What is a bubble chamber?
Bubble Chamber is a device used in physics to detect charged particles. He was invented by Donald Glaser in 1952 and was subsequently awarded the Nobel Prize for his invention. Although the once predominant method of particle detection, the bubble chamber is often not used, largely due to some disadvantages that will be manifested in solving extremely high -energy particles.
The principle of the bubble chamber and indeed most particle detectors is quite simple. This can be considered an analogous monitoring of the sky for the trails that remained aircraft. Even if the jet lanes so quickly that you will not notice it, you will see its path for some time, allowing you to reconstruct the way it has set out. The bubble chamber works along a similar principle, with the particles leaving the trail of bubbles that can be photographed. The liquid is made supervised by maintaining it under pressure and a slight release at the moment the particles are introduced. As the charged particles go through the chamber, they cause to make a kaPalina cooks as they pass, and creates a trail of bubbles. The particles themselves last only a few nanoseconds to pass through the chamber, but the bubbles last millions longer than the expansion, usually lasts about 10 ms. At that time, photos can be taken from different angles and create a three -dimensional representation of particle paths.
bubbles are then eliminated by the pressure of the chamber and the procedure is repeated with the next dose of particles. Each set of photos is taken in what we could consider in a short time, which requires only a few seconds, but according to scientific standards it is actually quite long. Modern detectors are able to perform the whole procedure in milliseconds, all the hundreds or thousands of particles to be documented in a few seconds. Modern detectors also digitally capture images, making it easier to analyze and storage.
The result is that a bubble chamber rarely used in a modern detailEcCI particles. Another problem is that because the bubble chambers are relatively small, they are also unable to properly document high -energy particles, which further reduces their usefulness in modern experiments. Finally, the point in which the liquid is overheated
Despite their relative obsolescence, images from bubble chambers are still very useful for teaching purposes. Because they are photos of physical trails, they are generally much easier for people than more complicated descriptions of interactions or other abstract data. Students can look at the image captured from the bubble trail and see exactly the interactions of different particles and how the particles decompose during their time in the chamber. For these reasons, although they are widely used in top research, bubble chambers continue to see some of the use of university laboratories and photographs taken historically are often seen in textbooks.