Steady state magnetic sensors for ITER and beyond: Development and final design
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00495626" target="_blank" >RIV/61389021:_____/18:00495626 - isvavai.cz</a>
Result on the web
<a href="https://aip.scitation.org/doi/pdf/10.1063/1.5038871?class=pdf" target="_blank" >https://aip.scitation.org/doi/pdf/10.1063/1.5038871?class=pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.5038871" target="_blank" >10.1063/1.5038871</a>
Alternative languages
Result language
angličtina
Original language name
Steady state magnetic sensors for ITER and beyond: Development and final design
Original language description
The measurements of the magnetic field in tokamaks such as ITER and DEMO will be challenging due to the long pulse duration, high neutron flux, and elevated temperatures. The long duration of the plasma pulse makes standard techniques, such as inductive coils, prone to errors. At the same time, the hostile environment, with repairs possible only on blanket exchange, if at all, requires a robust magnetic sensor. This contribution presents the final design of novel, steady-state, magnetic sensors for ITER. A poloidal array of 60 sensors mounted on the vacuum vessel outer shell contributes to the measurement of the plasma current, plasma-wall clearance, low-frequency MHD modes and will allow for crosscheck with the outer-vessel inductive coils. Each sensor hosts a pair of bismuth Hall probes, themselves an outcome of extensive R&D, including neutron irradiations (to 1023 n/m2), temperature cycling tests (73-473 K) and tests at high magnetic field (to 12 T). A significant effort has been devoted to optimize the sensor housing by design and prototyping. The production version features an indium-filled cell for in situ recalibration of the onboard thermocouple, vital for the interpretation of the Hall sensor measurement.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Review of Scientific Instruments
ISSN
0034-6748
e-ISSN
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Volume of the periodical
89
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
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UT code for WoS article
000449144500230
EID of the result in the Scopus database
2-s2.0-85054148077