Time-of-flight spectrometer with gridless ion source

Details Time-of-flight spectrometer with gridless ion source Time-of-flight spectrometer with gridless ion source

1989-12-14

1991-11-12

Anderson, Bruce C.

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

250281, 250423R, 250423P, H01J 4940

Patent

active

050650181

ABSTRACT:
A time-of-flight spectrometer includes a gridless ion source for generating ions. The ions are reflected by a reflector and detected in a detector. Different types of ions, indicative of the chemical make-up of a sample, have different times of flight. The ion source includes apertured gridless electrodes to establish a specific potential distribution. The potential distribution can be established utilizing electrodes having apertures of varying diameters. The spectrometer also includes mechanical structure for varying the angle of the detector.

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Frey et al., "A High-Resolution Time-of-Flight Mass Spectrometer Using Laser Resonance Ionization," Journal For Natural Research, 1985, Issue 12, p. 1349.
"Mass Spectrometry," Van Nostrand's Scientific Encyclopedia, pp. 1836-1838, 1982.

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