1. 2008 MDs
Helmut Burkhardt, Rama Calaga, Wolfgang Hoefle, Riccardo de Maria, Elias Metral, Giulia Papotti, Giovanni Rumolo, Benoit Salvant, Bruno Spataro, Simon White, PSB, PS and SPS Operation teams
Many thanks for their help to: Gianluigi Arduini, Thomas Bohl, Karel Cornelis, Heiko Damerau, Simone Gilardoni, Trevor Linnecar, Django Manglunki, Rende Steerenberg, Jorg Wenninger, and the Physics coordinators.

2. Objectives of the MDs
Observe characteristics of the fast instability at injection
Learn more on the transverse impedance of the SPS

3. Setup for MDs
Beam MD1 in the SPS (single bunch, low longitudinal emittance (0.15 eVs), at injection)
Low vertical chromaticity
Measuring with
Headtail monitor
Exponential pickup
Wall current monitor
Qmeter
BCT
Tomoscope (PS and PS booster)

4. Issue with exponential pickup

5. Intensity scans

6. Intensity scan 30 sept 2008 Tune step??????
Chromaticity was probably too low
Tune step??????

7. Intensity scan 30 sept 2008

8. Unstable cycle 4611

9. High frequency noise
Hanning window around the bunch  the noise does not belong to the bunch signal

10. Fft data from exponential PU
Fft data from exponential PU (windowed)

11. Headtail monitor
Headtail monitor with comb filter

12. RF off

14. RF off
Turn by turn fft
Time domain
Turn by turn fft
With comb filter

15. To be continued…