1. Magnetic shields inside and outside LHe tank in S1-Global cryomodule assembly at KEK
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

2. Cryomodule-C (DESY/FNAL caviites)
Outline
Three different types of magnetic shields in S1-G
Measurements of Rres in cavity vertical tests
Summary
Cryomodule-C (DESY/FNAL caviites)
after Disassembly
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

3. Installation of Magnetic Shields in S1-Global
Outside Magnetic Shields
Outside Magnetic Shields
DESY
Cavities
FNAL
Cavities
KEK
Cavities
Inside Magnetic Shields
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

4. Magnetic Shields of DESY Cavities
10 Components per 1 DESY Cavity
For 2 DESY Cavities
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

5. Magnetic Shields of FNAL Cavities
16 Components per 1 FNAL Cavity
For 2 FNAL Cavities
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

6. Magnetic Shields of KEK Cavities
4 Components per 1 KEK Cavity
For 2 KEK Cavities
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

7. Calculation of Magnetic Fields in KEK Cavity
by N. Ohuchi (KEK)
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

8. Tests of Magnetic Fields in KEK Cavity (1)
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

9. Tests of Magnetic Fields in KEK Cavity (2)
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

10. Tests of Magnetic Fields in KEK Cavity (3)
Qo measurement by dynamic rf losses in cryomodule (STF-1)
Effect of magnetic shields
Deterioration due to
field emission
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

11. Benefits of Inside Magnetic Shields
Good shielding effect with small number
of holes/connection.
Simple structure for fabrication.
Ease of installation work.
Good accessibility for tuner repair.
Reduction of fabrication cost ?
etc.
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

12. SUMMARY There are several benefits in the inside magnetic shields.
Shielding effectiveness of the inside magnetic shield was confirmed in both the vertical tests and the cryomodule tests of the KEK cavities.
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

13. END Thank you for your attentions ! TTC meeting in Beijing
E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

14. E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

15. E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

16. E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

17. E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

18. E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

19. E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

20. E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing

21. E. KAKO (KEK) ' Dec. 07
TTC meeting in Beijing