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Megacycle Frequency Second Sound


Notarys, Harris Anthony (1964) Megacycle Frequency Second Sound. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/560M-XZ14.


Generation and detection of second sound have been extended to 25 Mc/sec using a resonant cavity technique. Investigations show the attenuation coefficient of second sound is proportional to the square of the frequency up to 1.3 Mc/sec at 1.22°K, 4 Mc/sec at 1.47°K, and 10 Mc/sec at 1.9°K - 2.1°K in agreement with Khalatnikov's theoretical predictions and with previous low frequency measurements.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:(Physics)
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Pellam, John R.
Thesis Committee:
  • Unknown, Unknown
Defense Date:24 April 1964
Record Number:CaltechETD:etd-10282008-145450
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4291
Deposited By: Imported from ETD-db
Deposited On:20 Nov 2008
Last Modified:19 Jan 2024 23:59

Thesis Files

PDF (Notarys_ha_1964.pdf) - Final Version
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