PLASMA SOURCE, AND ATOMIC CLOCK EMPLOYING PLASMA SOURCE

A small plasma source that enables highly efficient discharge in an ultra-high vacuum state includes a first magnet, a second magnet arranged so that a second magnetic pole faces the first magnetic pole of the first magnet, a third magnet having the second magnetic pole directed in the same directio...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MATSUMAE, Takashi, KURASHIMA, Yuuichi, HIGURASHI, Eiji, TAKAGI, Hideki, MOTOMURA, Taisei, YANAGIMACHI, Shinya
Format:	Patent
Sprache:	eng
Schlagworte:	AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES BASIC ELECTRONIC CIRCUITRY ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY HOROLOGY PHYSICS PLASMA TECHNIQUE PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS TIME-INTERVAL MEASURING
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Beschreibung
Zusammenfassung:	A small plasma source that enables highly efficient discharge in an ultra-high vacuum state includes a first magnet, a second magnet arranged so that a second magnetic pole faces the first magnetic pole of the first magnet, a third magnet having the second magnetic pole directed in the same direction as the first magnetic pole of the first magnet and arranged to surround the first magnet, a fourth magnet having the first magnetic pole different from the second magnetic pole facing the second magnetic pole of the third magnet and arranged to surround the second magnet, a first electrode provided on sides of the first magnetic pole of the first magnet and the second magnetic pole of the third magnet, a second electrode facing the first electrode and provided on sides of the second magnetic pole of the second magnet and the first magnetic pole of the fourth magnet, and a third electrode arranged between the first electrode and the second electrode. A value obtained by dividing a shorter distance between a distance between the first magnet and the second magnet and a distance between the third magnet and the fourth magnet by an average value of thicknesses of the first to fourth magnets is 1 or more and 10 or less.