Listen to the TPC
A sonification approach developed during a short-term scientific stay at CERN between September and December 2009 by Katharina Vogt in co-operation with Robert Höldrich, Stefan Rossegger, Werner Riegler, Matevz Tadel, Martin Rumori and David Pirro.
A charged particle traversing the drift chamber of the ALICE Time Projection Chamber (TPC) leaves a trace of ionization along its path. The electrons produced in the ionization process are accelerated in the external electric field and drift towards the read-out chambers where they are detected with the help of highly charged wires. The electrons reach the wires in the left or right read-out chamber after a certain time. Their time of arrival and their position on the readout chamber provides the information to reconstruct the original particle track.
We use sonification to make the electron impact on the wire audible, which is silent otherwise. Thus we directly listen to the measurement of the TPC - just much slower. Sonification is the auditory display of data - instead of or in addition to visualization tools. In this sonification, you can hear the following:
Listen to the event by clicking on the picture or click on the event name in order to listen to individual tracks.
(Data stems from Monte-Carlo simulations of proton-proton collisions.)