1. CM20 Meeting April 9, 2013 D.R. Dietderich, LBNL1 Insulation Status for QXF Cables D.R. Dietderich, LBNL LARP-CERN Collaboration meeting April 9, 2013 bnl – fnal – lbnl – slac US LHC Accelerator Research Program

2. CM20 Meeting April 9, 2013 D.R. Dietderich, LBNL2 Outline Status of QXF R&D –Target Thicknesses 0.125 mm or 0.150 mm per side HQ/LHQ insulation R&D experience –HQ/LHQ Target thickness 0.100 mm per side

3. CM20 Meeting April 9, 2013 D.R. Dietderich, LBNL3 NEW QXF Insulation R&D New England Wire (NEW) Target thickness 0.150 mm per side AGY S2-glass fibers (66 tex) with 933 silane sizing 2 ply fibers twisted with a pitch length of 3”. 48 carriers Braided has 15.4 P/I

4. CM20 Meeting April 9, 2013 D.R. Dietderich, LBNL4 Braid Thickness Reference pressure is 1,000 ksi ~18.2 P/I to obtain 0.150 mm ~12.4 P/I to obtain 0.125 mm R&D Results

5. CM20 Meeting April 9, 2013 D.R. Dietderich, LBNL5 New England Wire Braid on QXF Cable Flat-bed scanner image of three cables

6. CM20 Meeting April 9, 2013 D.R. Dietderich, LBNL6 Insulation 14.1 P/I Grey-scale image of the selected area

7. CM20 Meeting April 9, 2013 D.R. Dietderich, LBNL7 Number of pixel: 1028176 Number of white pixel (threshold 170): 973336 (94.67%) Number of black pixel: 54840 (5.33%)

8. CM20 Meeting April 9, 2013 D.R. Dietderich, LBNL8

9. CM20 Meeting April 9, 2013 D.R. Dietderich, LBNL9 Summary and Plans Have 0.130 mm thickness 2 ply braid may produce insulation with target thickness of 0. 125 mm and 0.150 mm with either 12.4 P/I (picks per inch) or 18.3 P/I, respectively Do not plan to make any new R&D runs for 2 to 3 months Going to focus on QXF cable R&D