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TUPH20 |
R&Ds of the Beamline and the Related Facilities at the Photon Factory. | |
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| The Photon Factory in the KEK has been operating two SR sources, the PF-ring and the PF-AR for over thirty years. Although even now the 2 rings are used extensively in the wide science fields, the aging problems are quite critical so that we started considering the upgrades of the rings and a new SR facility. Assuming an extremely low-emittance storage ring, we are studying in 5 items, beamline optics design, vibration reduction, heat-load management, beam control and beamline vacuum. In particular, the vibration reduction and heat-load management are quite important issues and we are antecedently conducting necessary R&Ds of the beamline and the related facilities, first mirror heat-load management with test chamber, vibration evaluation with fine encoder, development of the phase separator for stable nitrogen supply and the development of the GRIDCOP direct-cooling mirror system. Here, we will introduce our R&Ds. | ||
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Poster TUPH20 [4.766 MB] | |
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WEKA01 |
Selection of Materials and Processes for Vacuum, Cryogenic and Non-Magnetic Applications in Particle Accelerators | |
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| Stringent requirements are placed on materials of modern accelerators. Their physical and mechanical properties, machinability, weldability or brazeability are key parameters. Adequate strength, ductility, magnetic properties at room as well as low temperatures are important factors for materials of accelerators working at cryogenic temperatures. In addition, components undergoing baking, NEG activation or submitted to the impact of the beam impose specific choices of material grades. Magnetic properties are of paramount importance. In order to minimize the magnetic permeability of the final components, precise specifications in terms of composition and microstructure have to be applied. Today, stainless steels are the dominant materials for accelerator construction. Their metallurgy is extensively treated. It will be shown that a stainless steel does not only consist of a chemical composition or a designation, but is the result of a whole metallurgy and metalworking process, in view of obtaining adequate purity, weldability, inclusion cleanliness and fineness of the microstructure. Innovative manufacturing and non-destructive examination technologies will also be covered. | ||
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Slides WEKA01 [311.459 MB] | |
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| WEOPMA05 | Application of Industry Recognised Development Tools and Methodologies, such as Six Sigma to Facilitate the Efficient Delivery of Innovative and Robust Engineering Solutions at Synchrotron Facilities | 184 |
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| Synchrotron facilities play a key part in the delivery of world leading science to facilitate research and development across multiple fields. The enabling technology designed by engineers at these facilities is crucial to their success. The highly academic nature of Synchrotron facilities does not always lead to working in the same way as a commercial engineering company. However, are the engineering requirements at Synchrotrons different to commercial companies? Exploring the parallels between research and commercial companies, can we show that the tools and methodologies employed could benefit engineering development at Synchrotrons? This paper provides a theoretical discussion on the commonality between engineering developments at Synchrotron facilities compared to commercial companies. How methodologies such as Design for Six Sigma and in particular tools such as stakeholder analysis, functional tree analysis, FMEA and DoE could be utilised in the design process at Synchrotrons. It also seeks to demonstrate how implementation could aid the development of innovative, robust and efficient design of engineering solutions to meet the ever-increasing demands of our facilities. | ||
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Slides WEOPMA05 [1.633 MB] | |
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOPMA05 | |
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| WEOPMA06 | A Compact and Calibratable von Hamos X-Ray Spectrometer Based on Two Full-Cylinder HAPG Mosaic Crystals for High-Resolution XES | 189 |
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In high-resolution X-ray Emission Spectroscopy (XES) crystal-based Wavelength-Dispersive Spectrometers (WDS) are being applied for characterization of nano- and microscaled materials. Thereby the so called von Hamos geometry provides high detection efficiency due to sagittal focusing using cylindrically bent crystals. To maximize the detection efficiency a full-cylinder optic can be applied. A novel calibratable von Hamos X-ray spectrometer based on up to two full-cylinder optics was developed at the PTB. To realize the full-cylinder geometry Highly Annealed Pyrolytic Graphite (HAPG) [1] was used. Besides its good bending properties this mosaic crystal shows highly integrated reflectivity while offering low mosaicity ensuring high resolving power [2]. The spectrometer enables chemical speciation of elements in an energy range from 2.4 keV up to 18 keV. The design and commissioning of the spectrometer will be presented together with first results using synchrotron radiation as excitation source. The spectrometer combines high efficiency with high spectral resolution (ten times better than in commercial WDS systems) in a compact arrangement also suitable for laboratory arrangements.
[1] H. Legall et al. (2006). Proc. FEL, BESSY FRAAU04, 798-801 [2] M. Gerlach et al. (2015). J. Appl. Cryst. 48, 2015, 1381-1390 |
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Slides WEOPMA06 [7.630 MB] | |
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOPMA06 | |
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