Speaker
Description
Muography has been an interesting experimental detection method for thick and dense materials, which typically eluded other forms of radiation detection, such as electron and gamma radiography. The applications of Muography ranges from observations of volcanic and pyramid structures to underground GPS function, border security control, cybersecurity of cosmic transmissions, etc. It can be seen that the use of Muography has been extensively broadened beyond its initial purpose of dense material detections. However, there is a caveat that muons just happen to have the right amount of mass and lifetime on Earth, enabling them to be the appropriate detection particle in thick and dense environments. From a theoretical standpoint, when heavy stars or planets are involved, muon detection mechanism would need to take not only special but general relativity into account; the lifetime dilation would be affected not just by velocity, but the local gravitational field and metric. I then proceeded to consider the possibility of employing tau particles in heavy environments and discuss the criterion for choosing between Muography and “Tauography”. Furthermore, magnetic fields are known to yield noises in Muography pictures, and the effects on Muography in conjunction with gravity will also be discussed.
