Miniaturized sample scanning mass analyzer

摘要

A mass spectrometer ( 50 ) which includes an ionizing source ( 62 ), a sample holder ( 60 ) arranged in a beam path of the ionizing source ( 62 ), an ion detector ( 54 ) disposed to receive ions extracted from a sample ( 61 ) when held by the sample holder ( 60 ) and irradiated by the ionizing source ( 62 ). The mass spectrometer ( 50 ) also includes an extraction electrode ( 56 ) arranged proximate the sample holder ( 60 ), and a drift tube ( 58 ) arranged between the extraction electrode ( 56 ) and the ion detector ( 54 ). In the mass spectrometer ( 50 ), the extraction electrode ( 56 ) and the drift tube ( 58 ) are movable together relative to the sample holder ( 60 ), which is held at a fixed position.