FIELD: physics.
SUBSTANCE: two metal high-precision forms are fabricated with their outer surfaces mating inner surfaces of angle and hyperbolic electrodes of monopole analyser. Metal layer is applied on forms, for example by electric deposition, its thickness making at least 0.1 mm to provide for required strength of analyser. Then form is withdrawn , protective coat is applied on electrode for example, by electric deposition, its thickness making at least 5-10 mcm and electrodes are interconnected by insulators made in the form of rectangular parallelepipeds.
EFFECT: higher resolution and sensitivity, mechanical strength and vibration resistance, lower costs.
2 dwg
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