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We report on the development of a radio frequency (RF) linear accelerator (linac) for multiple-ion beams that is made from stacks of low cost wafers. The accelerator lattice is comprised of RF-acceleration gaps and electrostatic quadrupole…

Alignment of the ILC main linac will be more critical than for any currently existing accelerators due to its long length and the ultra low emittance required. There are several techniques for measuring the ILC reference network; in this…

Instrumentation and Detectors · Physics 2009-02-02 John Dale , Armin Reichold

Superconducting radio-frequency (SRF) guns are promising candidates to deliver high brightness continuous-wave (CW) electron beams for new generations of coherent linac light sources, ultrafast electron diffractions, MeV pulsed beam…

Accelerator Physics · Physics 2024-10-08 H. Jia , T. Li , T. Wang , Y. Zhao , X. Zhang , H. Xu , Z. Liu , J. Liu , L. Lin , H. Xie , L. Feng , F. Wang , F. Zhu , J. Hao , S. Quan , K. Liu , S. Huang

A high peak current, flat longitudinal phase space electron beam is desirable for efficient x-ray free electron laser (FEL) radiation in next generation light sources. To attain such a beam requires the extensive design of the linear…

Accelerator Physics · Physics 2019-10-23 Ji Qiang

Configuring clinical linear accelerators (linacs) for ultra-high dose rate (UHDR) electron experiments typically requires invasive hardware manipulation and/or irreversible manufacturer modifications, limiting broader implementation. We…

Free Electron Lasers driven by Super-Conducting Linacs require the generation, acceleration and transport of trains of bunches with high charge, high repetition rate and low emittance. A numerical model already developed for the modeling of…

Accelerator Physics · Physics 2007-05-23 M. Ferrario , L. Serafini

The CLIC linear collider aims at accelerating multiple bunches of electrons and positrons and colliding them at a centre of mass energy of 3 TeV. These bunches will be accelerated through X-band linacs, operating at an accelerating…

Accelerator Physics · Physics 2014-11-18 V. Khan , R. M. Jones

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 development of the new RFQ Cooler, called SHIRaC, was carried out. As a part of SPIRAL 2 facility, SHIRaC aims to handle and cool typical SPIRAL 2 beams with large emittances (up to 80 pi.mm.mrad) and high currents (up to 1 uA). Its…

Accelerator Physics · Physics 2017-12-13 Ramzi Boussaid

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

SRF cavities for particle acceleration are conventionally operated immersed in a bath of liquid helium at 4.2 K and below. Although this cooling configuration is practically and economically viable for large scientific accelerator…

Accelerator Physics · Physics 2022-07-13 R. C. Dhuley , S. Posen , M. I. Geelhoed , J. C. T. Thangaraj

RF power coupler is one of the key components in superconducting (SC) linac. It provides RF power to the SC cavity and interconnects different temperature layers (1.8K, 4.2K, 70K and 300K). TTF-III coupler is one of the most promising…

Accelerator Physics · Physics 2015-05-30 Shilun Pei , Chris E Adolphsen , Zenghai Li , Nikolay A Solyak , Ivan V Gonin

FLASH and the European XFEL are SASE-FEL user facilities, at which superconducting TESLA cavities are operated in a pulsed mode to accelerate long bunch-trains. Several cavities are powered by one klystron. While the low-level rf system is…

Accelerator Physics · Physics 2017-10-16 Thorsten Hellert , Martin Dohlus , Winfried Decking

A conceptual design is presented of a novel ERL facility for the development and application of the energy recovery technique to linear electron accelerators in the multi-turn, large current and large energy regime. The main characteristics…

The KEK 8-GeV electron / 3.5-GeV positron linac has been operated with very different beam specifications for downstream rings, KEKB, PF and PF-AR. For the reliable operation among these beam modes intelligent beam switching and beam…

Accelerator Physics · Physics 2018-09-10 K. Furukawa , A. Enomoto , N. Kamikubota , T. Kamitani , T. Matsumoto , Y. Ogawa , S. Ohsawa , K. Oide , T. Suwada

Background and purpose: To propose a novel machine learning-based method for reliable and accurate modeling of linac beam data applicable to the processes of linac commissioning and QA. Materials and methods: We hypothesize that the beam…

Medical Physics · Physics 2020-10-07 Wei Zhao , Ishan Patil , Bin Han , Yong Yang , Lei Xing , Emil Schüler

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

The Fermilab Linac delivers 400 MeV H- beam to the rest of the accelerator chain. Providing stable intensity, energy, and emittance is key since it directly affects downstream machines. To operate high current beam, accelerators must…

Accelerator Physics · Physics 2023-07-11 R. Sharankova , M. Mwaniki , K. Seiya , M. Wesley

The LHeC provides an intense, high energy electron beam to collide with the LHC. It represents the highest energy application of energy recovery linac (ERL) technology which is increasingly recognized as one of the major pilot technologies…

Accelerator Physics · Physics 2022-06-16 S. Alex Bogacz , Bernhard J. Holzer , John A. Osborne

The main `bottleneck' limiting the beam power in circular machines is caused by space charge effects that produce beam instabilities. To increase maximally the beam power of a `proton driver', it is proposed to build a facility consisting…

Accelerator Physics · Physics 2018-06-28 Radoje Belusevic