On the propagation of third-sound pulses of extremely long pulselength

Autor: K.W. Taconis, R. de Bruyn Ouboter, N.K. Arsala, H. van Beelen, H.J. Verbeek
Rok vydání: 1976
Předmět:
Zdroj: Physica B+C. 84:334-344
ISSN: 0378-4363
DOI: 10.1016/0378-4363(76)90042-5
Popis: The behaviour of third-sound pulses of long pulselength travelling on a helium of 205 m length is reported. These pulses show very little damping as well as dispersion. Different types of reflections at the ends of the film path have been observed, which can be explained from energy and momentum considerations. Also the Doppler shift in the velocity of a pulse travelling on a moving film is demonstrated.
Databáze: OpenAIRE