Fig. 1. Lunar water ice in-situ detection simulation test platform exterior structure diagram (a) and internal structure diagram (b)

Fig. 2. SEM scan of simulated lunar soil

Fig. 3. System structure diagram vacuum cryogenic sample transfer system (a) and storage system (b)

Fig. 4. Dust-proof and temperature-controlled mass instrument

Fig. 5. Simulation test chamber

Fig. 6. Schematic diagram of the lunar soil in-situ analysis system

Fig. 7. Simulated schematic diagram of in-situ water ice detection. (a) Sample preparation; (b) cryogenic storage; (c) gradient transfer; (d) sample transfer; (e) pour sample delivery; (f) heating analysis and sample discarding

Fig. 8. Sample sublimation loss graph

Fig. 9. Pressure variation of samples with different moisture contents. (a) Low moisture content samples; (b) medium moisture content samples; (c) high moisture content samples

Fig. 10. Relationship between moisture content and pressure