Zobrazeno 1 - 10
of 138
pro vyhledávání: '"John H Durrell"'
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
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:
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
The influence of porosity on the trapped field achievable in 22 YBCO bulk superconductors of different sizes has been investigated and evaluated using Spearman's correlation coefficient in order to explore the significance of these critical features
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdeea4e65d329baaff7591848391e13a
Autor:
Vladimír Plecháček, Kai Yuan Huang, David A. Cardwell, Jasmin V. J. Congreve, Yunhua Shi, John H. Durrell, Anthony R. Dennis, Jan Plecháček, Tomáš Hlásek, Devendra Kumar Namburi, Mark D. Ainslie
Publikováno v:
Journal of the American Ceramic Society. 104:6309-6318
The intrinsic mechanical properties of single‐grain RE‐Ba‐Cu‐O bulk high‐temperature superconductors can be improved by employing a thin‐wall geometry. This is where the samples are melt‐processed with a predefined network of artificial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::450b615cb769a9cd5e43e6a609c6d23b
https://doi.org/10.1111/jace.18017
https://doi.org/10.1111/jace.18017
Autor:
Yuchen Wang, Mark D Ainslie, Difan Zhou, Yibing Zhang, Chuanbing Cai, John H Durrell, David A Cardwell
Publikováno v:
Superconductor Science and Technology. 36:075006
The practical magnetization of arrays of multiple single grain, bulk high temperature superconductors is essential for practical applications, such as trapped flux rotating machines, magnetic resonance imaging and nuclear magnetic resonance. We repor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d5cc0f16b5854f9c7c90d7607b91c87
https://doi.org/10.1088/1361-6668/acd421
https://doi.org/10.1088/1361-6668/acd421
Autor:
John H. Durrell, Mark Ainslie
Publikováno v:
Handbook of Superconductivity ISBN: 9781003139638
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cd641512b681eeabdac3204f0ea8e90
https://doi.org/10.1201/9781003139638-28
https://doi.org/10.1201/9781003139638-28
Autor:
Yunhua Shi, David A. Cardwell, Devendra Kumar Namburi, John H. Durrell, Anthony R. Dennis, Mark D. Ainslie
Publikováno v:
IEEJ Transactions on Power and Energy. 140:148-153
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d685054b29e5ec408ab25a05b629a5e
https://doi.org/10.1541/ieejpes.140.148
https://doi.org/10.1541/ieejpes.140.148
Autor:
John H. Durrell, Wolfgang Lang, Johannes D. Pedarnig, H. Hattmansdorfer, M. Peruzzi, H. Richter
Thin films of the high-temperature superconductor HgBa$_2$CaCu$_2$O$_{6+\delta}$ have been prepared on SrTiO$_3$ substrates by pulsed-laser deposition of precursor films and subsequent annealing in mercury-vapor atmosphere. The microstructural proper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a6be805d91ebdce3ed763e6f1396377
https://www.repository.cam.ac.uk/handle/1810/316692
https://www.repository.cam.ac.uk/handle/1810/316692
Autor:
Kirti Singh, Devendra Kumar Namburi, David A. Cardwell, Suresh Neelakantan, John H. Durrell, Kai Yuan Huang
The success rate of the growth of single grain Y–Ba–Cu–O (YBCO) bulk superconductors, applied typically as trapped field magnets, by melt processing techniques is often rather low. To ensure that the rare earth elements used in these materials
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36fee0c305cc1da69c9524df256eb426