Test device and test method for isotope measurement of noble gases in lunar soil

A test device for isotope measurement of noble gases in lunar soil, comprising a carbon dioxide laser ultra-high vacuum sample melting system (29), a first zirconium-aluminum getter (21), a second zirconium-aluminum getter (33), a vacuum dry pump (1), a first molecular pump (5), a second molecular pump (9), a neon gas capture unit, an argon gas capture unit, an argon-krypton-xenon capture unit, a dilution tank (45), a sputtering ion pump (36) and a noble gas mass spectrometer (48) which are connected through pipelines;

• the pipelines comprise a first CF cross (11), a first CF tee (16), a first CF two-way (20), a second CF cross (23), a second CF two-way (30), a second CF tee (32), a third CF cross (34), a fourth CF cross (38) and a fifth CF cross (41),
• wherein
• four ports of the first CF cross (11) are respectively connected with the first molecular pump (5), the second CF tee (32), the first CF tee (16) and the pressure detection unit;
• the remaining two ports of the second CF tee (32) are respectively connected with the second CF two-way (30) and the vacuum dry pump (1);
• the other port of the second CF two-way (30) is connected with the carbon dioxide laser ultra-high vacuum sample melting system (29);
• the remaining two ports of the first CF tee (16) are respectively connected with the neon gas capture unit and the first zirconium-aluminum getter (21) through the first CF two-way (20);
• the four ports of the second CF cross (23) are respectively connected with the first zirconium-aluminum getter (21), the argon gas capture unit, the second zirconium-aluminum getter (33) and the carbon dioxide laser ultra-high vacuum sample melting system (29);
• the four ports of the third CF cross (34) are respectively connected with the second zirconium-aluminum getter (33), the sputtering ion pump (36), the fourth CF cross (38) and the fifth CF cross (41);
• the remaining three ports of the fourth CF cross (38) are respectively connected with a pressure detection unit, the dilution tank (45) and the second molecular pump (9);
• the remaining three ports of the fifth CF cross (41) are respectively connected with the argon-krypton-xenon capture unit, the dilution tank (45) and the noble gas mass spectrometer (48);
• and control valves for controlling opening and closing of the pipelines are installed on a connection path between each pipeline and each component.