Paper | Title | Other Keywords | Page | ||
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MOPC12 | A New Magnetic Measurement System for the Future Low Emittance NSLS-II Storage Ring | controls, quadrupole, alignment, emittance | 78 | ||
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Funding: This work was supported by DOE under contract DE-SC0012704 A new magnetic measurement system is under construc-tion at BNL for accurate field harmonic measurements and fiducialization of magnets for a future upgrade of the NSLS- II storage ring. The entire storage ring is envi-sioned to be replaced with a new lattice concept, known as Complex Bend, which superimposes dipole and high-gradient quadrupole fields. The magnetic measurement system will use rotating wire and a PCB rotating coil specifically designed for small-aperture (< 15 mm) high gradient magnets. In this paper we describe in detail the mechanical design and the data acquisition hardware and software. |
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Poster MOPC12 [3.102 MB] | |||||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-MOPC12 | ||||
About • | paper received ※ 15 July 2021 paper accepted ※ 13 October 2021 issue date ※ 03 November 2021 | ||||
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MOPC16 | Validation of APS-U Magnet Support Design Analysis and Prediction | alignment, photon, quadrupole, experiment | 89 | ||
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Funding: Work supported by the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. The Advanced Photon Source Upgrade (APS-U) accelerator magnets have stringent stability requirement*. The project schedule and budget did not allow for full prototyping of the final design. Therefore, the engineers relied on accurate simulation to ensure that the design would meet the specifications. Recently, assembly and free-boundary vibration tests have been done on the first article of the upstream quadrupole Doublet, Longitudinal gradient dipole and Multipole module (DLM-A). The top surface flatness of the girder and the magnet alignment measurement results demonstrate the static positioning requirement of magnet-to-magnet is met. The free-boundary condition modal test results were used to validate the FEA analysis used in the DLM-A design. This validation then confirms the predicted performance of the magnet support system design. Mode shapes and corresponding frequencies from the FEA modal analysis agree with the experimental modal analysis within an acceptable tolerance. The validation approves not only the procedure for accurate modeling of magnet support system that APS-U has developed, but also provides confidence in predicting the accelerator performance. *Advanced Photon Source. (2019). APS Upgrade Project Final Design Report (APSU-2.01-RPT-003). Retrieved from https://www.aps.anl.gov/APS-Upgrade/Documents |
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Poster MOPC16 [0.807 MB] | |||||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-MOPC16 | ||||
About • | paper received ※ 23 July 2021 paper accepted ※ 13 October 2021 issue date ※ 08 November 2021 | ||||
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WEOA02 | Design of Girders on the New Upgrade Lattice at Soleil | alignment, simulation, lattice, operation | 218 | ||
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The current girder set of SOLEIL features 4 girder types weighing from 1.85 t to 3 t, with a respective mass payload varying from 4.1 t to 8 t and lengths from 2.40 m to 4.80 m. The smaller size of magnets used for the present version of the SOLEIL upgrade allows a dramatic size and weight reduction of the magnet-girder assemblies. On the other hand, the number of magnets and girders has increased by a factor of 3, implying longer alignment and installation operations. Another constraint is due to the high compactness of the new lattice causing some limitations and access restrictions in the area between girders and tunnel wall. Several setups involving a number of girders from 116 to 212, various magnet layouts and binding systems have been studied. Dynamic and thermal performances have been evaluated by FEA analysis. This approach gives to accelerator physicists the performance of each solution, and thus a great versatility in the choice of the best setup in terms of dynamic and thermal stability. Alignment constraints, installation schedule reducing "dark time" period and economic considerations have also been taken into account during all the design phase. | |||||
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Slides WEOA02 [4.386 MB] | |||||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-WEOA02 | ||||
About • | paper received ※ 07 August 2021 paper accepted ※ 19 October 2021 issue date ※ 01 November 2021 | ||||
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WEPA10 | Design and Ray-Tracing of the BEATS Beamline of SESAME | photon, simulation, detector, SRF | 246 | ||
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Funding: EU H2020 framework programme for research and innovation. Grant agreement n°822535. The BEAmline for Tomography at SESAME (BEATS) will operate an X-rayμtomography station providing service to scientists from archaeology, cultural heritage, medicine, biology, material science and engineering, geology and environmental sciences*. BEATS will have a length of 45 m with a 3-pole-wiggler source (3 T peak magnetic field at 11 mm gap). Filtered white and monochromatic beam (8 keV to 50 keV, dE/E: 2% to 3% using a double-multilayer-monochromator) modalities will be available. In this work we present the beamline optical design, verified with simulation tools included in OASYS**. The calculated flux through 1 mm2 at the sample position will be as high as 8.5×109 Ph/s/mm2 in 0.1% of the source bandwidth, for a maximum usable beam size of 70×15 mm2. Beam transverse coherence will be limited to below 1 µm by the horizontal size of the X-ray source (~2 mm FWHM). For phase contrast applications requiring enhanced coherence, front end slits can be closed to 0.5 mm horizontally, with a reduction of the available beam size and photon flux. The BEATS beamline will fulfill the needs of the tomography community of SESAME. * H2020 project BEATS, Technical Design Report (July 2020). ** L. Rebuffi and M. Sanchez del Rio, Proc. SPIE 10388: 130080S (2017). |
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Poster WEPA10 [2.480 MB] | |||||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-WEPA10 | ||||
About • | paper received ※ 14 July 2021 paper accepted ※ 27 September 2021 issue date ※ 07 November 2021 | ||||
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WEPB03 | Magnet Measurement Systems for the Advanced Photon Source Upgrade | photon, quadrupole, multipole, alignment | 269 | ||
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Funding: Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility, operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. The Advanced Photon Source-Upgrade (APS-U) project* is under construction and will incorporate a new Multi-Bend Achromat (MBA) lattice. With this design, the new storage ring will require over 1320 new magnets that are being produced under build-to-print contracts to several vendors across the globe. Magnetic measurements are needed to characterize and fiducialize all these magnets to ensure field quality and alignment requirements are met. Seven specialized test benches were designed and built to meet the measurement requirements. These measurement benches may be classified into two groups. The first group is the field quality measurement that includes the strength of the main field and higher harmonics. The multipole magnets are measured using four rotating coil benches, whereas the longitudinal gradient dipoles are mapped using a Hall probe system. The second group is fiducialization that locates the magnetic center of the magnet using a rotating wire and relates it to magnet fiducials and reference surfaces using a laser tracker. This information accompanies each magnet through the module assembly and final installation in the ring to ensure that the magnet is aligned within the allowable tolerance. To date, about 65% of all magnets needed for the storage ring have been measured and fiducialized. Mechanical design of the measurement benches will be presented. *Advanced Photon Source. (2017). APS Upgrade Project Preliminary Design Review Report (APSU-2.01-RPT-002). Retrieved from https://www.aps.anl.gov/APS-Upgrade/Documents. |
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Poster WEPB03 [1.286 MB] | |||||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-WEPB03 | ||||
About • | paper received ※ 16 July 2021 paper accepted ※ 06 October 2021 issue date ※ 28 October 2021 | ||||
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WEPB06 | Mechanical Design of the Booster to Storage Ring Transfer (BTS) Line for APS Upgrade | quadrupole, emittance, vacuum, storage-ring | 279 | ||
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Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357 APS Upgrade selected the horizontal injection scheme which requires exchanging the x and y emittances in the BTS transport line through a series of six skew quadrupoles, as well as matching the beam parameters to the APS Upgrade storage ring through two dipoles and a conventional pulsed septum. This paper presents the layout of this BTS line section in the storage ring tunnel and key components in this section including the mechanical design of dipole magnet, quadrupole and skew quad magnets, the vacuum system, the diagnostics system, and the supports. Finally, detailed mechanical design of this BTS line section in modules and some consideration for fabrication and installation are addressed. |
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Poster WEPB06 [1.133 MB] | |||||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-WEPB06 | ||||
About • | paper received ※ 26 July 2021 paper accepted ※ 19 October 2021 issue date ※ 03 November 2021 | ||||
Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | ||||