| Paper | Title | Page |
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| TUPOY055 | Study on Electro-polishing of Nb Surface by Periodic Reverse Current Method with Sodium Hydroxide Solution | 2020 |
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| Electropolishing is one of the best methods of Nb surface finishing of the superconducting cavity to obtain high accelerating gradient. Mixed solution of hydrofluoric acid and sulfuric acid is generally used in the electropolishing of Nb. But this solution is very dangerous and because the corrosion of the metal occurs by hydrofluoric acid, all equipment must be made of high density polyethylene or fluorocarbon resin. This causes the expensive cost of electropolishing instrument. In addition, this solution produces sulfur compound on the Nb surface in the electropolishing reaction. This sulfur compound can be field emission sources on the inner surface of cavity and degrades acceleration performance. In this poster, we report noble electropolishing method using periodic reverse current and sodium hydroxide solution. The reaction produces no sulfur content and the equipment is less expensive because the instrument can be made of usual plastic material. As the result of experiments with Nb-coupon samples, we found that the surface roughness is equivalent to the conventional electropolishing method. | ||
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| WEIB01 | Collaboration with Industry in Korea for Medical Accelerators | 2105 |
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| Activities related to medical accelerator development in Korea have been very active recently. Industrial collaboration in this respect has also been highly active. The current main medical accelerator project in Korea is the Korean Heavy Ion Medical Accelerator (KHIMA) project, which is an heavy ion therapy facility mainly with carbon ions. The collaboration covers wide technical areas such as RF structures, magnets, vacuum components, diagnostics, etc. In this talk, such industrial collaboration aspects in Korea will be presented and further collaboration areas will be proposed. | ||
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Slides WEIB01 [5.766 MB] | |
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WEIB02 |
Strategy of Collaboration with Industry for HiLumi LHC | |
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| The HiLumi LHC project aims at a significant increase of the attainable luminosity at LHC. The goal is to improve the statistics of measurements at LHC by an order of magnitude as compared to today's situation. The upgrade project involves the development and installation of several new components and facilities. New cryogenic facilities are needed, a new type of superconducting crab cavities, high field (11T) dipole magnets, new quadrupoles for the interaction regions, beam collimators that utilize advanced materials and also significant civil construction measures are required. The talk reviews potential collaboration with industry in all areas of the HiLumi LHC project. | ||
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Slides WEIB02 [9.180 MB] | |
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WEIB04 |
How to Cope with Requirements or Requests from Accelerator Projects in the Case of Klystrons | |
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| Electron tubes such as klystrons are very important components of accelerators and almost all of these tubes are made by industry. Requirements from accelerator projects as to the klystrons are very much diverse in terms of frequency, RF power, modes of operation (CW or pulse), number of tubes to be made, delivery time, etc. Frequently, in order to cope with the requirements, intensive R&D becomes mandatory. This talk covers how industry has been trying to cope with requirements and requests from accelerator projects in the case of klystrons. | ||
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Slides WEIB04 [2.698 MB] | |
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| WEIB06 | Industry Role for Advanced Accelerator R&D | 2114 |
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| Besides large research institutes which typically focus on fundamental research, industrial companies can also contribute to the development of advanced applications of accelerators as well as to fundamental accelerator technology. The funding of advanced or fundamental R&D, which is usually high-risk but potentially high-reward, is difficult to obtain for any organization, especially smaller industrial companies. As an example of one funding approach, I discuss the role of industrial companies in the field of accelerators and present several examples from my own experience of advanced R&D performed by industry under the United States Department of Energy Small Business Innovation and Small Business Technology Transfer Research (SBIR-STTR) Grant programs. | ||
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Slides WEIB06 [6.226 MB] | |
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