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LEIR results 2012 and 2013 Summary. Michael Bodendorfer June 30 th , 2013 With the support of: M.E. Angoletta , G. Arduini , C . Carli , A. Findlay , P. Freyermuth , S. Hancock, S. Jackson, D. Manglunki , S. Pasinelli , SPS operators. Continuous electron cooling.

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Leir results 2012 and 2013 summary

LEIR results 2012 and 2013 Summary

Michael Bodendorfer

June 30th, 2013

With the support of:

M.E. Angoletta, G. Arduini, C. Carli, A. Findlay, P. Freyermuth,S. Hancock, S. Jackson, D. Manglunki, S. Pasinelli, SPS operators


2012 208 pb 54 leir nominal cycle q h 1 82 q v 2 72

Continuous electron cooling

RF capture @ 1780ms

Up to 50% loss

2012: 208Pb54+ LEIR NOMINAL cycle (Qh=1.82; Qv=2.72)

Extraction

@ 2880ms

(Master timer)

Magnetic ramp start @ 1823ms

7 injections. First at 215ms, then spaced 200ms. 200μs long.

B-field

Intensity in 1010 charges vs. cycle time: 0 to 3.6s


LEIR: Extracted intensity (Pb54+) per bunch

22.1.2013: S. Hancock lover εlong

29.11.2012

A. Findlay: Frevcorr

Pb54+/bunch

Goal (4.5E8/bunch)

23.11.2012: R. Scrivens discovers T2-phase effect

Extensive RF MD by M.E. Angoletta

CVORB change

SPS Ops

use Frevcorr

Xmas

Tech stop

LEIR stand-by


2012 while linac3 intensity remains the same

23.11.2012: Tank2 phase 65°71°

2012: While LINAC3 intensity remains the “same”


2012 reduction of momentum spread

2012: Reduction of momentum spread

FWHM = 15kHz

FWHM = 27kHz

65°

71°



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