Light Sensors

For the teacher

At this point, the teacher should prepare a lesson on semiconductor materials. Activities for the students:

Measurement of the I-V curve of a rectifier diode
Measurement of the current of a photodiode with/without illumination
Using the materials (tonic water, fluorescent gelatin) and measuring the intensity of the light produced with the photodiode. Compare with the non-fluorescent material.

Figure 1: Demonstration of a simplified version of the sensor circuit during an event

Image Credits: Cosmic Rays in Schools Project

Video 1: Operation of a light sensor

Figure 2: Components of the electronic part of the cosmic detector

Image Credits: Cosmic Rays in Schools Project

Video 2: Operation of the silicon photomultiplier (SiPM)

Video 3: Oscilloscope screen during event detection

Video Credits: Cosmic Rays in Schools Project