alexsparrow

Second sound is a temperature wave which travels at a speed of ~20m/s in superfluid hellium. 
The second sound detector is an oscillating superleak transducer (OST) containing a flexible, porous membrane for transmitting the movement of superfluid and normalfluid component. 
By determining the second sound wave travel time to the quench location and the second sound speed, triangulation offers an alternative method for quench localization. The technique has become highly complimentary (??!) in the pool of SRF cavity diagnostics for its easy assembly, flexible installation and fast measurement. 
A series of second sound measurement results will be presented for justification of the OSTs used for the Superconducting Proton Linac test cavity (740MHz) at CERN (revise this).

alexsparrow

• Used qtconfig to change font/QT style. Fixes weird looking skype.