ION SPECTRUM MEASUREMENT PROCESS AND TRANSIT-TIME ION SPECTROMETER Russian patent published in 2005 - IPC

FIELD: charged particle spectrometry; measuring charge and mass composition.

SUBSTANCE: charge and mass composition is measured by accelerating ions in accelerating gap formed in vacuum chamber between input end of drift tube and plasma when negative-polarity voltage pulse of length shorter than transit time in drift tube of accelerated ions of plasma being analyzed is applied to drift tube at maximal Z/M_i ratio, where Z is ion charge in plasma; M_i is ion mass. Voltage pulse is supplied from negative-polarity accelerating-voltage pulse source whose high-voltage lead is electrically connected to drift tube and other lead, to vacuum-chamber ground. When in transit, accelerated ions are divided within drift tube into mass, charge, and energy clots and separated clots are recorded by detector.

EFFECT: facilitated procedure.

6 cl, 1 dwg