公开(公告)号：US09412576B2

公开(公告)日：2016-08-09

申请号：US14558283

申请日：2014-12-02

Applicant: KOREAN BASIC SCIENCE INSTITUTE

Inventor： Seung Yong Kim ,  Mo Yang ,  Hyunsik Kim

IPC: H01J49/14 ,  H01J27/20 ,  H01J49/08

CPC classification number: H01J49/147 ,  H01J27/205 ,  H01J49/08

Abstract: The present invention relates to an ion trap mass spectrometer using a cold electron source, in a production of a portable mass spectrometer, in which a microchannel plate (MCP) module is used, initial electrons are induced by injecting ultraviolet photons emitted from an ultraviolet diode to a front surface of the MCP module, electron beams amplified from the electrons are amplified using a channeltron electron multiplier (CEM), the amplified electron beams are accurately adjusted and injected into an ion trap, thus increasing the amplification rate, and since a quadrupole field is used as an ion filter which returns the initially injected electrons to the inside of an ion trap mass separator, the ionization rate increases.

Abstract translation: 本发明涉及使用冷电子源的离子阱质谱仪，在使用微通道板（MCP）模块的便携式质谱仪的生产中，通过注入从紫外二极管发射的紫外光子引发初始电子 到MCP模块的前表面，使用通道电子倍增器（CEM）从电子放大的电子束被放大，将放大的电子束精确地调节并注入到离子阱中，从而增加放大率，并且由于四极杆 场被用作离子过滤器，其将初始注入的电子返回到离子阱质量分离器的内部，电离速率增加。