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Commissioning Hardware and IP Configuration of ATF2

Commissioning Hardware and IP Configuration of ATF2. 2007 / 12 / 19 ATF2 project meeting at KEK Toshiyuki Okugi (KEK). Commissioning Hardware for ATF2. I proposed the following hardware preparation to SLAC at the ATF2 meeting in March 2007. 1) BPM ;

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Commissioning Hardware and IP Configuration of ATF2

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  1. Commissioning Hardware and IP Configuration of ATF2 2007 / 12 / 19 ATF2 project meeting at KEK Toshiyuki Okugi (KEK)

  2. Commissioning Hardware for ATF2 I proposed the following hardware preparation to SLAC at the ATF2 meeting in March 2007. 1) BPM ; - I, Q information from each readout electronics (SLAC) - Temporal BPM control panel for commissioning (KEK) (x , y) = A * Sqrt (I^2+Q^2)　* Sgn ( I or Q ) A ; free parameter I,Q ; from SLAC  First pulse calibration result seems to be good performance . Can we use the BPM information from the beginning of the commissioning? If YES, we don’t have to prepare the temporal BPM control panel. 2) Screen, ICT (KEK) and information ofamplitude of reference cavity (SLAC). 3) Quad Movers Calibration and control system should be ready before commissioning (SLAC). First priority of the ATF commissioning is to transport the beam to the end of ATF2 beam line without beam loss.

  3. IP configurations presented at Annecy Meeting Sweeping Magnet Honda Monitor Carbon Wire Scanner Shintake Monitor Area C-band BPM Screen Monitor S-band BPM Stripline BPM Small vertical aperture ICT 200 100 180 180 120 100 100 100 550 200 180 135 100 180 QD0 Dump Bend 350 200 200 400 540 660 150 567.5 705 825 IP-BPM 485 1015 IP How to put all of the devices in the limited space ? Is it possible to shorten - the length of the stripline kicler ? - the Shintake monitor support table thickness ? - the thickness of the adopter of S-band BPM ? - the length of Honda monitor ?

  4. Final Doublet Table Configuration QD0FF QF1FF SF1FF SD0FF 450.1 450.1 200 200 76.2 180 76.2 180 100 100 100 100 SBPM SBPM SBPM SBPM FFTB 2.13 S3.00 FFTB 2.13 S3.00 QC3 QC3 380 785 380 785 2630 200mm space is necessary for S-band BPM with adopter.

  5. Honeycomb Table IP BPM Chamber IP BPM chamber will be mounted in the hole of the Shintake monitor honeycomb table IP 100mm 135mm 100mm IP BPM will be located on the chamber.

  6. Sweeping Magnet The old stripline kicker will be modified for the sweeping magnet. Flange to Flange Length 150 mm Electrode Length 80 mm Electrode Gap 40 mm Power Supply Specification DC +/- 100V, double pulse , bipolar Kick Angle 6.1nrad / V Scan Position at IP 3.7nm / V Dynamic Range +/- 370nm - enough for Shintake monitor, carbon wire and IP FB. - However, it is too week for Honda monitor . For the nominal operation, one side of electrodes should be open, and use DC PS. For the first feedback, one side of electrodes should be connect to the load.

  7. New IP configurations Honda Monitor Carbon Wire Scanner Stripline BPM S-band BPM Screen Monitor ICT 100 100 180 180 185 100 200 100 200 180 235 200 135 100 180 QD0 Dump Bend 150 200 400 425 660 567.5 607.5 825 Sweeping Magnet 485 1015 IP IP BPM C-band BPM

  8. Stripline BPM Device List Blue ; wide beam pipe Red ; Long Electrode ( High Resolution)

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