The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 31, 2018

Filed:

Dec. 09, 2015
Applicant:

Korea Basic Science Institute, Cheongju-si, Chungcheongbuk-do, KR;

Inventors:

Seung Yong Kim, Daejeon, KR;

Mo Yang, Daejeon, KR;

Hyun Sik Kim, Daejeon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/08 (2006.01); H01J 49/42 (2006.01);
U.S. Cl.
CPC ...
H01J 49/08 (2013.01); H01J 49/422 (2013.01);
Abstract

The present invention relates to an electron bean injection control of a mass spectrometer. A mass spectrometer of the present invention includes: a reference waveform generator configured to generate a reference waveform signal having one type of a square wave and a sine wave, a waveform generator configured to generate a sync signal synchronized with the reference waveform signal; an RF module configured to generate an RF voltage signal from the reference waveform signal and apply the RF voltage signal to an RF electrode in the ion trap, an electron beam generator configured to control an operation of an ultraviolet (UV) diode for generating an electron beam injected into the ion trap according to an input control signal, and a control circuit configured to generate the control signal by using the square wave signal.


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