Inspection of the Pyramid of the Sun

Following the thought of Luis Alvarez the same type of work was carried out in the Pyramid of the Sun, located near Mexico City. Similar to the Pyramid of Chephren, in the Great Pyramid of Teotihuacan, as it is also known, only one tunnel is known which leads to a chamber at the base of the pyramid. Again, as in the previous one, this chamber is almost in line with the central vertical axis allowing to replicate the same study of Alvarez.

But unlike the Pyramid of Chephren, the Pyramid of the Sun has a more complex geometry and in addition has in its constitution more than one type of different rocks. Both of these aspects make the application of the technique and the interpretation of the results more difficult.

Preparation for this study began in 2003 and beginning in 2011 experimental data was collected for two years using scintillator counters and MWPCs (multi-wire proportional chambers) . In 2013 the preliminary results of this work were published, where they provided the experimental details and the simulations performed during that time. At this moment, the final results are expected to be published in the future.

Publications:

"A muon detector to be installed at the Pyramid of the Sun" (Alfaro et al., 2003)

"Search for cavities in the Teotihuacan Pyramid of the Sun using cosmic muons: preliminary results" (Aguilar et al., 2013)