This note is mainly about the offline corrections for the target polarization measurements of E-960. For the sake of minimizing the number of separate documents, I have also included my recent thoughts about the target constant, in Sec. 6. The E-960 data-taking was done in two separate runs. With respect to having an operative NMR system, the runs dated from 27-AUG-87 to 10-DEC-87 and from 14-AUG-88 to 6-OCT-88.These runs will be referred to as the ``1987`` and ``1988`` runs, respectively. Because of the press of intervening projects, I have been unable until now to give my attention to the 1988 run of E-960. The information developed below in Secs. 3--5 is the result of my (belated) attempt to do so. A draft memo dated January 4, 1988 was previously distributed, which concerned the polarization correction factors for the 1987 run. I have reproduced the material from that memo in Sec. 2, for the sake of completeness. Also, since the analysis of the 1988 run has raised some questions about the appropriateness of the older analysis, I have augmented the material from that memo with some of the background observations and calculations that underlay its conclusions, to facilitate a comparison of …

This note is mainly about the offline corrections for the target polarization measurements of E-960. For the sake of minimizing the number of separate documents, I have also included my recent thoughts about the target constant, in Sec. 6. The E-960 data-taking was done in two separate runs. With respect to having an operative NMR system, the runs dated from 27-AUG-87 to 10-DEC-87 and from 14-AUG-88 to 6-OCT-88.These runs will be referred to as the 1987'' and 1988'' runs, respectively. Because of the press of intervening projects, I have been unable until now to give my attention to the 1988 run of E-960. The information developed below in Secs. 3--5 is the result of my (belated) attempt to do so. A draft memo dated January 4, 1988 was previously distributed, which concerned the polarization correction factors for the 1987 run. I have reproduced the material from that memo in Sec. 2, for the sake of completeness. Also, since the analysis of the 1988 run has raised some questions about the appropriateness of the older analysis, I have augmented the material from that memo with some of the background observations and calculations that underlay its conclusions, to facilitate a comparison of …

The purpose of this paper is to give an overview of the work of the High Performance Fortran Forum (HPFF). This group of industry, academic, and user representatives has been meeting to define a set of extensions for Fortran dedicated to the special problems posed by a very high performance computers, especially the new generation of parallel computers. The paper describes the HPFF effort and its goals and gives a brief description of the functionality of High Performance Fortran (HPF).

Spin physics activities at medium and high energies became significantly active when polarized targets and polarized beams became accessible for hadron-hadron scattering experiments. My overview of spin physics will be inclined to the study of strong interaction using facilities at Argonne ZGS, Brookhaven AGS (including RHIC), CERN, Fermilab, LAMPF, an SATURNE. In 1960 accelerator physicists had already been convinced that the ZGS could be unique in accelerating a polarized beam; polarized beams were being accelerated through linear accelerators elsewhere at that time. However, there was much concern about going ahead with the construction of a polarized beam because (i) the source intensity was not high enough to accelerate in the accelerator, (ii) the use of the accelerator would be limited to only polarized-beam physics, that is, proton-proton interaction, and (iii) p-p elastic scattering was not the most popular topic in high-energy physics. In fact, within spin physics, [pi]-nucleon physics looked attractive, since the determination of spin and parity of possible [pi]p resonances attracted much attention. To proceed we needed more data beside total cross sections and elastic differential cross sections; measurements of polarization and other parameters were urgently needed. Polarization measurements had traditionally been performed by analyzing the spin of …

During the period 7/9/92-10/8/92 a total of 80 samples (30 DOE Sample Bank samples and 50 other Penn State samples) of various sizes, not including DECS-17, were distributed. Fifteen of these samples were provided to DOE contractors. Six orders for a total of 80 30-gram bags of DECS-17 have been filled. All of these bags have been distributed to DOE dispersed catalyst contractors or those approved by DOE to receive the samples. A total of 188 data printouts were distributed. In addition, 15 special data requests were fulfilled by either search/sort and printout or creation of a data disk, resulting in distribution of limited information on over 1089 samples. Several preliminary requests for Sample Bank and Data Base information and price quotations have also been handled.

During the period 7/9/92-10/8/92 a total of 80 samples (30 DOE Sample Bank samples and 50 other Penn State samples) of various sizes, not including DECS-17, were distributed. Fifteen of these samples were provided to DOE contractors. Six orders for a total of 80 30-gram bags of DECS-17 have been filled. All of these bags have been distributed to DOE dispersed catalyst contractors or those approved by DOE to receive the samples. A total of 188 data printouts were distributed. In addition, 15 special data requests were fulfilled by either search/sort and printout or creation of a data disk, resulting in distribution of limited information on over 1089 samples. Several preliminary requests for Sample Bank and Data Base information and price quotations have also been handled.

High Efficiency Mist Eliminators (HEME) and High Efficiency Particulate Airfilters (HEPA) are to be used in the Defense Waste Processing Facility (DWPF) at the Savannah River Plant to remove volatile and semi-volatile effluents from the off-gases generated during the vitrification process. When removed, these filters are likely to contain radioactive contaminants, organics, and hazardous materials, which make their disposal by normal methods impractical. Hence, an alternative disposal method is needed. The alternative disposal method evaluated in this study is dissolution of the filters with caustic and acid solutions. Dissolution converts the waste into an aqueous stream, which can be transferred to the Tank Farm and disposed of by normal means. This process was shown to be effective on a small scale in earlier studies, but the results were not well documented and the studies were not performed on fouled filters.

High Efficiency Mist Eliminators (HEME) and High Efficiency Particulate Airfilters (HEPA) are to be used in the Defense Waste Processing Facility (DWPF) at the Savannah River Plant to remove volatile and semi-volatile effluents from the off-gases generated during the vitrification process. When removed, these filters are likely to contain radioactive contaminants, organics, and hazardous materials, which make their disposal by normal methods impractical. Hence, an alternative disposal method is needed. The alternative disposal method evaluated in this study is dissolution of the filters with caustic and acid solutions. Dissolution converts the waste into an aqueous stream, which can be transferred to the Tank Farm and disposed of by normal means. This process was shown to be effective on a small scale in earlier studies, but the results were not well documented and the studies were not performed on fouled filters.

Problems involved in obtaining the results from a program for user testing of 150 solar cookers in Haitian villages since the coup are detailed.

Problems involved in obtaining the results from a program for user testing of 150 solar cookers in Haitian villages since the coup are detailed.

This article addresses the Ginzburg-Landau (GL) model for high-temperature superconductivity in thin films (two-dimensional periodic domains). A new gauge is defined to reduce the coupling between the equations for the nonzero components of the vector potential. The GL equations are written in a novel form by means of continuous link variables; this form is symmetric and has particular advantages for numerical analysis. The continuous GL model is approximated by a discrete model, which is shown to be second-order accurate. Two methods are used for the numerical solution of the discrete model - a modified Newton`s method, in combination with a sweeping algorithm for the solution of the linear system, and a time-like integration method based on gradient flow. Numerical experiments demonstrate that the discrete GL model leads to asymmetric solutions in the plane; symmetry is recovered only in the limit as the mesh size goes to zero. The results of computational experiments to find the upper critical field and establish an empirical power law for vortex interactions are given.

The aim of the research project is to explore what can be learned about turbulence from the theoretical and computational viewpoints, using the dynamical systems approach to turbulence.

The aim of the research project is to explore what can be learned about turbulence from the theoretical and computational viewpoints, using the dynamical systems approach to turbulence.

This report summarizes the results of work performed in the development and proof-of-concept (POC) testing of a coal-fired space heating system for the commercial market sector. The objective of this program is to design, build and test a coal based heating system for this sector and determine the economic viability and market potential for the system. Coal water slurry (CWS) fuel has been chosen as the fuel form for this development effort. CWS eliminates the need to use dry pulverized coal with its attendant handling, metering and dusting problems as well as its explosive potential. Equally important in selecting a fuel form is the impact on emission levels and pollution control equipment requirements. CWS is amenable to coal washing since coal cleaning technologies are generally water-based processes requiring the fine grinding of the coal. In the first stage. an overall system heat balance was prepared, system components were designed and manufactured or purchased, the system was fully assembled and preliminary testing performed to validate component performance and identify key operating variables. In the second stage the system was operated for prolonged periods to simulate a commercial application, and combustion and thermal efficiencies; tendencies to slag, foul, erode and corrode; and …

External dosimetry needs at the four Martin Marietta Energy Systems facilities are served by Energy Systems Centralized External Dosimetry System (CEDS). The CEDS is a four plant program with four dosimeter distribution centers and two dosimeter processing centers. Each plant has its own distribution center, while processing centers are located at ORNL and the Y-12 Plant. The program has been granted accreditation by the Department of Energy Laboratory Accreditation Program (DOELAP). The CEDS is a TLD based system which is responsible for whole-body beta-gamma, neutron, and extremity monitoring. Beta-gamma monitoring is performed using the Harshaw/Solon Technologies model 8805 dosimeter. Effective October 1, 1992 the standard silver mylar has been replaced with an Avery mylar foil blackened on the underside with ink. This was done in an effort to reduce the number of light induced suspect readings. At this time we have little operational experience with the new blackened mylars-The CEDS neutron dosimeter is the Harshaw model 8806B. This card/holder configuration contains two TLD-600/TLD-700 chip pairs; one pair is located beneath a cadmium filter and one pair is located beneath a plastic filter. In routine personnel monitoring the CEDS neutron dosimeter is always paired with a CEDS beta-gamma dosimeter.The CEDS extremity …

Permanent magnets that are levitated and rotating over a bulk high-temperature superconductor (HTS) form the basis of many superconducting bearing designs. Experiments have shown that the rotational-loss coefficient of friction'' for thrust bearings of this type can be as low as 8 [times] 10[sup [minus]6]. While the loss mechanisms of such bearings are not well understood, the azimuthal homogeneity of the rotating permanent magnet is believed to play an important role in determining the loss. One possible loss mechanism is magnetic hysteresis in the HTS, where the energy loss E per cycle is derived from the critical state model and given by E = K ([Delta]B[sup 3]/J[sub c]) where K is a geometric coefficient, [Delta]B is the variation in magnetic field at the surface of the HTS experienced during a rotation of the levitated magnet, and J[sub c] is the critical current density of the HTS. It is clear that a small decrease in [Delta]B (i.e., decreasing the azimuthal inhomogeneity of the rotating magnetic field) could have profound effects on decreasing E and the rotational coefficient of friction. The role of [Delta]B is also expected to be significant in reducing losses from eddy currents and other mechanisms. Low rotational losses …

Permanent magnets that are levitated and rotating over a bulk high-temperature superconductor (HTS) form the basis of many superconducting bearing designs. Experiments have shown that the rotational-loss``coefficient of friction`` for thrust bearings of this type can be as low as 8 {times} 10{sup {minus}6}. While the loss mechanisms of such bearings are not well understood, the azimuthal homogeneity of the rotating permanent magnet is believed to play an important role in determining the loss. One possible loss mechanism is magnetic hysteresis in the HTS, where the energy loss E per cycle is derived from the critical state model and given by E = K ({Delta}B{sup 3}/J{sub c}) where K is a geometric coefficient, {Delta}B is the variation in magnetic field at the surface of the HTS experienced during a rotation of the levitated magnet, and J{sub c} is the critical current density of the HTS. It is clear that a small decrease in {Delta}B (i.e., decreasing the azimuthal inhomogeneity of the rotating magnetic field) could have profound effects on decreasing E and the rotational coefficient of friction. The role of {Delta}B is also expected to be significant in reducing losses from eddy currents and other mechanisms. Low rotational losses in …

Mining regions are a cause of concern for monitoring of nuclear test ban treaties because they present the opportunity for clandestine nuclear tests (i.e. decoupled explosions). Mining operations are often characterized by high seismicity rates and can provide the cover for excavating voids for decoupling. Chemical explosions (seemingly as part of normal mining activities) can be used to complicate the signals from a simultaneous decoupled nuclear explosion. Thus, most concern about mines has dealt with the issue of missed violations to a test ban treaty. In this study, we raise the diplomatic concern of false alarms associated with mining activities. Numerous reports and papers have been published about anomalous seismicity associated with mining activities. As part of a large discrimination study in the western US (Taylor et al., 1989), we had one earthquake that was consistently classified as an explosion. The magnitude 3.5 disturbance occurred on May 14, 1981 and was conspicuous in its lack of Love waves, relative lack of high- frequency energy, low Lg/Pg ratio, and high m{sub b} {minus} M{sub s}. A moment-tensor solution by Patton and Zandt (1991) indicated the event had a large implosional component. The event occurred in the Gentry Mountain coal mining region …

This Quality Assurance Program Plan (QAPP)describes how the Thermionic Space Nuclear Power System Design and Technology Demonstration Project addresses the Quality Assurance requirements delineated in DOE Order 5700.6C and the Thermionic Program Management Plan 214PMP000001. The Quality Assurance Program is based on the following fundamental principles, which Rocketdyne endorses and the QA Project Manager and Program Manager shall enforce: Quality Achievement is a continuing responsibility of line organization at all levels; the Quality Assurance organization through the effective overview of work, gives additional assurance that specified requirements are met; risk is the fundamental consideration in determining to what extent the Quality Assurance Plan should be applied to items and processes; action is based on facts and analysis, customer driven quality, strong quality leadership and continuous improvement.

Savannah River Site supernatant liquid waste samples are periodically taken and analyzed for corrosive and inhibiting species concentrations as part of the waste tank chemistry control program. These samples are taken at or near the surface of the waste. This is the preferred location for sampling since the liquid phase at this location is the most corrosive liquid phase in the tank as a result of the highest nitrate to nitrite ratio and the lowest hydroxide concentration. This report discusses the sampling of high-level radioactive wastes at the Savannah River Site.

Savannah River Site supernatant liquid waste samples are periodically taken and analyzed for corrosive and inhibiting species concentrations as part of the waste tank chemistry control program. These samples are taken at or near the surface of the waste. This is the preferred location for sampling since the liquid phase at this location is the most corrosive liquid phase in the tank as a result of the highest nitrate to nitrite ratio and the lowest hydroxide concentration. This report discusses the sampling of high-level radioactive wastes at the Savannah River Site.

The universal drift instability and other drift instabilities driven by density and temperature gradients in a toroidal system are investigated in both linear and nonlinear regimes via particle simulation. Runs in toroidal and cylindrical geometry show dramatic differences in plasma behavior, primarily due to the toroidicity-induced coupling of rational surfaces through the poloidal mode number m. In the toroidal system studied, the eigenmodes are seen to possess (i) an elongated, nearly global radial extent (ii) a higher growth rate than in the corresponding cylindrical system, (iii) an eigenfrequency nearly constant with radius, (iv) a global temperature relaxation and enhancement of thermal heat conduction. Most importantly, the measured Xi shows an increase with radius and an absolute value on the order of that observed in experiment. On the basis of our observations, we argue that the increase in Xi with radius observed in experiment is caused by the global nature of heat convection in the presence of toroidicity-induced mode coupling.

The universal drift instability and other drift instabilities driven by density and temperature gradients in a toroidal system are investigated in both linear and nonlinear regimes via particle simulation. Runs in toroidal and cylindrical geometry show dramatic differences in plasma behavior, primarily due to the toroidicity-induced coupling of rational surfaces through the poloidal mode number m. In the toroidal system studied, the eigenmodes are seen to possess (i) an elongated, nearly global radial extent (ii) a higher growth rate than in the corresponding cylindrical system, (iii) an eigenfrequency nearly constant with radius, (iv) a global temperature relaxation and enhancement of thermal heat conduction. Most importantly, the measured Xi shows an increase with radius and an absolute value on the order of that observed in experiment. On the basis of our observations, we argue that the increase in Xi with radius observed in experiment is caused by the global nature of heat convection in the presence of toroidicity-induced mode coupling.

During this last quarter, evaluations were complete on the motor materials after 500-hr exposures to refrigerants CFC-123, HFC-134a and HCFC-22 at 90{degrees}C. Materials were also evaluated after exposure to nitrogen at 127{degrees}C to determine effect of the thermal exposure. Other exposures were started during this quarter with refrigerants HCFC-124, HFC-125, HFC-143a, HFC-32 and HFC-152a. One 500 hr exposure is set up per week and one is analyzed the same week. This will enable Trane to complete the 500 hour exposures by the end of the year.