![Page 1: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/1.jpg)
Searching for possible hidden chambers in the
Pyramid of the Sun
ICRC-2007, Mérida
![Page 2: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/2.jpg)
Pyramid of the Sun
![Page 3: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/3.jpg)
Archeological problem
- Three man-made tunnels (1920-50): no internal structure.
- Radón (1997) measurements: no large cavities (?)
- Moon Pyramide (+2002 results): Internal structure and large tumb!
![Page 4: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/4.jpg)
Alvarez experiment
Giza
![Page 5: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/5.jpg)
Muon attenuation method
Sensitivity
Resolution
Measurement vs. simulation
![Page 6: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/6.jpg)
Simulation uncertainties
Aereal level diagram Digitalization
External shape
![Page 7: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/7.jpg)
Internal density
![Page 8: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/8.jpg)
GEANT-4 simulation
Hypotheticalchamber
Smith Tunnel
SBD method
![Page 9: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/9.jpg)
Projections
Smith Tunnel
![Page 10: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/10.jpg)
Components:- Scintillators- Multiwire PC’s- WFD readout- Telemetry
Detector design
![Page 11: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/11.jpg)
Laboratory tests
![Page 12: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/12.jpg)
WFD readout
![Page 13: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/13.jpg)
On-site workElectricity
Entrance limitation
Laboratory
![Page 14: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/14.jpg)
Current status
- GEANT-4 simulations - Electrical power cabling (~1 km) - Detector shack and ventilation system (controlled
humidity and temperature)
- Commissioning of scintillation detectors - Commissioning of individual MWPC’s - Wireless communications - Laboratory tests of ensemble - Experiment
![Page 15: Searching for possible hidden chambers in the Pyramid of the Sun ICRC-2007, Mérida](https://reader035.vdocuments.us/reader035/viewer/2022062423/56649c7b5503460f9492e9c6/html5/thumbnails/15.jpg)
Participants
Physics InstituteResearchersRubén Alfaro M.Ernesto Belmont M.Varlen GrabskiArnulfo Martínez D.Arturo Menchaca R.Matías Moreno Y. Andrés SandovalTechnicianMario RangelStudentsEmilio Arrieta G.Ana Delia BecerrilAzucena CervantesJuan Manuel LópezRoberto Núñez C.Rémy RecheEsteban RodríguezEdgar Vázquez
Anthropology Institute ResearchersLinda Manzanilla N.Luis Barba P.Economic supportDGAPA-UNAMCONACYT