Transverse betatron tune measurements

Serio, M.

doi:10.1007/bfb0018282

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…Betatron tune measurements [1] are used as a reliable diagnostic of transverse beam dynamics. The measurement of the working point of a circular accelerator, is an essential procedure in order to optimize performance and reduce particle losses.…”

Section: Introductionmentioning

confidence: 99%

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Refined betatron tune measurements by mixing beam position data

Zisopoulos

Papaphilippou

Laskar

2019

Phys. Rev. Accel. Beams

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The measurement of the betatron tunes in a circular accelerator is of paramount importance due to their impact on beam dynamics. The resolution of the these measurements, when using turn by turn (TbT) data from beam position monitors (BPMs), is greatly limited by the available number of turns in the signal. Due to decoherence from finite chromaticity and/or amplitude detuning, the transverse betatron oscillations appear to be damped in the TbT signal. On the other hand, an adequate number of samples is needed, if precise and accurate tune measurements are desired. In this paper, a method is presented that allows for very precise tune measurements within a very small number of turns. The theoretical foundation of this method is presented with results from numerical and tracking simulations but also from experimental TbT data which are recorded at electron and proton circular accelerators.

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Section: Introductionmentioning

confidence: 99%

“…where the gain in resolution is pronounced from the appearance of the M l−1 factor, if compared to the single BPM analysis, Eq (1).…”

Section: Introductionmentioning

confidence: 99%

Refined betatron tune measurements by mixing beam position data

Zisopoulos

Papaphilippou

Laskar

2019

Phys. Rev. Accel. Beams

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Radio frequency systems of the CERN synchrotron accelerators

Valuch

2009

2009 19th International Conference Radioelektronika

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CERN -the European Organization forNuclear Research -is the largest particle physics laboratory and one of the world's most respected scientific institutes. Currently it operates ten particle accelerators, a new linear injector for Hacceleration is under construction and two future machines are in the study and research phase.Radio frequency systems are a vital part of almost all particle accelerators. The RF systems at CERN cover a frequency range from a few kHz up to 30 GHz, and a power range from the noise levels up to hundreds of MW in a single structure. The Low-Level loops of the RF systems accommodate a wide range of electronics from purely analogue circuitry dating back to the 60's up to state of the art remotely operated digital systems based on the most recent FPGA and DSP technology. This paper provides a short overview of the RF systems of the CERN synchrotron particle accelerators with emphasis on the specific problems and issues typical for each accelerating stage in the chain.

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Transverse betatron tune measurements

Cited by 2 publications

References 12 publications

Refined betatron tune measurements by mixing beam position data

Refined betatron tune measurements by mixing beam position data

Radio frequency systems of the CERN synchrotron accelerators

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