1 / 18

Toyoko Orimoto LBNL & UC Berkeley

ATF Cavity-BPM Analysis NanoBPM Project Third Mini-Workshop on Nano Project at ATF May 30-31, 2004. Toyoko Orimoto LBNL & UC Berkeley. ATF BPMs. SLAC-BINP BPMs. ~ 6 meters. SLAC & KEK BPMs at ATF. Two BPM experiments at ATF. Introduction.

licia
Download Presentation

Toyoko Orimoto LBNL & UC Berkeley

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ATF Cavity-BPM AnalysisNanoBPM Project Third Mini-Workshop on Nano Project at ATFMay 30-31, 2004 Toyoko Orimoto LBNL & UC Berkeley

  2. ATF BPMs SLAC-BINP BPMs ~ 6 meters SLAC & KEK BPMs at ATF Two BPM experiments at ATF ATF BPM – Toyoko Orimoto

  3. Introduction • During March trip… connected ATF BPMs to SLAC generation 1 electronics Signal smaller than expected • Short decay time • Lower freq oscillation on top of usual ~20MHz • Attempted calibration of KEK BPMs during March trip • On this trip… waveforms from the BPMs look much better • Another attempted calibration ATF BPM – Toyoko Orimoto

  4. Trigger Ref SLAC x1 (for comparison) Raw Waveforms from ATF BPMs 18 March ‘05 calibration run y1 x1 ~2 MHz ~24 MHz y2 x2 y3 x3 ATF BPM – Toyoko Orimoto

  5. Corrector Bump Calibration: Amp vs Event X 0→-875mm Dataset X1 X2 X3 Amplitude event X 0→+875mm Dataset X1 X2 X3 Amplitude ATF BPM – Toyoko Orimoto event

  6. Waveforms BPM X1: X 0→-875mm 0 -125 -250 -375 -500 -625 -750 -875 -250mm 0mm -125mm -375mm -750mm -500mm -625mm -875mm ATF BPM – Toyoko Orimoto

  7. Amplitude: Cross-coupling (I) X 0→-875mm Dataset Y2 Amp Y1 Amp Y3 Amp X2 Amp X1 Amp X3 Amp X 0→+875mm Dataset Y2 Amp Y1 Amp Y3 Amp ATF BPM – Toyoko Orimoto X2 Amp X1 Amp X3 Amp

  8. Amplitude: Cross-coupling (I) Y 0→-875mm Dataset Y2 Amp Y1 Amp Y3 Amp X2 Amp X1 Amp X3 Amp Y 0→+875mm Dataset Y1 Amp Y2 Amp Y3 Amp ATF BPM – Toyoko Orimoto X2 Amp X1 Amp X3 Amp

  9. Waveforms from May 24 May ‘05 run Ref X2 Y1 Y3 X3 Y2 ATF BPM – Toyoko Orimoto

  10. Corrector Calibration • Bump beam in 50mm steps using corrector magnets • Used correctors upstream of SLAC-BINP BPMs • Quads off – from QD6X downstream Beam orbit vs extraction line BPM # ATF BINP ATF BPM – Toyoko Orimoto

  11. Corrector Calibration Response in BINP BPMs is what we expected… BINP Y1 BINP Y3 BINP Y2 Amplitude event ATF BPM – Toyoko Orimoto

  12. Corrector Calibration X -700mm →+700mm Ref X2: Broken channel X3 Amplitude event Y1 Y3 Y2 Amplitude ATF BPM – Toyoko Orimoto event

  13. Corrector Calibration Y -700mm →+700mm Ref X2: Broken channel X3 Amplitude event Y1 Y3 Y2 Amplitude ATF BPM – Toyoko Orimoto event

  14. Conclusions • Continue studying these BPMs • Three shifts this week • Repair X2 broken channel ? • Steer beam through ATF BPMs • Perform proper calibration • What changed between March and May data? ATF BPM – Toyoko Orimoto

  15. Corrector Bump Calibration: Amp vs Event Y 0→-875mm Dataset Y1 Y2 Y3 Amplitude event Y 0→+875mm Dataset Y1 Y2 Y3 Amplitude ATF BPM – Toyoko Orimoto event

  16. Calibration: Amp vs Beam Offset X 0→-875mm Dataset BPM X1 BPM X2 BPM X3 Amplitude X 0→+875mm Dataset BPM X1 BPM X2 BPM X3 Amplitude ATF BPM – Toyoko Orimoto

  17. Calibration: Amp vs Beam Offset Y 0→-875mm Dataset BPM Y1 BPM Y2 BPM Y3 Amplitude Y 0→+875mm Dataset BPM Y1 BPM Y2 BPM Y3 Amplitude ATF BPM – Toyoko Orimoto

  18. Amplitude: Res & Cross-coupling (II) X 0→-875mm Dataset Y2 Amp Y2 Amp X2 Amp X2 Amp X3 Amp X1 Amp Y1 Amp Y3 Amp X 0→+875mm Dataset Y2 Amp Y2 Amp X2 Amp X2 Amp X3 Amp X1 Amp Y1 Amp Y3 Amp ATF BPM – Toyoko Orimoto

More Related