January 26, 2017

The Experiment

To detect the flux of muons, we will build a cloud chamber. A cloud chamber is a box with supersaturated isopropyl alcohol. When charged particles go through this chamber, they leave a white trace that remains for a small period of time. We will place our cloud chamber on a gondola which will fly on a Balloon, where all BEXUS 24 experiments will take place.

Our experiment will consist of the cloud chamber and its system to run properly, two photographic cameras, and appropriate electrical design. We will be taking pictures of the cloud chamber at a very high rate during the ascending phase of the flight. With these pictures, we will be counting how many muons per second have gone through our cloud chamber. To do so, we will design specific software that counts the traces in our pictures. Luckily enough, muons leave straight bold traces when piercing the cloud chamber, whereas other particles (i.e. electrons, etc.) either leave curved traces or are stopped by other materials.

Once counted the flux of muons at each altitude, we will try to obtain the decay exponential curve of muons, depending on time. This can be done because we know beforehand the velocity of muons. Thereby, we will be able to compare the average lifetime with what theory would predict and see whether it is in agreement with the classical result or with the relativistic one.