Collider contains a large number of linac RF systems with new requirements for wideband klystron modulation and accurate RF vector detection. The system will be capable of automatically phasing each klystron and…

Accelerator Physics · Physics 2007-05-23 P. Corredoura , C. Adolphsen

Integrated sensing and communication (ISAC) is an encouraging wireless technology which can simultaneously perform both radar and communication functionalities by sharing the same transmit waveform, spectral resource, and hardware platform.…

Signal Processing · Electrical Eng. & Systems 2024-01-12 Yixian Zheng , Rang Liu , Ming Li , Qian Liu

LCLS-II is currently in its commissioning phase at SLAC. It is an X-ray FEL driven by a CW superconducting LINAC. The beam injector plays a crucial role in the overall performance of the accelerator, and is critical to the final electron…

The Linac Coherent Light Source (LCLS) is an X-ray science facility at SLAC National Accelerator Laboratory. The LCLS-II project (an upgrade to LCLS) is in the commissioning phase; the LCLS-II-HE (High Energy) project is another upgrade to…

Transverse Deflecting Cavities (TDCs) are generally adopted for electron beam diagnosis. Three sets of S-band and two sets of X-band TDCs are planned at Shenzhen Superconducting Soft X-ray Free Electron Laser (S3FEL) to accurately measure…

Accelerator Physics · Physics 2025-01-14 Jinfu Zhu , Hongli Ding , Haokui Li , Jiahang Shao , Yong Yu , Zongbin Li , Jiayue Yang , Zhichao Chen , Guorong Wu , Weiqing Zhang

L-band Digital Aeronautical Communication System (LDACS) aims to exploit vacant spectrum in L-band via spectrum sharing, and orthogonal frequency division multiplexing (OFDM) is the currently accepted LDACS waveform. Recently, various works…

Signal Processing · Electrical Eng. & Systems 2021-01-19 N. Agrawal , A. Ambede , S. J. Darak , A. P. Vinod , A. S. Madhukumar

The low-level RF (LLRF) systems for linear accelerating structures are typically based on heterodyne architectures. The linear accelerators normally have many RF stations and multiple RF inputs and outputs for each station, so the…

Accelerator Physics · Physics 2025-09-15 C. Liu , E. Snively , R. Herbst , K. Kim , E. A. Nanni