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Observational and theoretical evidence suggest that beams of accelerated particles are produced in flaring events of all sizes in the solar atmosphere, from X-class flares to nanoflares. Current models of these types of particles in flaring…

Solar and Stellar Astrophysics · Physics 2020-10-28 L. Frogner , B. V. Gudiksen , H. Bakke

High-frequency hadron-therapy linacs have been studied for the last 20 years and are now being built for dedicated proton-therapy centres. The main reason for using high-frequency linacs, in spite of the small apertures and low-duty cycle,…

Medical Physics · Physics 2018-04-24 Alberto Degiovanni

The continue wave (CW) high current proton linac has wide applications as the front end of the high power proton machines. The low energy part is the most difficult one and there is no widely accepted solution yet. Based on the analysis of…

Accelerator Physics · Physics 2015-07-14 Zhihui Li

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

The beam properties of low-energy neutrino beams that would be possible at an upgraded 2 MW Fermilab 8 GeV Proton Source are described. In particular three options are considered; (i) a MiniBooNE-like beam using a conventional neutrino…

High Energy Physics - Experiment · Physics 2007-05-23 S. J. Brice , S. Geer , K. Paul , R. Tayloe

To realize and test advanced accelerator concepts and hardware, a beamline is being reconfigured in the Linac Extension Area (LEA) of APS linac. A photo-cathode RF gun installed at the beginning of the APS linac will provide a low emittance…

Accelerator Physics · Physics 2018-06-20 Seunghwan Shin , Yine Sun , Jeff Dooling , Alexander Zholents

PIP-II is an essential upgrade of the Fermilab complex that will enable the worlds most intense high-energy beam of neutrinos for the international Deep Underground Neutrino Experiment at LBNF and support a broad physics program at…

Accelerator Physics · Physics 2022-09-07 Abhishek Pathak , Eduard Pozdeyev

Using the China Spallation Neutron Source (CSNS) linac as the injector, a 500 MeV proton synchrotron is proposed for multidisciplinary application, such as biology, material and proton therapy. The synchrotron will deliver proton beam with…

Accelerator Physics · Physics 2016-09-21 Liang-Sheng Huang , Sheng Wang , Hong-Fei Ji

The Pohang Accelerator Laboratory operates an electron linac for the pulsed neutron source as one of the long-term nuclear R&D programs at the Korea Atomic Energy Research Institute. The designed beam parameters are as follows; The nominal…

Accelerator Physics · Physics 2008-11-26 G. N. Kim , H. S. Kang , Y. S. Lee , M. H. Cho , I. S. Ko , W. Namkung

In particle accelerators, transverse-longitudinal coupling (TLC) dynamics can be invoked for efficient bunch compression or high harmonic generation when one of the transverse eigenemittance is small. In this sense, complete or partial…

Accelerator Physics · Physics 2023-11-21 Xiujie Deng

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

Plasma wakefield acceleration (PWFA) holds much promise for advancing the energy frontier because it can potentially provide a 1000-fold or more increase in acceleration gradient with excellent power efficiency in respect with standard…

Laser-driven ion acceleration is an attractive technique for compact high-energy ion sources. Currently, among various physical and technical issues to be solved, the boost of ion energy and the reduction of energy spread represent the key…

Plasma Physics · Physics 2022-07-19 Xing-Long Zhu , Wei-Yuan Liu , Min Chen , Su-Ming Weng , Paul McKenna , Zheng-Ming Sheng , Jie Zhang

In this paper, a self-consistent transverse beam dynamics framework is demonstrated, that incorporates acceleration into the transverse beam dynamics studies for a proton linac machine. Two focusing schemes are developed and discussed; the…

Accelerator Physics · Physics 2024-03-18 Matthew Southerby , Robert Apsimon

As compared to electron storage rings, one advantage of recirculating linear accelerators is that the beam properties at target are no longer dominated by the equilibrium between quantum radiative diffusion and radiation damping because new…

Accelerator Physics · Physics 2014-11-18 G. A. Krafft , J. -C. Denard , R. W. Dickson , R. Kazimi , V. A. Lebedev , M. G. Tiefenback

We propose a scheme to overcome the great challenge of polarization loss in spin-polarized ion acceleration. When a petawatt laser pulse penetrates through a compound plasma target consisting of a double layer slab and prepolarized hydrogen…

Plasma Physics · Physics 2020-11-24 Zheng Gong , Yinren Shou , Yuhui Tang , Xueqing Yan

Using laser accelerated protons or ions for various applications - for example in particle therapie or short-pulse radiographic diagnostics - requires an effective method of focusing and energy selection. We derive an analytical scaling for…

Accelerator Physics · Physics 2015-06-12 Ingo Hofmann

In the DAE{\delta}ALUS (Decay-At-rest Experiment for {\delta}CP studies At the Laboratory for Underground Science) project, high power H+2 cyclotron chains are proposed to efficiently provide proton beams with a kinetic energy of 800 MeV…

Accelerator Physics · Physics 2015-06-11 J. J. Yang , A. Adelmann , W. Barletta , L. Calabretta , J. M. Conrad

Dielectric laser acceleration draws upon nano-fabrication techniques to build photonic structures for high gradient electron acceleration. At the small spatial scales characteristic of these structures conventional accelerator techniques…

Accelerator Physics · Physics 2019-01-16 David Cesar , Pietro Musumeci , R. Joel England

Recently, the Low-Energy Demonstration Accelerator (LEDA) portion of the Accelerator Production of Tritium (APT) project reached its 100-mA, 8-hr CW beam operation milestone. LEDA consists of a 75-keV proton injector, 6.7-MeV, 350-MHz CW…

Accelerator Physics · Physics 2007-05-23 L. J. Rybarcyk , J. D. Schneider , H. V. Smith , L. M. Young , M. E. Schulze