Characterization of Commercial YBCO Coated Conductors After Neutron Irradiation

Chudý, Michal; Fuger, R.; Eisterer, M.; Weber, H.W.

doi:10.1109/tasc.2011.2108631

Cited by 24 publications

(21 citation statements)

References 11 publications

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“…The measurements were performed in the 6 T and 17 T measurement set-ups at various temperatures from 50 K up to 85 K. Similar studies focused on only critical current enhancement/reduction of 2 G HTS tapes after irradiation are already available [20][21][22]. In figure 6 A significant reduction of n-values over the whole scale of measured angles, fields and temperatures is observed at the highest fast neutron fluence (1x10 22 m -2 ).…”

Section: Tapes In High Magnetic Fields and After Irradiationmentioning

confidence: 89%

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n-Values of commercial YBCO tapes before and after irradiation by fast neutrons

Chudý

Zhong

Eisterer

et al. 2015

Supercond. Sci. Technol.

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The n-value is an important superconducting parameter, which represents the homogeneity of characterized superconductor as well as thermally activated depinning. In addition n-values are important for the evaluation of pinning mechanisms and pinning forces. n-values are crucial input parameters for the numerical simulations of superconducting tapes, coils and other complicated superconducting applications where E-J power law applies. In this publication, complex measurement data of n-values from different 2 nd generation of high temperature superconducting (2G HTS) tapes are presented and analysed. In addition, 2G HTS tapes were step by step irradiated by fast neutron fluences up to 1x10 22 m-2. n-values of the irradiated tapes, containing additional randomly distributed pinning centres, are presented, analysed and compared with unirradiated samples. Special attention is placed on the underlying physics resulting in power-law part of the I-V curve and on the correlation between critical currents and n-values. The measurements are performed within the temperature range of 50 K-85 K and magnetic fields up to 15 T. I Introduction Each I-V curve of a superconducting sample contains a power-law part close to the transition to the dissipative state. This part of the I-V curve can be described by a simple equation: V/V c =(I/I c) n (1)

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Section: Tapes In High Magnetic Fields and After Irradiationmentioning

confidence: 89%

“…It is a proven method of introducing efficient pinning centres into HTS, resulting in critical currents enhancements. Significant critical current enhancement was reported in rather stronger magnetic fields and lower temperatures for several types of tapes [20][21][22].…”

Section: Introductionmentioning

confidence: 98%

n-Values of commercial YBCO tapes before and after irradiation by fast neutrons

Chudý

Zhong

Eisterer

et al. 2015

Supercond. Sci. Technol.

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“…Extensive studies on the influence of neutron irradiation on various gadolinum-based ReBCO (i.e., GdBCO) conductors have been performed by Michael Eisterer (TU-Wien) et al [22][23][24][25]. A series of irradiation tests were performed using the TRIGA MARK II research reactor at the Atominstitut.…”

Section: Neutron Irradiation Studies On Rebco Tapesmentioning

confidence: 99%

Development of Radiation-Tolerant HTS Magnet for Muon Production Solenoid

et al. 2020

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Superconducting magnets are widely used in accelerator science applications. Muon production solenoids are applications that have recently attracted considerable public attention, after the approval of muon-related physics projects such as coherent muon to electron transition or muon-to-electron-conversion experiments. Based on its characteristics, muon production solenoids tend to be subjected to high radiation exposure, which results in a high heat load being applied to the solenoid magnet, thus limiting the superconducting magnet operation, especially for low-temperature superconductors such as niobium titanium alloy. However, the use of high-temperature superconductors may extend the operation capabilities owing to their functionality at higher temperatures. This study reviews the characteristics of high temperature superconductor magnets in high-radiation environments and their potential for application to muon production solenoids.

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“…Альтернативным методом создания искусственных центров пиннинга являются радиационные воздействия. На практике используется облучение нейтронами [31][32][33][34][35][36][37][38], протонами [39], электронами [40], γ-квантами [41] и тяжелыми ионами [42]. Помимо возможности создания дополнительных центров пиннинга при малых концентрациях дефектов, радиационное воздействие привлекательно тем, что, используя ионное облучение с энергиями порядка 1−10 МeV, можно создать концентрации дефектов, существенно изменяющие критический ток и критическую температуру вплоть до полной потери сверхпроводимости.…”

Section: Introductionunclassified

Увеличение Критического Тока Сверхпроводящих Композитов При Имплантации Ионов Железа

Руднев¹,

Подливаев²,

Абин³

et al. 2023

Физика Твердого Тела

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The results of studying the effect of ion irradiation (Fe2+ ions E=5.6 MeV) in the modes of creating radiation defects and implantation on the critical current of high-temperature superconducting (HTS) composites are presented. An analysis was made of both the integral critical current obtained from measurements of the total magnetization of the samples and the local critical current determined from the data of scanning Hall magnetometry. It is shown that at the same ion fluence Ф=2‧1013 cm-2, an increase in the critical current Jc is observed in the ion implantation regime, while in the regime of radiation defects, a slight drop in Jc is observed. This circumstance indicates an enhancement of pinning due to the additional magnetic interaction of Abrikosov vortices with magnetic ions implanted in the HTS layer.

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Characterization of Commercial YBCO Coated Conductors After Neutron Irradiation

Cited by 24 publications

References 11 publications

n-Values of commercial YBCO tapes before and after irradiation by fast neutrons

n-Values of commercial YBCO tapes before and after irradiation by fast neutrons

Development of Radiation-Tolerant HTS Magnet for Muon Production Solenoid

Увеличение Критического Тока Сверхпроводящих Композитов При Имплантации Ионов Железа

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