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High-brightness electron beam production, transport, and measurement
This paper will review some of the recent developments in the area of high-brightness electron beams. Most of the paper will be devoted to emittance compensation concepts relating to high-brightness b...
This paper will review some of the recent developments in the area of high-brightness electron beams. Most of the paper will be devoted to emittance compensation concepts relating to high-brightness b...
Laser acceleration of protons from thin film targets
A collimated beam of fast protons, witlr energies as high as 10 MeV and total number of 109, confined in a cone angle of 40°±10° has been observed when a 10 TW laser with frequencies eith...
A collimated beam of fast protons, witlr energies as high as 10 MeV and total number of 109, confined in a cone angle of 40°±10° has been observed when a 10 TW laser with frequencies eith...
Aperture effects in intense beams
AIP Conf. Proc. -- May 31, 2001 -- Volume 569, pp. 544-552
The ninth workshop on advanced accelerator concepts;
doi:10.1063/1.1384382
Issue Date: 31 May 2001
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An aperture affects an intense beam in two ways: first, it changes the relative contributions of thermal and space charge effects by changing the ratio of emittance to generalized beam perveance; second, the velocity space is altered depending on the aperture size relative to the beam size and also on the aperture location. It is observed that collimation of an expanding intense electron beam leads to the formation of an internal ring of charge that propagates towards the beam center. The effect depends on the presence of external (linear) focusing, but is independent of the nature of this focusing. Furthermore, the phenomenon is reproduced well in a simple model based on a K-V distribution for the bulk of the beam and special non-laminar orbits near the beam edge. ©2001 American Institute of Physics.
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KEYWORDS and PACS
particle accelerators,
particle beam dynamics,
particle optics,
particle beam focusing,
phase space methods,
electron beams,
storage rings
- 29.20.Dh
Experimental methods and instrumentation for elementary-particle and nuclear physics Cyclic accelerators and storage rings Storage rings - 29.27.Eg
Experimental methods and instrumentation for elementary-particle and nuclear physics Beams in particle accelerators Beam handling; beam transport - 41.75.Ht
Electromagnetism; electron and ion optics Charged-particle beams Relativistic electron and positron beams - YEAR: 2001
PUBLICATION DATA
0094-243X (print)
AIP
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