Patent ID: 8981289
Filing Date: 2015-03-17
Classification: H01J,Y10T

Abstract:
1. A device for acquiring an ion source of a mass analyzer using an ultraviolet (UV) diode and a micro-channel plate (MCP), in which applied UV photons induce initial electron emission in a high vacuum state in a vacuum chamber of the mass analyzer, the emitted electrons are amplified into an electron beam, the electron beam converts gaseous sample molecules into ions, and the ions are detected, the device comprising: the UV diode emitting the UV in the vacuum chamber of the mass analyzer; an MCP electron multiplier plate that causes the UV photons from the UV diode to induce the initial electron emission and amplifies the emitted electrons into a large quantity of electron beam at a rear plate thereof; an electron beam focusing lens focusing the electron beam amplified through the MCP electron multiplier plate; an ion trap mass separator ionizing the gaseous sample molecules to produce ions using the electron beam injected by the electron beam focusing lens and trapping the ions in a given space; and an ion detector detecting the ions produced by the ion trap mass separator based on a mass spectrum.