Pulsed Field Program

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The Pulsed Field Program is located in Northern New Mexico at Los Alamos National Laboratory. The user program is designed to provide researchers with a balance of the highest research magnetic fields and robust scientific diagnostics. The connection with the DC field facility is strong and complementary in expertise. The facility's purpose is not to achieve the highest magnetic fields possible, but to create the very best research environment and to provide users with assistance from some of the world’s leading experts in science conducted in pulsed magnets. All of the user support scientists are active researchers and collaborate with multiple users per year.

The facility is located in five buildings totaling more than 75,000 square feet and featuring:

• a 1400 MVA generator to support the 60 T long pulse magnet and the 100 T multi-shot
• a 0.25 MJ, 17.5 nH, fast capacitor bank to power the single turn 300 tesla apparatus
• a 2.6 MJ capacitor bank (serves 100 tesla magnet insert coil)
• a fully multiplexed and computer-controlled 6-position, 1.6 mega-joule capacitor bank system serving four user magnets to 65 T

Ten user support scientists, specializing in pulsed magnetic field research, are on hand, as is a technician and an engineer with extensive experience in pulsed magnet development. A machine shop is fully dedicated to the Mag Lab and supported by four technicians. The 1400 MVA Generator Facility is staffed by two technicians and two engineers for support of the large magnet systems. Computer support is provided by the LANL infrastructure with multiple technicians on call. The Metallurgy and Materials Synthesis Laboratory, Superconducting Technology Center and Center for Integrated Nano-Science are available in collaborative mode. LANL Research Library is fully available.

Below please find more information on the facility's magnet systems and techniques.

Capacitor Bank-Driven Magnets

These magnets support the following research: magneto-optics (IR through UV), magnetization and magneto-transport from 350 mK to 300K; pressure from 10 kbar typical up to 100 kbar; GHz conductivity, MHz conductivity, pulse echo ultra-sound spectroscopy, magnetoconductivity and dilatometry.

Capacitor Bank-Driven Magnets Field Duration Bore 50 T Short Pulse 25 msec 24 mm 50 T Mid-Pulse 400 msec 15 mm 40 T Mid-Pulse 400 msec 24 mm 65 T Short Pulse 25 msec 15 mm 60 T Short Pulse 40 msec 9.8 mm 300 T Single Turn 6 µsec 10 mm

Generator-Driven and Multiplex Magnets

These magnets support the following research: magneto-optics (IR through UV), magnetization and magneto-transport from 350 mK to 300K; GHz conductivity, MHz conductivity, pulse echo ultra-sound spectroscopy, magnetoconductivity and heat capacity.

Generator-Driven and Multiplex Magnets Field Duration Bore 60 T Controlled Waveform 100 msec 15 mm 100 T Multi-Shot (operational to 90 T) 25 msec 15 mm

Superconducting Magnets

These magnets support the same research as pulsed fields, plus: thermal-expansion, specific heat and 20 mK to 600 K temperatures. Heat capacity, THz resistivity, magnetometry and electron paramagnetic resonance (EPR).

Superconducting Magnets Field Bore 20 T 52 mm 17 T 35 mm 15 T Mid-Pulse 52 mm 14 T - PPMS magnet

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For more information, consult the Web site for the Pulsed Field Facility at Los Alamos National Laboratory, or contact Chuck Mielke, Head of the Pulsed Field Facility Users Program, at cmielke@lanl.gov or (505) 665-1500.