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LQ cable and coil HT qualifications (FNAL data) D. Turrioni on behalf of the Superconducting R&D Group LQS02 Review – October 26, 2010 1.

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Presentation on theme: "LQ cable and coil HT qualifications (FNAL data) D. Turrioni on behalf of the Superconducting R&D Group LQS02 Review – October 26, 2010 1."— Presentation transcript:

1 LQ cable and coil HT qualifications (FNAL data) D. Turrioni on behalf of the Superconducting R&D Group LQS02 Review – October 26,

2 Outline 2 For each coil we show: VI and VH results of witnesses at 4.2 K VI and VH results of witnesses at 1.9 K (not for LQ12) Then we show for all the coils together: VI and VH results for all extracted at 4.2 K VI and VH results for all extracted at 1.9 K Note: In this presentation, data on all samples are from Ti-alloy ITER barrels with extra splices and Stycast.

3 Cables and Billets CoilCableStrand Billet LQ 10LQ-B0 989R10046 LQ 11LQ-B0 990R10045 LQ 12LQ-B0 993R9560 & LQ 13LQ-B0 993R9560 &

4 LQ 10 V-I and V-H 4.2 K SampleIs[A] range 0-4TIs[A] range 4-8TIs[A] range 8-12TIc, Iq, Iq, RRP Round Ti ± ± 12.5Critical Surface259, 260,*542, 540, [52]230*Small Transition Extr.#1 989R Ti762.5 ± ± ± 12.5*,192,**, 340,*257 * Trans on the outer tap Extr.#2 989R TiNo data *, 235,**, 412,* No data * Trans on the outer tap SampleIs[A] range 0-4TIs[A] range 3-6TIs[A] 6-8TIs[A] 8-12TIc, Iq, Iq, Extr.#3 989R Ti ± ± ± 12.5Crit. Surface 274, 277, [46]572, 571, [52]234 Ic in red shows extrapolated values 4

5 LQ 10 V-I and V-H 1.9 K SampleIs[A] range 0-4TIs[A] range 4-8TIs[A] range 8-12TIc, Iq, Iq, RRP Round Ti1237.5± ± ± , 397, [49]*, 611,*230*No Transition at 12T Extr.#3 989R Ti ± ± 12.5 (4-10 T)422, 424, [41]*, 720, *234*No Transition t 12T 5

6 LQ 11 V-I and V-H 4.2 K SampleIs[A] range 0-4TIs[A] range 4-8TIs[A] range 8-12TIc, Iq, Iq, RRP #1 Round TiNo data *, 277,**, 489,*No * Trans outer tap RRP #2 Round Ti1225 ± ± 25Critical surfaceNo data592, 590, [39]280 RRP #3 Round Ti ± ± 12.5Critical surface247, 272, 15513, 522, [20]252 Extr #1 Cable 990R TiNo data 84, 175, 8184, 275, 11No Extr #2 Cable 990R Ti987.5 ± ± 12.5Critical surface212, 233, [18]419, 421, [34]No Extr #3 Cable 990R TiNo data 139, 160, 12296, 310, Extr #4 Cable 990R TiNo data 121, 194,13256, 313,

7 LQ 11 V-I and V-H 1.9 K SampleIs[A] range 0-4TIs[A] range 4-8TIs[A] range 8-12TIc, Iq, Iq, TRRRComment RRP #2 Round Ti1137.5± 12.5No dataNo Data 789, 765,*280*Small trans. Extr #2 Cable 990R Ti ± ± 25525± 25313, 322, 33557, 548, [33]No 7

8 LQ 12 V-I and V-H 4.2 K SampleIs[A] range 0-4TIs[A] range 4-8TIs[A] range 8-12TIc, Iq, Iq, RRP #1 Round Ti ± ± 12.5Critical surface286, 306, [40]583, 595, [60]No Extr #1 Cable 993R TiNo Data * 257, 266, [32]*, 454,*No * Diff Trans between outer and inner tap Extr #2 Cable 993R TiNo DataNo dataNo Data60, 184, 6144, 294, 8No Sample degraded Extr #3 Cable 993R TiNo DataNo dataNo Data257, 253, [43]542, 532, [47]No Tin leak Sample 5 T Sn leak on extracted sample #3 8

9 LQ 13 V-I and V-H 4.2 K SampleIs[A] range 0-4TIs[A] range 4-8TIs[A] range 8-12TIc, Iq, Iq, RRP #1 Round Ti ± ± 12.5Critical surface260, 277, [22]536, 538, [33]303 Extr #1 Cable 993 B 9560 Ti No Data *, 118No dataNoResistive Extr #2 Cable 993 B Ti No Data *, 237*, 409No * Trans on the outer tap Extr #3 Cable 993 B Ti 1041 ± 10 Critical surface273, 282, [36]567, 576, [41]320 9

10 LQ 13 V-I and V-H 1.9 K SampleIs[A] range 0-4TIs[A] range 4-8TIs[A] range 8-12TIc, Iq, Iq, Extr #3 Cable 993 B Ti ± ± , 432, [39]752, 762, [53]320 10

11 Extracted 4.2 K SampleIs[A] range 0-4TIs[A] range 4-8TIs[A] range 8-12TIc, Iq, Iq, LQ ± ± 12.5Critical surface212, 233, [18]419, 421, [34]No LQ 12No DataNo dataNo Data257, 253, [43]542, 532, [47]No Tin leak Sample 5 T LQ ± 10 Critical surface273, 282, [36]567, 576, [41]320 SampleIs[A] range 0-4TIs[A] range 3-6TIs[A] 6-8TIs[A] 8-12TIc, Iq, Iq, LQ ± ± ± 12.5Crit. Surface 274, 277, [46]572, 571, [52]234 11

12 Extracted 1.9 K SampleIs[A] range 0-4TIs[A] range 4-8TIs[A] range 8-12TIc, Iq, Iq, LQ ± ± 12.5 (4-10 T)422, 424, 41*, 720, *234*No Transition LQ ± ± 25525± 25313, 322, 33557, 548, [33]No LQ ± ± , 432, [39]752, 762, [53]320 12

13 LQS01-LQS02 Witness 4.2 K 13 CoilStrand BilletCableBarrelIs[A] range 0-4TIs[A] range LQ RTi812 ± ± LQ RSS912.5 ± ± LQ RTi1040 ± ± LQ RTi937.5 ± ± LQ RTi ± ± LQ RTi ± ± LQ or RTi No DataNo data542 LQ RTi 1041 ±

14 Conclusions 14 The virgin witness samples for the coils 11,12 and the extracted samples for the coils 10,13 have an Ic(12T, 4.2 K)>567 A and RRR >230. This shows that the heat treatments were successful for all four coils. Can these results be used to predict magnet performance? -LQS01 performed at 92% of the SSL predictions. -The conductor performance in LQS01 was 74% of the critical surface predicted by the witness samples (with no self-field corrections). -It was 81% of the minimum stable current, including witnesses from all coils.

15 LQS01 Witness Prediction vs. Magnet Performance 15 92%


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