Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
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49/00
Particle spectrometers or separator tubes
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H01J49/26
Mass spectrometers or separator tubes
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H01J49/284
using electrostatic and magnetic sectors with simple focusing, e.g. with parallel fields such as Aston spectrometer
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H01J49/286
with energy analysis, e.g. Castaing filter
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H01J49/288
using crossed electric and magnetic fields perpendicular to the beam, e.g. Wien filter
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