| Paper | Title | Page |
|---|
| MO202 | Status of the Cornell ERL injector cryomodule | 9 |
| | - M. Liepe, S. Belomestnykh, E. Chojnacki, V. Medjidzade, H. Padamsee, P. Quigley, J. Sears, V. Shemelin, V. Veshcherevich
CLASSE, Cornell University
| |
| | Cornell University is developing and fabricating a SRF
injector cryomodule for the acceleration of the high current
(100 mA) beam in the Cornell ERL prototype and ERL
light source. Major challenges include emittance preservation
of the low energy, ultra low emittance beam, cw cavity
operation, and strong HOM damping with efficient HOM
power extraction. Axial symmetry of HOM absorbers, together
with two symmetrically placed input couplers per
cavity, avoid transverse on-axis fields, which would cause
emittance growth. Fabrication of five 2-cell niobium cavities
and coaxial blade tuners, ten twin high power input
couplers, and six beam line HOM absorbers has finished.
The injector cryomodule is presently under assembly at
Cornell University with beam test planned for early 2008.
In this paper we report on the cryomodule fabrication and
assembly status. | |
 | Slides(PDF) | |
| WEP26 | High power tests of input couplers for Cornell ERL injector | 517 |
| | - V. Veshcherevich, S. Belomestnykh, P. Quigley, J. Reilly, J. Sears
Cornell University
| |
| | RF power couplers for the ERL injector, currently
under construction at Cornell University, have been
fabricated. The couplers were assembled in pairs in the
liquid nitrogen cryostat, built for their tests. First two
prototype couplers were tested using an IOT transmitter
and a resonant ring for additional power amplification.
They were tested up to the goal power level of 50 kW CW
and used later for tests of the first injector cavity.
However, the first pair of couplers showed excessive
temperature rise in some points. Therefore, minor
changes in the design have been done to improve cooling.
The couplers of updated design were successfully tested
from a klystron up to the power level of 60 kW CW. In
situ baking was implemented for coupler installed in the
cryostat. | |