4 papers
Excimers He2* as Tracers of Quantum Turbulence in 4He in the T=0 Limit
D. E. Zmeev, F. Pakpour, P. M. Walmsley +7
We have studied the interaction of metastable He excimer molecules with quantized vortices in superfluid He in the zero temperature limit. The vortices were generated…
Scintillation and charge extraction from the tracks of energetic electrons in superfluid helium-4
W. Guo, M. Dufault, S. B. Cahn +3
An energetic electron passing through liquid helium causes ionization along its track. The ionized electrons quickly recombine with the resulting positive ions, which leads to the…
Studying the normal-fluid flow in Helium-II using metastable helium molecules
W. Guo, J. D. Wright, S. B. Cahn +2
We demonstrate that metastable helium molecules can be used as tracers to visualize the flow of the normal fluid in superfluid He using a laser-induced-fluorescence technique…
Metastable helium molecules as tracers in superfluid liquid He
W. Guo, J. D. Wright, S. B. Cahn +2
Metastable helium molecules generated in a discharge near a sharp tungsten tip operated in either pulsed mode or continuous field-emission mode in superfluid liquid He are im…