DC Field Facilities 2013 and beyond

1. DC Field Facilities2013 and beyond • Scott Hannahs • NHMFL External Advisory Committee August 2010

2. Milli-Kelvin 18/20 T SC50 mm20 mK 16/18 T SC50 mm10 mK 18/20 T SC50 mm300K-.3K Cell 14 SCH / 36 T 40 mm 1 ppm 14 MW Cell 16 LCTF Cell 4 20T 195 mm 20kA Test 20 MW Cell 2 29 T 32 mm 50 ppm 18.3 MW Cell 8 35 T 32 mm 19 MW Cell 12 35 T 32 mm 19 MW Cell 10 Cryogenic System Storage Cell 3 18 T SCw/ Fast Optics Cell 7 31 T 50 mm Gradient & Modulation 18 MW Cell 13 Magnet & Power Supply Testing Cell 5 Split Coil > 25 T 32 mm 28MW Cell 1 OpticsSupport Cell 9 31 T 50 mm 18 MW Cell 15  45 T Hybrid 32 mm 31 MW Cell 11 Cryo Operators Outsert RepairUpgrade48T @ 2PS 60THybrid 32 mm?? MW 36+T 50 mm28 MW 36+T 50 mm28 MW 40+T 32 mm28 MW 40T“High Field” insert 32 mm 40+T 32 mm28 MW 30T SC50 mm10 mK 30T SC50 mm300K-.3K DC Magnets Keck Cell 6 25 T (700 GHz) 50 mm 12 ppm 18.6 MW Green identifies current status (2010) Yellow identifies status at end of current grant (2012) Red identifies future possibilities Light Blue identifies cells that may be available NHMFL External Advisory Committee August 2010

3. Field and Power @ NHMFL NHMFL External Advisory Committee August 2010

4. DC Powered Magnets Worldwide 1Power available for resistive magnets listed 2Magnet presently in development Highest Worldwide NHMFL External Advisory Committee August 2010

5. Field vs Outer Diameter and Power for 32 mm bore resistive magnets NHMFL External Advisory Committee August 2010

6. Operations Building • Alongside OPMD Even Cells • 3 Floors ~13000 SqFt • Frees Up Cells 10 and 11 • Pits for mK magnets , low vibration area for low temperature STM NHMFL External Advisory Committee August 2010

7. Visionfor the DC Field User Program • All “workhorse” resistive magnets upgraded to 28 MW {2.8M$ first, 6.4M$ for 4} 40-42 T (32 mm bore) 36-38T (50 mm bore) • Series Connected Hybrid (14 MW) – 36T high homogeneity insert {11.7 M$} • 40T high field insert for Series Connected Hybrid {1 M$} • Power supply active filter upgrade 28→32MW to replace unobtainable components and reduce ripple,Magnet Cooling pump & heat exchanger for 28/32 MW operation {2.3 M$} • Plant infrastructure upgrade/replacements, Chillers (due 2018 - freon) {$5M} • Superconducting magnet operational at 32T with 10 mK dilution refrigerator, other SC magnets being made or purchased. {5 M$ ?} • Hybrid magnet outsert being upgraded to 15 T giving 48 T total field {2 M$ ?}, 2 Power Supply Operation • Proposal for 60 T hybrid being developed {100 M$} • New “standard” instrumentation heat capacity, dilatometry, scanning probe microscopy {1 person / technique} • Standard instrumentation on “PPMS like” pucks allowing remote operation and measurements, these could be run in a 3rd shift. {1 technician + 1 control room operator} • New “Operations Building” adjacent to OPMD with low vibration area for low temp STM and magnet, pits for mK magnets, equipment and cryo storage, lab space, offices, cryo operators, and bathroom {$6M ??} as of summer 2010, mid-point in current award period