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Документ A shieldless method for cryogenic cold±vapor supply usage: Theory and practice(Elsevier Inc., 1999) Getmanets, V. F.; Mikhalchenko, R. S.; Yurchenko, P. N.; Zhun, G. G.; Stears, H.We have proven by numerical analysis and experiment that with the use of the SRDB developed shieldless method for cryogenic vapor usage maximum vapor-cold usage is achieved. It is shown that evaporation is decreased in cryovessels and cryostats by using this method equal to 45 times for helium, 5 times for hydrogen and 1.7 times for nitrogen.