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The Fermilab Linac delivers 400MeV, 25mA H$^-$; beam. The longitudinal bunch parameters are reconstructed using a Bunch Shape Monitor (BSM) installed in the middle of the Linac. For that, the bunch length is measured as a function of the…

Accelerator Physics · Physics 2025-09-18 R. Sharankova , J-P. Carneiro , E. Chen , A. Shemyakin

Recirculating energy recovery linacs are a promising technology for delivering high power particle beams ($\sim$GW) while only requiring low power ($\sim$kW) RF sources. This is achieved by decelerating the used bunches and using the energy…

Accelerator Physics · Physics 2020-07-22 S. Setiniyaz , R. Apsimon , P. H. Williams

The CLIC Test Facility (CTF3) is an intermediate step to demonstrate the technical feasibility of the key concepts of the new RF power source for CLIC. CTF3 will use electron beams with an energy range adjustable from 170 MeV (3.5 A) to 380…

Accelerator Physics · Physics 2008-11-26 L. Rinolfi , H. Braun , R. Pittin , F. Zhou , B. Mouton , R. Miller , D. Yeremian

With electron beam durations down to femtoseconds and sub-femtoseconds achievable in current state-of-the-art accelerators, longitudinal bunch length diagnostics with resolution at the attosecond level are required. In this paper, we…

A new experimental area designed to develop, test and verify muon ionization cooling apparatus using the 400-MeV Fermilab Linac proton beam has been fully installed and is presently being commissioned. Initially, this area was used for…

A superconducting linear accelerator operating in continuous-wave mode could produce X-ray free electron lasers (XFEL) at megahertz repetition rate, with the capability that delivering wide spectral range coherent radiation to multi end…

Accelerator Physics · Physics 2021-06-02 Guanglei Wang , Jiawei Yan , Nanshun Huang , Duan Gu , Meng Zhang , Haixiao Deng , Bo Liu , Dong Wang , Xueming Yang , Zhentang Zhao

This review paper describes the energy-upgraded CEBAF accelerator. This superconducting linac has achieved 12 GeV beam energy by adding 11 new high-performance cryomodules containing eighty-eight superconducting cavities that have operated…

Accelerator Physics · Physics 2024-09-02 P. A. Adderley , S. Ahmed , T. Allison , R. Bachimanchi , K. Baggett , M. BastaniNejad , B. Bevins , M. Bevins , M. Bickley , R. M. Bodenstein , S. A. Bogacz , M. Bruker , A. Burrill , L. Cardman , J. Creel , Y. -C. Chao , G. Cheng , G. Ciovati , S. Chattopadhyay , J. Clark , W. A. Clemens , G. Croke , E. Daly , G. K. Davis , J. Delayen , S. U. De Silva , R. Dickson , M. Diaz , M. Drury , L. Doolittle , D. Douglas , E. Feldl , J. Fischer , A. Freyberger , V. Ganni , R. L. Geng , C. Ginsburg , J. Gomez , J. Grames , J. Gubeli , J. Guo , F. Hannon , J. Hansknecht , L. Harwood , J. Henry , C. Hernandez-Garcia , S. Higgins , D. Higinbotham , A. S. Hofler , T. Hiatt , J. Hogan , C. Hovater , A. Hutton , C. Jones , K. Jordan , M. Joyce , R. Kazimi , M. Keesee , M. J. Kelley , C. Keppel , A. Kimber , L. King , P. Kjeldsen , P. Kneisel , J. Koval , G. A. Krafft , G. Lahti , T. Larrieu , R. Lauze , C. Leemann , R. Legg , R. Li , F. Lin , D. Machie , J. Mammosser , K. Macha , K. Mahoney , F. Marhauser , B. Mastracci , J. Matalevich , J. McCarter , M. McCaughan , L. Merminga , R. Michaud , V. Morozov , C. Mounts , J. Musson , R. Nelson , W. Oren , R. B. Overton , G. Palacios-Serrano , H. -K. Park , L. Phillips , S. Philip , F. Pilat , T. Plawski , M. Poelker , P. Powers , T. Powers , J. Preble , T. Reilly , R. Rimmer , C. Reece , H. Robertson , Y. Roblin , C. Rode , T. Satogata , D. J. Seidman , A. Seryi , A. Shabalina , I. Shin , R. Slominski , C. Slominski , M. Spata , D. Spell , J. Spradlin , M. Stirbet , M. L. Stutzman , S. Suhring , K. Surles-Law , R. Suleiman , C. Tennant , H. Tian , D. Turner , M. Tiefenback , O. Trofimova , A. -M. Valente , H. Wang , Y. Wang , K. White , C. Whitlatch , T. Whitlatch , M. Wiseman , M. J. Wissman , G. Wu , S. Yang , B. Yunn , S. Zhang , Y. Zhang

Photons emitted from high-energy electron beam interactions with high-field systems, such as the upcoming FACET-II experiments at SLAC National Accelerator Laboratory, may provide deep insight into the electron beam's underlying dynamics at…

Accelerator Physics · Physics 2024-09-05 M. Yadav , M. H. Oruganti , B. Naranjo , G. Andonian , Ö. Apsimon , C. P. Welsch , J. B. Rosenzweig

This paper discusses the reconstruction of partially sampled spectrum-images to accelerate the acquisition in scanning transmission electron microscopy (STEM). The problem of image reconstruction has been widely considered in the literature…

Image and Video Processing · Electrical Eng. & Systems 2020-02-05 Etienne Monier , Thomas Oberlin , Nathalie Brun , Xiaoyan Li , Marcel Tencé , Nicolas Dobigeon

The photon flux resulting from high-energy electron beam interactions with high field systems, such as in the upcoming FACET-II experiments at SLAC National Accelerator Laboratory, may give deep insight into the electron beam's underlying…

Accelerator Physics · Physics 2023-09-26 M. Yadav , M. Oruganti , S. Zhang , B. Naranjo , G. Andonian , Y. Zhuang , Ö. Apsimon , C. P. Welsch , J. B. Rosenzweig

In superconducting linear accelerators (linacs), accurately monitoring beam dynamics is essential for minimizing beam losses and ensuring stable operations. However, destructive diagnostics must be avoided in superconducting sections to…

We report the results of a recent beam dynamics study, motivated by the need to redesign the LCLS photoinjector, that lead to the discovery of a new effective working point for a split RF photoinjector. We consider the emittance…

Principal component analysis is performed on Birkeland or field-aligned current (FAC) measurements from the Active Magnetosphere and Planetary Electrodynamics Response Experiment. Principal component analysis (PCA) identifies the patterns…

Space Physics · Physics 2016-06-06 S. E. Milan , J. A. Carter , H. Korth , B. J. Anderson

This paper 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 photo-cathode…

Accelerator Physics · Physics 2019-05-21 T. Åkesson , R. Corsini , Y. Dutheil , L. Evans , B. Goddard , A. Grudiev , A. Latina , Y. Papaphilippou , S. Stapnes

A novel, non-invasive method of measuring the beam energy at the International Linear Collider is proposed. Laser light collides head-on with beam particles and either the energy of the Compton scattered electrons near the kinematic…

Instrumentation and Detectors · Physics 2009-08-05 N. Muchnoi , H. J. Schreiber , M. Viti

LINAC 4 is a normal conducting H- structure proposed to intensify the proton flux currently available for the CERN accelerator chain. This linac is designed to accelerate a 65 mA beam up to 160 MeV to be injected into the CERN Proton…

Accelerator Physics · Physics 2014-11-18 M. Baylac , J. M. De Conto , E. Froidefond , E. Sargsyan

This article discusses the physics programme of the TOTEM experiment at the LHC. A new special beam optics with beta* = 90 m, enabling the measurements of the total cross-section, elastic pp scattering and diffractive phenomena already at…

High Energy Physics - Experiment · Physics 2019-08-14 K. Eggert , V. Avati , M. Deile

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 Project 8 collaboration seeks to measure the absolute neutrino mass scale by means of precision spectroscopy of the beta decay of tritium. Our technique, cyclotron radiation emission spectroscopy, measures the frequency of the radiation…