Zobrazeno 1 - 10
of 308
pro vyhledávání: '"D. Ainslie"'
Autor:
Akiyasu Yamamoto, Shinnosuke Tokuta, Akimitsu Ishii, Akinori Yamanaka, Yusuke Shimada, Mark D. Ainslie
Publikováno v:
NPG Asia Materials, Vol 16, Iss 1, Pp 1-12 (2024)
Abstract Iron-based high-temperature (high-T c) superconductors have good potential to serve as materials in next-generation superstrength quasipermanent magnets owing to their distinctive topological and superconducting properties. However, their un
Externí odkaz:
https://doaj.org/article/8118c990d15b4fda91c5932ef7108e6a
Autor:
Marco Calvi, Alexandre Arsenault, Xiaoyang Liang, Thomas Schmidt, Anthony R. Dennis, John H. Durrell, Carlos Gafa, Andrew Sammut, Nicholas Sammut, Mark D. Ainslie, Ryota Kinjo, Kai Zhang, Sebastian Hellmann
Publikováno v:
Physical Review Accelerators and Beams, Vol 27, Iss 10, p 100702 (2024)
The magnetic field optimization of RE-Ba-Cu-O (REBCO, RE=rare earth) bulk superconducting undulators is a fundamental step toward their implementation in an accelerator driven photon source, like a synchrotron or a free electron laser. In this articl
Externí odkaz:
https://doaj.org/article/ce2955466d604143827f1631ec3f13c8
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 1124-1156 (2023)
Superconducting rotating machines are more efficient, smaller and lighter than conventional ones. Thus, they can reduce energy consumption and can be an enabling technology in applications that require light-weight machines. Using high temperature su
Externí odkaz:
https://doaj.org/article/b2d859e7e04f4d8c9c77b36f5942add4
Autor:
Marco Calvi, Sebastian Hellmann, Eduard Prat, Thomas Schmidt, Kai Zhang, Anthony R. Dennis, John H. Durrell, Mark D. Ainslie
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p L032020 (2023)
We report on the performance of a new type of helical undulator based on bulk single-grain GdBa_{2}Cu_{3}O_{7−δ} high-temperature superconductors. The 104-mm-long prototype with a period length of 16 mm and a magnetic aperture of 4 mm achieves an
Externí odkaz:
https://doaj.org/article/af253a5b7f2b41509e82281832abb873
Autor:
Shuangrong You, Swarn S. Kalsi, Mark D. Ainslie, Rodney A. Badcock, Nicholas J. Long, Zhenan Jiang
Publikováno v:
IEEE Access, Vol 9, Pp 130968-130980 (2021)
Superconducting machine designs have historically focused on an isolated, cryogenic rotor and conventional (copper) stator due to unacceptable levels of AC loss in a superconducting stator. Thus, AC loss reduction in the armature windings is one of t
Externí odkaz:
https://doaj.org/article/129e6bc2c58141c9a2a5bbff041ead12
Publikováno v:
IEEE Access, Vol 8, Pp 195425-195435 (2020)
An electromagnet guideway unit (EMGU) that can form an electromagnet guideway (EMG) with only a small gap, or even no gap, between multiple EMGUs was designed. The magnetic characteristics of such EMGU(s), including the homogeneity of the magnetic fi
Externí odkaz:
https://doaj.org/article/d20c6f4dba68423fbd368d4d9fc2eb18
Autor:
R. W. Taylor, A. E. Pantoja, T. Hlasek, J. Plechacek, H. W. Weijers, M. D. Ainslie, C. W. Bumby
Publikováno v:
Taylor, R W, Pantoja, A E, Hlásek, T, Plecháček, J, Weijers, H W, Ainslie, M & Bumby, C W 2023, ' Transport Current Measurement of I c ( T, B, θ ) and n ( T, B, θ ) for a Bulk REBCO Superconductor ', IEEE Transactions on Applied Superconductivity, vol. 33, no. 5, 6800106 . https://doi.org/10.1109/TASC.2023.3239323
Bulk rare-earth barium cuprate (REBCO) high-temperature superconductors are attractive for many electromagnetic applications due to their ability to support large current densities and trap large magnetic fields. At present, magnetisation techniques
Autor:
Ryota Kinjo, Marco Calvi, Kai Zhang, Sebastian Hellmann, Xiaoyang Liang, Thomas Schmidt, Mark D. Ainslie, Anthony R. Dennis, John H. Durrell
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 4, p 043502 (2022)
In order to optimize the design of undulators using high-temperature superconductor (HTS) bulks we have developed a method to estimate the critical current density (J_{c}) of each bulk from the overall measured magnetic field of an undulator. The ver
Externí odkaz:
https://doaj.org/article/2596da3855d1406c8e63ce88d39919c1
Autor:
J.J. Wyatt, R.A. Pearson, J. Frew, C. Walker, N. Richmond, M. Wilkinson, K. Wilkes, S. Driver, S. West, P. Karen, R.L. Brooks-Pearson, D. Ainslie, E. Wilkins, H.M. McCallum
Publikováno v:
Radiography. 29:347-354
Publikováno v:
IEEE Transactions on Applied Superconductivity. 31:1-7
A high- T c superconducting (HTS) dynamo enables the injection of large DC currents into a superconducting circuit, without the requirement for current leads. In this work, we attempt to explain the frequency dependence of such dynamos/flux pumps rep