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2014/3/25TTC Meeting Beam Operation Experience at Quantum Beam Project in STF Kirk.

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Presentation on theme: "2014/3/25TTC Meeting Beam Operation Experience at Quantum Beam Project in STF Kirk."— Presentation transcript:

1 2014/3/25TTC Meeting 2014@DESY1 Beam Operation Experience at Quantum Beam Project in STF Kirk

2 2014/3/25TTC Meeting 2014@DESY2 No change during “beam” operation in KEK-STF even after many earthquakes!! The answer is… MHI-12 and -13 were very stable in Quantum beam experiment

3 2014/3/25TTC Meeting 2014@DESY3 We have a few examples for change in Cryomodule test But….

4 superconducting rf test facility History of Cavity Performance in KEK-STF  Vertical Test in CW mode  Cryomodule Test in Pulsed mode

5 5STF Cavity Group Meeting (2013/5/13) Status of RF Conditioning for MHI-12 600μsec 1500μsec

6 6STF Cavity Group Meeting (2013/5/13) Status of RF Conditioning for MHI-12 1500μsec

7 7STF Cavity Group Meeting (2013/5/13) Status of RF Conditioning for MHI-12 600μsec 1500μsec

8 8STF Cavity Group Meeting (2013/5/13) Status of RF Conditioning for MHI-12 1500μsec

9 Comparison of Radiation Level History MHI-12MHI-13 The radiation level was never changed during the CM test.

10 2014/3/25TTC Meeting 2014@DESY10 Cavity performance degraded by “Earthquake” during beam operation?

11 2014/3/25TTC Meeting 2014@DESY11 dateTimeLevelOperation status Detuning direction MHI-12MHI-13 12/Oct/201213:573 Beam Tuning [RF @Cavity = ON] －－ 24/Oct/201216:052 Beam Tuning [RF @Cavity = ON] －＋ 31/Oct/201215:502 Beam Tuning [RF @cavity = 30sec. ON ⇒ RF Off (manually)] －＋ 7/Dec/201217:184 LLRF study [RF @Cavity = 60sec. ON ⇒ LV Off (I/L)] －＋ Earthquake events at KEK-STF

12 2014/3/25TTC Meeting 2014@DESY12 Log Trend in 12/Oct/2012 MHI-12MHI-13

13 2014/3/25TTC Meeting 2014@DESY13 Log Trend in 24/Oct/2012 MHI-12MHI-13

14 2014/3/25TTC Meeting 2014@DESY14 Log Trend in 31/Oct/2012 MHI-12MHI-13

15 2014/3/25TTC Meeting 2014@DESY15 Log Trend in 7/Dec/2012 MHI-12MHI-13

16 2014/3/25TTC Meeting 2014@DESY16 After these earthquakes, the cavity performance was never changed!!

17 Cavity Performance for STF-2 2014/3/25TTC Meeting 2014@DESY17

18 In future… The high power test in STF-2 will start from 2015. 2014/3/25TTC Meeting 2014@DESY18

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