Abstracts Brochure - CERN

WEPLS114
WEPLS115
WEPLS116
WEPLS117
28-Jun-06 16:00 - 18:00 WEPLS — Poster Session
Progress on the MICE Tracker Solenoid
M.A. Green, S.P. Virostek (LBNL) W. Lau, S.Q. Yang (OXFORDphysics)
366
This report describes the 400 mm warm
bore tracker solenoid for the Muon Ionization
Cooling Experiment (MICE). The 2.923
m long tracker solenoid module includes the
radiation shutter between the end absorber focus coil modules and the tracker as well as the 2.780 meter long magnet
cryostat vacuum vessel. The 2.554 m long tracker solenoid consists of two sections, a three-coil spectrometer magnet
and a two-coil matching section that matches the uniform field 4 T spectrometer solenoid into the MICE cooling
channel. The two tracker magnets are used to provide a uniform magnetic field for the fiber detectors that are used
to measure the muon beam emittance at the two ends of the cooling channel. This paper describes the design for the
tracker magnet coils and the 4.2 K cryogenic coolers that are used to cool the superconducting magnet. Interfaces
between the magnet and the detectors are discussed.
Impedances in Slotted-Pipe Kicker Magnets
Storage ring slotted-pipe kicker magnets
F. Marhauser, O. Dressler, V. Duerr, J. Feikes (BESSY GmbH) based on the DELTA design are foreseen
for the Metrology Light Source (MLS) of the
Physikalisch-Technische Bundesanstalt currently under construction near the BESSY site. Although the slotted pipe
maintains the cross-section of the storage ring vacuum chamber, image currents have to bypass the slots generating
wakefields. Actually modes with substantial impedances have been revealed by simulations and verified by
measurements of a kicker model for the MLS.
Multipole Power Supplies for the Australian Synchrotron
N.J. Meadowcroft, R. Farnsworth (ASP) I. Jensen (Danfysik A/S)
A. Morris (CCLRC/RAL/ISIS)
The Australian Synchrotron storage ring consists
of 28 dipoles, 56 focussing quadrupoles,
28 defocussing quadrupoles, 98 sextupoles,
42 horizontal correctors, 56 vertical correc-
tors and 28 skew quadrupole correctors. Each set of coils on the multipole magnets is supplied by a dedicated power
supply, with the focussing, defocusing, and sextupole magnet coils fed by18-bit unipolar power supplies and the
corrector coils fed by 18-bit bipolar power supplies. This paper will discuss the design, power supply installation
configuration, the testing, commissioning and control interfaces.
The Australian Synchrotron Storage Ring Dipole Power Supply
N.J. Meadowcroft, R. Farnsworth (ASP) P. Bellomo (SLAC) S. Cohen
(LANL) R. Rumrill (Alpha Scientific Electronics)
The Australian Synchrotron storage ring consists
of 28 dipoles, 56 focusing quadrupoles,
28 defocusing quadrupoles, 98 sextupoles, 42
horizontal correctors, 56 vertical correctors
and 28 skew quadrupole correctors. The 28 dipole magnets are series connected and powered by a single 1100V,
850A, 24 pulse power supply with an output stability better than 100ppm. The paper will discuss the design, testing,
commissioning and control interfaces for the storage ring dipole power supply.