STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
JAI, Oxford
Cockcroft Institute, Warrington, Cheshire
We describe a design for a two-pass recirculating 1.3 GHz superconducting linac as a driver for the suite of free-electron lasers proposed in the UK New Light Source project. The machine will deliver longitudinally compressed electron bunches with repetition rates of 1 kHz with an initial upgrade path to increase this to 1 MHz. A modular philosophy is employed to separate beam injection and extraction from a three stage compression scheme. Results show that the necessary high peak currents can be achieved whilst preserving beam quality.
Diamond, Oxfordshire
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
LBNL, Berkeley, California
The New Light Source (NLS) project was launched in April 2008 by the UK Science and Technology Facilities Council (STFC) to consider the scientific case and develop a conceptual design for a possible next generation light source based on a combination of advanced conventional laser and free-electron laser sources. In this paper we present the results of the optimisation of a single pass superconducting LINAC as a driver for the the NLS FELs. The optimisation process requires the analysis of complicated electron beam dynamics in the presence of CSR, wakefields and space charge and has specifically taken into account the requirements for FEL operation in a seeded harmonic cascade scheme.
STFC/DL/ASTeC, Daresbury, Warrington, Cheshire
The next generation light source for the UK requires transport, collimation and dumping of high power, high quality beams. The accelerated beam must be transported to several different FELs. A design for the post-linac beam collimation, spreader (including diagnostics), and dump is presented.