| Paper | Title | Page |
|---|
| TUP68 | Optimisation of a 1.5-cell High Average Current Gun for 4GLS | 300 |
| | - C. D. Beard, J. W. McKenzie, B. L. Militsyn, B. D. Muratori
STFC Daresbury Laboratory
| |
| | A 100 mA 10 MeV continuous wave electron injector
is required to delivery high brightness electron bunches
for the spontaneous and VUV radiation sources of 4GLS.
One of possible solutions might be a Superconductive RF
(SRF) gun. Optimisation of the first half cell of the gun
has been carried out to maximise the acceleration whilst
providing additional focussing through shaping of the
cathode region to meet the injector specification. In this
paper, the cavity design and specification are presented. | |
| WEP33 | Realisation of a prototype superconducting CW cavity and cryomodule for energy recovery | 545 |
| | - P. A. McIntosh, R. Bate, C. D. Beard, M. Cordwell, D. M. Dykes, S. Pattalwar, J. Strachan, E. Wooldridge
STFC Daresbury Laboratory - S. Belomestnykh, M. Liepe, H. Padamsee
Cornell University - A. Buechner, F. Gabriel, P. Michel
FZR Rossendorf - T. Kimura, T. I. Smith
Stanford University - J. Byrd, J. N. Corlett, D. Li, S. Lidia
LBNL
| |
| | For Energy Recovery applications, the requirement for
high-Q accelerating structures, operating in CW mode, at
large beam currents, with precise phase & amplitude
stability and modest accelerating gradients are all
fundamental in achieving intense photon fluxes from the
synchronised FEL insertion devices. Both Daresbury
Laboratory and Cornell University are developing designs
for advanced Energy Recovery Linac (ERL) facilities
which require accelerating Linacs which meet such
demanding criteria. The specification for the main ERL
accelerator for both facilities dictates a modest
accelerating gradient of 20 MV/m, at a Qo of better than
10^10, with a Qext of up to 10^8. A collaborative R&D
program has been set-up to design and fabricate a 'proof-of-
principle' cryomodule (which is well underway) that
can be tested on ERLP at Daresbury and also on the
Cornell ERL injector. This paper details the new
cryomodule design, provides an insight to the design
solutions employed and reports on the present status of
the project. | |