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betatron
betatron (ˈbiːtətrɒn) [f. beta + -tron.] A machine designed for the acceleration of β particles. Kerst first spoke of the machine (1940) as an ‘Induction Accelerator’.1941 Time 29 Dec. 44/3 A new electron-hurling machine..its brilliant young inventor, Donald William Kerst, 30, who calls the machine ...
Oxford English Dictionary
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Betatron
The concept of the betatron had been proposed as early as 1922 by Joseph Slepian. References
External links
The Betatron at UIUC
Accelerator physics
German inventions of the Nazi period
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Cosmotron
The straight sections without magnets were worrisome because there was no focusing and the betatron oscillations would change suddenly and might swing
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Wiggler (synchrotron)
CEA built the first wiggler in 1966, not as a source of synchrotron radiation, but to provide additional damping of betatron and synchrotron oscillations
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doughnut
doughnut (ˈdəʊnʌt) Also donut. 1. A small spongy cake made of dough (usually sweetened and spiced), and fried or boiled in lard. Freq. made in the shape of a thick ring.1809 W. Irving Knickerb. (1861) 90 An enormous dish of balls of sweetened dough, fried in hog's fat, and called doughnuts, or olyko...
Oxford English Dictionary
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Proton Synchrotron
The amount of focusing in this way is not very great, and consequently the amplitudes of the betatron oscillations are large. The focusing of the particle can in theory become as strong as one wishes, and the amplitude of the betatron oscillations as small as desired.
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Donald William Kerst
The result of these efforts was the betatron. The betatron would influence all subsequent accelerators.
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Bruno Touschek
Schumann worked on a 15 MeV betatron, which was constructed near Hamburg and was operational in 1944. In particular, Touschek conceived the idea of radiation damping for electrons circulating in a betatron.
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Cao Jianyou
1945 he went to the U.S. to further his study, and got his Ph.D. degree from Massachusetts Institute of Technology in 1950 with his graduation paper Betatron
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Lester Skaggs
The goal was to utilize a Betatron to extract an electron beam for medical use. The betatron was invented by Kerst for physics experiments. The first clinical use of the high energy Betatron radiation for medical therapy proved beneficial to effectively reduce the mass of the tumor, yet not
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Intrabeam scattering
Bjorken–Mtingwa formulation
The betatron growth rates for intrabeam scattering are defined as,
,
,
. The following is general to all bunched beams,
,
where , , and are the momentum spread, horizontal, and vertical are the betatron growth times.
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Marcelo Damy
Donald William Kerst, inventor of the betatron. Returning once again to Brazil, Damy accepted an assistant professorship at the Department of Physics of USP, and helped install there in 1950 a betatron
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Plasma Physics Laboratory (Saskatchewan)
Early work centered on research with a Betatron.
Facilities
STOR-1M
STOR-1M is Canada's first tokamak built in 1983.
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Photofission
yields of photo-fission in uranium and thorium together with a search for photo-fission in other heavy elements, using continuous x-rays from a 100-Mev betatron
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Megavoltage X-rays
However prior to this other devices had been capable of producing megavoltage radiation, including the 1930s Van de Graaff generator and betatron.
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