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Performance of trim coils made by a novel method

Description: A precision, automated method of manufacturing trim coils based on printed circuit technology has been developed. Excellent quench performance and increased radiation resistance have been achieved in recently-tested models of sextupole trim coils developed for operation inside 40 mm-aperture SSC Main Collider dipoles. 6 refs., 2 figs.
Date: January 1, 1991
Creator: Wanderer, P.; Anerella, M.; Cottingham, J.; Ganetis, G.; Garber, M.; Ghosh, A. et al.
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Partner: UNT Libraries Government Documents Department
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Polarized targets and polarized low energy neutrons at WNR

Description: A description of the experimental setup used at the WNR facility to study the interaction of polarized neutrons with polarized samples is given. Planned measurements of the magnetic moments of compound nuclear resonances are discussed.
Date: January 1, 1980
Creator: Delheij, P. P. J.; Morgan, G. L. & Lisowski, P. W.
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Partner: UNT Libraries Government Documents Department
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Results of magnetic field measurements of 40 mm aperture 17-m long SSC model collider dipole magnets

Description: Magnetic field measurements have been made on twelve 17 m-long, 40 mm-aperture R D superconducting dipoles. Data on dipole field strength, multipole coefficients, and alignment have been obtained. The data indicate that the magnets as built are generally within the expectations for this design. 7 refs., 5 figs.
Date: January 1, 1991
Creator: Wanderer, P.; Anerella, M.; Cottingham, J.; Ganetis, G.; Garber, M.; Ghosh, A. et al.
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Partner: UNT Libraries Government Documents Department
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A computer program for the 2-D magnetostatic problem based on integral equations for the field of the conductors and boundary elements

Description: The iterative design of the 2-dimensional cross section of a beam transport magnet having infinitely permeable iron boundaries requires a fast means of computing the field of the conductors. Solutions in the form of series expansions are used for rectangular iron boundaries, and programs based on the method of images are used to simulate circular iron boundaries. A single procedure or program for dealing with an arbitrary iron boundary would be useful. The present program has been tested with r… more
Date: January 1, 1991
Creator: Morgan, G. H.
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Partner: UNT Libraries Government Documents Department
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Revised cross section for RHIC dipole magnets

Description: Using the experience gained in designing and building Relativistic Heavy Ion Collider (RHIC) dipole prototype magnets an improved cross section has been developed. Significant features of this design include the use of only three wedges for field shaping and wedge cross sections which are sectors of an annulus. To aid in the understanding of the actual magnets, one has been sectioned, and detailed mechanical and photographic measurements made of the wire positions. The comparison of these measu… more
Date: January 1, 1991
Creator: Thompson, P. A.; Gupta, R. C.; Kahn, S. A.; Hahn, H.; Morgan, G. H.; Wanderer, P. J. et al.
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Partner: UNT Libraries Government Documents Department
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Bending behavior of lapped plastic ehv cables

Description: One of the factors delaying the development of lapped polymeric cables has been their reputed poor bending characteristics. Complementary programs were begun at BNL several years ago to mathematically model the bending of synthetic tape cables and to develop novel plastic tapes designed to have moduli more favorable to bending. A series of bend tests was recently completed to evaluate the bending performance of several tapes developed for use in experimental superconducting cables. The program … more
Date: January 1, 1980
Creator: Morgan, G H & Muller, A C
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Partner: UNT Libraries Government Documents Department
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Integral experiments for fusion reactor design: experimentation

Description: Integral experiments that measure the energy spectra of neutrons and gamma rays due to the transport of approx. 14-MeV T(d,n)/sup 4/He neutrons through thick steel and borated polyethylene shield configurations have been performed at the Oak Ridge National Laboratory. Descriptions of the facility and experimental techniques are given along with curves showing data representative of the results.
Date: January 1, 1979
Creator: Chapman, G. T. & Morgan, G. L.
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Partner: UNT Libraries Government Documents Department
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Construction and results of the 50 mm short R D dipole magnets

Description: The first at Brookhaven National Laboratory (BNL) of the large bore, 1.8 m SSC dipoles have been built and tested. The 2-D design of the coil, using the new, wider cables and the iron cross section are reviewed and the coil ends are described. Results from tests, including quench performance, magnetic field measurements and strain-gauge data are presented. 5 refs., 4 figs., 1 tab.
Date: January 1, 1991
Creator: Morgan, G. H.; Anerella, M.; Cottingham, J.; Ganetis, G.; Garber, M.; Ghosh, A. et al.
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Partner: UNT Libraries Government Documents Department
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Neutron cross section measurements at WNR

Description: The Weapons Neutron Research Facility has been used to obtain moderate-resolution total neutron cross section data for H, C, /sup 208/Pb, /sup 232/Th, /sup 238/U, and /sup 242/Pu over the energy range 5 to 200 MeV. Neutrons were produced by bombarding a 2.5-cm diam by 15-cm long Ta target with an 800 MeV pulsed proton beam from LAMPF. A 10.2-cm diam by 15.2-cm thick NE110 proton recoil detector was used at a flight path of 32 meters, giving a time-of-flight resolution of 60 ps/m. The total cros… more
Date: January 1, 1980
Creator: Lisowski, P. W.; Archampaugh, G. F.; Moore, M. S.; Morgan, G. L. & Shamu, R. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Analysis of Ornl Fusion Reactor Shield Integral Experiments

Description: The nuclear performance of the blanket and shield in a fusion reactor will have a substantial impact on the overall operation and capital cost of the reactor. It is necessary, therefore, to have experimental verification of the nuclear data and radiation transport methods that will be used to carry out the nuclear design calculations for these assemblies. Integral experiments are being performed at the Oak Ridge National Laboratory to provide the experimental data needed for this verification. … more
Date: January 1, 1979
Creator: Santoro, R. T.; Alsmiller, R. G., Jr.; Barnes, J. M.; Chapman, G. T.; Morgan, G. L.; Oblow, E. M. et al.
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Partner: UNT Libraries Government Documents Department
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First wall and blanket design for the STARFIRE commercial tokamak power reactor

Description: The first wall and blanket design concepts being evaluated for the STARFIRE commercial tokamak reactor study are presented. The two concepts represent different approaches to the mechanical design of a tritium breeding blanket using the reference materials options. Each concept has a separate ferritic steel first wall cooled by heavy water (D/sub 2/O), and a ferritic steel blanket with solid lithium oxide breeder cooled by helium. A separate helium purge system is used in both concepts to extra… more
Date: January 1, 1979
Creator: Morgan, G. D.; Trachsel, C. A.; Cramer, B. A.; Bowers, D. A. & Smith, D. L.
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Partner: UNT Libraries Government Documents Department
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Effect of prestress on performance of a 1. 8 m SSC R D dipole

Description: A series of 1.8 SSC dipoles is being built and tested as part of the R D program. One of the 40 mm - aperture magnets was tested with a standard assembly and then reassembled and retested in a special configuration which had significantly less azimuthal prestress than the initial assembly. We report quench, coil stress, end force, and harmonics data for each of the assemblies. Quench performance was not degraded for the low-prestress assembly. 4 refs., 5 figs., 5 tabs.
Date: January 1, 1991
Creator: Wanderer, P.; Anerella, M.; Cottingham, G.; Ganetis, G.; Garber, M.; Ghosh, A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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RHIC insertion magnets

Description: The Relativistic Heavy Ion Collider (RHIC) under construction at Brookhaven National Laboratory (BNL) has six interaction regions for the colliding beam. Each interaction region is part of an insertion region consisting of several magnets. The required aperture of some of the quadrupoles and dipoles in the insertion regions is much larger than the nominal 80 mm aperture of the other magnets in the accelerator. There will be 82 quadrupole magnets having an aperture of 130 mm and a maximum operat… more
Date: January 1, 1991
Creator: Gupta, R.C.; Cottingham, J.; Ganetis, G.; Garber, M.; Ghosh, A.; Greene, A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Coil and iron design for SSC 50 mm magnet

Description: In this paper we present the design of the two dimensional coil and iron cross section, referred to as DSX201/W6733, for the 50 mm aperture dipole magnet being built at the Brookhaven National Laboratory for the Superconducting Super Collider (SSC). The computed values of the allowed field harmonics as a function of current, the quench performance predictions, the stored energy calculations, the effect of random errors on the coil placement and the Lorentz forces on the coil will be presented. … more
Date: January 1, 1990
Creator: Gupta, R. C.; Kahn, S. A. & Morgan, G. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Collarless, close-in, shaped iron aperture designs for the SSC (Superconducting Super Collider) dipole

Description: The nominal-design SSC (Superconducting Super Collider) dipole encloses the coil in an iron yoke having a circular aperture. The radial gap between the coil and the iron is about 15 mm to provide space for a strong annular collar around the coil, and also to reduce the effects of iron saturation on central field harmonics. The 15 mm gap also reduces the desirable dipole field contributed by the iron. The present paper gives a coil and aperture configuration in which the gap is reduced to 5 mm a… more
Date: January 1, 1989
Creator: Gupta, R. C. & Morgan, G. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Status of the quadrupoles for RHIC (Relativistic Heavy Ion Collider)

Description: The proposed Relativistic Heavy Ion Collider (RHIC) will require 408 regular arc quadrupoles. Two full size prototypes have been constructed and tested. The construction uses the single layer, collarless concept which has been successful in the RHIC dipoles. Both the magnets attained short sample current, which is 60% higher than the operating current. This corresponds to a gradient of 113 T/m with clear bore of 80 mm. The preliminary field measurements are in agreement with the calculations, w… more
Date: January 1, 1989
Creator: Thompson, P.A.; Cottingham, J.G.; Garber, M.; Ghosh, A.; Goodzeit, C.; Greene, A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A comparison of calculations and measurements of the field harmonics as a function of current in the SSC dipole magnets

Description: A large number of short and long superconducting dipole magnets for the Superconducting Super Collider (SSC) have been constructed and measured for their magnetic field properties at Brookhaven National Laboratory (BNL). In this paper we compare the calculations and measurements for the variation of field harmonics as a function of current in 40 mm aperture and 50 mm aperture dipole magnets. The primary purpose of this paper is to examine the iron saturation effects on the field harmonics. The … more
Date: January 1, 1991
Creator: Gupta, R. C.; Cottingham, J. G.; Kahn, S. A.; Morgan, G. H. & Wanderer, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Total cross section of /sup 242/Pu between 0. 7 and 170 MeV

Description: Various evaluations of the neutron cross sections of /sup 242/Pu lead to widely different predictions of bulk neutronics properties such as critical mass. These evaluations also show rather different behavior of the energy dependence of the total cross section. The total cross section of /sup 242/Pu from 0.7 to 170 MeV was measured to a statistical accuracy of = 0.5% below 6 MeV, using 8 g of high purity material and the WNR pulsed neutron facility. Recent evaluations by Madland and Young and b… more
Date: January 1, 1979
Creator: Moore, M. S.; Lisowski, P. W.; Morgan, G. L. & Auchampaugh, G. F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Neutron total cross section measurement at WNR. [215 to 250 MeV experimental techniques]

Description: The techniques involved in measuring fast-neutron total cross sections at the Weapons Neutron Facility (WNR) of the Los Alamos Scientific Laboratory are described. Results of total cross section measurements on natural carbon covering the range 2.5 to 250 MeV are presented. 16 references.
Date: January 1, 1979
Creator: Lisowski, P. W.; Moore, M. S.; Morgan, G. L. & Shamu, R. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Los Alamos National Laboratory neutron-neutron scattering program

Description: A theoretical and experimental program is underway to determine the feasibility of a measurement of the neutron-neutron scattering cross section of 10 to 12% uncertainty using small-angle, low center-of-mass energy, colliding neutron beams derived from a fusion-fission nuclear source. The neutron-neutron scattering length would be inferred from the measured cross sections. The general concept of the experiments and progress are discussed.
Date: January 1, 1985
Creator: Glasgow, D. W.; Moore, M. S.; Morgan, G. L.; King, N. S. P.; Alrick, K. R.; Shepard, M. L. et al.
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Partner: UNT Libraries Government Documents Department
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SSC 50 mm dipole cross section

Description: In this paper we present the magnetic design of the two dimensional coil and iron cross section, referred to as DSX201/W6733, for the 50 mm aperture main ring dipole magnet for the Superconducting Super Collider (SSC). The computed values of the allowed field harmonics as a function of current, the quench performance predictions, the stored energy calculations, the effect of random errors on the coil placement and the Lorentz forces on the coil will be presented. The yoke has been optimized to … more
Date: January 1, 1991
Creator: Gupta, R. C.; Kahn, S. A. & Morgan, G. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Experiments with all-Kapton insulation and axial prestress in 1. 8 m-long SSC R D magnets

Description: Several 1.8 m-long magnets have been built to evaluate possible variations in the design of the SSC collider dipoles. Except for length and the parameters being tested, these models have the features of 40 mm aperture collider dipoles, which are based on a two-layer cosine theta coil. In these magnets, we have tested all-Kapton cable insulation and the effects of changes in the axial coil prestress. Construction details and test results for quenching, field harmonics, and coil loading are repor… more
Date: January 1, 1991
Creator: Wanderer, P.; Anerella, M.; Cottingham, G.; Ganetis, G.; Garber, M.; Ghosh, A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Demonstration Tokamak Power Plant

Description: A conceptual design for a tokamak demonstration power plant (DEMO) was developed. A large part of the study focused on examining the key issues and identifying the R and D needs for: (1) current drive for steady-state operation, (2) impurity control and exhaust, (3) tritium breeding blanket, and (4) reactor configuration and maintenance. Impurity control and exhaust will not be covered in this paper but is discussed in another paper in these proceedings, entitled Key Issues of FED/INTOR Impurit… more
Date: January 1, 1983
Creator: Abdou, M.; Baker, C.; Brooks, J.; Ehst, D.; Mattas, R.; Smith, D. L. et al.
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Partner: UNT Libraries Government Documents Department
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Performance of initial full-length RHIC (Relativistic Heavy Ion Collider) dipoles

Description: The first four full-length (9.7 m) R and D dipoles for the proposed Relativistic Heavy Ion Collider (RHIC) have been successfully tested. The magnets reached a quench plateau of approximately 4.5 T with very reasonable training - a field level comfortably above the design field of 3.45 T required for operation with beams of 100 GeV/amu gold nuclei. Measured field multipoles are considered to be quite acceptable for this series of R and D magnets.
Date: January 1, 1987
Creator: Dahl, P.; Cottingham, J.; Garber, M.; Ghosh, A.; Goodzeit, C.; Greene, A. et al.
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Partner: UNT Libraries Government Documents Department
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