CYCLOTRONS 2010 - List of Keywords (lattice)

Paper	Title	Other Keywords	Page
MOPCP108	Design of High Energy Hadron FFAGs for ADSR and other Applications	proton, ion, extraction, injection	269
	B. Qin, Y. Mori, T. Planche KURRI, Osaka, Japan K. Okabe University of Fukui, Faculty of Engineering, Fukui, Japan
	Design study of high energy proton FFAG accelerator has been carried out at Kyoto University Research Reactor for the next generation ADSR experiment where the proton beam energy covers up to 700 MeV. The scaling type of FFAG with spiral sectors was employed. Details of the design, especially on the operational working points and dynamic apertures are described in this paper. Also, some possibility to apply this design to hadron therapy accelerators is presented.

THA1CIO01	FFAG Developments in Japan	acceleration, proton, optics, betatron	376
	Y. Mori KURRI, Osaka, Japan
	Recent activities of the research and development works on FFAG accelerators in Japan are reviewed in this talk.
	Slides THA1CIO01 [27.606 MB]

THA1CIO02	First Commissioning Results from the Non-Scaling FFAG Accelerator, EMMA	septum, controls, acceleration, injection	384
	S.L. Smith STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
	The first results from commissioning EMMA - the Electron Model of Many Applications- are summarised in this paper. EMMA is a 10 to 20 MeV electron ring designed to test our understanding of beam dynamics in a relativistic linear non-scaling fixed field alternating gradient accelerator (FFAG). EMMA will be the world's first non-scaling FFAG and the paper will outline the characteristics of the beam injected in to the accelerator as well as summarising the results of the 4 sector 'gantry-type' commissioning which took place at Daresbury Laboratory. The paper will report on recent progress made with the full EMMA ring commissioning, giving details of tune and orbit measurements as well as their correction to the desired lattice.
	Slides THA1CIO02 [5.404 MB]

THA1CCO04	Cyclotron and FFAG Studies Using Cyclotron Codes	cyclotron, focusing, synchrotron, proton	395
	M.K. Craddock UBC & TRIUMF, Vancouver, British Columbia, Canada Y.-N. Rao TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
	This paper describes the use of cyclotron codes to study the beam dynamics of both high-energy isochronous cyclotrons using AG focusing and non-scaling (NS) FFAGs. The equilibrium orbit code CYCLOPS determines orbits, tunes and period at fixed energies, while the general orbit code GOBLIN tracks a representative bunch of particles through the acceleration process. The results for radial-sector cyclotrons show that the use of negative valley fields allows axial focusing to be maintained, and hence intense cw beams to be accelerated, to energies ≈10 GeV. The results for FFAGs confirm those obtained with lumped-element codes, and suggest that cyclotron codes will prove to be important tools for evaluating the measured fields of FFAG magnets.
	Slides THA1CCO04 [1.750 MB]

Paper

Title

Other Keywords

Page

MOPCP108

Design of High Energy Hadron FFAGs for ADSR and other Applications

proton, ion, extraction, injection

269

B. Qin, Y. Mori, T. Planche
KURRI, Osaka, Japan
K. Okabe
University of Fukui, Faculty of Engineering, Fukui, Japan

Design study of high energy proton FFAG accelerator has been carried out at Kyoto University Research Reactor for the next generation ADSR experiment where the proton beam energy covers up to 700 MeV. The scaling type of FFAG with spiral sectors was employed. Details of the design, especially on the operational working points and dynamic apertures are described in this paper. Also, some possibility to apply this design to hadron therapy accelerators is presented.

THA1CIO01

FFAG Developments in Japan

acceleration, proton, optics, betatron

376

Y. Mori
KURRI, Osaka, Japan

Recent activities of the research and development works on FFAG accelerators in Japan are reviewed in this talk.

Slides THA1CIO01 [27.606 MB]

THA1CIO02

First Commissioning Results from the Non-Scaling FFAG Accelerator, EMMA

septum, controls, acceleration, injection

384

S.L. Smith
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom

The first results from commissioning EMMA - the Electron Model of Many Applications- are summarised in this paper. EMMA is a 10 to 20 MeV electron ring designed to test our understanding of beam dynamics in a relativistic linear non-scaling fixed field alternating gradient accelerator (FFAG). EMMA will be the world's first non-scaling FFAG and the paper will outline the characteristics of the beam injected in to the accelerator as well as summarising the results of the 4 sector 'gantry-type' commissioning which took place at Daresbury Laboratory. The paper will report on recent progress made with the full EMMA ring commissioning, giving details of tune and orbit measurements as well as their correction to the desired lattice.

Slides THA1CIO02 [5.404 MB]

THA1CCO04

Cyclotron and FFAG Studies Using Cyclotron Codes

cyclotron, focusing, synchrotron, proton

395

M.K. Craddock
UBC & TRIUMF, Vancouver, British Columbia, Canada
Y.-N. Rao
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada

This paper describes the use of cyclotron codes to study the beam dynamics of both high-energy isochronous cyclotrons using AG focusing and non-scaling (NS) FFAGs. The equilibrium orbit code CYCLOPS determines orbits, tunes and period at fixed energies, while the general orbit code GOBLIN tracks a representative bunch of particles through the acceleration process. The results for radial-sector cyclotrons show that the use of negative valley fields allows axial focusing to be maintained, and hence intense cw beams to be accelerated, to energies ≈10 GeV. The results for FFAGs confirm those obtained with lumped-element codes, and suggest that cyclotron codes will prove to be important tools for evaluating the measured fields of FFAG magnets.

Slides THA1CCO04 [1.750 MB]