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ARES (Accelerator Research Experiment at SINBAD) is a linear accelerator at the SINBAD (Short INnovative Bunches and Accelerators at DESY) facility at DESY. ARES was designed to combine reproducible beams from conventional RF-based…

The number of parameters in deep neural networks (DNNs) is scaling at about 5$\times$ the rate of Moore's Law. To sustain this growth, photonic computing is a promising avenue, as it enables higher throughput in dominant general…

Beam injections to KEKB and Photon Factory are performed with pulse-to-pulse modulation at 50 Hz. Three very different beams are switched every 20 ms in order to inject those beams into KEKB HER, LER and Photon Factory (PF) simultaneously.…

Accelerator Physics · Physics 2018-09-10 Kazuro Furukawa , Masanori Satoh , Tsuyoshi Suwada , Tatsuro Nakamura

We present design and simulation results on the electron source for 2856 MHz technological electron linac. This device is a combination of an RF gun and a DC diode gun. The designed gun consists of a thermionic cathode, which is mounted on…

Accelerator Physics · Physics 2022-07-27 Victor Mytrochenko , Valentin Zhyglo , Volodymyr Kushnir

Automatic prompt engineering (APE) rewrites prompts to improve downstream task performance, but existing APE loops treat the optimizer itself as a fixed pipeline. We port the code-as-action paradigm of CodeAct (Wang et al., 2024a) to APE…

Computation and Language · Computer Science 2026-05-27 Mengyin Lu , Cong Feng , Huimin Han , Guangming Lu , Yu Sun , Xiaonan Ding , Shihui Long , Fengyi Li , Tanvi Motwani

Plasma-based accelerators (PBAs) driven by either intense lasers (laser wakefield accelerators, LWFAs) or particle beams (plasma wakefield accelerators, PWFAs), can accelerate charged particles at extremely high gradients compared to…

Radio-frequency linear accelerators are used as injectors for synchrotrons and as stand-alone accelerators for the production of intense particle beams, thanks to their ability to accelerate high beam currents at high repetition rates. This…

Accelerator Physics · Physics 2013-03-28 Maurizio Vretenar

Over the last years, the generation and acceleration of ultra-short, high quality electron beams has attracted more and more interest in accelerator science. Electron bunches with these properties are necessary to operate and test novel…

In the rapidly evolving landscape of artificial intelligence, large language models (LLMs) and graph processing have emerged as transformative technologies for natural language processing (NLP), computer vision, and graph-structured data…

Hardware Architecture · Computer Science 2024-01-17 Salma Afifi , Febin Sunny , Mahdi Nikdast , Sudeep Pasricha

The accelerator for the APT Project is a 100 mA CW proton linac with an output energy of 1030 MeV. A High Energy Beam Transport (HEBT) conveys the beam to a raster expander, that provides a large rectangular distribution at a target/blanket…

Accelerator Physics · Physics 2008-11-26 J. F. Tooker , R. Bourque , D. Christiansen , J. Kamperschroer , G. Laughon , M. McCarthy , M. Schulze

Heterogeneous computing is becoming mainstream in all scopes. This new era in computer architecture brings a new paradigm called Accelerator Level Parallelism (ALP). In ALP, accelerators are used concurrently to provide unprecedented levels…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-09-22 Pablo Antonio Martínez , Gregorio Bernabé , Jose Manuel García

The Source Development Lab (SDL) at BNL consists of a 230 MeV electron linac and a 10 m long wiggler for short wavelength Free Electronic Laser (FEL) development. The original control system [1] was based on the one in use at the National…

Accelerator Physics · Physics 2007-05-23 S. K. Feng , W. S. Graves , Y. N. Tang

Leveraging the full scientific capabilities of next-generation high-repetition-rate free-electron lasers requires programmable control over electron-beam properties at their source. The photoinjector drive laser defines the electron beam's…

Large language models (LLMs) present intriguing opportunities to enhance user interaction with traditional algorithms and tools in real-world applications. An advanced planning system (APS) is a sophisticated software that leverages…

Artificial Intelligence · Computer Science 2025-07-25 Timothy Tin Long Yu , Mahdi Mostajabdaveh , Jabo Serge Byusa , Rindra Ramamonjison , Giuseppe Carenini , Kun Mao , Zirui Zhou , Yong Zhang

This paper introduces AutoREC, an open-source Python package for developing reinforcement learning (RL) agents to automatically generate equivalent circuit models (ECMs) from electrochemical impedance spectroscopy (EIS) data. While ECMs are…

High-brightness electron sources are a key ingredient to the development of compact accelerator-based light sources. The electron sources are commonly based on (linear) photoemission process where a laser pulse with proper wavelength…

Accelerator Physics · Physics 2016-08-08 Anusorn Lueangaramwong , Daniel Mihalcea , Gerard Andonian , Philippe Piot

The Liquid Argon Time Projection Chamber (LArTPC) technology plays an essential role in many current and future neutrino experiments. Accurate and fast simulation is critical to developing efficient analysis algorithms and precise physics…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-09-08 Haiwang Yu , Zhihua Dong , Kyle Knoepfel , Meifeng Lin , Brett Viren , Kwangmin Yu

Accelerating applications through the design of hardware accelerators can significantly enhance system performance and energy efficiency. Despite advances, such as high-level synthesis (HLS), designing accelerators for complex applications…

Hardware Architecture · Computer Science 2026-05-18 Abinand Nallathambi , Christopher Knight , Shantanu Ganguly , Wilfried Haensch , Anand Raghunathan

Photoinjectors and Free Electron Lasers (FEL) are amongst the most advanced systems in accelerator physics and have consistently pushed the boundaries of emittance and x-ray peak power. In this paper, laser shaping at the cathode is…

Accelerator Physics · Physics 2023-06-30 Nicole Neveu , Randy Lemons , Joseph Duris , Jingyi Tang , Yuantao Ding , Agostino Marinelli , Sergio Carbajo

The design of the Linac Coherent Light Source assumes that a low-emittance, 1-nC, 10-ps beam will be available for injection into the 15-GeV linac. The proposed rf photocathode injector that will provide a 150-MeV beam with rms normalized…