DUST IMPACT MASS SPECTROMETER Russian patent published in 2008 - IPC H01J49/40 

FIELD: physics, control.

SUBSTANCE: invention relates to the instrument engineering, automation means, and control systems, namely, to the space research area. The dust impact mass spectrometer contains a hemispheric target with one opening in the middle of its surface, which increases the probability of target impact with a micrometeorite at the same dimensions of the mass spectrometer. The accelerating gap is a limited by a hemispheric target and a hemispheric grid, located concentrically, which provides equal ion trajectory lengths, thus eliminating the measurement result dependence on the impact location and increases the measurement result reliability. The parabolic reflector focuses ions into a parallel beam directed exactly to the hemispheric target opening.

EFFECT: development of mass spectrometer with increased collection ratio.

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