International Workshop on Fixed Field alternating gradient Accelerators (FFA’19)

Session

Vertical FFA

19 Nov 2019, 11:45

WBGB/019 (TimeOut)

25. Muon production and acceleration with FFA

Prof. Yoshiharu Mori (Kyoto University)

19/11/2019, 11:45

A new scheme for muon production and acceleration with FFAG is presented.

10. ISIS upgrade and feasibility study

Shinji Machida (STFC RAL)

19/11/2019, 14:00

As a future upgrade option of the ISIS neutron and muon source, we consider FFA as a proton driver. Vertical excursion FFA (vFFA) was chosen because of compact and less complex structure of the main lattice magnets although the maximum field is relatively high. As a proof of principle of the vFFA concept, a prototype machine to accelerate from 3 to 12 MeV is being designed. We will discuss the...

11. FFA for muon accumulation and acceleration

Shinji Machida (STFC RAL)

19/11/2019, 14:30

Vertical excursion FFA's (vFFA) momentum compaction factor is zero like linac. That makes the machine isochronous for ultra-relativistic particles. Applications of vFFA for muon accumulation and acceleration were considered. It would be ideal as a muon accumulator of the LEMMA scheme and a muon accelerator of collider complex. We will discuss the design and issues.

30. vFFA optics, dynamics, codes and magnets

Dr Jean-Baptiste Lagrange

19/11/2019, 14:45

23. FFA injection systems using pulsed magnets

Dr Rogers Chris

19/11/2019, 16:00

Existing FFAs use fixed field injection systems, possibly using charge exchange foils. In synchrotrons it is more conventional to use pulsed magnets to bring beam into the ring in addition to the charge exchange injection. In this presentation the use of a pulsed magnet system is considered for injection into horizontal and vertical FFAs proposed for ISIS upgrades. Simulation of the lattices...

6. Study of orbit analysis method in an optical design of the Vertical FFA

Mr Kyosuke Adachi (kyushu university)

19/11/2019, 16:45

The purpose of this study is a basic research for an optical design of the Vertical FFA. This study proposed a New method of an orbit analysis using an approximate transfer matrix and verified. In addition to this, I report current progress of a design electromagnet with Opera3d.

1. Permanent Magnet VFFA for 18GeV Electron Acceleration

Stephen Brooks (BNL)

19/11/2019, 17:30

Fixed-field accelerators with vertical orbit excursion (VFFAs) have the interesting property that the matched beam orbit shape, circumference and optics stay constant with beam momentum. This requires magnets with a vertically exponential field $B_y=B_0 e^{ky}$ on the $x=0$ midplane. This paper presents prototype measurements of such a magnet, along with a lattice using similar magnets that...