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Earth, Planets and Space
Fig. 3 | Earth, Planets and Space

Fig. 3

From: The GAs Extraction and Analyses system (GAEA) for immediate extraction and measurements of volatiles in the Hayabusa2 sample container

Fig. 3

Configuration and result for the preliminary experiment on vacuum testing using two types of pipes with two different wall thicknesses. The test pipe-A has a thin wall thickness of 1.65 mm, and the test pipe-B has a thick wall thickness of 14 mm. The inner diameters are 6.2 and 6.0 mm, respectively. a Configuration of the experimental system; b photograph of the experimental system, and c result of the vacuum pressures measured with the gauges < U > (upstream side) and < D > (downstream side), as shown in a, against evacuating time. Two pipes show similar vacuum pressure transitions

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