Absorber

In high energy physics experiments, an absorber is a block of material used to absorb some of the energy of an incident particle. Absorbers can be made of a variety of materials, depending on the purpose; lead, tungsten and liquid hydrogen are common choices.[1] Most absorbers are used as part of a particle detector, particle accelerators use absorbers to reduce the radiation damage on accelerator components.[2]

## Other uses of the same word

* Absorbers are used in ionization cooling, as in the International Muon Ionization Cooling Experiment.
* In solar power, a high degree of efficiency is achieved by using black absorbers which reflect off much less of the incoming energy.
* In sunscreen formulations, ingredients which absorb UVA/UVB rays, such as avobenzone and octyl methoxycinnamate, are known as absorbers. They are contrasted with physical "blockers" of UV radiation such as titanium dioxide and zinc oxide.

## References

1. ↑ "Slide 1". https://www.physics.utoronto.ca/~krieger/talks/WRNPPC04_Talk.pdf. Retrieved 2016-12-23.
2. ↑ "ABSORBERS FOR THE HIGH LUMINOSITY INSERTIONS OF THE LHC". https://accelconf.web.cern.ch/AccelConf/e98/PAPERS/MOP13C.PDF. Retrieved 2016-12-23.

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