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open access

14'' x 17'' film recorder for computer-enhanced scans

Description: Physician acceptance of computer-enhanced radionuclide scan results, presented in the form of small Polaroid pictures, has been very limited for a number of subjective reasons. A new recorder was designed and constructed that presents the results of computer augmented scans through a medium that is quite familiar to doctors, the standard 14 in. x 17 in. x-ray film. (auth)
Date: January 1, 1976
Creator: Morris, A. C., Jr.; Barclay, T. R.; Akin, T. E.; Hansard, M. C.; Gibbs, W. D. & Modzelewski, C. U.
open access

120-keV Neutral-Beam Injection System Development

Description: The neutral-beam injection systems for the next generation of U. S. fusion experiments (TFTR, MX, Doublet III) have requirements that considerably exceed the present state of development. TFTR, for example, desires 20 MW of 120-keV deuterium atoms in pulses of 0.5-sec duration. The neutral-beam systems needed to meet these demands will be large and complex and will require much development effort. In order to develop components for these new systems, a new, large test facility was constructed. … more
Date: February 1, 1976
Creator: Ehlers, K. W.; Berkner, K. H.; Cooper, W. S.; Haughian, J. M.; Kunkel, W. B.; Prichard, B. A., (Jr.) et al.
open access

2XIIB plasma confinement experiments

Description: This paper reports results of 2XIIB neutral-beam injection experiments with plasma-stream stabilization. The plasma stream is provided either by a pulsed plasma generator located on the field lines outside the plasma region or by ionization of neutral gas introduced at the mirror throat. In the latter case, the gas is ionized by the normal particle flux through the magnetic mirror. A method of plasma startup and sustenance in a steady-state magnetic field is reported in which the plasma stream … more
Date: August 6, 1976
Creator: Coensgen, F. H.; Clauser, J. F. & Correll, D. L.
open access

Ab initio potential surface calculations for the H + H₂O and H + HF hydrogen atom exchange reactions

Description: The calculations reveal that the H + H/sub 2/O and H + HF exchange reactions are both characterized by a large energy barrier (on the order of 20 to 30 kcal/mole) and a transition state possessing significant Rydberg 3s character on the central atom. The presence of high energy barriers means that both exchange reactions will be extremely slow except at very high temperatures.
Date: January 1, 1976
Creator: Wadt, W. R. & Winter, N. W.
open access

Abstracts of the first ORNL workshop on polycyclic aromatic hydrocarbons: characterization and measurement with a view toward personnel protection. [PAH from coal conversion]

Description: This report contains the abstracts of papers presented at a workshop on polycyclic aromatic hydrocarbons (PAH) such as those produced by coal conversion technologies. Their often carcinogenic nature imposes the obligation of providing adequate protection and measurement devices for workers and for the general public. The primary questions are as follows: What should be measured. Where and how should it be measured. What are the maximum permissible concentrations. This workshop and future worksh… more
Date: November 1, 1976
Creator: Gammage, R. B. (comp.)
open access

ac loss and dc critical current densities of Nb/sub 3/Sn tapes by the solid state diffusion process

Description: The effects of metallurgical processing on 60 Hz ac losses and dc critical currents in Nb/sub 3/Sn tapes fabricated by the solid state diffusion technique were investigated. An addition of Al to the Cu--Sn alloy for the matrix resulted in large reduction in the ac losses of Nb/sub 3/Sn tapes, but the highest linear critical current densities were observed in Nb/sub 3/Sn tapes produced with a Nb-1 wt percent Zr core in a Cu-13 wt percent Sn matrix. Values of the losses and the critical currents … more
Date: January 1, 1976
Creator: Suenaga, M; Klamut, C & Bussiere, J F
open access

Accelerator based atomic physics experiments: an overview

Description: Atomic Physics research with beams from accelerators has continued to expand and the number of papers and articles at meetings and in journals reflects a steadily increasing interest and an increasing support from various funding agencies. An attempt will be made to point out where interdisciplinary benefits have occurred, and where applications of the new results to engineering problems are expected. Drawing from material which will be discussed in the conference, a list of the most active are… more
Date: January 1, 1976
Creator: Moak, C. D.
open access

Accelerator for pion clinical facilities. [Cost factors]

Description: Pion sources suitable for cancer therapy utilizing a large acceptance collector are within the state of the art in this field. Costs are remarkably uniform between the various accelerator types, and are within reason for large centers which might specialize in this type therapy. Accelerator size is a problem, but may be reduced as various studies extend the state of the art in this area. None of the contenders is a small device, and all will require a large operating staff (8-10 people) just to… more
Date: January 1, 1976
Creator: Knapp, E. A.
open access

Accelerator safety program at the Lawrence Livermore Laboratory

Description: A proposed accelerator safety standard for the Lawrence Livermore Laboratory (LLL) is given. All accelerators will comply with this standard when it is included in the LLL Health and Safety Manual. The radiation alarm and radiation safety system for a radiography facility are also described.
Date: October 12, 1976
Creator: Graham, Curtis L.
open access

Acquisition, storage, retrieval, display, and utilization of computerized data in the LLL data bank of physical and chemical properties

Description: The demand for evaluated numerical data in the physical sciences and engineering, accentuated by the programmatic objectives of the U.S. ERDA, is being met in part at LLL by the data management research project, which is devoted to the creation of scientific data bases, design and implementation of scientific data management systems, and computer communication and networking. The evolution of this program and the LLL computer systems on which it is based are described. 14 figures. (RWR)
Date: July 1, 1976
Creator: Hampel, V. E.; Henry, E. A.; Kuhn, R. W. & Lyles, L.
open access

Actinide-soil interactions in waste management at the Savannah River Plant

Description: Three aspects of the transuranium (TRU) nuclide-soil interaction were studied in connection with Savannah River Plant (SRP) burial ground operations. Results of the studies are reported as three separate parts of this report. (auth)
Date: January 1, 1976
Creator: Holcomb, H.P.; Horton, J.H. & Wilhite, E.L.
open access

Adhesion of electrodeposited coatings on U--Ti and Mulberry

Description: Quantitative test data are presented for two etched and plated uranium alloys, U-0.75 Ti and mulberry (U-7.5 Nb, 2.5 Zr). Conical head tensile tests showed that the bond between nickel plating and U--Ti was stronger than that between nickel plating and mulberry. Ring shear tests showed that electroplated nickel coatings are more adherent than other coatings applied to U--Ti. Utilizing a newly developed etchant for mulberry, large cylinders of this material were joined to aluminum and then tensi… more
Date: May 1, 1976
Creator: Johnson, H. R. & Dini, J. W.
open access

Adiabatic elastic moduli of single crystal pentaerythritol tetranitrate (PETN)

Description: The adiabatic elastic moduli for tetragonal single crystal PETN were measured using the phase comparison technique of McSkimin with minor variations. Measurements on four different crystal orientations yielded twelve wave velocities from which the six moduli were calculated. The self-consistency cross-checks on c/sub 11/, c/sub 12/, and c/sub 44/ were excellent while the cross-checks on c/sub 33/, c/sub 66/, and c/sub 13/ were not. The only modulus with appreciable error was c/sub 13/ which was… more
Date: January 1, 1976
Creator: Morris, C. E.
open access

ADP and brucellosis indemnity systems development

Description: Our initial study of the USDA/TAHC Brucellosis Indemnity Program in Texas has shown that both the efficiency and rate of claim payments can be increased by the application of present day computer technologies. Two main factors contribute to these increases: the number of discrepancies that are caused by poor penmanship, transposition of numbers, and other human errors can be monitored and minimized; and the documented information can be indexed, sorted, and searched faster, more efficiently, an… more
Date: January 1, 1976
Creator: Sanders, W. M. & Harlan, B. L.
open access

Advanced laser technology for laser-induced fusion applications

Description: The crucial issues involved in laser design are briefly reviewed: (1) obtain complete flexibility and control of laser energy, (2) design optimized amplifiers, and (3) increase laser efficiency. Most of the discussion deals with item 2. (MOW)
Date: January 1, 1976
Creator: Carman, R. L.
open access

Advantages of magnification radiography

Description: Geometric arrangements and exposure conditions used in different magnification techniques are described and the following advantages of radiographic magnification technique are discussed: sharpness effect; noise effect; air gap effect; and visual effect. The magnification technique can be used in various diagnostic procedures as a means of improving the image quality of radiographs. (HLW)
Date: January 1, 1976
Creator: Doi, K.
open access

Aeromonas distribution and survival in a thermally altered lake

Description: Par Pond is a thermally enriched monomictic southeastern lake which receives heated effluent from a production nuclear reactor. Fish populations in the lake have lesions of epizooty from which Aeromonas spp. are readily isolated. Distribution and population densities of Aeromonas in the water column were measured along an oxygen and temperature gradient. Greater population densities of Aeromonas occurred below the oxygen chemocline when the lake was stratified. Survival of A. hydrophila under i… more
Date: January 1, 1976
Creator: Fliermans, C. B.; Gordon, R. W.; Hazen, T. C. & Esch, G. W.
open access

AGS superconducting bending magnets

Description: Four large aperture superconducting bending magnets are being built for use in the experimental beams at the AGS. Each of these magnets is 2.5 m long and has a room temperature aperture of 20 cm. The magnets are similar in design to the dipoles being developed for ISABELLE and employ a low temperature iron core. Results are presented on the ''training'' behavior of the magnets and a comparison will be made with the smaller aperture versions of this design. The magnet field measurements include … more
Date: January 1, 1976
Creator: Robins, K. E.; Sampson, W. B.; McInturff, A. D.; Dahl, P. F.; Abbatiello, F.; Aggus, J. et al.
open access

Air filtration enhancement using electronic techniques

Description: Dielectrophoretic filtration experiments were conducted on glass, polyester, dacron, Teflon, wool, acrylic and polypropylene filter media. A polydispersed (sigma g = 2.0, ammd = 0.95 ..mu.. m) sodium chloride particle was used as a test aerosol. All materials exhibited significant increases in efficiency with increasing field strengths. Efficiencies of greater than 99 percent could be obtained from glass fiber mats using a 13 kV/cm electric field at 16.3 cm/s face velocity.
Date: June 24, 1976
Creator: Nelson, G. O.; Richards, C. P.; Biermann, A. H.; Taylor, R. D. & Miller, H. H.
open access

Airborne effluent control at fuel enrichment, conversion, and fabrication plants

Description: Uranium conversion, enrichment, and fuel fabrication facilities generate gaseous wastes that must be treated prior to being discharged to the atmosphere. Since all three process and/or handle similar compounds, they also encounter similar gaseous waste disposal problems, the majority of which are treated in a similar manner. Ventilation exhausts from personnel areas and equipment off-gases that do not contain corrosive gases (such as HF) are usually passed through roughening and/or HEPA filters… more
Date: January 1, 1976
Creator: Mitchell, M. E.
open access

Airborne effluent control at uranium mills

Description: The Oak Ridge National Laboratory has made an engineering cost--environmental benefit study of radioactive waste treatment systems for decreasing the amount of radioactive materials released from uranium ore processing mills. This paper summarizes the results of the study which pertain to the control and/or abatement of airborne radioactive materials from the mill processes. The tailings area is not included. Present practices in the uranium milling industry, with particular emphasis on effluen… more
Date: January 1, 1976
Creator: Sears, M. B.
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