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Related papers: PXIe-based LLRF architecture and versatile test be…

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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

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…

The Low-Level RF (LLRF) control circuits of linear accelerators (LINACs) are conventionally realized with heterodyne based architectures, which have analog RF mixers for up and down conversion with discrete data converters. We have…

Accelerator Physics · Physics 2024-08-23 Chao Liu , Ryan Herbst , Larry Ruckman , Emilio Nanni

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 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

The large scientific projects present new technological challenges, such as the distributed control over a communication network. In particular, the middleware EPICS is the most extended communication standard in particle accelerators. The…

Systems and Control · Computer Science 2014-06-17 J. Jugo , M. Eguiraun , I. Badillo , I. Arredondo , D. Piso

A compact low-level RF (LLRF) control system based on RF system-on-chip (RFSoC) technology has been designed for the Advanced Concept Compact Electron Linear-accelerator (ACCEL) program, which has challenging requirements in both RF…

SPARC_LAB is a high-brightness electron photoinjector dedicated to FEL radiation production and research on novel acceleration techniques. It has been in operation at LNF since 2005. It is composed of a newly designed brazeless 1.6-cell…

High gradient accelerator injectors have been widely studied throughout the world-leading accelerator facilities. The demand for high frequency cavities have led the Detector, Accelerator and instrumentation laboratory (KAHVELab) in…

The rapid advancement of Radio Frequency System-onChip (RFSoC) technology from Xilinx (AMD) has enabled the integration of high-speed data converters and programmable logic within a single package. RFSoC platforms are already widely adopted…

A CW-compatible, pulsed H- superconducting linac is envisaged as a possible path for upgrading Fermilab's injection complex. To validate the concept of the front- end of such a machine, a test accelerator (a.k.a. PXIE) is under…

Accelerator Physics · Physics 2015-02-06 A. Shemyakin , M. Alvarez , R. Andrews , C. Baffes , A. Chen , B. Hanna , L. Prost , G. Saewert , V. Scarpine , J. Steimel , D. Sun , D. Li , R. D'Arcy

As part of the PIP-II Injector Experiment (PXIE) accelerator, a four-vane radio frequency quadrupole (RFQ) accelerates a 30-keV, 1-mA to 10-mA H- ion beam to 2.1 MeV. It is designed to operate at a frequency of 162.5 MHz with arbitrary duty…

Accelerator Physics · Physics 2016-12-22 A. L. Edelen , S. G. Biedron , S. V. Milton , D. Bowring , B. E. Chase , J. P. Edelen , J. Steimel

Low Level RF (LLRF) control systems of linear accelerators (LINACs) are typically implemented with heterodyne based architectures, which have complex analog RF mixers for up and down conversion. The Gen 3 Radio Frequency System-on-Chip…

Accelerator Physics · Physics 2024-05-15 C. Liu , R. Herbst , B. Hong , L. Ruckman , E. A. Nanni

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 Proton Improvement Plan II (PIP-II) at Fermilab is a program of upgrades to the injection complex. At its core is the design and construction of a CW-compatible, pulsed H- superconducting RF linac. To validate the concept of the…

Accelerator Physics · Physics 2015-11-05 L. Prost , M. Alvarez , R. Andrews , J. -P. Carneiro , B. Hanna , V. Scarpine , A. Shemyakin , R. D'Arcy , C. Wiesner

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…

PIP-II is an 800 MEV superconducting linac that is in the initial acceleration chain for the Fermilab accelerator complex. The RF system consists of a warm front-end with an ion source, RFQ and buncher cavities along with 25 superconducting…

Accelerator Physics · Physics 2023-11-13 P. Varghese , B. Chase , E. Cullerton , S. Raman , S. Ahmed , P. Hanlet , D. Klepec

Superconducting cavities (SRF) are widely used in new generation particle accelerators, increasing the requirements and specifications for new designs. The LLRF control system, including the detuning control due to mechanical perturbations,…

Accelerator Physics · Physics 2019-10-21 Josu Jugo , Ander Elejaga , Pablo Echevarria

The ISIS synchrotron at the Rutherford Appleton Laboratory in the UK now routinely uses a dual harmonic RF system to accelerate beam currents in excess of 230uA to run two target stations simultaneously. The acceleration in the ISIS…

Accelerator Physics · Physics 2019-10-17 Andrew Seville , David B. Allen , Ian S. K. Gardner , Robert J. Mathieson

A CW-compatible, pulsed H- superconducting linac "PIP-II" is being planned to upgrade Fermilab's injection complex. To validate the front-end concept, a test accelerator (The PIP-II Injector Test, formerly known as "PXIE") is under…

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