1. STF B.L.C. #4 second Vertical Test Summary Period : 2006/09/05~09/08 Contents : ▪ Q 0 -E acc curve @ 2K&4K ▪ Q 0 &E acc time profile @ 2K&4K ▪ Summary of RF Conditioning ▪ Experimental Log ▪ Sensor data @ 2K&4K ▪ After the Vertical Test… ▪ About Inspection of Cavity Inside ▪ Summary 2006/09/15 Kirk

2. Q 0 -E acc Curve @ 2K for this measurement π mode only ! 14.1MV/m

3. Q 0 -E acc Curve @ 2K&4K for all measurements 7.0MV/m 17.1MV/m 16.3MV/m π mode only ! 6.8MV/m 14.1MV/m

4. Q 0 &E acc time profile @ 4K

5. Q 0 &E acc time profile @ 2K π 8π/9 7π/9 π 6π/9 5π/9 4π/9 π 3π/9 8π/9

6. Q 0 &E acc time profile @ 2K π 8π/9 7π/9 π 6π/9 5π/9 4π/9 3π/9 π

7. Summary of RF Conditioning dateTemp. [K]Total time [h:m]π mode only [h:m]Max. E acc [MV/m] 9/524:032:0014.1 9/624:171:5014.0 9/724:021:0014.1 9/840:35 6.8 9/825:05 14.0 ~10:00 (π mode only) @2K

8. Experimental Log @ 2006/09/04 9/04 16:40Cavity installation into the cryostat 17:00~Vacuum evacuation for the cryostat 17:17Dewar valve open Cool down start 21:05Cavity temp. 3.9K

9. Experimental Log @ 2006/09/05 9/05 10:401000ℓ dewar exchange 11:10Pass-band measurement 12:20cable correction 14:27calibration for RF diode :30standard data take @ 4.2K (over-coupled) f 0 =1299.628387[MHz], τ=28.8[msec] :34standard data take @ 4.2K (under-coupled) f 0 =1299.628396[MHz], τ=29.6[msec] :41decompression start 15:10We found that the helium pressure data had been mistaken. 18:00decompression finish R s =14.26[nΩ] :082K Run start :21electron detected @ 8.1[MV/m] :32X-ray emission start @ 11.0[MV/m] :44Quench @ 14.0[MV/m] ⇒ self-pulse mode :47Quench @ 14.1[MV/m] ⇒ self-pulse mode 19:03Quench @ 14.1[MV/m] ⇒ self-pulse mode :32Mode change (π ⇒ 8π/9 mode, f 0 =1298.8097[MHz]) :48Quench @ 16.0[MV/m] ⇒ self-pulse mode 20:22Mode change (8π/9 ⇒ π mode, f 0 =1299.625826[MHz]) :26Quench @ 14.1[MV/m] :28self-pulse mode 21:01Mode change (π ⇒ 4π/9 mode, f 0 =1283.780077[MHz]) :11Quench @ 9.1[MV/m] :13Quench @ 9.9[MV/m]

10. Experimental Log @ 2006/09/05 (cont.) 9/05 21:44Mode change (4π/9 ⇒ 3π/9 mode, f 0 =1279.3863[MHz]) :52Quench @ 10.1[MV/m] :56Quench @ 12.1[MV/m] :58Quench @ 12.4[MV/m] ⇒ self-pulse mode 22:11Test was finished

11. Experimental Log @ 2006/09/06 9/06 9:43He transfer start 10:52He transfer stop 11:08decompression start 16:45RF Amp. On Set the concrete shielding 17:002K Run start :43Quench @ 13.0[MV/m] 18:50Mode change (π ⇒ 4π/9 mode, f 0 =1283.780077[MHz]) self-pulse mode 19:13Mode change (4π/9 ⇒ 7π/9 mode, f 0 =1296.4077[MHz]) :32Quench @ 14.1[MV/m] :36Quench @ 15.2[MV/m] 20:36Mode change (7π/9 ⇒ 6π/9 mode, f 0 =1292.7807[MHz]) :46Quench @ 14.3[MV/m] :48electron detected self-pulse mode :58Mode change (6π/9 ⇒ 5π/9 mode, f 0 =1288.3891[MHz]) 21:00electron detected :02Quench @ 12.1[MV/m] :03Quench @ 12.8[MV/m] self-pulse mode :17Mode change (5π/9 ⇒ 8π/9 mode, f 0 =1298.8094[MHz]) self-pulse mode Test was finished

12. Experimental Log @ 2006/09/07 9/07 9:35Dewar exchanged 10:30He transfer start 12:00decompression start 15:10decompression stop :20RF On 2K Run start :42Quench @ 14.0[MV/m] ⇒ self-pulse mode 16:00Mode change (π ⇒ 8π/9 mode, f 0 =1298.8094[MHz]) :04Quench @ 16.6[MV/m] ⇒ self-pulse mode :21Mode change (8π/9 ⇒ 7π/9 mode, f 0 =1296.4077[MHz]) :27Quench @ 15.2[MV/m] ⇒ self-pulse mode :50Mode change (7π/9 ⇒ 6π/9 mode, f 0 =1292.7807[MHz]) :53Quench @ 14.6[MV/m] ⇒ self-pulse mode 17:17Mode change (6π/9 ⇒ 5π/9 mode, f 0 =1288.3891[MHz]) :20Quench @ 12.6[MV/m] ⇒ self-pulse mode :48Mode change (5π/9 ⇒ 4π/9 mode, f 0 =1283.780[MHz]) :50Quench @ 7.5[MV/m] ⇒ self-pulse mode :52Quench @ 9.9[MV/m] ⇒ self-pulse mode 18:29Mode change (4π/9 ⇒ 3π/9 mode, f 0 =1279.3861[MHz]) :31Quench @ 12.4[MV/m] ⇒ self-pulse mode :59Mode change (3π/9 ⇒ π mode, f 0 =1299.6258[MHz]) Quench @ 14.0[MV/m] ⇒ self-pulse mode 19:28Test was finished

13. Experimental Log @ 2006/09/08 9/08 9:25He transfer start 10:18He transfer stop :30RF On :504K Run start 11:03Quench @ 6.1[MV/m] :10Quench @ 6.8[MV/m] :17Quench @ 6.8[MV/m] RF Off decompression start 14:35decompression stop 15:092K Run start :31Quench @ 14.0[MV/m] self-pulse mode 20:14Test was finished

14. Experimental Log @ 2006/09/09 9/09 9:35Warm-up start 12:52Warm-up finish

15. E pk per cell cellπ8π/97π/96π/95π/94π/93π/9 1 & 914.116.515.214.712.89.912.4 2 & 814.114.78.00.8.713.024.8 3 & 714.110.93.014.715.04.712.4 4 & 614.16.111.714.72.514.412.4 514.10.16.30.15.90.24.8 unit : [MV/m]

16. Sensor Position in this measurement Cell #4 HOM #1 tip weld

17. Heating Spot @4K detected by Carbon Resistor Around cells Cell #1 had the heating spot at 4K.

18. Heating Spot @2K detected by Carbon Resistor Around cells π 8π/9 7π/9 π 6π/9 5π/9 4π/9 3π/9

19. Heating Spot @2K detected by Carbon Resistor Around #4 cell π 8π/9 7π/9 π 6π/9 5π/9 4π/9 3π/9 Cell #4 APD 45mm

20. Heating Spot @2K detected by Carbon Resistor Around cells ππ