Comparing Cosmic Ray Observations on Airplane and Ground - Raspberry Pi and High Quality Camera

Data measurements were compared between ground and inside an airplane. At an altitude of approximately 10,000 meters, both primary cosmic rays before generating air showers and secondary cosmic rays generated by the interaction of primary cosmic rays with air to form air showers exist. On the other hand, on the ground, both environmental radiation and secondary cosmic rays exist.
The flux of cosmic rays is said to be about 100 times higher at 10,000 meters compared to the ground, but focusing only on muons, which can be measured inside the airplane cabin by Soramame, it is estimated to be about 5 times higher. Further detailed analysis and discussion will continue regarding the results of this measurement.

Device: Raspberry Pi 4 and High Quality Camera (120,000 pixels)
Threshold: 5

Hourly Event Count

Left: Data from the ground
Right: Data including during flight
Bottom Left: Where data is being acquired inside the aircraft (with Raspberry Pi and camera sensor on the right end)

During the flight, measurement counts clearly exceeded those recorded on the ground.