60 T pulsed magnetic field in Bitter magnet made of tungsten and coiled by liquid helium

• Autorzy: Bednarek Stanisław

Identyfikatory

DOI

10.15199/48.2024.03.43

Warianty tytułu

PL

Impulsowe pole magnetyczne 60 T w magnesie Bittera chłodzonym ciekłym helem

• Języki publikacji: EN

Abstrakty

EN

This paper describes the construction of a Bitter magnet intended for generating high pulsed magnetic fields, along with its corresponding power supply system. The magnet was constructed using a tungsten plate stack and was cooled with liquid helium. This design capitalized on the distinctive characteristic of tungsten, which does not transition into a superconducting state at temperatures within a few Kelvin, while simultaneously exhibiting an exceptionally low resistivity on the order of 10-13 m. Therefore, this magnet necessitates a significantly low-power supply and is not constrained by the critical field when it comes to the induction value. The functioning of this system, along with the technique employed for measuring the induction of the resulting magnetic field, is elucidated. This setup successfully achieved pulses with a maximum induction of 60 T and a duration of 2 µs.

PL

W artykule przedstawiono budowę magnesu Bittera przeznaczonego do wytwarzania silnych impulsowych pól magnetycznych i układu jego zasilania. Magnes składał się z pakietu płyt wykonanych z wolframu i był chłodzony ciekłym helem. Wykorzystano unikalną właściwość, polegającą na tym, że wolfram w temperaturze kilku stopni Kelvina nie przechodzi w stan nadprzewodnictwa, ale wykazuje niezwykle niską rezystywność rzędu 10-13 m. Dlatego taki magnes wymaga bardzo małej mocy zasilania i nie ma ograniczenia wartości indukcji przez pole krytyczne. Opisano działanie tego układu i sposób pomiaru indukcji wytworzonego pola magnetycznego. Osiągnięto impulsy o maksymalnej indukcji 60 T i czasie trwania 2 µs.

Słowa kluczowe

EN

Bitter magnet; magnetic field; impulse; resistivity; liquid helium; cooling

PL

magnes Bittera; pole magnetyczne; impuls; rezystywność; ciekły hel; chłodzenie

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2024
• Tom: R. 100, nr 3
• Strony: 244--248
• Opis fizyczny: Bibliogr. 28 poz., rys.

Twórcy

autor

Bednarek Stanisław

• Wydział Fizyki i Informatyki Stosowanej Uniwersytetu Łódzkiego, ul. Pomorska 149/153, 90 236 Łódź

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki i promocja sportu (2025).