Chu, Steven Department of Physics, Stanford University, Stanford, California. Nobelist.
Last reviewed:August 2019
- Charged-particle traps
- Neutral-particle traps
- Related Primary Literature
- Additional Reading
A device used to confine charged or neutral particles where their interaction with the wall of a container must be avoided. Electrons or protons accelerated to energies as high as 1 teraelectronvolt (1012 electronvolts) are trapped in magnetic storage rings in high-energy collision studies. Other forms of magnetic bottles are designed to hold dense hot plasmas of hydrogen isotopes for nuclear fusion. At the other end of the energy spectrum, ion and atom traps can store isolated atomic systems at temperatures below 1 millikelvin. Other applications of particle traps include the storage of antimatter such as antiprotons and positrons (antielectrons) for high-energy collision studies or low-energy experiments. See also: Antimatter; Nuclear fusion; Particle accelerator; Plasma (physics); Positron
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