Mass spectrometry device and mass spectrometry method

A mass spectrometry device, comprising:

• a sample stage on which a sample is placed;
• an irradiator irradiating the sample with an energy beam to ionize a plurality of components of the sample while maintaining position information of the plurality of components;
• a micro-channel plate being provided on a flight route of an ionized sample that is the component of the sample ionized by the irradiation of the energy beam and emitting electrons in accordance with the ionized sample;
• a fluorescent body being disposed in a subsequent stage of the micro-channel plate and emitting light in accordance with the electrons emitted from the micro-channel plate;
• an imager being disposed in a subsequent stage of the fluorescent body and having a shutter mechanism configured to be capable of switching an open state in which the light is imaged by allowing the light from the fluorescent body to pass through and a close state in which the light is not imaged by blocking the light from the fluorescent body;
• and
• a controller controlling an opening and closing operation of the shutter mechanism,
• wherein the controller allows the imager to image the light corresponding to each of the plurality of components by performing the opening and closing of the shutter mechanism at a timing for each of the components.