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New fast beam profile monitor for electron-positron colliders
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10.1063/1.2720729
/content/aip/journal/rsi/78/4/10.1063/1.2720729
http://aip.metastore.ingenta.com/content/aip/journal/rsi/78/4/10.1063/1.2720729
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Hamamatsu R5900U-00-L16 multianode photomultiplier tube.

Image of FIG. 2.
FIG. 2.

Optical layout of the diagnostics. The lens sets up a beam image on the MAPMT photocathode.

Image of FIG. 3.
FIG. 3.

Block diagram of the FPM electronics.

Image of FIG. 4.
FIG. 4.

Example of the single-measured beam profile with the Gaussian fit.

Image of FIG. 5.
FIG. 5.

Spectra of beam oscillation measured by the FPM and by the BPM. , .

Image of FIG. 6.
FIG. 6.

Measured signal-to-noise ratio of the FPM and the BPM.

Image of FIG. 7.
FIG. 7.

Betatron oscillation chromatic decoherence. Oscillations of the beam center of mass and beam size are shown.

Image of FIG. 8.
FIG. 8.

Betatron oscillation decoherence due to the cubic nonlinearity. Oscillations of the beam center of mass and beam size are shown.

Image of FIG. 9.
FIG. 9.

Beam-beam instability. Oscillations of the beam center of mass and beam size are shown.

Image of FIG. 10.
FIG. 10.

Convergence of the beams, accompanied by a quadrupole instability.

Image of FIG. 11.
FIG. 11.

Vertical beam size vs betatron tunes.

Image of FIG. 12.
FIG. 12.

A spectrum of vertical synchrobetatron oscillations.

Image of FIG. 13.
FIG. 13.

Ratio of for a set of the VEPP-4M operation modes. Experimental points and theoretical curves are shown.

Image of FIG. 14.
FIG. 14.

Digital filtering of betatron oscillation measured.

Image of FIG. 15.
FIG. 15.

Measured betatron oscillation envelope in comparison with the theoretical one.

Image of FIG. 16.
FIG. 16.

Routine monitoring of beam phase oscillations.

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/content/aip/journal/rsi/78/4/10.1063/1.2720729
2007-04-23
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: New fast beam profile monitor for electron-positron colliders
http://aip.metastore.ingenta.com/content/aip/journal/rsi/78/4/10.1063/1.2720729
10.1063/1.2720729
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