How Tungsten Alloy be Used in Calorimeters

The calorimeters are one component of radiation detector, and situated outside the solenoidal magnet that surrounds the Inner Detector. Their purpose is to measure the energy from particles by absorbing it. There are two basic calorimeter systems: an inner electromagnetic calorimeter and an outer hadronic calorimeter.Both are sampling calorimeters; that is, they absorb energy in high-density metal like tungsten alloy.

The electromagnetic (EM) calorimeter absorbs energy from particles that interact electromagnetically, which include charged particles and photons. Tungsten alloy for calorimeters has high precision, both in the amount of energy absorbed and in the precise location of the energy deposited.The barrel EM calorimeter has accordion shaped electrodes and the energy-absorbing materials can be tungsten alloy, with liquid argon as the sampling material.

The hadron calorimeter absorbs energy from particles that pass through the EM calorimeter, but do interact via the strong force; these particles are primarily hadrons. The energy-absorbing material is tungsten alloy, with scintillating tiles that sample the energy deposited.It is better to choose tungsten alloy for calorimeter to guarantee cost-effectiveness. According to the photograph below, tungsten alloy for calorimeter is in the part of 9.

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