1. April-20, 2015MQXF Strand :Specification choices - A. Ghosh1 MQXF Strand: Available Implementations of various Cu/No-Cu in RRP April-20, 2015 LARP-CERN Video Meeting Arup K. Ghosh (BNL)

2. April-20, 2015MQXF Strand :Specification choices - A. Ghosh2 Review of Cu/Non-Cu ratio  RRP – 108/127 84 km (Ti-Ternary design) 13 billets, 6 with Nb/Sn=3.4, 7 with Nb/Sn=3.6 Specification requirement  53 % Copper (Cu/Non-Cu > 1.12)  RRP – 132/169 55 Km (Ti-Ternary), Nb/Sn ratio 3.6 9 billets Specification requirement  52 % Copper (Cu/Non-Cu > 1.08)  RRP – 144/169 37 km (Ti-Ternary), Nb/Sn ratio 3.5 6 billets Specification requirement  50 % Copper (Cu/Non-Cu > 1.00) Exception granted:  48.7 % Copper (Cu/Non-Cu > 0.95)

3. April-20, 2015MQXF Strand :Specification choices - A. Ghosh3 RRP-108/127 AVERAGE 1.183  0.028

4. April-20, 2015MQXF Strand :Specification choices - A. Ghosh4 Nomenclature AVG:Average of data  Standard Deviation UCL:Upper Control Limit = AVG+3  LCL:Lower Control Limit= AVG-3  LSL:Lower Specification Limit

5. April-20, 2015MQXF Strand :Specification choices - A. Ghosh5 RRP-132/169 AVERAGE1.213  0.035

6. April-20, 2015MQXF Strand :Specification choices - A. Ghosh6 RRP-144/169 AVERAGE1.078  0.017

7. April-20, 2015MQXF Strand :Specification choices - A. Ghosh7 Summary of Data DesignNon-Cu %Cu/Non-Cu 3  Area Fraction SE Min Cu/Non-CuMin_Cu % 108/1270.4571.1880.0840.00421.10452% 132/1690.4511.2170.1050.00341.11253% 144/1690.4811.0790.0510.00331.02851% 144/1690.4811.0790.10.00330.97949% 144/1690.4761.1010.10.00331.00150% This can be achieved in production Area Fraction of SE (Sub-element) = Non-Cu% ÷ No. of Sub-elements 108/127 is a good option to meet Cu-Non-Cu requirements