FIELD: physics.
SUBSTANCE: proposed invention relates to mass spectrometry with orthogonal entry of ions and is widely used in organic and bioorganic chemistry, immunology, biotechnology and medicine when ionising analysed substances using an electron impact method, electrospray etc. The time-of-flight mass spectrometre consists of an electrospray type ion source, an orthogonal ion accelerator (pulser), which includes regions for accumulation and acceleration of ions, field-free drift space, two-stage mirror and detector. The accumulation region of the pulser is made in form of a monopole whose grounded electrode edge is combined with the grounded grid of the acceleration region. There is an ion exit slit in the grounded electrode edge of the monopole.
EFFECT: increased resolution of the time-of-flight mass spectrometre.
2 cl, 3 dwg
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