traveling-wave linear accelerator
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major reference
- In particle accelerator: Linear electron accelerators
The force that acts on electrons in a traveling-wave accelerator is provided by an electromagnetic field with a frequency near 3,000 MHz (1 MHz = 1,000,000 Hertz, or 1,000,000 cycles per second)—a microwave. The acceleration chamber is an evacuated cylindrical pipe that…
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history of particle accelerators
- In particle accelerator: History
…in California, constructed the first traveling-wave linear accelerator of electrons, exploiting microwave technology that had been developed for radar during World War II.
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linear accelerators
- In linear accelerator
Electron linacs utilize traveling waves rather than standing waves. Because of their small mass, electrons travel at close to the speed of light at energies as low as 5 megaelectron volts. They can therefore travel along the linac with the accelerating wave, in effect riding…
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synchrotron source
- In spectroscopy: Synchrotron sources
…synchrotron source consists of a linear electron accelerator that injects high-energy electrons into a storage ring (see particle accelerator: Synchrotrons). Since the intensity of the synchrotron radiation is proportional to the circulating current, many electron pulses from the injecting accelerator are packed into a single high-current bunch of electrons, and…
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use by Hofstadter
- In Robert Hofstadter
At Stanford he used a linear electron accelerator to measure and explore the constituents of atomic nuclei. At the time, protons, neutrons, and electrons were all thought to be structureless particles; Hofstadter discovered that protons and neutrons have a definite size and form. He was able to determine the precise…
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