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Conor Jenkins (ASTeC, STFC Daresbury Laboratory), Matthew Jones (ASTeC, STFC Daresbury Laboratory)10/14/26, 4:30 PMControl Loop Modeling, Tuning and OptimizationPoster
In a vertical test facility (VTF) a cavity is required to be driven on resonance so that performance characteristics such as Q0 and coupling factors can be calculated from measurements. This contrasts with the usual requirements of a controller in an RF station of a particle accelerator. In UKRI-STFC's VTF at Daresbury Laboratory the RF control system is presently distributed across an...
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Alice Autuori (Cycle GmbH)10/14/26, 4:30 PMControl Architecture and StrategiesPoster
Precise phase regulation in LLRF systems relies on a phase-stable RF reference, making reference distribution an integral part of achievable field-control performance*. We present an actively stabilized RF-over-fiber link for distribution of a 1.3 GHz reference.
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The system measures optical round-trip delay and compensates fiber-induced fluctuations through feedback to a fast optical delay... -
Beatrice Serenellini (INFN-LNF)10/14/26, 4:30 PMControl Architecture and StrategiesPoster
The Scalable System for Radioisotope Production (SSRIP) is a new compact linear accelerator developed at IFIN-HH (Măgurele, Romania), coordinated by INFN-LNF within the ELI-NP infrastructure. The accelerator is designed to produce high-brightness electron beams for radioisotope production applications. The SSRIP RF system consists of four independent RF stations, three operating at 2856 MHz...
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Phani Deep Meruga (Instrumentation Technologies)10/14/26, 4:30 PMControl Hardware PlatformsPoster
Compact, high-gradient linear accelerators increasingly employ X-band RF technology, placing stringent demands on amplitude and phase stability especially for short RF pulses. Meeting these demands requires low-level RF (LLRF) systems capable of precise signal generation and acquisition, with careful management of phase noise, timing jitter, and thermal effects. An X-band LLRF prototype has...
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Hyojae Jang (Institute for Basic Science)10/14/26, 4:30 PMControl Hardware PlatformsPoster
RAON is a heavy ion accelerator complex in Daejeon, Republic of Korea. Its beam commissioning of low energy superconducting linear accelerator (SCL3) have been finished by Institute for Rare Isotope Science (IRIS) in Institute of Basic Science (IBS). The purpose of this accelerator is the generation of rare isotope by ISOL (Isotope Separation On-Line) and its acceleration for the nuclear...
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Gabriele Brajnik (Elettra Sincrotrone Trieste)10/14/26, 4:30 PMControl Hardware PlatformsPoster
A custom Intel Arria 10 SoC FPGA platform, developed for Beam Position Monitors, has been adapted as the core control hardware for the 500 MHz DLLRF system of the Elettra 2.0 upgrade. The architecture features an external RF Front-End down-converting signals to an 18.5 MHz IF, coupled with two FMC boards hosting four ADC channels (16 bits, 120 MS/s) and a DAC output stage with quadrature...
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Daniel Harryman (CERN)10/14/26, 4:30 PMControl Architecture and StrategiesPoster
High-frequency pulsed cavity control is emerging as a common requirement across several projects at CERN, including AWAKE, FCC-ee, and a proposed upgrade to CLEAR. This poster presents the design and laboratory commissioning of a pulsed cavity controller built on the MicroTCA platform, using a SIS8300-KU FPGA carrier paired with a DWC8VM1 rear transition module.
RF signals are down-mixed...
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Juan Salvador Fernández Prat (Safran Electronic & Defense Spain S.L.U.)10/14/26, 4:30 PMControl Architecture and StrategiesPoster
Low-Level Radio Frequency (LLRF) systems are critical components of modern particle accelerators, providing precise control of the amplitude and phase of RF fields in accelerating cavities. Advanced control and feedback architectures increasingly rely on deterministic timing and fast communication to coordinate RF control, diagnostics and protection functions across distributed equipment....
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Dr Diego Barrientos (CERN)10/14/26, 4:30 PMControl Architecture and StrategiesPoster
In the context of the High-Luminosity Large Hadron Collider (HL-LHC), high-intensity beams of 2.3 · 1011 protons per bunch are planned to be injected at the LHC after Long Shutdown 3 (LS3) at CERN. To cope with these beam intensities, several strategies have been put in place to reduce the power requirements of the 2 x 8 accelerating cavities installed in the machine. Among them,...
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Faya WANG (SLAC)10/14/26, 4:30 PMControl Architecture and StrategiesPoster
The Stanford Synchrotron Radiation Lightsource (SSRL) is completing a comprehensive modernization of the SPEAR3 RF control system. The legacy system, originally designed for the PEP-II B-Factory circa 1997, has operated nearly unchanged for three decades. Its core is a custom analog RF Processor (RFP) in a VXI chassis performing I/Q feedback at approximately ±90 kHz bandwidth, supplemented by...
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Dr Philip Varghese (Fermilab)10/14/26, 4:30 PMControl Hardware PlatformsPoster
FPGA architectures have evolved dramatically in recent years with vast increases in logic and compute resources as well as fundamental architectural changes such as integration of microprocessors and data converters on the same chip. This makes it possible to develop new LLRF system hardware configurations as well as provide the resources to implement advanced control algorithms such as system...
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Qiang Du (LBNL)10/14/26, 4:30 PMControl Hardware PlatformsPoster
Optimal beam parameters in high-power lasers and accelerators require active stabilization against environmental perturbations. Typically residing in the acoustic frequency band, these perturbations are corrected via piezo actuators or magnets. Common applications include coherent laser combining, laser pointing stabilization, resonance control in superconducting radio-frequency (SRF)...
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Dr Tomasz Plawski (Jefferson Lab)10/14/26, 4:30 PMControl Architecture and StrategiesPoster
Since 2021, the Self-Excited Loop with Amplitude and Phase (SELAP) control algorithm has regulated CEBAF’s high-Q superconducting radio-frequency cavities, demonstrating robust field stability. Sustaining this performance in routine operations, however, required targeted controller adaptations to mitigate microphonics, cavity-to-cavity mechanical coupling, signal crosstalk, high-power...
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Victoria Moore (LBNL)10/14/26, 4:30 PMControl Hardware PlatformsPoster
The Advanced Light Source (ALS) LINAC operates with 3 GHz RF pulses at 0.7 Hz pulse repetition frequency (PRF) and 1.2 µs duration, imposing severe limitations on traditional PID and adaptive feedforward control schemes. An RFSoC-based controller prototype was developed and presented in prior work to upgrade the legacy LLRF systems for the LINAC and Subharmonic Buncher.
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This paper presents... -
Gang Huang (LBNL)10/14/26, 4:30 PMControl Architecture and StrategiesPoster
The performance of superconducting quantum processors is critically limited by the control stack, where traditional systems often rely on black-box abstractions that hinder full-stack co-design. Notably, superconducting qubit control and particle accelerator radio-frequency (RF) control systems can share the same fundamental FPGA-based, software-defined radio architecture. We present QubiC, an...
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Joshua Einstein-Curtis (Deutsches Elektronen-Synchrotron DESY)10/14/26, 4:30 PMControl Architecture and StrategiesPoster
Automating quench detection and trip classification has been an ongoing research project at DESY for a number of years. We have recently developed firmware and close-to-hardware implementations of our model-based quench detection and trip classification system and are in the process of testing these in emulation and on real systems. In addition to several software implementations, we are...
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Benoit Roche (ESRF)10/14/26, 4:30 PMControl Architecture and StrategiesPoster
Modern digital electronics chips available on the market have reached incredible levels of performance. They enable highly advanced monitoring and control of accelerated beams, with bunch-by-bunch resolution and even beyond. However, this performance comes at a cost: increasing device capabilities also leads to greater complexity, making these technologies less accessible to beginners and...
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Andrea Bellandi (SCK CEN)10/14/26, 4:30 PMControl Hardware PlatformsPoster
The first 100 MeV stage of the MYRRHA superconducting RF linear accelerator is under construction in Mol, Belgium. The machine will produce an instantaneous proton beam current of 4 mA and represents the first step toward the construction of the MYRRHA Accelerator-Driven System (ADS). Such a machine presents several technical challenges for the control of its RF cavities.
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First, the required...
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