Decompression Safety of Extravehicular Activities of Cosmonauts: The Ways and Means for Solution

Biomedical problems of EVA support during manned space flight to Mars

“…According to our evaluation [16], the DCS risk for a subject saturated by neon in normobaric environment after decompression to 25 kPa is the same as for a subject saturated by nitrogen of air at sea level after decompression to 40 kPa. Hence, the use of such an atmosphere would make it possible to increase EVA efficiency and to provide DCS prevention in crewmembers in space suits operated at reduced pressure without changing the fire hazard in the cabin.…”

Approaches to decompression safety support of EVA for orbital and interplanetary missions

“…Comparison of physical-chemical differences of various inert gases with nitrogen as they relate to their washin and washout in various tissues and on the dynamics of bubble growth in these tissues testifies that all possible inert component of breathing mixtures, in order of increasing in the volume of tissue bubbles which can be formed from these gases and hence in order of increasing in the DCS risk produced by them, are neon, helium, nitrogen, hydrogen, argon, krypton and xenon [32]. The first place in this sequence belongs to neon because of tissue Ne-bubbles have the lowest growth rate due to the lowest diffusion permeability of this gas through lean and fatty tissues as compared with other gases.…”