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2 613 347

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IPC

H01J49/32(2006-01-01)

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Application

2015127859, 2015-07-09

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Start date

2015-07-09

(22)

Actual filing date

2015-07-09

(45)

Published

2017-03-16

(72)

Inventor

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Professionalnogo Obrazovaniya Gosudarstvennyj Radiotekhnicheskij Universitet"

METHOD FOR SCANNING MASS SPECTRUM BY LINEAR ION TRAP WITH DIPOLE EXCITATION Russian patent published in 2017 - IPC H01J49/32

Abstract RU 2613347 C2

FIELD: physics.

SUBSTANCE: in the spectrum mass scanning process the amplitude V_e and the frequencyΩ_e of the exciting voltage are changed in time, and the amplitude V and the frequency ω of the high voltage u₁ and u₂ remain constant, wherein the time-change laws of the amplitude V_e(T) and the frequency Ω_e(T) of the exciting voltage are chosen so that the absolute resolution Δm of the linear trap with the dipole excitation in the range of the massesmmin-mmax remains constant.

EFFECT: simplification of the mass scanning system and the high-frequency power supply of the linear quadrupole ion traps with a resonance output of the ions.

2 dwg

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Authors

Dates

2017-03-16—Published

2015-07-09—Filed