Energy Release Channels During Destruction of Impurity-Helium Condensates Academic Article uri icon

abstract

  • Injection of an impurity-helium gas jet passed through a radiofrequency discharge into a volume of superfluid helium leads to the growth of nanoclusters of impurity species which form impurity-helium condensates (IHCs). IHCs are porous materials with very low impurity density (1020 cm-3). High average concentrations of stabilized free radicals can be achieved on the large total surface (100 m2/cm3) of impurity nanoclusters. Warming of the IHCs leads to the destruction of the samples and formation of excited atoms and molecules as a consequence of the recombination of stabilized free radicals. We studied the influence of the nitrogen content in neon-helium and krypton-helium gas mixtures on the thermoluminescence spectra accompanying the destruction of the IHC samples, which were formed by using these gas mixtures. The energy release channels in the IHC samples were revealed from analysis of the thermoluminescence spectra. Springer Science+Business Media, LLC 2012.

published proceedings

  • JOURNAL OF LOW TEMPERATURE PHYSICS

author list (cited authors)

  • Khmelenko, V. V., Pelmenev, A. A., Krushinskaya, I. N., Bykhalo, I. B., Boltnev, R. E., & Lee, D. M.

citation count

  • 10

complete list of authors

  • Khmelenko, VV||Pelmenev, AA||Krushinskaya, IN||Bykhalo, IB||Boltnev, RE||Lee, DM

publication date

  • May 2013