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| MOPAB035 | Status of Beam Diagnostics for SIS100 | ion, diagnostics, pick-up, instrumentation | 156 |
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| The FAIR (Facility for Antiproton and Ion Research) accelerator facility presently under construction at GSI will supply a wide range of ion species and beam intensities for physics experiments. Design beam intensities range from 2.5·1013 protons/cycle to be delivered to the pBar-target and separator for production of antiprotons, to beams of e.g. 109 ions/s in the case of slowly extracted beams. The main synchrotron of FAIR is the fast ramped super-conducting SIS100. In the present layout SIS100 will deliver up to 4·1011 U-28+ ions/s with energies of 400-2700 MeV/u, either in single bunches of 30-90 ns, or as slowly extracted beam with extraction times of several seconds, for the radioactive ion beam program of FAIR. This contribution gives an overview of the present layout of beam diagnostic instruments for SIS100 and presents the status of the main development projects regarding e.g. the beam position monitor system, ionization profile monitor and the beam current transformers. | |||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPAB035 | ||
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| MOPAB037 | Analytical and Numerical Performance Analysis of a Cryogenic Current Comparator | damping, cryogenics, dipole, simulation | 160 |
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Funding: This research is funded by the German Bundesministerium für Bildung und Forschung as the project BMBF-05P15RDRBB Ultra-Sensitive Strahlstrommessung für zukünftige Beschleunigeranlagen. Nowadays, cryogenic current comparators (CCCs) are among the most accurate devices for measuring extremely small electric currents. Probably the most interesting property of this equipment, is the excellent position independence of the current passing through it. This feature motivated the use of CCCs for beam instrumentation in particle accelerators. A typical CCC consists of a ferrite core, a pick-up coil, a superconducting quantum interference device, appropriate electronics and superconducting shielding consisting of a meander structure. This configuration offers a strong attenuation for all the magnetic field components, except for the azimuthal one. Thus, high precision measurements of extremely low beam currents are made possible. The damping performance of this device is analysed in this work. A 3D finite element (FE) analysis has been carried out and the computed results were compared to an analytical model*. Furthermore, in order to reduce the computation time, a 2.5D FE model is also proposed and discussed. * K. Grohmann et al., Field attenuation as the underlying principle of cryo-current comparators 2. Ring cavity elements, Cryogenics, vol. 16, no. 10, pp. 601-605, 1976. |
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| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPAB037 | ||
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| TUPIK070 | Main Control System of the Linear Accelerator for the HUST THz-FEL | controls, gun, operation, diagnostics | 1858 |
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| A free-electron laser terahertz radiation source(THz-FEL) with a table-top scale is constructed in Huazhong University of Science & Technology. The whole facility is under joint-debugging currently, and main measured parameters have already matched with design targets. This paper describes the main control system of the Linac-based injector, especially auto-matching and auto-commissioning modules. The former occurs at the begin of daily operation, which contains one key pre-heating and searching the best electric parameters and RF parameters automatically based on last operation status. The later applies in beam commissioning for both Linac and transport line combining with beam diagnostic system, which could save operation time and improve commissioning efficiency. Moreover, real-time monitoring and controlling for water-cooling and vacuum states are inserted in the main control system to protect the accelerator. | |||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK070 | ||
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| TUPVA062 | Construction of the MYRRHA Injector | quadrupole, cavity, diagnostics, linac | 2221 |
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| A collaboration of SCK•CEN, IAP and BEVATECH GmbH is currently constructing the room temperature CH section of the 16.6 MeV CW proton injector for the MYRRHA project. The elaboration of all the construction readiness files for the construction of the accelerating cavities of the first CH section (1.5 to 5.9 MeV) is ongoing. In parallel, the planning, development and fabrication of all further components of this accelerator section is in progress, while the full study for the remaining section is under preparation. This contribution is documenting the most recent status. | |||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPVA062 | ||
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| THPVA077 | Turn-Key Beamlines for the 15 - 30 MeV Medical Cyclotron at VECC | target, vacuum, cyclotron, diagnostics | 4631 |
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| Turn-key beamlines built by Danfysik are to be installed in 2017 at the medical cyclotron facility VECC in Kolkata, India. The beamlines will transport a 500 μA beam of 15 - 30 MeV protons to the target stations where they're used for the production of radioisotopes/radio-pharmaceuticals, and in research and development. A raster scanning system is used to generate an even dose distribution in a square or circular pattern. The beamline components, collimators, diagnostics, and helium cooled HAVAR separation foils protecting the beamlines and cyclotron from possible contamination from the targets are designed for the up to 15 kW beam power. | |||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA077 | ||
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