STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
EMMA (Electron Machine with Many Applications) is a prototype non-scaling electron FFAG to be hosted at Daresbury Laboratory. NS-FFAGs related to EMMA have an unprecedented potential for medical accelerators for carbon and proton hadron therapy. It also represents a possible active element for an ADSR (Accelerator Driven Sub-critical Reactor). This paper will summarize the design of the extraction and injection transfer lines of the NS-FFAG as well as the septa and kickers used to inject into the EMMA ring. In order to operate EMMA, the ALICE energy recovery linac prototype shall be used as injector and the energy will range from 10 to 20 MeV. Because this would be the first non-scaling FFAG, it is important that as many of the bunch properties are studied as feasible, both at injection and at extraction. To do this, a complex injection line was designed consisting of a dogleg to extract the beam from ALICE, a matching section, a tomography section and some additional dipoles and quadrupoles to transport the beam to the entrance of EMMA. In parallel with injection, extraction and a dedicated extraction / diagnostic line is also discussed.
KAERI, Daejon
BNL, Upton, Long Island, New York
The 100-MeV proton linac of the proton engineering frontier project (PEFP) can be used as an injector of a rapid cycling synchrotron (RCS). The design study of the RCS is in process. The main purpose of the RCS is a spallation neutron source. The initial beam power is 60 kW where the injection and extraction energies are 100 MeV and 1 GeV, respectively. It will be extended to 500 kW through the upgrades of the injection energy to 200 MeV, the extraction energy to 2-GeV, and the repetition rate from 15 Hz to 30 Hz. The slow extraction option is also included in the design for basic and applied science researches. This work summarized the present design status of the PEFP RCS.
BNL, Upton, Long Island, New York
Examples of new possible applications of the racetrack non-scaling FFAG (NS-FFAG) will be shown with detail designs: A small permanent proton cancer therapy machine, the ADSR with superconducting cavities, the proton or pion storage rings made of the non-scaling FFAG with large momentum acceptance (dp/p=± 30%) for longitudinal manipulations, a new design of the PRISM with NS-FFAG for the muon acceptance storage ring (collaboration with UK), and RLA with racetrack or dog-bone recent examples (collaboration with Alex Bogacz at IPAC).