SSRF, Shanghai
SSRF is a 432 m-circumference synchrotron light source with a 150MeV linac, a 3.5GeV full energy booster, and a 3.5GeV storage ring. Principal diagnostics systems have been installed and nearly all have been commissioned during past two years. Data have been obtained on beam position, beam profile, current, and synchrotron radiation diagnostics beamline on the storage ring. Multi bunch transverse feedback system has been applied on the ring. Results for the 150MeV electron beams in the linac, up to 3.5GeV in the booster, and 3.5GeV in the ring will be presented.
DESY Zeuthen, Zeuthen
LAL, Orsay
Research activities at the Photo Injector Test facility at DESY, Zeuthen site, (PITZ) aim to develop and optimize high brightness electron sources for Free Electron Lasers (FELs) like FLASH and the European XFEL. To demonstrate the XFEL operation, an electron bunch train containing 3250 pulses of 1 nC charge at 10 Hz repetition rate is required. The spectrometers and related equipments for studying the longitudinal phase space for such long pulse trains do not yet exist at PITZ. Design and construction of a new high energy dispersive arm (HEDA2) is currently in progress. Besides the requirement to handle long electron bunch trains, the HEDA2 setup is designed to allow high resolution measurements of momentum distribution up to 40 MeV/c, a longitudinal phase space measurement with slice momentum spread down to 1 keV/c and transverse slice emittance measurements at off crest booster phases. The status of the physics design and technical considerations of this dispersive section will be presented in this contribution.
NSRRC, Hsinchu
A new high brilliant 3 GeV storage-ring-based light source - Taiwan Photon Source (TPS) - is planned to be built at the National Synchrotron Radiation Research Center. Various diagnostics will be deployed to satisfy stringent requirements for commissioning, operation, and top-off injection of the TPS. Specifications and an overview of the planned beam instrumentation system for the TPS will be summarized in this report. Efforts in diagnostic devices and subsystems will also be addressed.
CERN, Geneva
During the 2008/2009 shutdown the electronics for the Fast Wire-scanners for the CERN PSB and PS machines will be renovated with new movement and acquisition electronics. A new test bench was produced that allows measuring the movement of wires at speeds up to 20 m/s. This poster will present the calibration system with its related software.
ASCo, Clayton, Victoria
The Australian Synchrotron (AS) timing system is based on a hybrid design: an Event Generator-Event Receiver (EVG-EVR) system creates the injection trigger and various clocks, while a network of digital delay generators adjusts pulse delays and widths. This architecture, combined with a storage ring fill pattern monitor, allows the targeting of injection into specific buckets in the storage ring. Nevertheless, more demanding needs from the machine and the beamlines require an upgrade of the system. Delay generators will be removed and replaced by EVRs. This will allow fixed or variable frequency clocks to be made available to beamlines or to trigger diagnostic hardware, orbit interlock distribution, etc., while reducing jitters to below 100 ps. This paper presents the architecture of the new timing system at AS and emphasizes its benefits for diagnostic tools.
DESY Zeuthen, Zeuthen
DESY, Hamburg
Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin
Uni HH, Hamburg
The Photo Injector Test facility at DESY, Zeuthen site, (PITZ) develops and optimizes high brightness electron sources for Free Electron Lasers (FELs) like FLASH and the European XFEL. A new multi-purpose dispersive section was designed* and installed to characterize the momentum distribution, the longitudinal phase space distribution and the transverse slice emittance of the electron bunch for an electron energy up to 40 MeV. The spectrometer consists of a 180 degree dipole magnet followed by a slit, a quadrupole magnet and two screen stations. One of the screen stations is equipped with an optical read-out for a streak camera to measure the longitudinal phase space distribution. The first measurement results and corresponding beam dynamics simulations of the longitudinal phase space and the momentum distributions will be reported in this contribution. The resolution of the system will be analysed and compared to the design expectations.
*Sergiy Khodyachykh et al.
"Design and Construction of the Multipurpose Dispersive Section at PITZ"
Proceedings of DIPAC 2007, Venice, Mestre, Italy 2007