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Other Keywords |
Page |
| WECHB02 |
Review of the Diamond Light Source Timing System
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gun, booster, linac, controls |
144 |
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- Y. S. Chernousko, P. Hamadyk, M. T. Heron
Diamond, Oxfordshire
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Funding: Diamond Light Source Ltd
The Diamond Light Source timing system utilises a central event generator with distributed event receivers at the equipment being controlled for all accelerator and beamline subsystems. This provides distributed fiducials with resolution of 8 nsec and stability of 8 psec. It is based on commercial hardware from Micro-Research, Finland. This paper describes the installed timing system and summarizes 5-year operational experience of the system. This includes the hardware and software, the distributing network, and the achieved precision and stability of the system. Developments in the timing system to support additional operational functionality of Diamond, including top-up operation, are also discussed.
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Slides
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| WEPSB001 |
Research of Photon Emission of 120 GeV Channeling Positrons
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positron, radiation, multipole, simulation |
172 |
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- V. A. Maisheev, Y. A. Chesnokov, P. N. Chirkov, I. A. Yazynin
IHEP Protvino, Protvino, Moscow Region
- D. Bolognini, S. Hasan, M. Prest
Università dell'Insubria & INFN Milano Bicocca, Como
- E. Vallazza
INFN-Trieste, Trieste
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The process of radiation of 120-GeV positrons moving in a channeling regime in (011) and (111) plane of a single crystal was considered. At the beginning on the basis of the theory of nonlinear oscillations the trajectory of moving positrons at different initial conditions were derived. Then taking into account the nonlinearity of motion the distribution function over oscillation amplitudes of channeling particles was found. After this the intensity of radiation in thin crystal at different initial conditions was calculated with the help of two various methods. The received results have formed a basis for calculation of positron energy losses in not thin crystals taking into account the processes of dechanneling and multiplicity of generation of photons. Research was executed within the frame of experiment INSURAD ( the beam line 4Н, SPS, CERN). The calculations are in the good consent with preliminary results of this experiment. The received results can be used for creation of powerful sources of radiation and for collimation of positron beams in linear colliders.
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| WEPSB002 |
JINR Activity in FEL
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radiation, undulator, laser, electron |
175 |
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- E. Syresin, G. A. Chelkov, E. V. Ivanov, M. N. Kapishin, E. A. Matyushevskiy, N. A. Morozov, G. Shirkov, G. V. Trubnikov, M. V. Yurkov
JINR, Dubna, Moscow Region
- O. I. Brovko
JINR/VBLHEP, Moscow
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Different methods for diagnostic of ultrashort electron bunches are developed at JINR-DESY collaboration within the framework of the FLASH and XFEL projects. Photon diagnostics developed at JINR-DESY collaboration for ultrashort bunches are based on calorimetric measurements and detection of undulator radiation. The MCP based radiation detectors are effectively used at FLASH for pulse energy measurements. The infrared undulator constructed at JINR and installed at FLASH is used for longitudinal bunch shape measurements and for two-color lasing provided by the FIR and VUV undulators. The JINR also participates in development and construction of Hybrid Pixel Array Detector on the basis of GaAs sensors. The JINR develops a project which is aimed at preparation of conceptual project and simulations of accelerator complex, based on a 0.7 GeV superconducting linear accelerator, for applications in nanoindustry, mainly for extreme ultraviolet lithography using kW-scale Free Electron Laser (FEL) light source.
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| THPSC024 |
Beam Absorber for Turning Accelerator in the Beam Layout of the Experimental Complex
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vacuum, radiation, proton, shielding |
372 |
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