Critical currents in REBaCuO superconducting tapes in response to neutron irradiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F19%3AN0000027" target="_blank" >RIV/26722445:_____/19:N0000027 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/19:00518956 RIV/61389021:_____/19:00579852

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1361-6668/ab099c" target="_blank" >https://iopscience.iop.org/article/10.1088/1361-6668/ab099c</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6668/ab099c" target="_blank" >10.1088/1361-6668/ab099c</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Critical currents in REBaCuO superconducting tapes in response to neutron irradiation

Popis výsledku v původním jazyce

Electromagnetic performance of superconducting REBaCuO tapes from several manufacturers was investigated in response to neutron irradiation. The aim was to test the feasibility of using these tapes for wiring high-T c superconducting magnets for fusion reactors. Magnetic induction was employed to determine critical currents. In non-irradiated SuNAM, SuperOx, and SuperPower tapes without additional pinning centers, the normalized pinning force density as a function of the normalized magnetic field, h, exhibited the commonly observed single peak at about h = 0.2 in the whole temperature range 10 K-80 K. In the non-irradiated AP (advanced pinning) SuperPower tapes this dependence developed an extraordinary shape below 70 K. This feature changed with increasing neutron fluence. The effect of neutron irradiation on critical currents was found to be rather complex. In all samples, neutron irradiation by a total fluence of 8.03 × 1022 m-2 caused a critical current degradation at low magnetic fields in the temperature range 10 K-77 K. At high magnetic fields, the effect varied depending on the tape's initial pinning structure, temperature, and neutron fluence. At 77 K, the current decreased and the irreversibility field was reduced in all the samples. At intermediate temperatures the critical current nearly did not change, while at temperatures below 30 K the critical current increased.

Název v anglickém jazyce

Critical currents in REBaCuO superconducting tapes in response to neutron irradiation

Popis výsledku anglicky

Electromagnetic performance of superconducting REBaCuO tapes from several manufacturers was investigated in response to neutron irradiation. The aim was to test the feasibility of using these tapes for wiring high-T c superconducting magnets for fusion reactors. Magnetic induction was employed to determine critical currents. In non-irradiated SuNAM, SuperOx, and SuperPower tapes without additional pinning centers, the normalized pinning force density as a function of the normalized magnetic field, h, exhibited the commonly observed single peak at about h = 0.2 in the whole temperature range 10 K-80 K. In the non-irradiated AP (advanced pinning) SuperPower tapes this dependence developed an extraordinary shape below 70 K. This feature changed with increasing neutron fluence. The effect of neutron irradiation on critical currents was found to be rather complex. In all samples, neutron irradiation by a total fluence of 8.03 × 1022 m-2 caused a critical current degradation at low magnetic fields in the temperature range 10 K-77 K. At high magnetic fields, the effect varied depending on the tape's initial pinning structure, temperature, and neutron fluence. At 77 K, the current decreased and the irreversibility field was reduced in all the samples. At intermediate temperatures the critical current nearly did not change, while at temperatures below 30 K the critical current increased.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Superconductor Science and Technology

ISSN

0953-2048

e-ISSN

1361-6668

Svazek periodika

32

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

1-7

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85065824018