Nanometer BPM

• Future Plan, updated in June.2004 (htm, pdf) ; previous one, Dec. 2003
• NanoBPM collaboration, November, 2003, (pdf, 8 pages, 1.2MB)

Ground Motion and Beam Fluctuation at ATF

Summary of GM measurements at ATF: pdf, 12.7MB, 22pages

• Location of two NanoBPM systems at ATF; layout
• GM: measurements including coherency between two points: 2006.10.31, Sugahara's talk at the 3rd ATF2 project meeting, 18-20 December 2006.
• GM: measurement on the granite table (girder) and the reference bar: 2004.4.1, Yamaoka's talk
• GM: Tilt and vibration measurement: 2004.10.25(Mon.)-11.1(Mon.), Masuzawa's talk
  • location and tilts at ATF and ATF-2
• GM: Measurement: 2004.2.10(Tue.)-2.11(Wed.), presented by Y. Nakayama (J-Power Co. Ltd.) ; pdf, 33 pages, 28.7MB and location (pictures)
• GM: measurement: 2004.2.9(Mon.)18:00-2.12(Thr.)9:00, Yamaoka's talk
• GM: measurement: 2003.8.26(Tue.)17:15-9.1(Mon.)16:00, Yamaoka's talk
  • Locations: layout
  • Power spectra: 1994.12.2 and 2003.8.27
  • Integrated amplitude in 2003.8.26-9.1: 1Hz, 5Hz, 10 Hz
  • Coherence for 5m distance: 26,27 August and 1 September
• GM: measurements at laboratories etc. in world by DESY group;
  • Homepage of vibration.desy.de
  • talk by Heiko Ehrlichmann on 13the April 2004,PDF (25 pages, 18.8MB)
• GM model
  • Link to ground motion model by A.Seryi (SLAC)
  • KEK-GM model for LINAC simulation by K.Kubo.
  • Review of GM model by T.Tauchi.
• Vertical Fluctuation
  • jitter correlation between DR and EXT: BPM location and result
  • measurement by cavity-BPMs: December,2004
  • Laser wireF2001.6.18
  • measurement by cavity-BPMs: May,2003, and comparison with the LW

• ATF2 : IP-BPM
  • 3 August 2006, memo, Estimation of x-y isolation in the electronics and design for the ILC-like beam (3) by P.Doublet
  • 27 July 2006, memo, Design for the ILC-like beam (2) by P.Doublet
  • 6 July 2006, memo, Design for the ILC-like beam and the electronics test (5) by P.Doublet
  • 20 June 2006, memo, MAFIA study and the electronics test (4) by P.Doublet
  • 6 June 2006, memo, MAFIA study and the electronics test (3) by P.Doublet
  • 23 May 2006, memo, First MAFIA study and the electronics test (2) by P.Doublet
  • 8 May 2006, memo, Basic study of the IP-BPM by P.Doublet
  • 18 April 2006, memo, Introduction of Philippe Doublet and work plan by 7th August 2006
• Minutes of 24th meeting on 22 September,2005 ; electronics modification, reference cavity and IP-BPMs (ATF2)
• Minutes of interim ATF Nano project meeting on 15 March,2005
• Minutes of ATF/LiCAS meeting on 4 March,2005
• Minutes of video meeting on 17 February,2005 ; BPM for FF test (ATF2) by V.Vogel, Optics designs for a bunch compressor in ATF2 by E.S. Kim, and ATF2 Tuning Studies by Deepa A.Kalinin, ATF2 Organization by T.Tauchi.
• Minutes of 23rd meeting on 27 January,2005 ; BPM for FF test (ATF2).
• Minutes of 21st meeting on 25 November,2004; Status of the beam test and plan.
• Minutes of 21st meeting on 14 October,2004 ; Status of the system and the cavity BPMs etc.
• Minutes of 20th meeting on 7 October,2004 ; Alignment of the KEK system, c-band cavity BPM, and Status of the system etc.
• Minutes of 19th meeting on 30 September,2004 ; Installation of the KEK system, c-band cavity BPM, and Status of mover system etc.
• Minutes of 18th meeting on 9 September,2004 ; Status of mover system, and c-band cavity BPM. Discussion on the schedule for installation.
• Minutes of 17th meeting on 25 August,2004 ; Status of mover system, laser frame system and c-band cavity BPM. Discussion on the schedule for installation.
• Minutes of 16th meeting on 20 May,2004 ; New BPM electronics beam test(2), laser frame configuration.
• Minutes of 15th meeting on 28 April,2004 ; New BPM electronics beam test, laser frame configuration and vibrational measurement of the granite table and the reference bar.
• Minutes of 14th meeting on 1 April,2004 ; Mover Controller and BPM electronics, Optical Anchor System with laser BPMs.
• Minutes of 13th meeting on 19 February,2004 ; performance of prototype mover, thermal distortion, optical anchor and GM measurement at ATF and KEK BPMs.
• Minutes of 12th meeting on 22 January,2004 ; performance of prototype mover, optical anchor and laser seismometer.
• Minutes of 11th meeting on 25 December,2003 ; X-band cavity BPM, optical anchor issue, prototype mover, update of the reference system and schedule.
• Minutes of 10th meeting on 4 December,2003 ; Laser seismometer, final design of the reference system and a proposal of the measurement method for reference bar device and ground motion utilizing interferometer and linear transition of light in vacuum.
• Minutes of 9th meeting on 20 November,2003 ; Vertical fluctuation observed by the Laser wire at ATF-DR, updates on the reference system and the LLNL support, and review of optical anchor.
• Minutes of 8th meeting on 30 October,2003 ; Girder and reference frame design, Active feedback prototype and laser interferometer and discussion on the mini-workshop.
• Minutes of 7th meeting on 16 October,2003 ; Position monitors, KEK NanoBPM design and discussion on the mini-workshop, GM measurement at ATF and near future plan.
• Minutes of 6th meeting on 19 September,2003 ; Nano BPM collaboration plan, GM measurement at ATF, prototype design.
• Minutes of fifth meeting on 8 August,2003 ; Updated design of three BPM system and the reference block, and the QPD performance.
• Minutes of fourth meeting on 25 July,2003 ; Design of three BPM system and design of reference block, future schedule.
• Minutes of third meeting on 27 June,2003 ; stabilization of three BPMs.
• Minutes of meeting with SLAC group on 12 June,2003 ; KEK support system, results from this beam tests.
• Minutes of meeting with SLAC group on 4 June,2003 ; Requirements for the support system, some results from March experiment, cavity BPM with selective coupler, questions to the Livermore group and discussion.
• Minutes of second meeting on 28 May,2003 ; specification of BPM mover, KEK high technology, Livermore system.
• Minutes of first meeting on 13 May,2003 to discuss purpose and plan

• Third Mini-Workshop on Nano Project at ATF, 30-31 May, 2005, at KEK.
• MDI Workshop, 6-8 January, 2005, SLAC, our talk list
• ATF2 Mini-Workshop, 5 January, 2005, SLAC, our talk list
• Second Mini-Workshop on Nano Project at ATF, 11-12 December, 2004, at KEK.
• Laser-wire collaboration
• First Mini-Workshop on Nano Project at ATF, 5-6 June, 2004, at KEK.
  • Workshop summary presented at the Laser wire mini-workshop by T. Tauchi,24 June 2006 (pdf, 35.4MB) .
• 2nd Nanometer-BPM Mini-Workshop, 4-5 November,2003
  • Report (Japanese) to the LC project committee by T. Tauchi,14 November 2003.
  • Talks from KEK (Temporary) to be stored in the workshop home page.
    • Performance of Active Vibration Isolation System at KEK, R. Sugahara (pdf, 16.4MB)
    • Stabilization Projects at SLAC,J. Frisch (ppt, 4.7MB)
    • Development of NanoBPM support system in KEK, Y. Honda (pdf, 1.5MB)
    • FEATHER progress report, N. Delerue (pdf, 806KB)
    • Development of High resolution Cavity BPM,Y. Inoue (pdf, 806KB)
    • Cavity BPM for X-band linac, T. Naito (ppt, 2.9MB)
• Nanometer-BPM Mini-Workshop, 10-12 March,2003
• ATF2 minutes (Japanese): final focus beam with "new optics" at ATF.

Reports on QBPM and IP-BPM

1. "RF measurement of ATF2 Reference cavities", Y.Inoue, Y.Honda, 5 March 2008, abstract, pdf , 4 pages, 540kB
   • "Beam test of reference cavity", T.Nakamura, 31 October 2006, pdf , 10 pages, 1.2MB
2. "RF measurement in IPBPM of BSM", Y.Inoue, Y.Honda, 4 March 2008, abstract, pdf , 5 pages, 708kB
   • "Design change proposal of IPBPM", T.Nakamura, 9 July 2007, pdf , 6 pages, 478kB
3. "Multi-bunch feedback using IPBPM (3 bunches)", Y.Inoue, T.Nakamura, Y.Honda, 22 February 2008, abstract, pdf , 10 pages, 576kB
4. "Development of Beam-position Monitors with High Position Resolution", Master Thesis by T. Nakamura, Department of Physics, Graduate School of Science, The University of Tokyo, 3 February 2008, abstract, pdf , 139 pages, 6.9MB
5. "Multi-bunch feedback using IPBPM (FEATHER3)", Y.Inoue, Y.Honda, H.Shimizu, 8 February 2008, abstract, pdf , 11 pages, 640kB
6. "Stability of Q-BPM", Y.Honda, Y.Inoue, 25 July 2007, abstract, pdf , 4 pages, 466kB
7. "Bore aperture measurement of QEA magnets", Y.Honda, 20 July 2007, abstract, pdf , 7 pages, 574kB
8. "RF measurement of ATF2 Q-BPMs", Y.Honda, Y.Inoue, 16 July 2007, abstract, pdf , 10 pages, 825kB
9. "RF cable for ATF2 Q-BPM", T.Nakamura, 6 July 2007, abstract, pdf , 14 pages, 935kB
10. "Position error of tap holes on ATF2 Q-magnets", Y.Honda, Y.Inoue, 3 July 2007, abstract, pdf , 10 pages, 495kB
11. "Vacuum pipe of new Shintake monitor", Y.Honda, T.Nakamura, T.Suehara, 19 June 2007, pdf , 7 pages, 751kB
12. "RF test for KNU IP BPM cold model", by S.H.Shin, 20 June 2007, abstract, pdf , 4 pages, 6.4MB
13. "Tests on the variable attenuator for IPBPM", Y.Honda, 29 March 2007, abstract, pdf , 6 pages, 264kB
14. "Bunch length monitor using beam spectrum", Y.Honda, T.Nakamura, K.Sakaue, 26 January 2007, abstract, pdf , 10 pages, 1.5MB
15. "Angle sensitivity of IPBPM", T.Hino, Y.Honda, Y.Inoue, T.Nakamura, S-H.Shin, 12 November 2006, abstract, pdf , 10 pages, 671kB
16. "Bench test of converter module", Y.Honda, 24 October 2006, abstract, pdf , 10 pages, 1.1MB
17. "Pulse shape of IPBPM", T.Hino, Y.Honda, Y.Inoue, T.Nakamura, S-H.Shin, JH.Yue, 12 November 2006, abstract, pdf , 8 pages, 1MB
18. "Narrow band detection electronics for a strip-line BPM", Y.Honda 26 October 2006, abstract, pdf , 18 pages, 1.6MB
19. "Bench test of limiter/int detector module", Y.Honda, 23 October 2006, abstract, pdf , 9 pages, 599kB
20. "Bench test of phase detector module", Y.Honda, 18 October 2006, abstract, pdf , 14 pages, 975kB
21. "Beam Locked L.O. for IP-BPM", Y.Honda, 16 October 2006, abstract, pdf , 9 pages, 751kB
22. "Resolution analysis of Mar.7/2006 data", Y.Honda and Y.Inoue, 16 August 2006, abstract, pdf , 14 pages, 1.8MB
23. "Study of an electron Beam Position Monitor (Draft)", Philippe Doublet, August 2006, pdf , 27 pages, 1.3MB
24. "Summary of the first IP-BPM electronics tests", by P.Doublet, 21 July 2006, pdf , 11 pages, 882KB
25. "Summary of the first experimental tests of the cavity of the IP-BPM", by P.Doublet, 26 June 2006, pdf , 6 pages, 147KB
26. "Study on IP-BPM pulse shape", by P.Doublet, T.Hino, Y.Honda, Y.Inoue, T.Nakamura, 18 June 2006, abstract, pdf , 9 pages, 4.2MB
27. "Position sensitivity test of IP-BPM", by P.Doublet, T.Hino, Y.Honda, Y.Inoue, T.Nakamura, 9 June 2006, abstract, pdf , 6 pages, 378KB
28. "First Simulation of IP-BPM by MAFIA", P. Doublet, 20 May 2006, abstract, pdf , 11 pages, 488KB
29. "Angle sensitivity of Cavity BPM", by Y.Honda and Y.Inoue, 19 May 2006, abstract, pdf , 6 pages, 353KB
30. "Beam test of ATF2 Q-BPM electronics", Y.Honda, 28 April 2006, abstract, pdf , 9 pages, 464KB
31. "An introduction to rectangular Cavity Beam Position Monitors", Philippe Doublet, 23-25 April 2006, abstract, pdf , 12 pages, 303KB
32. "RF measurement of IP-BPM cold model", by Y.Honda, 6 April 2006, abstract, pdf , 6 pages, 1MB
33. "Summary of requirements on Q-BPM in the ATF2", Y.Honda, 26 January 2006, abstract, pdf , 3 pages, 79KB
34. "Electronics test using a beam signal", by T.Hino, Y.Honda, Y.Inoue, 20 January 2006, abstract, pdf , 10 pages, 801KB
35. "Electronics for IP-BPM", by Y.Honda, 12 January 2006, abstract, pdf , 11 pages, 518KB
36. "Test of Charge ADCfs characteristics", by Y.Honda, 6 January 2006, abstract, pdf , 5 pages, 244KB
37. "Electronics test with a dummy pulse", by Y.Honda, 5 January 2006, abstract, pdf , 7 pages, 788KB
38. "Loss in transferring signal from the BPM to the electronics", by Y.Honda, 2 January 2006, abstract, pdf , 3 pages, 160KB
39. "Test of SLAC electronics", by Y.Honda, 30 December 2005, abstract, pdf , 4 pages, 296KB
40. "Improvement of BPM electronics (converter)", by Y.Honda, 27 December 2005, abstract, pdf , 8 pages, 564KB
41. "Mechanical stability of Q-BPM", Y.Honda, 20 December 2005, abstract, pdf , 6 pages, 716KB
42. "Electrical center measurement before and after the cavity tuning ", by T.Hino, Y.Honda, W.H.Hwang, Y.Inoue, S.H.Kim, S.J.Park, Y.J.Park, 7 December 2005; abstract, pdf , 6 pages, 240KB
43. "Beam test of prototype BPM after tuning", by Y.Honda, W.H.Hwang, Y.Inoue, S.H.Kim, A.Liapine, S.J.Park, Y.J.Park , 2 December 2005; abstract, pdf , 6 pages, 310KB
44. "XY-isolation tuning using the tuners", by Y.Honda and Y.Inoue, 25 November 2005; abstract, pdf , 5 pages, 344KB
45. "Repeatability of antenna measurement device", by Y.Honda and Y.Inoue, 28 November 2005; abstract, pdf , 5 pages, 316KB
46. "Update on IP-BPM design", by Y.Honda, 23 November 2005; abstract, pdf , 5 pages, 328KB
47. "Electrical center measurement of PAL BPM", by Y.Honda and Y.Inoue, 22 November 2005; abstract, pdf , 15 pages, 508KB
48. "Transient signal of cavity BPMs", by Y.Honda and Y.Inoue, 18 November 2005; abstract, pdf (English), 4 pages, 331KB
49. "First beam test of prototype cavity BPM for ATF2", by Y.Honda and Y.Inoue, 11 November 2005; abstract, pdf (English), 9 pages, 1.1MB
50. "Signal improvement of modified KEK cavity BPM", by Y.Honda and Y.Inoue, 8 November 2005; abstract, pdf (English), 9 pages, 1.1MB
51. "Effect of frequency split on xy-isolation of a cavity BPM", 6 November 2005; abstract, pdf (Japanese), 6 pages, 382kB
52. "RF measurements of Prototype Cavities for ATF2 Q-BPM", by Y.Honda, Woon-Ha Hwang, Seung-Hwan Kim, Yong-Jung Park, 25 October 2005; abstract, pdf (English), 8 pages, 741kB
53. "Port measurements of KEK test model for ATF2 Q-BPM", 10 October 2005; abstract, pdf (English), 5 pages, 471kB
54. "Optimizing slot position of IP-BPM", 3 October 2005; abstract, pdf (Japanese), 6 pages, 350kB
55. "Detuning the Reference Cavity", 4 October 2005; abstract, pdf (Japanese), 5 pages, 1.1MB
56. "Wave guide to Coaxial cable Adapter for IP-BPM", 27 September 2005; abstract, pdf (Japanese), 7 pages, 346kB
57. "Output power from KEK Cavity BPM", 23 September 2005; abstract, pdf (Japanese), 7 pages, 572kB
58. "Post Production Check Items for Cavity BPM", 14 September 2005; abstract, pdf (English), 3 pages, 59kB
59. "Gap length and Aperture of IP-BPM Cavity", 13 September 2005; abstract, pdf (Japanese), 4 pages, 164kB
60. "Layout of IP-BPM", 12 September 2005; abstract, pdf (Japanese), 6 pages, 314kB, and IP-BPM parameters(pdf)
61. "Shielding the Reference Cavity", 9 September 2005; abstract, pdf (Japanese), 4 pages, 578kB
62. "Understanding the Strange signal of KEK cavity BPM", 7 September 2005; abstract, pdf (Japanese), 7 pages, 965kB
63. "Coupling (&beta) measurement of the cavity BPM ports", 31 August 2005; abstract, pdf (Japanese), 6 pages, 332kB
64. "Measurement of X-Y coupling in the cavity BPM", 29 August 2005; abstract, pdf (Japanese), 4 pages, 149kB
65. "Study on the head amplifier of the converter module", 25 August 2005; abstract, pdf (Japanese), 5 pages, 180kB
66. "Measurement of coupling between the reference and the sensor cavity", 9 August; abstract, pdf (Japanese), 6 pages, 304kB
67. "Study on signal loss and gain in the cavity BPM converter electronics", 18 July 2005; abstract, pdf (Japanese), 5 pages, 156kB
68. "Effect of the local oscillator's quality on the overall noise of the cavity BPM electronics", 7 July 2005; abstract, pdf (Japanese), 5 pages, 196kB
69. "Signal loss factor measurement of the new cables", 29 March 2005; abstract, pdf (Japanese), 3 pages, 196kB
70. "Beam test report (Feb.25)", 9 March 2005; abstract, pdf (Japanese), 14 pages, 2.4MB
71. "Band width optimization for Cavity BPM electronics", 23 January 2005; abstract, pdf (Japanese), 6 pages, 480kB
72. "Noise survey of the Cavity BPM electronics", 23 December 2004; abstract, pdf (Japanese), 9 pages, 741kB