Paper | Title | Page |
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MOPVA075 | Development of High Sensitive X-Ray Mapping for SC Cavities | 1040 |
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We developed an X-ray mapping system sX-map for superconducting cavities. The sensors are inserted under the stiffener rings between cavity cells, whose locations are close to the iris areas. The whole circuits are im-mersed in liquid He and the multiplexed signals reduces the number of cables to the room temperature region. sX-map has the advantages in its compact size, low cost and simple setup for nondestructive inspections. The sX-map system detected X-rays from field emissions in vertical RF tests of ILC 9-cell cavities at Jefferson Lab (JLab) and KEK. sX-map showed an excellent performance in the meas-urement test at JLab, it exhibited a high sensitivity com-pared with an the fixed diode rings colocated at irises and ion chamber located out side of the vertical test cryostat. | ||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPVA075 | |
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MOPVA076 | Measurement of Thin Film Coating on Superconductors | 1043 |
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Funding: This research is supported by following programs: Grant-in-Aid for Exploratory Research JSPS KAKENHI Grant Number 26600142 and Photon and Quantum Basic Research Coordinated Development Program from the MEXT. Multilayer thin film coating is a promising technology to enhance performance of superconducting cavities. Until recently, principal parameters to achieve the sufficient performance had not been known, such as the thickness of each layer. We proposed a method to deduce a set of the parameters to exhibit a good performances. In order to verify the scheme, we are trying to make some experiments on the subject at Kyoto. The sample preparation and the test setup for the measurement apparatus will be discussed. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPVA076 | |
Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |