Abstracts Brochure - CERN

THPCH112
THPCH113
THPCH115
29-Jun-06 16:00 - 18:00 THPCH — Poster Session
synchronisation of the ten cavities in the ring. It also describes how more of the controls to the oscillator can be
encompassed by digital means.
High-level Software for Diamond Commissioning and Operation
R. Bartolini, C. Christou, I.P.S. Martin, J.H. Rowland, B. Singh (Diamond)
420
The Diamond accelerator complex is controlled
with EPICS. While generic applications
are provided by the EPICS toolkit, accelerator
physics application for the commis-
sioning and operation of the Diamond booster, storage ring and transfer line are mainly developed with MATLAB.
The MATLAB Middle Layer tools developed at ALS and SPEAR3 have been extensively used and extended with many
new applications. Experience using these tools during the commissioning of the Diamond booster, transfer lines and
storage ring are reported.
The Diamond Light Source Control System
M.T. Heron, M.G. Abbott, P.H. Amos, K.A.R. Baker, Y.S. Chernousko,
T.M. Cobb, C.A. Colborne, P.N. Denison, I.J. Gillingham, A. Gonias,
P. Hamadyk, S.C. Lay, M.A. Leech, P.J. Leicester, M. McClory, U.K.
Pedersen, N.P. Rees, A.J. Rose, J.H. Rowland, E.L. Shepherd, S.J.
Singleton, I. Uzun, K. Vijayan (Diamond) S. Hunt (PSI) P.H. Owens
(CCLRC/DL)
Diamond is a new 3rd generation synchrotron
light source currently being commissioned
in the UK. The control system for Diamond
will be a site-wide monitoring and
control system for the accelerators, beamlines
and conventional facilities. This paper
presents the design and implementation of
the Diamond control system, which is based
on the EPICS control system toolkit. It will present the detailed choice of hardware and software, the solutions
realised for interfacing and control of the major technical systems of Diamond, together with progress on installation
and commissioning.
Timing System Upgrade for Top-up Injection both to PF and KEKB
KEK Linac provides electrons and positrons
K. Furukawa, E. Kadokura, M. Satoh, T. Suwada (KEK)
to Photon Factory (PF) and B-Factory
(KEKB). Because of the nature of those factory
machines both quantity and quality of the beams are required. In order to improve the injections, quasi topup
injections of electrons to PF and KEKB rings have been planned and a new beam transport line was built. Fast
beam switching mechanisms are being developed and installed. The timing and control system is also reinforced to
realize fast (50Hz) switching of rf timing pulses, low-level rf, beam instrumentation parameters, and beam feedback
parameters. The present timing system provides precise (jitters down to 5ps) timing pulses to 150 devices. Many of
the signals will be upgraded to enable the fast switching scheme with an event system. At the same time a doublefold
synchronization between asynchronous Linac and PF rf signals was developed to achieve precise injection timing
mainly because both rings have independent circumference correction systems.