| Abstrakt: |
In Novosibirsk, the Synchrotron Radiation Facility Siberian Circular Photon Source (SRF SKIF) 4+ generation synchrotron radiation source is currently under construction. Its specific feature is a low emittance at a high beam current. Collective effects in the dynamics of an intense beam may lead to various instabilities and, correspondingly, to worsen the quality of a beam or its complete loss. To suppress the undesirable effects, it is necessary to analyze the interaction of a beam with different vacuum chamber elements to minimize their impedances. This paper presents the calculation of longitudinal and transversal impedances for the main elements of the vacuum chamber of the SKIF storage ring, such as the fundamental harmonic resonator, flange connection, compensator, beam position monitor, and pumping port. The total coherent losses, kick-factor, and total effective impedance are calculated, and the contributions from each type of elements to the total characteristics are estimated. [ABSTRACT FROM AUTHOR] |
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