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open access

Assessment of Geothermal Resources for Electric Generation in the Pacific Northwest, Draft Issue Paper for the Northwest Power Planning Council

Description: This document reviews the geothermal history, technology, costs, and Pacific Northwest potentials. The report discusses geothermal generation, geothermal resources in the Pacific Northwest, cost and operating characteristics of geothermal power plants, environmental effects of geothermal generation, and prospects for development in the Pacific Northwest. This report was prepared expressly for use by the Northwest Power Planning Council. The report contains numerous references at the end of the … more
Date: September 26, 1989
Creator: Geyer, John D.; Kellerman, L. M. & Bloomquist, R. G.
Item Type: Refine your search to only Report
open access

Biomodal spontaneous fission

Description: Investigations of mass and kinetic-energy distributions from spontaneous fission have been extended in recent years to an isotope of element 104 and, for half-lives, to an isotope of element 108. The results have been surprising in that spontaneous fission half-lives have turned out to be much longer than expected and mass and kinetic- energy distributions were found to abruptly shift away from those of the lighter actinides, showing two modes of fission. These new developments have caused a re… more
Date: September 26, 1989
Creator: Hulet, E.K. (Lawrence Livermore National Lab., CA (USA))
Item Type: Refine your search to only Article
open access

The Brookhaven Accelerator Test Facility laser linac beam line

Description: We report here the low emittance beam transport line for laser acceleration experiments at the Brookhaven Accelerator Test Facility (ATF). In order to preserve the low emittance ({approximately} 10{sup -10} m-rad) 50 MeV electron beam, great care has to be paid to the higher-order effects. The low-emittance transport line consists of two parts; the first part performs and emittance selection, and the other part provides the possibility of energy selection and beam transport to the experimental … more
Date: September 26, 1989
Creator: Wang, Xijie (Brookhaven National Lab., Upton, NY (USA) California Univ., Los Angeles, CA (USA). Center for Advanced Accelerators Physics) & Kirk, H.G. (Brookhaven National Lab., Upton, NY (USA))
Item Type: Refine your search to only Report
open access

A C programmer's view of a relational database

Description: The AGS Distributed Control System (AGSDCS) uses a relational database (Interbase) for the storage of all data on the host system network. This includes the static data which describes the components of the accelerator complex, as well as data for application program setup and data records that are used in analysis. By creating a mapping of each elation in the database to a C record and providing general tools for relation (record) across, all the data in the database is available in a natural … more
Date: October 26, 1989
Creator: Clifford, T.; Katz, R. & Griffiths, C.
Item Type: Refine your search to only Article
open access

Coal based electric generation comparative technologies report

Description: Ohio Clean Fuels, Inc., (OCF) has licensed technology that involves Co-Processing (Co-Pro) poor grade (high sulfur) coal and residual oil feedstocks to produce clean liquid fuels on a commercial scale. Stone Webster is requested to perform a comparative technologies report for grassroot plants utilizing coal as a base fuel. In the case of Co-Processing technology the plant considered is the nth plant in a series of applications. This report presents the results of an economic comparison of this… more
Date: October 26, 1989
Item Type: Refine your search to only Report
open access

Cryo Utilities Room Cooling System

Description: Many of the mechanical equipment failures at the Laboratory are due to the loss of cooling water. In order to insure the proper operating temperatures and to increase the reliability of the mechanical equipment in the D0 Cryo Utilities Room it is necessary to provide an independent liquid cooling system. To this end, an enclosed glycoVwater cooling system which transfers heat from two vane-type vacuum pumps and an air compressor to the outside air has been installed in the Cryo Utilities Room. … more
Date: January 26, 1989
Creator: Ball, G. S.
Item Type: Refine your search to only Report
open access

Determination of Fe(II)Fe(II) ratio in glass

Description: The procedure was designed for the simple, rapid determination of the Fe(II)/Fe(III) ratio in glass samples. The procedure consists of the following steps: dissolution of the pulverized glass sample in a sulfuric-hydrofluoric acid mixture, containing ammonium vanadate, which preserves the Fe(II) content; addition of boric acid to destroy iron-fluoride complexes, making the iron available for color formation with Ferrozine; addition of pH 5 buffer and Ferrozine reagent to form the magenta-colore… more
Date: July 26, 1989
Creator: Baumann, E. W.
Item Type: Refine your search to only Report
open access

Japan: Prospects for Greater Market Openness

Description: Japan has made considerable progress in opening its economy to imports, but significant obstacles remain. This report analyzes the underlying causes of Japan's market protection and assesses the prospects for Japan moving in the direction of greater market openness.
Date: June 26, 1989
Creator: Ahearn, Raymond J.
Item Type: Refine your search to only Report
open access

Main Ring bunch spreaders: Past, 1987/1988 fixed target run, and proposed future

Description: During the last 1987--1988 fixed target running period beam intensity was limited many times by coherent instabilities in both the Main Ring and in the Tevatron. The intensity thresholds for instabilities are generally inversely proportional to the proton bunch length. Since fixed target operations are insensitive to the longitudinal phase space emittance of the beam, bunch spreaders are employed to increase this emittance, and hence the bunch length. As a result, more beam intensity can be del… more
Date: February 26, 1989
Creator: Jackson, Gerald P.
Item Type: Refine your search to only Report
open access

A microwiggler Free-Electron Laser at the Brookhaven Accelerator Test Facility

Description: We report the design and status of an FEL experiment at the Brookhaven National Laboratory Accelerator Test Facility. A 50 MeV high brightness electron beam will be utilized for an oscillator experiment in the visible wavelength region. The microwiggler to be used is a superferric planar undulator with a 0.88 cm period, 60 cm length and K = 0.35. The optical cavity is a 368 cm long stable resonator with broadband dielectric coated mirrors. 8 refs., 2 figs., 4 tabs.
Date: September 26, 1989
Creator: Batchelor, K.; Ben-Zvi, Ilan; Fernow, R.; Gallardo, J.; Kirk, H.; Pellegrini, C. et al.
Item Type: Refine your search to only Report
open access

Novel supports for coal liquefaction catalysts

Description: Cold model studies of the liquid fluidized bed microreactor are essentially complete. This report documents experimental data obtained for the optimum (60{degrees} blade angle) axial flow impeller in Gas/Liquid/Solid service. Dimensionless correlations are presented for the critical stirrer speeds corresponding to incipient fluidization, S{sub 1}, and particle carryover, S{sub 2}. Under some circumstances bed expansion ceases prior to particle carryover due to cavitation in the impeller. A corr… more
Date: December 26, 1989
Creator: Haynes, Jr., H. W.
Item Type: Refine your search to only Report
open access

Operating point selection and burn stability control for the International Thermonuclear Experimental Reactor

Description: The selection and burn stability control of near-ignited operating points for the International Thermonuclear Experimental Reactor (ITER) are considered. It is suggested that high density (<T{sub e}>{sub n} {approximately} 6-10 keV) operating points are preferred from considerations of proximity to magnetohydrodynamic (MHD) stability limits, divertor operation, and fueling even though those points are intrinsically thermally unstable. Results from simple 0-D transport simulations suggest that t… more
Date: September 26, 1989
Creator: Haney, S.W. & Perkins, L.J.
Item Type: Refine your search to only Article
open access

Pion correlations as a function of atomic mass in heavy ion collisions

Description: The method of two pion interferometry was used to obtain source-size and lifetime parameters for the pions produced in heavy ion collisions. The systems used were 1.70 {center dot} A GeV {sup 56}Fe + Fe, 1.82 {center dot} A GeV {sup 40}Ar + KCl and 1.54 {center dot} A GeV {sup 93}Nb + Nb, allowing for a search for dependences on the atomic number. Two acceptances (centered, in the lab., at {approximately} 0{degrees} and 45{degrees}) were used for each system, allowing a search for dependences o… more
Date: November 26, 1989
Creator: Chacon, A.D.
Item Type: Refine your search to only Report
open access

Processes of community development and responses of ecosystems to climate change

Description: Our studies focus on attempting to understand the role of decomposer-primary producer linkages in successional dynamics. We are testing a series of hypotheses that relate changes in plant species composition during succession to changes in activity and structure of the soil microfloral and faunal community, dynamics of soil organic matter, and availability of soil nutrients. As these successional patterns are identified, they are being applied to understanding specific processes and mechanics i… more
Date: May 26, 1989
Creator: Redente, E.F.
Item Type: Refine your search to only Report
open access

Processes of community development and responses of ecosystems to climate change. Progress report, September 28, 1988--September 27, 1989

Description: Our studies focus on attempting to understand the role of decomposer-primary producer linkages in successional dynamics. We are testing a series of hypotheses that relate changes in plant species composition during succession to changes in activity and structure of the soil microfloral and faunal community, dynamics of soil organic matter, and availability of soil nutrients. As these successional patterns are identified, they are being applied to understanding specific processes and mechanics i… more
Date: May 26, 1989
Creator: Redente, E. F.
Item Type: Refine your search to only Report
open access

Prospects for inertial fusion as an energy source

Description: Progress in the Inertial Confinement Fusion (ICF) Program has been very rapid in the last few years. Target physics experiments with laboratory lasers and in underground nuclear tests have shown that the drive conditions necessary to achieve high gain can be achieved in the laboratory with a pulse-shaped driver of about 10 MJ. Requirements and designs for a Laboratory Microfusion Facility (LMF) have been formulated. Research on driver technology necessary for an ICF reactor is making progress. … more
Date: June 26, 1989
Creator: Hogan, W.J.
Item Type: Refine your search to only Article
open access

Prototype Engineered Barrier System Field Tests; Progress report

Description: This paper presents selected preliminary results obtained during the first 54 days of the Prototype Engineered Barrier System Field Tests (PEBSFT) that are being performed in G-Tunnel within the Nevada Test Site. The test described is a precursor to the Engineered Barrier Systems Field Tests (EBSFT). The EBSFT will consist of in situ tests of the geohydrologic and geochemical environment in the near field (within a few meters) of heaters emplaced in welded tuff to simulate the thermal effects o… more
Date: July 26, 1989
Creator: Ramirez, A. L.; Beatty, J.; Buscheck, T. A.; Carlson, R.; Daily, W.; LaTorre, V. R. et al.
Item Type: Refine your search to only Article
open access

Technical memo on PbF/sub 2/ as a Cherenkov radiator for EM calorimetry

Description: It is apparent that the ever increasing rates and radiation levels found in high-energy physics are excluding more and more instrumental techniques. Those techniques that are remaining are often pushed to their theoretical limits. This situation reaches an extreme at the proposed luminosity of the SSC. Also, it is fair to say that at the SSC, after the accelerator itself, calorimetry will be the next most important physics tool. Therefore, we should be ever alert to new calorimetry techniques w… more
Date: June 26, 1989
Creator: Anderson, D. F.
Item Type: Refine your search to only Report
open access

Traveling-wave-tube simulation: The IBC (Interactive Beam-Circuit) code

Description: Interactive Beam-Circuit (IBC) is a one-dimensional many particle simulation code which has been developed to run interactively on a PC or Workstation, and displaying most of the important physics of a traveling-wave-tube. The code is a substantial departure from previous efforts, since it follows all of the particles in the tube, rather than just those in one wavelength, as commonly done. This step allows for nonperiodic inputs in time, a nonuniform line and a large set of spatial diagnostics.… more
Date: September 26, 1989
Creator: Morey, I. J. & Birdsall, C. K.
Item Type: Refine your search to only Report
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