초록 ▼

A single potential ion source includes a single conical electrode encircled by a cylindrical magnet. At least one filament is placed proximate to the electrode. This arrangement serves to accelerate electrons created by energy from the filament toward a center axis of the conical electrode. The elec

A single potential ion source includes a single conical electrode encircled by a cylindrical magnet. At least one filament is placed proximate to the electrode. This arrangement serves to accelerate electrons created by energy from the filament toward a center axis of the conical electrode. The electrons collide with gas particles to create a focused ion stream. The stream may be directed into a magnetic field in a mass spectrometer tube.

대표청구항 ▼

A single potential ion source for use in a leak detection system having an ion collector coupled to said ion source, the ion source comprising: a base member; a plurality of pins extending through said base member; a conical electrode electrically coupled to at least one of said pins to be placed at

A single potential ion source for use in a leak detection system having an ion collector coupled to said ion source, the ion source comprising: a base member; a plurality of pins extending through said base member; a conical electrode electrically coupled to at least one of said pins to be placed at said single potential, said electrode spaced apart from said base member; a cylindrical magnet encircling an exterior of said conical electrode; and at least a first heating element coupled to at least two of said pins and positioned between said base member and said conical electrode; and said single potential chosen to direct ions away from said first heating element through a center portion of said conical electrode towards said ion collector.