公开(公告)号：US20140367568A1

公开(公告)日：2014-12-18

申请号：US14358809

申请日：2011-11-28

Applicant: KOREA BASIC SCIENCE INSTITUTE

Inventor： Hyun Sik Kim ,  Seung Young Kim ,  Mo Yang

IPC: H01J49/00 ,  H01J49/42

CPC classification number: H01J49/08 ,  H01J27/028 ,  H01J43/04 ,  H01J43/246 ,  H01J49/0045 ,  H01J49/0054 ,  H01J49/10 ,  H01J49/147 ,  H01J49/38 ,  H01J49/426

Abstract: The present invention relates to an anion generating and electron capture dissociation apparatus using cold electrons, which uses an MCP electron multiplier plate for generating an electron beam for ionization within an ion trap of a Fourier transform ion cyclotron resonance mass spectroscope, injects ultraviolet photons emitted from an ultraviolet diode across the entire surface of the MCP electron multiplier plate, uses an electron focusing lens to focus and inject an electron beam into the trap, and generates an ECD reaction by coupling electrons to molecules having multiple positive charges using a low energy electron beam emitting apparatus for the negative ionization of neutral molecules in the ion trap. The anion generating and electron capturing and analyzing apparatus of the present invention, which uses cold electrons and is configured of a cold electron generating module which generates a large number of cold electrons from ultraviolet photons emitted into a mass spectroscope in a high vacuum state, comprises a plurality of ultraviolet diodes emitting ultraviolet photons in the mass spectroscope, an MCP electron multiplier plate inducing and amplifying an initial electron emission of ultraviolet photons from the ultraviolet diodes, and generating a high capacity electron beam from a back plate, an electron focusing lens for focusing the electron beam amplified through the MCP electron multiplier plate, and a grid for adjusting the energy and current of electrons.

Abstract translation: 本发明涉及一种使用冷电子的阴离子产生和电子捕获离解装置，其使用MCP电子倍增器板在傅里叶变换离子回旋共振质谱仪的离子阱内产生用于离子化的电子束，注入从 跨越MCP电子倍增器板的整个表面的紫外线二极管使用电子聚焦透镜将电子束聚焦并注入陷阱，并通过使用低能电子束将电子耦合到具有多个正电荷的分子来产生ECD反应 用于离子阱中的中性分子的负电离的发射装置。 本发明的阴离子产生和电子捕获和分析装置，其使用冷电子并且由在高真空状态下发射到质谱仪中的紫外光子产生大量冷电子的冷电子发生模块构成，包括 在质谱仪中发射紫外光子的多个紫外线二极管，MCP电子倍增器板，其从紫外二极管感应并放大紫外光子的初始电子发射，并从背板产生高容量电子束;电子聚焦透镜， 聚焦通过MCP电子倍增器板放大的电子束，以及用于调节电子的能量和电流的栅格。