Floating magnet for a mass spectrometer

The invention is directed to electromagnet assembly (100) suitable for mass spectrometer comprising one yoke (110); and two pole pieces (122; 124); said pole pieces (122; 124) being comprised in a vacuum chamber (160) and being separated from each other by a pole piece gap defining a passage (130) f...

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Bibliographic Details
Main Authors Andrzejewski, Roch, Barrahma, Rachid, Dowsett, David, Wirtz, Tom
Format Patent
LanguageEnglish
Published 09.08.2018
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Summary:The invention is directed to electromagnet assembly (100) suitable for mass spectrometer comprising one yoke (110); and two pole pieces (122; 124); said pole pieces (122; 124) being comprised in a vacuum chamber (160) and being separated from each other by a pole piece gap defining a passage (130) for the charged particles to be deflected; said yoke (110) forming a bridge over said two pole pieces (122; 124) thus defining a magnetic circuit (140). Said electromagnet assembly (100) further comprises one electrical circuit (150) for generating a magnetic flux in said magnetic circuit (140), said electrical circuit (150) being included in said yoke (110). Said electromagnet assembly (100) is remarkable in that said pole pieces (122; 124) are electrically insulated from said electrical circuit (150) and from said yoke (110) by first electrical insulating means (170, 272) and are electrically insulated from said vacuum chamber (160).
Bibliography:Application Number: AU20170217209