Experimental work with 3He

摘要: The report describes all aspects of experimental work on 3He: methods extracting 3He from a mixture isotopes and the sources which it is obtained, details most efficient apparatus, experiments saturated vapour pressure critical point, equation state gaseous 3He, thermomolecular rates, melting curve α-β transition in solid data density liquid, thermal properties - latent heat, specific heat entropy magnetic phenomena viscosity conductivity, results temperature discontinuities at boundary between solid, velocity sound, compressibility adsorption activated charcoal, construction specifications cryostats, enable us to obtain maintain temperatures 0·3°K by pumping off vapour. possibility discussed obtaining maintaining below adiabatic crystallization 3He. article reviews with brief comments practically published investigation gives tables graphs for known