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MOP112 | The DARHT Data Acquisition, Archival, Analysis, and Instrument Control System (DAAAC), and Network Infrastructure | diagnostics, controls, monitoring, vacuum | 337 |
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Funding: This work supported by the US National Nuclear Security Agency and the US Department of Energy under contract DE-AC52-06NA25396 LA-UR-08-03265 |
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TUP058 | A Kicker Driver Exploiting Drift Step Recovery Diodes for the International Linear Collider | kicker, damping, high-voltage, linear-collider | 536 |
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Funding: U.S. Department of Energy SBIR Program |
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TUP075 | DITANET: A European Initiative in the Development of Beam Instrumentation for Future Particle Accelerators | diagnostics, electron, ion, optics | 567 |
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Without an adequate set of beam instrumentation, it would not be possible to operate any particle accelerator, let aside optimize its performance. In a joint effort between several major research centres, Universities, and partners from industry, DITANET aims for the development of beyond-state-of-the-art diagnostic techniques for future accelerator facilities and for training the next-generation of young scientists in this truly multi-disciplinary field. The wide research program covers the development of beam profile, current, and position measurements, as well as of particle detection techniques and related electronics. This contribution introduces this new Marie Curie Initial Training Network, presents the DITANET partner institutes, and gives an overview of the networks broad research and training program. |
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TUP089 | Electron Beam Timing Jitter and Energy Modulation Measurements at the JLab ERL | electron, FEL, wiggler, cavity | 606 |
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When operating JLab high current ERL a strong reduction of the FEL efficiency was observed when increasing the average electron beam current. Investigating the FEL efficiency drop-off with the electron beam average current we also have measured the electron beam phase noise and the fast energy modulations. The so-called phase noise is essentially a variation of the time arrival of the electron bunches to the wiggler. That could be a very effective way of reducing the FEL efficiency if one takes in to account that the accelerator is routinely operated with the RMS bunch length of about 150 fs. Under a fast energy modulation we mean a modulation which can not be followed by the FEL due to its time constant, defined by the net gain. Such a modulation also could be a possible cause of the efficiency drop-off. Having the measurements made we could rule out the FEL efficiency drop-off due to either the fast energy modulation or the phase modulation. We also have learned a lot about instrumentation and techniques necessary for this kind of beam study. In this contribution we describe the used instrumentation and present results of the measurements. |
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THP042 | High-Gradient SRF R&D for ILC at Jefferson Lab | cavity, SRF, cathode, niobium | 879 |
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Funding: Supported by DOE |
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FR203 | Neutrons and Photons: Probes of Condensed Matter | neutron, synchrotron, linac, synchrotron-radiation | 1124 |
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Synchrotron X-rays and neutrons provide unique microscopic information on the structures and dynamics of condensed matter. These probes are essential tools for biologists, chemists, physicists and materials scientists and have become increasingly important in a remarkably wide range of disciplines, from palaeontology to medicine. The electron storage rings producing synchrotron radiation, and fission reactor or spallation neutron sources, are usually situated at major national or international laboratories. Such central research facilities are exemplified by the two international laboratories in Grenoble, the European Synchrotron Radiation Facility and the Institut Laue-Langevin. After a discussion of the sources used to produce synchrotron radiation and neutron beams, some of the instrumentation and methods used in the investigation of materials will be described, with illustrative examples of recent research. Finally, some major X-ray and neutron sources under construction or at the planning stage will be described, including several where linac technology plays an important role (e.g. the XFEL at DESY and the SNS at ORNL). |
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