eeFACT2016 - List of Authors (Smaluk, V.V.)

Paper	Title	Page
TUT3AH3	Beam-based Impedance Measurement Techniques	112
	V.V. Smaluk BNL, Upton, Long Island, New York, USA
	Funding: Work supported by DOE under contract No.DE-AC02- 98CH10886 Characterization of a vacuum chamber impedance is necessary to estimate stability conditions of a particle beam motion, to find a limit of the beam intensity and characteristic times of single-bunch and multi-bunch instabilities. For new accelerator projects, minimization of the vacuum chamber impedance is now the mandatory requirement. For an accelerator in operation, the impedance can be measured experimentally using various beam-based techniques. The beam-impedance interaction manifests itself in measurable beam parameters, such as betatron tunes, closed orbit, growth rates of instabilities, bunch length and synchronous phase. The beam-based techniques developed for measurement of the longitudinal and transverse impedance are discussed, including theoretical basics and experimental results.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2016-TUT3AH3
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WET1H2	Beam Position Measurements at Synchrotron Light Sources
	V.V. Smaluk BNL, Upton, Long Island, New York, USA
	Funding: Work supported by DOE under contract No.DE-AC02- 98CH10886 User operations of modern synchrotron light sources require very high stability of the electron beam in the light generating devices (wigglers and undulators), usually at the level of 5-10% of the beam size. The beam stability is provided by use of fast orbit feedback systems, the essential parts of which are beam position monitors (BPMs). Since the beam emittance is very low, the BPMs should provide reliable beam position measurements with sub-micron accuracy. Some aspects of design of modern BPM systems are given, the measured BPM resolution is presented, and some techniques of the resolution improvement are discussed.
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Paper

Title

Page

Beam-based Impedance Measurement Techniques

112

V.V. Smaluk
BNL, Upton, Long Island, New York, USA

Funding: Work supported by DOE under contract No.DE-AC02- 98CH10886
Characterization of a vacuum chamber impedance is necessary to estimate stability conditions of a particle beam motion, to find a limit of the beam intensity and characteristic times of single-bunch and multi-bunch instabilities. For new accelerator projects, minimization of the vacuum chamber impedance is now the mandatory requirement. For an accelerator in operation, the impedance can be measured experimentally using various beam-based techniques. The beam-impedance interaction manifests itself in measurable beam parameters, such as betatron tunes, closed orbit, growth rates of instabilities, bunch length and synchronous phase. The beam-based techniques developed for measurement of the longitudinal and transverse impedance are discussed, including theoretical basics and experimental results.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-eeFACT2016-TUT3AH3

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WET1H2

Beam Position Measurements at Synchrotron Light Sources

V.V. Smaluk
BNL, Upton, Long Island, New York, USA

Funding: Work supported by DOE under contract No.DE-AC02- 98CH10886
User operations of modern synchrotron light sources require very high stability of the electron beam in the light generating devices (wigglers and undulators), usually at the level of 5-10% of the beam size. The beam stability is provided by use of fast orbit feedback systems, the essential parts of which are beam position monitors (BPMs). Since the beam emittance is very low, the BPMs should provide reliable beam position measurements with sub-micron accuracy. Some aspects of design of modern BPM systems are given, the measured BPM resolution is presented, and some techniques of the resolution improvement are discussed.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)