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TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)最新文献

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Influence of the Current Distribution in Superconducting Resonators for Wireless Power Transmission on the AC Loss Characteristics 无线输电超导谐振腔电流分布对交流损耗特性的影响
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Pub Date : 2023-01-20 DOI: 10.2221/jcsj.58.27
J. Ogawa, Takuro Shimizu, Atsuya Yamaguchi, Li Yutong, S. Fukui, N. Sekiya
{"title":"Influence of the Current Distribution in Superconducting Resonators for Wireless Power Transmission on the AC Loss Characteristics","authors":"J. Ogawa, Takuro Shimizu, Atsuya Yamaguchi, Li Yutong, S. Fukui, N. Sekiya","doi":"10.2221/jcsj.58.27","DOIUrl":"https://doi.org/10.2221/jcsj.58.27","url":null,"abstract":"","PeriodicalId":143949,"journal":{"name":"TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131389123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A High-efficiency and High-capacity Wireless Power Transmission System Using High-temperature Superconducting Coils 基于高温超导线圈的高效大容量无线电力传输系统
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Pub Date : 2023-01-20 DOI: 10.2221/jcsj.58.11
Ryota Inoue, D. Miyagi, M. Tsuda
{"title":"A High-efficiency and High-capacity Wireless Power Transmission System Using High-temperature Superconducting Coils","authors":"Ryota Inoue, D. Miyagi, M. Tsuda","doi":"10.2221/jcsj.58.11","DOIUrl":"https://doi.org/10.2221/jcsj.58.11","url":null,"abstract":"","PeriodicalId":143949,"journal":{"name":"TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132125584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Physics Experiments using Quantum Beams Pioneered by a Superconducting Transition-Edge Sensor Microcalorimeter Array 利用超导过渡边缘传感器微热计阵列开创的量子光束进行物理实验
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Pub Date : 2021-03-20 DOI: 10.2221/JCSJ.56.65
S. Okada
{"title":"Physics Experiments using Quantum Beams Pioneered by a Superconducting Transition-Edge Sensor Microcalorimeter Array","authors":"S. Okada","doi":"10.2221/JCSJ.56.65","DOIUrl":"https://doi.org/10.2221/JCSJ.56.65","url":null,"abstract":"Synopsis: An array of superconducting transition-edge sensor (TES) microcalorimeters is an attractive detector in research fields where high precision measurements are required. This paper introduces two examples of applying a 240-pixel TES microcalorimeter array (TES detector) to physics experiments using quantum beams. The first application is a series of experiments involving the precise X-ray spectroscopy of exotic atoms using three types of charged-particle beams (i.e., pion, kaon, and muon) at large-scale proton accelerator facilities: Paul Scherrer Institute and J-PARC. The improvement in measurement accuracy by an order of magnitude has brought about great progress in research on exotic atoms. The second application is an atomic-molecule collision experiment using atomic or molecular beams with a cryogenic electrostatic ion storage ring at RIKEN. This is the world's first attempt to apply a TES detector to the detection of \"neutral low-energy atoms and molecules\" instead of \"photons\", aiming to use it as a new high-resolution mass spectrometer.","PeriodicalId":143949,"journal":{"name":"TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128651123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Clinical Application of SQUID Magnetometers for the Spinal Cord and the Peripheral Nerve SQUID磁强计在脊髓及周围神经的临床应用
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Pub Date : 2021-03-20 DOI: 10.2221/JCSJ.56.82
S. Kawabata, Y. Adachi
{"title":"Clinical Application of SQUID Magnetometers for the Spinal Cord and the Peripheral Nerve","authors":"S. Kawabata, Y. Adachi","doi":"10.2221/JCSJ.56.82","DOIUrl":"https://doi.org/10.2221/JCSJ.56.82","url":null,"abstract":"Synopsis: We have applied neuromagnetic field measurement, which has already been used in the medical field for the brain, to the spinal cord and peripheral nerves. By optimizing the equipment and analysis method to the axonal activity, it is now possible to evaluate the neural functions in patients with spinal cord and peripheral nerve diseases. Since there are many patients with spinal cord and peripheral nerve diseases, SQUID technology will make a significant contribution to medicine.","PeriodicalId":143949,"journal":{"name":"TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122095379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantum Internet 量子网络
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Pub Date : 2021-03-20 DOI: 10.2221/JCSJ.56.73
Takashi Yamamoto
{"title":"Quantum Internet","authors":"Takashi Yamamoto","doi":"10.2221/JCSJ.56.73","DOIUrl":"https://doi.org/10.2221/JCSJ.56.73","url":null,"abstract":"","PeriodicalId":143949,"journal":{"name":"TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133063735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Superconductor Processor Architecture 超导体处理器架构
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Pub Date : 2021-03-20 DOI: 10.2221/JCSJ.56.87
Koji Inoue, Masamitsu Tanaka, Koki Ishida
{"title":"Superconductor Processor Architecture","authors":"Koji Inoue, Masamitsu Tanaka, Koki Ishida","doi":"10.2221/JCSJ.56.87","DOIUrl":"https://doi.org/10.2221/JCSJ.56.87","url":null,"abstract":"Synopsis : Moore’s Law, doubling the number of transistors in a chip every two years, has contributed to the evolution of computer system architectures to date. The growth of such hardware implementation makes many optimization opportunities available to software developers. Unfortunately, we cannot expect sustainable transistor shrinking anymore; that is, the end of Moore’s Law will come. Although device and manufacturing technologies continue to progress, some researchers predict that transistor shrinking may stop around 2030 to 2035 due to physical or economic reasons. The goal of this research is to open the door for post-CMOS ultrahigh-performance, low-power computing. Our approach is based on device/circuit/architecture-level co-designs by targeting an emerging device called the single-flux quantum (SFQ). We have successfully demonstrated several outstanding physical designs supporting over 30 GHz. This paper summarizes our research outcomes and discusses the future direction of next-generation computer system architecture.","PeriodicalId":143949,"journal":{"name":"TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116353946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
教育・セミナー委員長に就任して 担任教育研讨会的主席，
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Pub Date : 2021-01-20 DOI: 10.2221/jcsj.56.40
K. Kamiya
{"title":"教育・セミナー委員長に就任して","authors":"K. Kamiya","doi":"10.2221/jcsj.56.40","DOIUrl":"https://doi.org/10.2221/jcsj.56.40","url":null,"abstract":"","PeriodicalId":143949,"journal":{"name":"TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116141061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dielectric Properties of a BaTiO3/REBa2Cu3Oy Multilayered Structure for Low-Loss Capacitors 低损耗电容器用BaTiO3/REBa2Cu3Oy多层结构的介电性能
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Pub Date : 2021-01-20 DOI: 10.2221/JCSJ.56.32
Yoshiyasu Moriguchi, Y. Tsuchiya, Y. Ichino, Y. Yoshida
{"title":"Dielectric Properties of a BaTiO3/REBa2Cu3Oy Multilayered Structure for Low-Loss Capacitors","authors":"Yoshiyasu Moriguchi, Y. Tsuchiya, Y. Ichino, Y. Yoshida","doi":"10.2221/JCSJ.56.32","DOIUrl":"https://doi.org/10.2221/JCSJ.56.32","url":null,"abstract":"Synopsis : A high Q value for resonant circuits is necessary for wireless power transfer. The resistance in the circuit degrades the Q factor; thus, it is important to use elements with a low internal resistance such as superconductors. In this study, we focused on reducing the internal resistance in capacitors by using superconducting electrodes. We fabricated a multilayered structure with epitaxially grown BaTiO 3 films on biaxially oriented YBa 2 Cu 3 O y films and measured the superconducting and dielectric properties. As a result, the multilayered film showed superconducting transition at 86.1 K and a large reduction in ESR at temperatures below 90 K. The temperature dependence of the capacitance density peaks at 265 K and coincides with the structural phase transition of BaTiO 3 . The relative permittivity ε r of the multilayered structure was 1.9-23.3, possibly due to a lower crystalline orientation.","PeriodicalId":143949,"journal":{"name":"TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117044315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Precision Voltage Measurements and the Revised SI Units 精密电压测量和修订的SI单位
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Pub Date : 2021-01-20 DOI: 10.2221/JCSJ.56.18
M. Maruyama
{"title":"Precision Voltage Measurements and the Revised SI Units","authors":"M. Maruyama","doi":"10.2221/JCSJ.56.18","DOIUrl":"https://doi.org/10.2221/JCSJ.56.18","url":null,"abstract":"Synopsis : Since May 20, 2019, new definitions for four of the seven base units of the International System of Units (SI) have been implemented worldwide. In the new definitions, the unit of electric current, ampere, is defined as the number of electrons flowing in unit time, whereas the value of elementary charge is defined as a constant without uncertainty. This paper focuses on the SI units of electrical quantities and reviews the realization of the unit of voltage, volt, based on the Josephson voltage standard system that uses a cryocooler. Furthermore, this paper reviews the influences of the revised SI units on precise electrical measurements.","PeriodicalId":143949,"journal":{"name":"TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115713705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Redefinition of Kelvin and the Present Status and Future Prospects of the International Temperature Scale at Low Temperature 开尔文的重新定义及国际低温温标的现状与展望
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) Pub Date : 2021-01-20 DOI: 10.2221/JCSJ.56.3
T. Shimazaki
{"title":"Redefinition of Kelvin and the Present Status and Future Prospects of the International Temperature Scale at Low Temperature","authors":"T. Shimazaki","doi":"10.2221/JCSJ.56.3","DOIUrl":"https://doi.org/10.2221/JCSJ.56.3","url":null,"abstract":"Synopsis: The temperature is one of the important parameters, both in experiments and analysis, in cryogenic research and development. Recently the definition of the unit of temperature, Kelvin, which is one of the seven basic units in the International System of Units (SI) was redefined along with three other basic SI units. An outline of the redefinition of the Kelvin and its background are presented. Despite the historic redefinition of the Kelvin, practical cryogenic thermometry is not, and will not be, affected at least for a while. Practical cryogenic thermometry is based on the International Temperature Scales (ITSs). The definitions of the ITSs were not changed after the redefinition of the Kelvin. The relationship between the ITSs and the Kelvin definition, and the characteristics of thermodynamic thermometry are also presented.","PeriodicalId":143949,"journal":{"name":"TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121192800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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