Abstract: The disclosure discloses a method for calibrating a mass discrimination effect of a neon isotope ratio, belonging to a field of isotope measurement. The following steps are provided: providing N kinds of standard gases with different gas semaphores, and respectively testing 20Ne and 22Ne in the N kinds of standard gases (air) by using a mass spectrometer to obtain N data sets; obtaining a functional equation (20Ne/22Ne)air=20Ne/22Ne=A(22Ne)+B from the N data sets by a mathematical fitting method; providing a test sample, and testing 20Nesample and 22Nesample in the sample by a mass spectrometer; making 22Ne equal to 22Nesample, obtaining a functional equation (20Ne/22Ne)air(sample)=A(22Nesample)+B; obtaining a mass discrimination factor according to D=(20Ne/22Ne)air(sample)/(20Ne/22Ne)standard; obtaining a real value of the sample according to (20Ne/22Ne)sample real=(20Nesample/22Nesample)/D.

Abstract: The disclosure provides a test device and a test method for isotope measurement of noble gases in lunar soil. The testing device includes a carbon dioxide laser ultra-high vacuum sample melting system, zirconium-aluminum getters, a vacuum dry pump, a first molecular pump, a second molecular pump, a neon gas capture unit, an argon gas capture unit, an argon krypton-xenon capture unit, a dilution tank, a sputtering ion pump and a noble gas mass spectrometer which are connected through pipelines, and each pipeline and each component are connected through a specific way; in addition, control valves for controlling the opening and closing of the pipelines are installed on the connection path between each pipeline and each component, and the disclosure also provides a matching test method.

Abstract: An optimal detection voltage obtaining method, a reading control method and an apparatus are provided.

Abstract: An optimal detection voltage obtaining method, a reading control method and an apparatus are provided.