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It is proposed to place the arcs of an SLC-type facility inside the tunnel of a Future Circular Collider (FCC). Accelerated by a linear accelerator (linac), electron and positron beams would traverse the bending arcs in opposite directions…

Accelerator Physics · Physics 2018-06-28 Radoje Belusevic

We present a novel laser based ion acceleration scheme, where a petawatt circularly polarized laser pulse is shot on an ultra-thin (nano-scale) double-layer target. Our scheme allows the production of high-quality light ion beams with both…

Plasma Physics · Physics 2013-09-06 M. Grech , S. Skupin , R. Nuter , L. Gremillet , E. Lefebvre

Building an accelerator at six geographically dispersed sites is quite mad, but politically expedient. The Spallation Neutron Source (SNS), currently under construction in Oak Ridge, Tennessee, combines a pulsed 1 Gev H- superconducting…

Accelerator Physics · Physics 2007-05-23 D. P. Gurd

In order to study the dynamic response of the material and the physical mechanism of the fluid dynamics, an accelerator scenario which can be applied to hard X-ray free electron laser and high energy electron radiography was proposed. This…

Ultra-high dose rate electron sources require dose rate independent dosimeters and a calibrated dose control system for accurate delivery. In this study, we developed a single-pulse dose monitoring and a real-time dose-based control system…

In this article, we describe the key features of the recently completed technical design for the International Linear Collider (ILC), a 200-500 GeV linear electron-positron collider (expandable to 1 TeV) that is based on 1.3 GHz…

Accelerator Physics · Physics 2013-11-15 Barry Barish , James E. Brau

In the past decade, the fourth-generation light source based on the combination of Energy Recovery Linac (ERL) and Free-Electron Laser (FEL) using superconducting linear accelerators has garnered significant attention. It holds immense…

Accelerator Physics · Physics 2024-10-24 Xiuji Chen , Zipeng Liu , Si Chen , Duan Gu , Xuan Huang , Houjun Qian , Dong Wang , Haixiao Deng

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

The vibration stability requirements for the Next Linear Collider (NLC) are far more stringent than for the previous generation of Colliders. To meet these goals, it is imperative that the effects of vibration on NLC Linac components from…

Accelerator Physics · Physics 2008-11-26 F. Asiri , F. Le Pimpec , A. Seryi

The construction of the initial part of a normally conducting linac for hydrogen ion beams with a pulsed current of ~20 mA up to an energy of ~70 MeV is considered. The RFQ at a frequency of ~160 MHz accelerates ions to an energy of ~4 MeV.…

Accelerator Physics · Physics 2023-09-21 V. V. Paramonov , A. P. Durkin , L. Yu. Ovchinnikova , I. V. Rybakov

A compact accelerator design for irradiation purposes is being proposed at KEK. This design targets an energy of 10 MeV and a current of 50 mA. Current design includes a 100 kV thermionic DC electron gun with an RF grid, 1-cell…

Accelerator Physics · Physics 2024-04-15 Olga Tanaka , Yosuke Honda , Masahiro Yamamoto , Tomohiro Yamada , Hiroshi Sakai

A light source based on an Energy Recovered Linac (ERL) [1] consist of a superconducting linac and a transfer line that includes wigglers and undulators to produce the synchrotron light. The transfer line brings the electrons bunches back…

Adaptation and Self-Organizing Systems · Physics 2007-05-23 Andrew Hutton

One pathway to producing high brightness electron beams is to use a radio-frequency (rf) driven high field photogun to rapidly accelerate photoemitted electrons to the relativistic regime and preserve the brightness. However, the highest…

Accelerator Physics · Physics 2026-05-04 Wei Hou Tan , River Robles , Juan Hernandez , Emilio Alessandro Nanni , Ankur Dhar

Proposed fourth generation light sources using SASE FELs to generate short pulse, coherent, X-rays require demonstration of high brightness electron sources. The Gun Test Facility (GTF) at SLAC was built to test high brightness sources for…

Electron beam induced current (EBIC) is a powerful technique which measures the charge collection efficiency of photovoltaics with sub-micron spatial resolution. The exciting electron beam results in a high generation rate density of…

Materials Science · Physics 2014-10-17 Paul M. Haney , Heayoung P. Yoon , Prakash Koirala , Robert W. Collins , Nikolai B. Zhitenev

A new ion source will be prepared for the CYCLONE30 commercial cyclotron with a much advanced performance compared with the previous one. The newly designed ion source has a very large transparency without deteriorating the beam optics,…

Accelerator Physics · Physics 2013-06-06 Maryam Hosseinzadeh , Hossein Afarideh

In this paper, we present a programmable Ultra Low DC Current Source (ULCS) developed at T\"UB\.ITAK UME. The output current range is from 1 fA up to 100 pA with 100 aA resolution and is directly traceable to DC voltage, capacitance and…

Instrumentation and Detectors · Physics 2019-07-23 Omer Erkan , Yakup Gulmez , Cem Hayirli , Gulay Gulmez , Enis Turhan

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

We report on the optical commissioning of the high power laser beam circulator (LBC) for the high brightness Compton {\gamma}-ray source Extreme Light Infrastructure for Nuclear Physics. Tests aiming at demonstrating the optical…

A 5-MeV RFQ designed for a proton current up to 100-mA CW is now under construction as part of the High Intensity Proton Injector project (IPHI). Its computed transmission is greater than 99 %. The main goals of the project are to verify…