Abstracts Brochure - CERN

MOPLS — Poster Session 26-Jun-06 16:00 - 18:00
Experience of Operation of Short Period Undulator for E-166
We represent results of operation of 2.54 mm
period, K=0.2, up to 30 Hz undulator used A.A. Mikhailichenko (Cornell University, Department of Physics)
in E-166 experiment for polarized positron
production. One peculiarity is in usage of Ferrofluid for cooling.
ILC Linac R&D at SLAC
Since the ITRP recommendation in 2004 to
use superconducting rf technology for a next C. Adolphsen (SLAC)
generation linear collider, the former NLC
group at SLAC has been actively pursuing a broad range of R&D for this collider (the ILC). In this paper, we review
the progress of those programs relating to linac technology. These include the development of a Marx-style modulator
(120 kV, 120 A, 1.5 ms, 5 Hz) and a 10 MW sheet-beam klystron, construction of an L-band (1.3 GHz) rf source using
a SNS HVCM modulator and commercial klystrons, fabrication and testing of a five-cell L-band cavity prototype for
the ILC positron capture accelerator, high power tests of cavity coupler components, beam tests of prototype S-band
linac beam position monitors and measurements of the magnetic center stability of an ILC prototype superconducting
quadrupole magnet built by the CIEMAT group in Spain.
Commissioning of the ALTO 50 MeV Electron Linac
The ALTO 50 MeV electron linac is dedicated
to the production of neutron-rich radioactive
nuclei using the photo-fission process and
the optimisation of the target-ion source system
for SPIRAL 2 and Eurisol projects. A
description of the accelerator consisting in 3
J. Lesrel, J. Arianer, O. Bajeat, J-M. Buhour, H. Bzyl, M. Chabot,
J.-L. Coacolo, T. Corbin, H. Croiset, M. Ducourtieux, S. Essabaa,
H. Lefort, M. Raynaud (IPN) G. Bienvenu, J-N. Cayla, M. Desmons
(LAL)
Mev injector (old test station of LAL), LIL accelerating structure, RF power plant, beam line, control system and
diagnostics will be given. Specified and measured beam parameters will be compared to show the performance for
the photo-fission and eventually other applications.
Construction of the Probe Beam Photo-injector of CTF3
The paper describes the HF and dynamic
beam modelling performed onto the 3 GHz J. Brossard, M. Desmons, B.M. Mercier, C.P. Prevost, R. Roux (LAL)
/ 2,5 cells photo-injector of the future CTF3
(CLIC Test Facility 3) probe beam linac, whose goal is to demonstrate the feasibility of the 30 GHz accelerating sections
in the framework of the CLIC project. The Probe Beam Photo-Injector (PBPI) conception is inspired from the drive
beam photo-injector already designed by LAL (Orsay, France) and actually tested in our laboratory. However, the
design of PBPI has been simplified with respect to the previous because the charge per bunch is 4 times lower and the
number of bunches several orders of magnitude smaller. The internal geometry and the coupling system of the PBPI
have been designed with 2D (SUPERFISH) and 3D (HFSS, ANSYS) codes. A detailed analysis of the dissymmetry
(induced by the coupling system) of the accelerating field component has been performed. Based on the modified
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