1. ILC Cryomodule Vibration Measurements September 6, 2006 Mike McGee AD/Accelerator Physics Department (APD) Meeting

2. Vibration Measurement Example  Vertical & Horizontal piezoelectric accelerometers mounted on Capture Cavity 2 cold mass For Cryogenic service Radiation shields  External measurements made using Geophones Mike McGee, 6 Sep 2006 APD Meeting

3. Environment Measurement Process Mike McGee, 6 Sep 2006 APD Meeting Floor Seisometer Cryostat Geophone Amplifier & A/D Laptop Data logger

4. Cold Mass Measurement Process Mike McGee, 6 Sep 2006 APD Meeting Cold Mass Accelerometer Amplifier & A/D Laptop Data logger Signal Conditioner & Low Pass Filter

5. Environment & Cold Measurement Analysis Mike McGee, 6 Sep 2006 APD Meeting

6. Demonstration Mike McGee, 6 Sep 2006 APD Meeting

7. Demonstration Mike McGee, 6 Sep 2006 APD Meeting

8. Courtesy of DESY High Sensitivity Instrumentation Mike McGee, 6 Sep 2006 APD Meeting

9. Courtesy of DESY Cryogenic Instrumentation Mike McGee, 6 Sep 2006 APD Meeting

10. Courtesy of DESY Baseline (Floor) Instrumentation Mike McGee, 6 Sep 2006 APD Meeting

11. Courtesy of DESY General Purpose Instrumentation Mike McGee, 6 Sep 2006 APD Meeting HS-1 Geophone HS-1 Specifications SPECIFICATION at 25°C, Geophone in designated operating position (Vertical or Horizontal) Natural Frequency (Fn)4.5 ±.75 Hz7.5 ±.75 Hz10 ± 1.0 Hz DC Coil Resistance (DCR), ohms 225 ± 13 510 ± 27 1250 ± 62225 ± 13 510 ± 27 1250 ± 62225 ± 13 510 ± 27 1250 ± 62 Sensitivity (G), ± 10% V/in/s.510.7181.15.510.7181.15.510.7181.15 Sensitivity (G), ± 10% V/cm/s.201.283.453.201.283.453.201.283.453 Open Circuit Damping (Bo), ± 20%.27.28.62.67.46.50 Damping Constant (C D )246505129533471818432515391382 Coil Mass (M), grams ± 5%2928 12.811.8 12.811.8 Maximum Tilt AngleVertical Models Horizontal Models 15° ± 2° Vertical Models Horizontal Models 20° ± 3.5° Vertical Models Horizontal Models 30° ± 7.5°

12. Courtesy of DESY Instrumentation Electronics Mike McGee, 6 Sep 2006 APD Meeting

13. Courtesy of DESY Capture Cavity 2 (Meson-Fermilab) Mike McGee, 6 Sep 2006 Measurements by C. Boffo et al. APD Meeting

14. DESY Vibration Measurements Mike McGee, 13 Jul 2006 T4CM Design Meeting #2