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The concept of a fixed field alternating gradient (FFAG) accelerator was invented in the 1950s. Although many studies were carried out up to the late 1960s, there has been relatively little progress until recently, when it received…

Accelerator Physics · Physics 2013-02-11 Shinji Machida

A novel scaling type of Fixed-Field Alternating-Gradient (FFAG) accelerator is proposed that solves the major problems of conventional scaling FFAGs. This scaling FFAG accelerator combines reverse bending magnets of the radial sector type…

Accelerator Physics · Physics 2017-08-16 Shinji Machida

These notes provide an overview of Fixed-Field Alternating-Gradient (FFAG) accelerators for medical applications. We begin with a review of the basic principles of this type of accelerator, including the scaling and non-scaling types,…

Accelerator Physics · Physics 2024-03-06 S. L. Sheehy

Fixed-field Alternating Gradient (FFAG) accelerators offer the potential of high-quality, moderate energy ion beams at low cost. Modeling of these structures is challenging with conventional beam tracking codes because of the large radial…

Accelerator Physics · Physics 2012-02-06 George I. Bell , Dan T. Abell

Accelerators are playing increasingly important roles in basic science, technology, and medicine including nuclear power, industrial irradiation, material science, and neutrino production. Proton and light-ion accelerators in particular…

Accelerator Physics · Physics 2012-08-30 C. Johnstone , M. Berz , K. Makino , P. Snopok

In this paper, we investigate the stability of the particle trajectories in Fixed Field alternating gradient Accelerators (FFA) in the presence of field errors: The emphasis is on the scaling radial sector FFA type: a collaboration work is…

Accelerator Physics · Physics 2020-05-27 Malek Haj Tahar , François Méot

Non scaling Fixed-Field Alternating Gradient (FFAG) accelerators have an unprecedented potential for muon acceleration, as well as for medical purposes based on carbon and proton hadron therapy. They also represent a possible active element…

Accelerator Physics · Physics 2011-10-18 James K. Jones , Bruno D. Muratori , Susan L. Smith , Stephan I. Tzenov

In the recent decades of particle accelerator R&D area, fixed field alternating gradient (FFAG) accelerator has become a highlight for some advantages of its higher beam intensity and lower cost, although there are still some technical…

Accelerator Physics · Physics 2013-05-14 Luo Huan-li , Xu Yu-cun , Wang Xiang-qi , Xu Hong-Liang

Given their 2.2 microsecond lifetime, muons must be accelerated fairly rapidly for a neutrino factory or muon collider. Muon bunches tend to be large. Progress in fixed field, alternating gradient (FFAG) lattices to meet this challenge is…

Accelerator Physics · Physics 2008-11-26 D. J. Summers

Fixed-field alternating gradient accelerators are promising candidates for next-generation 10 MW-class high power proton drivers. Recent advances in lattice design of non-scaling FFAGs have progressed toward both isochronicity and chromatic…

Accelerator Physics · Physics 2013-10-15 S. L. Sheehy , C. Johnstone , R. Barlow , A. Adelmann

The next generation of lepton flavor violation experiments need high intensity and high quality muon beams. Production of such beams requires sending a short, high intensity proton pulse to the pion production target, capturing pions and…

A key challenge in particle accelerators is to achieve high peak intensity. Space charge is particularly strong at lower energy such as during injection and typically limits achievable peak intensity. The beam stacking technique can…

In this paper, a novel concept combining a fixed field alternating gradient accelerator with time-varying quadrupoles is presented which solves some of the major problems of conventional fixed field accelerators. This concept combines a…

Accelerator Physics · Physics 2019-05-15 Malek Haj Tahar , David J. Brenner , Gerhard Randers-Pehrson

NORMA is a design for a normal-conducting race track fixed-field alternating-gradient accelerator (FFAG) for protons from 50 to 350 MeV. In this article we show the development from an idealised lattice to a design implemented with field…

Accelerator Physics · Physics 2017-10-25 S. Tygier , K. Marinov , R. B. Appleby , J. Clarke , J. M. Garland , H. Owen , B. Shepherd

The next generation of high-energy physics experiments requires high intensity protons in the multi-GeV energy range for efficient production of secondary beams. The Fermilab long-term future requires an 8 GeV proton source to feed the Main…

Accelerator Physics · Physics 2012-03-09 L. Jenner , C. Johnstone , D. Neuffer , J. Pasternak

High energy and high beam power accelerators are extensively used for the neutrino physics research. At present, the leading operational facilities are the Fermilab Main Injector complex that delivers over 0.75 MW of 120 GeV protons on the…

Accelerator Physics · Physics 2019-06-19 Vladimir Shiltsev

We discuss techniques for probing the effects of a constant force acting on cold atoms using two configurations of a grating echo-type atom interferometer. Laser-cooled samples of $^{85}$Rb with temperatures as low as 2.4 $\mu$K have been…

Atomic Physics · Physics 2013-02-05 B. Barrett , I. Chan , A. Kumarakrishnan

KAERI (Korea Atomic Energy Research Institute) has been performing the project named KOMAC (Korea Multi-purpose Accelerator Complex) within the frame work of national mid and long term nuclear research plan. The final objectives of KOMAC is…

Accelerator Physics · Physics 2010-01-05 B. H. Choi

Fermilab is upgrading its Booster synchrotron to increase ramp rate and intensity. This is part of the Proton Improvement Plan (PIP-II) that will allow the Main Injector to achieve proton beam power of 1.2 MW within the next few years. This…

Field-programmable gate array (FPGA) based accelerators are being widely used for acceleration of convolutional neural networks (CNNs) due to their potential in improving the performance and reconfigurability for specific application…

Image and Video Processing · Electrical Eng. & Systems 2020-02-04 Martin Ferianc , Hongxiang Fan , Ringo S. W. Chu , Jakub Stano , Wayne Luk
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