Mass spectrometer

A mass spectrometer (100) of reduced size and weight is provided which is capable to conduct highly accurate mass spectroscopy. The mass spectrometer (100) includes an ion source (101) adapted to ionize gas (23) flowing in from outside in order to ionize a measurement sample (4) and a mass spectrosc...

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Bibliographic Details
Main Authors MOROKUMA HIDETOSHI, HASHIMOTO YUICHIRO, HASEGAWA HIDEKI, YAMADA MASUYOSHI, SUGIYAMA MASUYUKI
Format Patent
LanguageEnglish
Published 04.03.2015
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Summary:A mass spectrometer (100) of reduced size and weight is provided which is capable to conduct highly accurate mass spectroscopy. The mass spectrometer (100) includes an ion source (101) adapted to ionize gas (23) flowing in from outside in order to ionize a measurement sample (4) and a mass spectroscopy section (102) for separating the ionized measurement sample (4). The ion source (101) has its interior reduced in pressure by differential pumping from the mass spectroscopy section (102) and ionizes the gas (23) when the interior pressure rises as it inhales the gas (23), and the mass spectroscopy section (102) separates the ionized measurement sample (4) when its interior pressure falls after inhale of the gas (23). The mass spectrometer (100) may further include a restriction device (9) for suppressing a flow rate of the gas (23) the ion source (101) inhales and an open/close device (8), e.g. a pulse valve, for opening and closing a flow of the gas (23) the ion source (101) inhales.
Bibliography:Application Number: CN201110353331