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in creator/contributor: "SCHNEIDER-MUNTAU,H.J."

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A 30-T pulsed magnet suitable for neutron scattering experiments

We describe a conceptual design for a 30-T vertical-field split-pair magnet suitable for neutron scattering studies. While the magnet is primarily intended for diffraction and spectroscopic studies using a pulsed neutron source, it might also have application for relaxational studies,at steady-state sources. The magnet will have a 5-cm bore for sample environment equipment, a 1-cm gap for the neutrons to illuminate the sample and through which to observe the scattering. It will run with a repet… more

Date: July 1, 1995

Creator: Robinson, R. A.; Boenig, H. J.; Eyssa, Y. M. & Schneider-Muntau, H. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Proposal for a 30-T pulsed magnet suitable for neutron scattering experiments

We describe a conceptual design for a 30-T vertical-field split-pair magnet suitable for neutron scattering studies. While the magnet is primarily intended for diffraction and spectroscopic studies using a pulsed neutron source, it might also have application for relaxational studies at steady-state sources. The magnet will have a 5-cm bore for sample environment equipment, a 1-cm gap for the neutrons to illuminate the sample and through which to observe the scattering. It will run with a repet… more

Date: December 1, 1995

Creator: Robinson, R. A.; Boenig, H. J.; Eyssa, Y. M. & Schneider-Muntau, H. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Design of a Large Bore 60-T Pulse Magnet for Sandia National Laboratories

The design of a new pulsed magnet system for the generation of intense electron beams is presented. Determined by the required magnetic field profile along the axis, the magnet system consists of two coils (Coil No.1 and No.2) separated by a 32-mm axial gap. Each coil is energized independently. Both coils are internally reinforced with HIM Zylon fiber/epoxy composite. Coil No.1 made with AI-15 Glidcop wire has a bore of 110-mm diameter and is 200-mm long; it is energized by a 1.3-MJ, 13-kV cap… more

Date: September 23, 1999

Creator: Lesch, B.; Li, L.; Pernambuco-Wise, P.; Rovang, Dean C. & Schneider-Muntau, H. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

{open_quotes}High magnetic fields in the USA{close_quotes}

During the past thirty years research using high magnetic fields has technically evolved in the manner, but not the magnitude, of the so-called big science areas of particle physics, plasma physics, neutron scattering, synchrotron light scattering, and astronomy. Starting from the laboratories of individual researchers it moved to a few larger universities, then to centralized national facilities with research and maintenance staffs, and, finally, to joint international ventures to build unique… more

Date: November 1, 1994

Creator: Campbell, L. J.; Parkin, D. M.; Crow, J. E.; Schneider-Muntau, H. J. & Sullivan, N. S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Pulsed field magnets at the United States National High Magnetic Field Laboratory

The pulsed field facility of the National High Magnetic Field Laboratory (NHMFL) consists of four components. Now available are (1) explosive driven flux compression, (2) capacitor-driven magnets, and (3) a 20 T superconducting magnet. The fourth component, a 60 T quasi-continuous magnet, has been designed and is scheduled for installation in early 1995. All magnets have He-4 cryostats giving temperatures from room temperature (RT) to 2.2--1.5 K. Dilution refrigerators for the superconducting 2… more

Date: November 1, 1993

Creator: Campbell, L. J.; Parkin, D. M.; Crow, J. E.; Schneider-Muntau, H. J. & Sullivan, N. S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Status of the NHMFL 60 tesla quasi-continuous magnet

All components of the National High Magnetic Field Laboratory`s (NHMFL) 60 T quasi-continuous magnet are now under construction, with complete delivery and installation expected in early 1996. This research magnet has a cold bore of 32 mm and will produce a constant 60 tesla for 100 ms plus a wide variety of other pulse shapes such as linear ramps, steps, crowbar decays, and longer flat-tops at lower fields. Fabrication and testing of prototype coils are described along with the layout, constru… more

Date: July 1, 1995

Creator: Campbell, L. J.; Boenig, H. J.; Rickel, D. G.; Schilig, J. B.; Sims, J. R. & Schneider-Muntau, H. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The National High Magnetic Field Laboratory, A user facility in support of research in high magnetic fields

The National High Magnetic Field Laboratory (NHMFL) develops and operates high magnetic field facilities at its main location at Florida State University, Tallahassee, as well as a pulsed magnetic field facility at Los Alamos National Laboratory. A number of specialized facilities are also available to collaborators at the University of Florida for research at ultra-low temperatures, advanced magnetic resonance imaging, and materials sciences. The NHMFL is supported by the United States Nationa… more

Date: September 1, 1993

Creator: Crow, J. E.; Schneider-Muntau, H. J.; Parkin, D. & Sullivan, N. S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Completion of the US NHMFL 60 T quasi-continuous magnet

This is a technical summary report of the 60 T controlled power research magnet that was designed, assembled, installed and recently commissioned at the National High Magnetic Field Laboratory (NHMFL) Pulsed Field Facility at Los Alamos National Laboratory. The magnet is a innovative in its design, construction, size, operation and power supply. The magnet consists of nine nested, mechanically independent, free standing coils, each of which is enclosed by a steel reinforcing shell. Using inerti… more

Date: October 1997

Creator: Sims, J. R.; Boenig, H. J.; Campbell, L. J.; Rickel, D. G.; Rogers, J. D.; Schillig, J. B. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The NHMFL 60 tesla, 100 millisecond pulsed magnet

Among the new facilities to be offered by the National Science Foundation through the National High Magnetic Field Laboratory (NHMFL) are pulsed fields that can only be achieved at a national user facility by virtue of their strength, duration, and volume. In particular, a 44 mm bore pulsed magnet giving a 60 tesla field for 100 ms is in the final design stage. This magnet will be powered by a 1.4 GW motor-generator at Los Alamos and is an important step toward proving design principles that wi… more

Date: November 9, 1992

Creator: Boenig, H. J.; Campbell, L. J.; Rickel, D. G.; Rogers, J. D.; Schillig, J. B.; Sims, J. R. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

25--30 T water cooled pulse magnet concept for neutron scattering experiment

The Manuel Lujan Jr. Neutron Scattering Center, Los Alamos National Laboratory is in need of a high field, split-pair, pulse magnet that would provide a 25--30 T field in a 25 mm bore and 10 mm split gap for 2--4 ms at a repetition rate of 2 Hz. Single stack Bitter magnets of this type providing less than 20 T vertical field in the split gap have been constructed before. To produce higher fields, there is a need to use a multiple layer coil with internal reinforcement. The magnet should withsta… more

Date: December 31, 1997

Creator: Eyssa, Y. M.; Walsh, R. P.; Miller, J. R.; Pernambuco-Wise, P.; Bird, M. D.; Schneider-Muntau, H. J. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The US 100 T magnet project

A design is presented of a 100 T research magnet to generate high field pulses having lengths of more than 20 ms at field levels of above 80 T. The magnet is designed to be non-destructive, have a bore of 24 mm and a repetition rate of less than one hour. It consists of a 50 T outsert magnet, constructed of five concentric, mechanically independent coils, powered from a motor-generator, and a self-supporting 50 T insert magnet, which is energized from a capacitor bank. The design is based on co… more

Date: August 1, 1994

Creator: Campbell, L. J.; Parkin, D. M.; Rickel, D. G.; Schillig, J. B.; Eyssa, Y.; Gilmore, P. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Design and preliminary test results of the 40 MW power supply at the National High Magnetic Field Laboratory

Four highly stabilized, steady-state, 10 MW power supplies have been installed at the National High Magnetic Field Laboratory in Tallahassee, FL. Each supply consists of a 12.5 kV vacuum circuit breaker, two three-winding, step-down transformers, a 24-pulse rectifier with interphase reactors and freewheeling diodes, and a passive and an active filter. Two different transformer tap settings allow dc supply output voltages of 400 and 500 V. The rated current of a supply is 17 kA and each supply h… more

Date: November 1, 1993

Creator: Boenig, H. J.; Bogdan, F.; Morris, G. C.; Ferner, J. A.; Schneider-Muntau, H. J.; Rumrill, R. H. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Design and analysis of high-field quasi-continuous magnets

Pulsed magnets of 60 tesla or more with a flat-top of 100 ms (quasi-continuous) are among the user facilities to be provided by the NHMFL. The design of such magnets is constrained by available materials and thermal recycle time. The design path discussed here tailors materials and current densities or independent concentric coils. The progressive design steps are Illustrated by a specific example of an eight-coil, 60T magnet. In the preliminary design stage closed form calculations of magnetic… more

Date: October 1, 1993

Creator: Boenig, H. J.; Campbell, L. J.; Rickel, D. G.; Rogers, J. D.; Schillig, J. B.; Sims, J. R. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Poly-coil design for a 60 tesla quasi-stationary magnet

Among the new facilities to be offered by the National Science Foundation through the National High Magnetic Field Laboratory (NHMFL) are pulsed fields that can only be achieved at a national user facility by virtue of their strength, duration, and volume. In particular, a 44 mm bore pulsed magnet giving a 60 tesla field for 1 00 ms is in the final design stage. This magnet will be powered by a 1.4 GW motor-generator at Los Alamos and is an important step toward proving design principles that w… more

Date: February 1, 1993

Creator: Boenig, H. J.; Campbell, L. J.; Hodgdon, M. L.; Lopez, E. A.; Rickel, D. G.; Rogers, J. D. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The NHMFL 60 tesla, 100 millisecond pulsed magnet

Date: November 9, 1992

Creator: Boenig, H. J.; Campbell, L. J.; Rickel, D. G.; Rogers, J. D.; Schillig, J. B.; Sims, J. R. (Los Alamos National Lab., NM (United States)) et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Poly-coil design for a 60 tesla quasi-stationary magnet

Among the new facilities to be offered by the National Science Foundation through the National High Magnetic Field Laboratory (NHMFL) are pulsed fields that can only be achieved at a national user facility by virtue of their strength, duration, and volume. In particular, a 44 mm bore pulsed magnet giving a 60 tesla field for 1 00 ms is in the final design stage. This magnet will be powered by a 1.4 GW motor-generator at Los Alamos and is an important step toward proving design principles that w… more

Date: January 1, 1993

Creator: Boenig, H. J.; Campbell, L. J.; Hodgdon, M. L.; Lopez, E. A.; Rickel, D. G.; Rogers, J. D. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department