Abstracts Brochure - CERN

TUPCH003
TUPCH004
TUPCH005
27-Jun-06 16:00 - 18:00 TUPCH — Poster Session
TUPCH — Poster Session
Diagnostics and Timing at the Australian Synchrotron
M.J. Spencer, S. Banks, M.J. Boland, M. Clift, R.T. Dowd, R.
Farnsworth, S. Hunt, G. LeBlanc, M. Mallis, B. Mountford, Y.E.
Tan, A. Walsh, K. Zingre (ASP)
160
The 3GeV Australian Synchrotron will begin
operation in March 2007. This paper outlines
the storage ring diagnostics systems and the
injection timing system. The diagnostics system
includes an optical beamline with streak
camera, an x-ray beamline with pinhole array, a diagnostic straight with fast feedback kicker, stripline, direct current
current transformer, and a four-fingered scraper. Over the 14 sectors there are 98 beam position monitors and 14
movable beam loss monitors. The timing system is based on a static injection system with the storage ring bucket to
be filled targeted by delaying the firing of the electron gun.
Commissioning of the LNLS X-ray BPMs
We present experimental results of the com-
S.R. Marques (LNLS)
missioning of staggered-pair blades x-ray
beam position monitor (XBPM) recently developed
and installed in the UVX electron storage ring at the Brazilian Synchrotron Light Laboratory (LNLS). The
results obtained with a prototype XBPM installed on a diagnostics beamline indicate that the short-term data are in
agreement with the data from a commercially acquired XBPM installed in the same beamline, as well as with the data
of the electron storage ring BPMs. The long-term data has shown discrepancies that probably indicate mechanical
motion of the monitor. In late 2005 we concluded the installation of two other XBPMs in user beam lines. In this
paper we present the commissioning results of this new set of BPMs as well as tests to include it in the slow orbit
correction system of the electron beam.
Beam Profile Monitor for the IFUSP Microtron
The Instituto de Fmsica da Universidade de
T.F. Silva, A.A. Malafronte, M.N. Martins (USP/LAL)
Sco Paulo (IFUSP) is building a two-stage 38
MeV continuous wave racetrack microtron.
In this work we describe the beam profile monitors placed in the injector system of the IFUSP Microtron. This system
consists of a linear accelerator with input energy of 100 keV and output energy of 1.8 MeV. The beam profile monitor
consists of a view-screen (BeO) monitored by a vidcom camera connected to a frame grabber in the control room. The
cameras plus frame grabber were calibrated using a known light source in order to relate pixel counts to luminous
intensity. The total luminous intensity produced by the beam spot was then calibrated to the beam current measured
with a Faraday Cup. In this way we could relate pixel counts to beam current and determine the beam profile.