Modelling the mobility of positive ion clusters in normal liquid helium over large pressure ranges
نویسندگان
چکیده
منابع مشابه
Modelling the mobility of positive ion clusters in normal liquid helium over large pressure ranges.
Positively charged helium clusters, also called 'snowballs', have been investigated within normal liquid helium. Thermodynamic state equations for ionic helium clusters in liquid helium have been developed, allowing us to discern the 'hydrodynamic' radius for a wide range of hydrostatic pressures and temperatures. The mobilities derived from the cluster sizes using stokes law match experimental...
متن کاملPositive Ion Mobility in Normal and Superfluid 3He*
The mobility of positive ions has been measured in the normal and superfluid 3 , , phases of He at several pressures. Below 100 m K the normal phase mobthty increases logarithmically with decreasing temperature down to the superfluid transition temperature T~; it shows an anomalous fump near 100 inK. A t low temperatures the drift velocity is nonlinear for electric fields exceeding 30 V/cm. In ...
متن کاملLiquid phase ion mobility spectrometry.
A novel analytical method, called Liquid Phase Ion Mobility Spectrometry (LiPIMS) was demonstrated, where aqueous phase analytes were ionized and introduced into non-aqueous liquids, transported by an external electric field from the point of generation to a collection electrode. Ions were produced from a unique liquid phase ionization process, called Electrodispersion Ionization. Spectra of an...
متن کاملInjection and Mobility of Potassium Ions in Liquid Helium
portant factor in the calculations. There is agreement between the present mean life results 2. P. C.Rogers, FRANTIC, M.I.T. Lab. for Nucl. Sci., Report ‘76 (1962). and the recent beam-foil measurements of Heroux [ 31 and Bromander [ 51 and with the elec tron impact phase-shift method results of Lawrence [4]. 3. L.Heroux, Phys. Rev. 180 (1969) 1. 4. G.M.Laarence and B.D.Sabage; Phys. Rev. 141 (...
متن کاملNormal Pressure Hydrocephalus Presentation with a Large Pseudomeningocele
Background and Importance: This interesting case is about the presence of normal pressure hydrocephalus and a large pseudomeningocele at the same time after 13 months of posterior fossa surgery. Although the occurrence of a pseudomeningocele following posterior fossa surgery is not so rare, such a late large pseudomeningocele development with signs and symptoms of NPH after 13 months of surgery...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Chemistry Chemical Physics
سال: 2015
ISSN: 1463-9076,1463-9084
DOI: 10.1039/c5cp02539g