Personal strategy for ATF2 beam operation in 2009

Toshiyuki OKUGI2009 / 7 /22

ATF2 weekly meeting

1st week (10/19 – 10/23 )

Fast Kicker test

DR BPM test

2nd week ( 10/26 – 10/30)

Beam extraction with nominal extraction kicker

Stripline BPM improvement• upgrade of present BPM readout - put more ADC and the timing adjustment - calibration with high pass filter - take calibration data with and w/o kicker pulse• test of the prototype of new readout electronics

Cavity BPM improvement• take stability data of calibration constants (calibrate some BPMs every day)

Septum rotation check with beam

Background test for IP-BSM detctor

Establish the reference detector of IP-BSM background

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Concentrate the hardware work in October

1st week ( 11/09 – 11/13 )

Cavity BPM study• C-band BPM - calibration - stabilize 1 week C-band BPM position readout• S-band BPM calibration

IP-BSM study• vertical laser wire mode

Optics study• EXT dispersion and coupling correction• make 1-2micron beam size at IP-BSM

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Laser wire

2nd week ( 11/16 – 11/20 )

Cavity BPM study• continuous study of the C-band BPM• calibration of S-band BPM

IP-BSM study• vertical laser wire mode• interference mode test, if possible

Optics study• EXT dispersion and coupling correction• establish 1-2micron beam size at IP-BSM• optics diagnostics, if BPMs are ready

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Laser wire

0th week ( 11/02 – 11/06 )

Shielding of Septum Area

Realignment of Final doublet to Dump

11 2009

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Beam tuning will be started from November

12 2009

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Cavity BPM study• establish of C-band & S-band BPM

IP-BSM study• observation of the interference pattern and beam size evaluation by interferometer mode• beam size measurement for sub-micron beam

Optics study• establish the high beta optics tuning• make sub-micron beam size at IP-BSM• background test for various beta* optics

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Laser wire

Target is the measurement of the sub-micron beam size

After the 2009 operation

• Decision of the beam optics for 2010 operation.

• Improvement of the IP-BSM DAQ to be used for beam operation

• Installation of the multi-OTR chambers.

• Installation of the new readout for all of the stripline BPMs, if necessary.

Target by the end of 2010 spring run

• Beam size measurement of < 100nm beam