Title :
Excess electron mobility in liquid Kr-CH4 mixtures
Author :
Borghesani, A.F. ; Folegani, M. ; Frabetti, P.L. ; Piemontese, L.
Author_Institution :
Dept. of Phys., Padua Univ., Italy
Abstract :
The electric field dependence of the mobility of excess electrons has been measured in mixtures of liquid Kr doped with CH4 in several concentrations up to 10%, for T=125 K and up to E=1 MV/m. It appears that CH4 is less effective than rare gas impurities to thermalize electrons at high fields. A concentration-dependent threshold field has been found at which electrons can excite the first vibrational level of the methane molecule.
Keywords :
electron mobility; krypton; liquid mixtures; organic compounds; 125 K; Kr; concentration-dependent threshold field; electric field dependent excess electron mobility; electron thermalization; liquid Kr-CH4 mixtures; methane molecule first vibrational level; rare gas impurities; Electric variables measurement; Electrodes; Electron mobility; Impurities; Ionization chambers; Light scattering; Liquids; Particle scattering; Shape measurement; Signal analysis;
Conference_Titel :
Dielectric Liquids, 2005. ICDL 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-8954-9
DOI :
10.1109/ICDL.2005.1490097
