MASS SPECTROSCOPE AND DANGEROUS OBJECT DETECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an ion source using corona discharge which ionizes a sample in high efficiency. SOLUTION: In corona discharge formed at a tip of a needle electrode by impressing high voltage, a direction for pulling out ions by corona discharge is made to be mostly faced to an introductory direction of a sample to a region of this corona discharge so as to improve ion generation efficiency. COPYRIGHT: (C)2009,JPO&INPIT