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Superconducting Magnet Systems  Chapter | 5    135







                         CCs   7  NbTi  0.73  2.3  300  37.6/38.8  86.6/89.2  35.4  14.8 × 14.8  19.2 × 19.2   steel 316LN





                            PF2, 3, 4  6  2.3  720  90.3/94.1  424.7/440.9  34.6  ∅35.4  51.9 × 51.9   steel 316LN






                                               144.5/50.5  370.5/385.1  51.9 × 51.9   steel 316LN

                            PF5  5      2.3  1152        34.5  ∅35.4
                  TABLE 5.6 Characteristics of Superconducting Cables Designed for ITER Magnets
                      Coils




                         PFCs  PF1, 6  4  NbTi  0.73  1.6  1440  229.3/238.8  366.8/382.1  34.7  ∅37.8  53.8 × 53.8 steel   316LN a The numerator shows the area of respective cable components for untwisted strands (with a cross-section normal to strand axis), and the denominator shows the area of





                                  Nb 3 Sn      154/160.8  308.6/321.5  ∅32.6  49 × 49 steel   JK2LB
                         CS    3     0.83  1.0  576      33.5






                         TFCs  2  Nb 3 Sn  0.82  1.0  900  235.3/242.6  508.3/524.0  29.7  ∅39.7  ∅43.7 steel   316LN respective cable components with a cross-section normal to cable axis.




                          Characteristics and   Parameters  1  Superconductor  Strand diameter (mm)  Strand copper/non-copper   ratio  Number of strands  Superconductor a  cross-  section (mm 2 )  Copper a  cross-section   (mm 2 )  Void fraction, (without   central channel (%))  Cable size (mm)  Jacket size (mm) and   material
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