Ceramic‐chromium hall sensors for environments with high temperatures and neutron radiation
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F21%3A00543097" target="_blank" >RIV/61389021:_____/21:00543097 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68378271:_____/21:00543097
Výsledek na webu
<a href="https://www.mdpi.com/1424-8220/21/3/721" target="_blank" >https://www.mdpi.com/1424-8220/21/3/721</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/s21030721" target="_blank" >10.3390/s21030721</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Ceramic‐chromium hall sensors for environments with high temperatures and neutron radiation
Popis výsledku v původním jazyce
Ceramic‐chromium Hall sensors represent a temperature and radiation resistant alternative to Hall sensors based on semiconductors. Demand for these sensors is presently motivated by the ITER and DEMO nuclear fusion projects. The developed ceramic‐chromium Hall sensors were tested up to a temperature of 550 °C and a magnetic field of 14 T. The magnitude of the sensitivity of the tested sensor was 6.2 mV/A/T at 20 °C and 4.6 mV/A/T at 500 °C. The sensitivity was observed to be weakly dependent on a temperature above 240 °C with an average temperature coefficient of 0.014%/°C and independent of the magnetic field with a relative average deviation below the measurement accuracy of 0.086%. A simulation of a neutron‐induced transmutation was performed to assess changes in the composition of the chromium. After 5.2 operational years of the DEMO fusion reactor, the transmuted fraction of the chromium sensitive layer was found to be 0.27% at the most exposed sensor location behind the divertor cassette with a neutron fluence of 6.08 × 10 n/m . The ceramic‐chromium Hall sensors show the potential to be suitable magnetic sensors for environments with high temperatures and strong neutron radiation. 25 2
Název v anglickém jazyce
Ceramic‐chromium hall sensors for environments with high temperatures and neutron radiation
Popis výsledku anglicky
Ceramic‐chromium Hall sensors represent a temperature and radiation resistant alternative to Hall sensors based on semiconductors. Demand for these sensors is presently motivated by the ITER and DEMO nuclear fusion projects. The developed ceramic‐chromium Hall sensors were tested up to a temperature of 550 °C and a magnetic field of 14 T. The magnitude of the sensitivity of the tested sensor was 6.2 mV/A/T at 20 °C and 4.6 mV/A/T at 500 °C. The sensitivity was observed to be weakly dependent on a temperature above 240 °C with an average temperature coefficient of 0.014%/°C and independent of the magnetic field with a relative average deviation below the measurement accuracy of 0.086%. A simulation of a neutron‐induced transmutation was performed to assess changes in the composition of the chromium. After 5.2 operational years of the DEMO fusion reactor, the transmuted fraction of the chromium sensitive layer was found to be 0.27% at the most exposed sensor location behind the divertor cassette with a neutron fluence of 6.08 × 10 n/m . The ceramic‐chromium Hall sensors show the potential to be suitable magnetic sensors for environments with high temperatures and strong neutron radiation. 25 2
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10305 - Fluids and plasma physics (including surface physics)
Návaznosti výsledku
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)
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Sensors
ISSN
1424-8220
e-ISSN
1424-8220
Svazek periodika
21
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
12
Strana od-do
1-12
Kód UT WoS článku
000615496300001
EID výsledku v databázi Scopus
2-s2.0-85099664051