Double-focussing mass spectrometer

Details Double-focussing mass spectrometer Double-focussing mass spectrometer

1974-08-06

1976-04-06

Willis, Davis L.

Radiant energy

Ionic separation or analysis

250396ML, B01D 5944

Patent

active

039492214

ABSTRACT:
A double-focussing mass spectrometer having an electrostatic field energy alyser followed by a magnetic field momentum analyser. The entrance diaphragm is essentially annular and thus the entrance aperture of the spectrometer defines a hollow cone with its apex at the ion source. The number of ions received per second by such an aperture is significantly larger than for a conventional spectrometer entrance aperture.

REFERENCES:
patent: 3617741 (1971-11-01), Siegbahn et al.
patent: 3761707 (1973-09-01), Liebl

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