How does the Crystal Barrel detector (at ELSA) work?

In summary, the Crystal Barrel detector at ELSA is a large cylindrical array of crystals used to measure the energy and momentum of particles produced in collisions between electrons and protons. It detects particles by measuring the energy deposited in the crystals, which is then converted into an electrical signal. The detector is capable of detecting a wide range of particles and has contributed to scientific research by providing valuable insights into the structure of matter and the fundamental forces of the universe.
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Simple explanation for non-physicist, please!
 
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Particles (including photons) can hit the material and produce high-energetic electrons. Those travel through the material and can give some of their energy to other electrons. Those electrons then emit that energy as light, the light gets detected, and this indicates that some particle was there.
That is a very short description how scintillators work, for more details it would be interesting what exactly you want to know.
 

What is the purpose of the Crystal Barrel detector at ELSA?

The Crystal Barrel detector at ELSA is used to measure the energy and momentum of particles produced in collisions between electrons and protons.

What is the structure of the Crystal Barrel detector?

The Crystal Barrel detector is made up of a large cylindrical array of crystals, arranged in a barrel shape around the collision point. These crystals are made of materials such as lead tungstate or sodium iodide, which can detect the particles produced in the collision.

How does the Crystal Barrel detector detect particles?

When particles pass through the crystals in the detector, they deposit energy, causing the crystals to emit light. This light is then converted into an electrical signal, which is then amplified and recorded by the detector's electronics.

What types of particles can the Crystal Barrel detector detect?

The Crystal Barrel detector is designed to detect a wide range of particles, including photons, electrons, protons, and neutrons. It can also measure the energy and momentum of these particles with high precision.

How does the Crystal Barrel detector contribute to scientific research?

The Crystal Barrel detector is an important tool for studying the structure of matter and the fundamental forces that govern the universe. It has been used in a variety of experiments to further our understanding of the subatomic world and the interactions between particles.

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