1. HQM01 Test Summary Outline -Magnet Instrumentation and Shim System -SG Data -Short Sample Limits -Quench Training at 4.6 K and 2.2 K -Ramp rate and Temperature dependence study -Protection heater and MIITs study -RRR measurements -Splice resistance measurements

2. HQ coil test in a mirror structure Coil #12: 0.8-mm Nb 3 Sn 54/61 design, 1-mil Stainless Steel core Strain Gauges: azimuthal and axial gauges on the Platinum pole, azimuthal gauges on the upper and lower skins, axial gauges on the bullets 2 protection heaters and10 voltage taps on each coil layer PC board based quench antenna (4 boards distributed evenly with 30 cm spacing) TQM HQM

3. HQM01 Shim system breakdown (warm): +1050 um coil oversize + 50 um 2 mil extra ground wrap at midplane + 35 um from 50um extra radial ground wrap +178 um from 250um extra kapton on shell +475 for 19 mil kapton shim at midplane -1000 um G-10 shim undersize (.143 vs..183 mils) -357 um effective midplane shim reduction from 500 um above control spacer = 431 um Total midplane “gap” size HQM01 Shim System Illustration R. Bossert

4. Final pressing of HQM01 with coil #12 R. Bossert

5. Strain Gauge Data: cool down Coil Axial SG Coil Azimuthal SG Pre-stress changed from -122 to 0 MPa

6. Strain Gauge Data: cool down Shell Azimuthal SG at 60 deg. Shell Azimuthal SG at 90 deg. LE view Lower half Upper half 60 90 60

7. Strain Gauge Data: cool down Bullets at LE Bullets at RE

8. Strain Gauge Data: Excitation Coil Azimuthal SG Coil Axial SG Quench current 14645 A at 4.6 K

9. Strain Gauge Data: Excitation Quench current 14645 A at 4.6 K Shell Azimuthal SG at 60 deg. Shell Azimuthal SG at 90 deg.

10. Strain Gauge Data: Excitation Quench current 14645 A at 4.6 K Bullets at LE Bullets at RE

11. Strain Gauge Data: warm up Coil Axial SG Coil Azimuthal SG From 0 to -122 MPa

12. Strain Gauge Data: warm up Shell Azimuthal SG at 60 deg. Shell Azimuthal SG at 90 deg. LE view Lower half Upper half 60 90 60

13. Strain Gauge Data: warm up Bullets at LE Bullets at RE

14. HQM01 SSL SSL estimates are preliminary: correct coverage of iron ends and shape of iron insert in the magnet center SSL: 17.8 kA at 4.6 K

15. HQ coil voltage taps (inner layer) Pos. Lead

16. HQM01 Quench History Maximum quench current4.6 K: 14645 A (82% of SSL) 2.2 K: 15370 A

17. HQM01 Quench Locations 4.6 K 2.5 K 4.6 K 2.2 K

18. Quench History at 4.6 K 150 A/s 20 A/s 100 A/s Quenches in pole turn block

19. HQM01 ramp rate dependence

20. Ramp rate dependence in HQM01 & HQ01

21. Quenches in mid-plane segment A3_A4 A2_A3

22. RRR measurements Average RRR ~ 300

23. Splice measurements 0.2-0.3 nOhm

24. MIITs study Dump delay 1000 ms 15-Ohm dump resistor Peak power density 30 W/cm 2

25. MIITs study 15-Ohm dump resistor

26. PH tests

27. Holding quenches At 2.2 K (maximum quench current 15.4 kA) Holding 14600 A for 10 min at 2.2 K At 4.6 K (maximum quench current 14.7 kA) Holding 14400 A for 20 sec Several quenches when approaching the target current Holding 13800 A for 10 min at 4.6 K

28. Backup Slides

29. HQM01 magnetic flux and load lines HQ mirror cross-section with flux density distribution at 20.3 kA TD-09-008