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Prof. Zhentang Zhao (SINAP)14/09/2015, 09:10An overview of Asian accelerator developments & upcoming construction projects.Go to contribution page
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Prof. Geoffrey Taylor (University of Melbourne)14/09/2015, 09:50Invited OralDevelopments from the World of High Energy Physics of Interest for Beam InstrumentationGo to contribution page
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Pei-Chen Chiu (NSRRC)14/09/2015, 11:00The TPS is a newly constructed 3-GeV third-generation synchrotron light source featuring ultra-high photon brightness with extremely low emittance. After some hardware improvement especially demagnetization of chamber are completed, the commissioning of the beam in the booster ring began on December 12 and attained 3-GeV energy on December 16. The storage ring obtained its first stored beam...Go to contribution page
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Alexander Aleksandrov (ORNL)14/09/2015, 11:40The Spallation Neutron Source, a neutron scattering user facility based on a 1.4MW proton accelerator, has been in operation since 2006. The accelerator beam diagnostics were designed, in large degree, with commissioning unknowns in mind. Today we face new challenges to support stable 1MW beam power operations and accelerator upgrade for even higher power. The beam instrumentation problems...Go to contribution page
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Volker Schlott (PSI)14/09/2015, 12:00SwissFEL is an X-ray free electron laser user facility presently under construction at the Paul Scherrer Institut (PSI) in Villigen, Switzerland. All diagnostics systems have been developed and successfully tested within the baseline SwissFEL parameters, including a low charge, ultra-short pulse operation mode. The monitor designs have been finished, production is ongoing and most of the...Go to contribution page
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Eleonore Roussel (Elettra)14/09/2015, 14:00Relativistic electron bunches circulating in accelerators are subjected to a dynamical instability leading to microstructures at millimeter to centimeter scale. Although this is a well-known fact, direct experimental observations of the structures, or the field that they emit, remained up to now an open problem. Here, we report the direct, shot-by-shot, time-resolved recording of the shapes...Go to contribution page
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Hirokazu Maesaka (RIKEN SPring-8 Center)14/09/2015, 14:40We are planning to install a transverse deflecting cavity (TCAV) in the injector of the X-ray free electron laser (XFEL) facility, SACLA [*], in order to measure longitudinal bunch profiles after a velocity bunching process. This is because the longitudinal bunch profile in the injector is critically important for reproducing the XFEL performance [**]. The TCAV will be installed at the end of...Go to contribution page
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Sergey Kovalev (HZDR)14/09/2015, 15:00Timing jitter and power instabilities are crucial parameters which greatly reduce the applicability of accelerator driven light sources for time-resolved experiments. In this contribution we present a technique that allows achieving few 10 fs time-resolution in experiments operating at cw repetition rates of up to 100 kHz by employing high repetition rate data acquisition. The method employs a...Go to contribution page
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Josef Frisch (SLAC)15/09/2015, 09:00This is an overview of beam arrival time measurement techniques for FELs and other accelerators requiring femtosecond timing. This talk will present the trade-offs between the various techniques used at different facilities.Go to contribution page
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Patrick Krejcik (SLAC)15/09/2015, 10:10Monitoring the pulse by pulse output intensity and profile of an FEL is a critical measurement both for users and for optimising the accelerator drive beam. The diagnostic challenge is to find a technique that is not susceptible to damage at high output power, is noninvasive and can be performed at high repetition rates. Fluorescent screens are invasive, susceptible to damage and limited in...Go to contribution page
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Masaki Tejima (KEK)15/09/2015, 11:00Beam position monitoring is one of most fundamental diagnostic tool in accelerator. To keep good performance of the BPM system, the beam-based alignment method is developed and used for more precise BPM alignment and keeping the performance. The signal from BPM is transfer by coaxial cable, and processed by signal processing circuit. The beam position is calculating from the relative ratio...Go to contribution page
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Philip Burrows (JAI)15/09/2015, 11:40Ultra-low latency beam-based digital feedbacks have been developed by the Feedback On Nanosecond Timescales (FONT) Group and tested at the Accelerator Test Facility (ATF2) at KEK in a programme aimed at beam stabilisation at the nanometre level at the ATF2 final focus. Three prototypes were tested: 1) A feedback system based on high-resolution stripline BPMs was used to stabilise the beam...Go to contribution page
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Takeshi Toyama (J-PARC)15/09/2015, 12:00One of the present obstacles for intensity upgrade of the J-PARC Main Ring is transverse collective instability. We have been developing so called intra-bunch feedback system and in operation during injection flat bottom since last year. But recent beam intensity upgrade push us to improve further the system, namely feedback during acceleration. The revolution frequency changes about 2% and...Go to contribution page
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Kent Wootton (SLAC)15/09/2015, 14:00In recent work, the first quantitative measurements of electron beam vertical emittance using a vertical undulator were presented, with particular emphasis given to ultralow vertical emittances*. Using this apparatus, a geometric vertical emittance of 0.9 +- 0.3 pm rad has been observed. A critical analysis is given of measurement approaches that were attempted, with particular emphasis on...Go to contribution page
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Prof. Mitsuhashi Toshiyuki (KEK)15/09/2015, 14:40Contributed OralIn the LHC, the beam halo due to higher beam energy and intensities will increase the impact on LHC machine protection and on luminosity performance. Measurement of the beam halo distribution is therefore important for understanding and controlling the beam halo. A coronagraph was designed for the observation of the beam halo population. A new optical design of the coronagraph is made for the...Go to contribution page
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Shiro Takano (JASRI/SPring-8)15/09/2015, 15:00Synchrotron radiation in the X-ray range is suitable for non-destructive diagnostics of beam emittance *. Both direct imaging and interferometric techniques can resolve the micrometer-order transverse beam size. The beam emittance is obtained from the measured beam size with the knowledge of the betatron and dispersion functions and the beam energy spread. At the SPring-8 storage ring, we have...Go to contribution page
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Dr Alan Duffy (Swinburne University)15/09/2015, 19:00Public LectureGo to contribution page
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Dr David Webb (ARPANSA)16/09/2015, 09:00TutorialThe impact of radiation upon equipment used on accelerator beam lines is a continuing concern. Materials, cabling and instrumentation will experience aging and degradation and even failure depending on the nature of the radiation and the intensity of the fields. This discussion will review the fundamentals of radiation interactions and look at possible mechanisms for damage. In the case of...Go to contribution page
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Maria Kuhn (CERN)16/09/2015, 10:10During LHC Run 1 significant transverse emittance growth through the LHC cycle was observed. Measurements indicated most of the blow-up to occur during the injection plateau and the ramp. Intra beam scattering was one of the main drivers of emittance growth. However, finding a good wire scanner working point was difficult. Photomultiplier saturation added uncertainty on all measurements. A...Go to contribution page
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Barbara Holzer (CERN)16/09/2015, 11:00Beam loss monitoring (BLM) is a key protection system for machines using beams with damage potential and is an essential beam diagnostic tool for any machine. All BLM systems are based on the observation of secondary particle showers originating from escaping beam particles. With ever higher beam energies and intensities, the loss of even a tiny fraction of the beam can lead to damage or, in...Go to contribution page
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Masahiro Yoshimoto (JAEA/J-PARC)16/09/2015, 11:40In the J-PARC RCS, transverse beam profiles including both the beam core and halo at the extraction beam transport line (3NBT) were measured by using a combination with a wire scanner type beam scraper and beam loss monitors (BLMs). Our final goal of this halo monitor is to measure the intra-bunch beam halo of extracted two bunches from the RCS. Thus the plastic scintillator and...Go to contribution page
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Eduardo Nebot (CERN)16/09/2015, 12:00Contributed OralBeam loss monitoring systems based on optical fibres (oBLM), have been under consideration for future colliders for several years. To distinguish losses between consecutive quadrupoles, a position resolution of less than 1 m is required. A resolution of better than 0.5 m has been achieved in machines with single, nanosecond long pulses. For longer beam pulses, such as the ~150 ns CLIC pulse,...Go to contribution page
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John Fox (SLAC)16/09/2015, 14:00A wideband vertical intra-bunch feedback system is in development at the CERN SPS for use to control potential Ecloud and TMCI instabilities. The work is motivated by planned intensity increases from the LIU and HL-LHC upgrade programs. System technical features include pickups, upgraded kickers and related RF power amplifiers, analog processing with 1 GHz bandwidth, with a with 4 GS/sec...Go to contribution page
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Frank Schmidt-Foehre (DESY)16/09/2015, 14:40The new Embedded Online-Radiation-Monitoring-System, developed for the 17.5 GeV superconducting European XFEL (E-XFEL) that is currently being built between the DESY campus at Hamburg and Schenefeld at Schleswig-Holstein [1,2], has been commissioned in a first system test setup at the E-XFEL Injector. As most of the electronic systems for machine control, diagnostics and safety of the E-XFEL...Go to contribution page
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Tamaki Watanabe (RIKEN Nishina Center)16/09/2015, 15:00A high critical temperature (HTc) superconducting quantum interference device (SQUID) beam current monitor (SQUID monitor) has been built and installed in the beam transport line in the radioactive isotope beam factory (RIBF) at RIKEN in Japan. The SQUID monitor can measure the DC current of heavy-ion beams non-destructively at high resolution. Unlike at other existing facilities, as a low...Go to contribution page
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Adriana Wawrzyniak (Solaris)16/09/2015, 16:20Contributed OralSolaris is a third generation light source recently constructed at the Jagiellonian University in Krakow. The installation of the 600 MeV S-band linear accelerator with thermionic RF gun and transfer line as well as the 1.5 GeV storage ring is now complete. In November 2014 subsystem tests and conditioning of the Solaris linac were started. A 300 MeV electron beam at the end of the linac was...Go to contribution page
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Stephen Gibson (Royal Holloway)16/09/2015, 16:40At the HL-LHC, proton bunches will be rotated by crab-cavities close to the interaction regions to maximize the luminosity. A method to rapidly monitor the transverse position of particles within each 1ns bunch is required. A novel, compact beam diagnostic to measure the bunch rotation is under development, based on electro-optic crystals, which have sufficient time resolution (<50ps) to...Go to contribution page
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Shin-ichiro Meigo (JAEA/J-PARC)16/09/2015, 17:00At the Japanese Spallation Neutron Source (JSNS) using a mercury target, the transverse beam profile of 3 GeV beam having the power of 1 MW is measured by a multi-wire profile monitor (MWPM) placed at the proton beam window (PBW) being the separator between vacuum and helium area at the target station. The profile monitor is crucial because the beam peak current density should be kept as low...Go to contribution page
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16/09/2015, 18:00
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Hermann Schmickler (CERN)17/09/2015, 09:00TutorialFor newcomers, but also with interesting details for oldies, all components of a modern beam position measurement system are reviewed and explained. From specifications, sensor types, analogue and digital electronics over calibration methods the whole field will be covered. At the end some measurement examples will be shown and well as an outlook to upcoming research and developments.Go to contribution page
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Weixing Cheng (BNL)17/09/2015, 10:10Similar to other advanced third generation light sources, NSLS2 storage ring has stringent requirements on beam orbit stability. NSLS2 BPMs can be synchronously triggered to record turn by turn or fast acquisition 10kHz data. Spectrum of these data reveals various beam motion frequencies and it has been characterized at various machine conditions. Compared to the ground motion and utility...Go to contribution page
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Alan Fisher (SLAC)17/09/2015, 11:00Understanding and controlling beam halo is important for high-intensity hadron accelerators, for high-brightness electron linacs, and for low-emittance light sources. This can only be achieved by developing suitable diagnostics. The main challenge faced by such instrumentation is the high dynamic range needed to observe the halo in the presence of an intense core. In addition, measurements...Go to contribution page
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Steve Smith (SLAC)17/09/2015, 11:30The SLAC National Accelerator Lab hosted the 3rd International Beam Instrumentation Conference (IBIC 2014) at the Portola Hotel in Monterey, California September 14-18, 2014. The four day scientific program consisted of tutorials, invited talks, contributed talks, poster sessions and industrial sponsor exhibits.Go to contribution page
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Francis Perez (ALBA)17/09/2015, 12:00
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Dr Mark Boland (Australian Synchrotron)17/09/2015, 12:10
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