| Paper | Title | Page |
|---|
| TUP63 | Initial Experience in Operating the SRF Cryomodules for ERLP | 280 |
| | - S. M. Pattalwar, R. Bate, R. K. Buckley, S. R. Buckley, P. A. Corlett, D. M. Dykes, A. R. Goulden, P. A. McIntosh, A. J. Moss, J. F. Orrett, J. H. P. Rogers
STFC Daresbury Laboratory
| |
| | The Energy Recovery Linac Prototype (ERLP) is
being commissioned at Daresbury Laboratory (UK) to
develop and demonstrate energy recovery to produce IRFEL
radiation using SRF technology. The ERLP uses two
identical Linac cryomodules, one as a booster cavity
accelerating the beam to 8.35 MeV, the other as a linac
module in the re-circulating loop with an energy gain of
26.5 MeV. Each module consists of two 9-cell cavities
operating at a frequency of 1.3 GHz and at a temperature
of 2 K. As there is no energy recovery in the booster it
requires a peak power of 52 kW, whereas the linac
module only requires 12 kW. The cryomodules are cooled
to 2 K by a cryo-system consisting of a 4 K liquefier, 2 K
recuperator with a JT valve and external vacuum pumps.
In this paper we report our initial experiences in operating
the SRF Linacs particularly with cryogenics and RF
systems. | |
| 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. | |