DIFFUSION COEFFICIENT AND SOLUBILITY MEASUREMENTS OF NOBLE GASES IN ICE CRYSTALS

• Main Authors: サトウ コウイチ, ウチダ ツトム, ホンドウ タケオ, マエ シンジ, Kouichi SATOH, Tsutomu UCHIDA, Takeo HONDOH, Shinji MAE
• Format: Report
• Language: English
• Published: Department of Applied Physics, Faculty of Engineering, Hokkaido University : Yokogawa Electric Corporation, Flowmeter Center D & E 1996
• Subjects: Polar meteorology and glaciology; Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3926; http://id.nii.ac.jp/1291/00003926/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3926&item_no=1&attribute_id=18&file_no=1

Diffusion coefficients and solubility of helium, neon and argon gases in ice crystals were determined by measuring the pressure rise in a vessel caused by gas emission from an ice sample supersaturated with the gas. Diffusion coefficients of helium, neon and argon gases in the temperature range between 258.2 K and 268.2 K were on the order of (10)^<-9>m^2s^<-1>, (10)^<-10>m^2s^<-1> and (10)^<-11>m^2s^<-1>, respectively. Solubilities of helium and neon gases in the molar fraction deduced from the total amount of emitted gases were on the order of (10)^<-6> and (10)^<-7>, respectively. As the diffusion coefficients of noble gases were found to depend on their molecular radii, the diffusion coefficients of air molecules, such as nitrogen and oxygen, in ice were estimated.