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Atomic vapor laser isotope separation

Description: Atomic vapor laser isotope separation (AVLIS) is a general and powerful technique. A major present application to the enrichment of uranium for light-water power reactor fuel has been under development for over 10 years. In June 1985 the Department of Energy announced the selection of AVLIS as the technology to meet the nation's future need for the internationally competitive production of uranium separative work. The economic basis for this decision is considered, with an indicated of the cons… more
Date: November 8, 1985
Creator: Stern, R.C. & Paisner, J.A.
Item Type: Refine your search to only Article
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Compilation of carbon-14 data

Description: A review and critical analysis was made of the original sources of carbon-14 in the graphite moderator and reflector zones of the eight Hanford production reactors, the present physical and chemical state of the carbon-14, pathways (other than direct combustion) by which the carbon-14 could be released to the biosphere, and the maximum rate at which it might be released under circumstances which idealistically favor the release. Areas of uncertainty are noted and recommendations are made for ob… more
Date: July 8, 1985
Creator: Paasch, R. A.
Item Type: Refine your search to only Report
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Constitutional Conventions: Political and Legal Questions

Description: This report discusses the applications that have been passed by 32 of the necessary 34 State legislatures to convene a convention to propose an amendment prohibiting abortion. Because this process for amending the Constitution has never been used, several unresolved legal and policy questions arise governing the convening and the authority of such a convention.
Date: July 8, 1985
Creator: Huckabee, David C. & McCoy, Meredith
Item Type: Refine your search to only Report
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Electron and ion cyclotron heating calculations in the tandem-mirror modeling code MERTH

Description: To better understand and predict tandem-mirror experiments, we are building a comprehensive Mirror Equilibrium Radial Transport and Heating (MERTH) code. In this paper we first describe our method for developing the code. Then we report our plans for the installation of physics packages for electron- and ion-cyclotron heating of the plasma.
Date: May 8, 1985
Creator: Smith, G. R.
Item Type: Refine your search to only Article
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Large-scale shell model calculations for odd-odd nuclei and comparison to experimental studies of fission product nuclei in the /sup 132/Sn region

Description: Experimental spectroscopy data of fission products have been obtained using highly automated and rapid chemical separations followed by automated spectroscopy studies of isolated fission products. These data have established the presence of only a single level with spin-parity of 1/sup +/ below 1500 keV of excitation in Z = 51 /sup 132/Sb/sub 81/. This is in contrast to the results of our studies of /sup 130/Sb and /sup 134/I. For /sup 134/I, the N = 81 isotone with Z = 53, we can characterize … more
Date: January 8, 1985
Creator: Lane, S. M.; Henry, E. A. & Meyer, R. A.
Item Type: Refine your search to only Article
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Multivariable current control for electrically and magnetically coupled superconducting magnets

Description: Superconducting magnet systems under construction and projected for the future contain magnets that are magnetically coupled and electrically connected with shared power supplies. A change in one power supply voltage affects all of the magnet currents. A current controller for these systems must be designed as a multivariable system. The paper describes a method, based on decoupling control, for the rational design of these systems. Dynamic decoupling is achieved by cross-feedback of the measur… more
Date: February 8, 1985
Creator: Owen, E. W. & Shimer, D. W.
Item Type: Refine your search to only Article
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Multivariable current control for electrically and magnetically coupled superconducting magnets. Revision 1

Description: Superconducting magnet systems under construction and projected for the future contain magnets that are magnetically coupled and electrically connected with shared power supplies. A change in one power supply voltage affects all of the magnet currents. A current controller for these system must be designed as a multivariable system. The power describes a method, based on decoupling control, for the rational design of these systems. Dynamic decoupling is achieved by cross-feedback of the measure… more
Date: February 8, 1985
Creator: Owen, E. W. & Shimer, D. W.
Item Type: Refine your search to only Article
open access

Qualitative comparisons of fusion reactor materials for waste handling and disposal

Description: The activation of five structural materials and seven coolant/breeder/multiplier materials in a common reference neutron environment was calculated with the FORIG activation code. The reference environment was the neutron flux and spectrum at the first wall of the mirror advanced reactor study (MARS) reactor. Qualitative comparison of these activated materials were made with respect to worker protection requirements for gamma radiation in handling the materials and with respect to their classif… more
Date: April 8, 1985
Creator: Maninger, R.C.
Item Type: Refine your search to only Article
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The replacement of an electromagnetic primary sodium sampling pump in the Fast Flux Test Facility

Description: On November 16, 1984 a leak was discovered in one of the Fast Flux Test Facility (FFTF) Primary Sodium Sampling System electromagnetic pumps. The leak was discovered in the course of routine cell entry to investigate a shorted trace heat element. The purpose of this paper is to describe the circumstances surrounding the occurrence of the leak, the actions taken to replace the damaged pump and the additional steps which were necessary to return the plant to power. In addition, the processes invo… more
Date: November 8, 1985
Creator: Grygiel, M. L. & McCargar, C. G.
Item Type: Refine your search to only Article
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Role of ECRH in potential formation for tandem mirrors

Description: The axial ion plugging potential in a tandem mirror is produced by electron cyclotron resonance heating (ECRH) applied at two locations in the end mirror cell. A second harmonic (..omega.. = 2..omega../sub c/) resonance is used near the midplane to generate hot electrons which yield an electron potential barrier between center cell electrons and electrons outboard of the end cell midplane. The latter group of electrons is then heated at the fundamental resonance (..omega.. = ..omega../sub c/) o… more
Date: May 8, 1985
Creator: Rognlien, T. D.; Matsuda, Y. & Stewart, J. J.
Item Type: Refine your search to only Article
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Scientific Potential and Design Considerations for an Undulator Beam Line on Aladdin Storage Ring

Description: The unique features of undulator radiation, i.e., high photon flux and brightness, partial coherence, small beam divergence, spectral tunability, etc., mandate that undulators be included in the future plans for Aladdin. This will make it possible to perform the next generation of experiments in photon-stimulated spectroscopies. A team of scientists (see Appendix) has now been assembled to build an insertion device (ID) and the associated beam line at Aladdin. In considering the specifications … more
Date: April 8, 1985
Creator: Arko, A. J.; Bader, S. D.; Dehmer, J. L. & Kim, S. H.
Item Type: Refine your search to only Report
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Synchrotron radiation shielding for SLC alcove electronics

Description: The question has been raised concerning where to put lead shielding to reduce the synchrotron radiation dose to the electronics in the alcoves. Assuming that the alcoves are not near a collimator, the dominant radiation source is synchrotron radiation. Previous calculations indicate that a one-centimeter-thick lead door on the alcove would provide sufficient shielding. It was proposed that a one-half-inch-thick lead door be used (the next available thickness). The door would be roughly 36 squar… more
Date: March 8, 1985
Creator: McCall, R.C.; Ipe, N.E. & Shore, R.A.
Item Type: Refine your search to only Report
open access

Utilization of fission reactors for fusion engineering testing

Description: Fission reactors can be used to conduct some of the fusion nuclear engineering tests identified in the FINESSE study. To further define the advantages and disadvantages of fission testing, the technical and programmatic constraints on this type of testing are discussed here. This paper presents and discusses eight key issues affecting fission utilization. Quantitative comparisons with projected fusion operation are made to determine the technical assets and limitations of fission testing. Capab… more
Date: February 8, 1985
Creator: Deis, G. A. & Miller, L. G.
Item Type: Refine your search to only Article
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