科技报告详细信息
An effective longitudinal space-charge impedance model for beamswith non-uniform and non-axissymmetric transverse density | |
Venturini, Marco | |
Lawrence Berkeley National Laboratory | |
关键词: Space Charge Space Charge Impedance; Space Charge Impedance; Impedance; 43; Instability; | |
DOI : 10.2172/927331 RP-ID : LBNL--63111 RP-ID : DE-AC02-05CH11231 RP-ID : 927331 |
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美国|英语 | |
来源: UNT Digital Library | |
【 摘 要 】
Use of a one-dimensional model of longitudinal space-charge(SC) impedance has been proposed for studying the microbunchinginstability in single-pass delivery systems relevant for the nextgeneration of FELs. For beams with uniform transverse density andcircular cross-section of radius r_b the SC impedance can be expressed ina handy analytical form, making this model particularly convenient. Inthis report we show how with an appropriate choice of r_b one can usethis as an effective-beam model to approximate beams with non-axissymmetric and non-uniform transverse densities.
【 预 览 】
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927331.pdf | 182KB | download |