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Advanced gas cooled nuclear reactor materials evaluation and development program. Selection of candidate alloys. Vol. 1. Advanced gas cooled reactor systems definition

Description: Candidate alloys for a Very High Temperature Reactor (VHTR) Nuclear Process Heal (NPH) and Direct Cycle Helium Turbine (DCHT) applications in terms of the effect of the primary coolant exposure and thermal exposure were evaluated. (FS)
Date: October 31, 1978
Creator: Marvin, M. D.
Item Type: Refine your search to only Report
open access

Advanced lasers for fusion applications

Description: Projections indicate that MJ/MW laser systems, operating with efficiencies in escess of 1 percent, are required to drive laser fusion power reactors. Moreover, a premium in pellet performance is anticipated as the wavelength of the driver laser system is decreased. Short wavelength laser systems based on atomic selenium (lambda = 0.49..mu..), terbium molcular vapors (0.55..mu..), thulium doped dielectric solids (0.46..mu..), and on pulse compressions of KrF excimer laser radiaton (0.27..mu..) h… more
Date: November 1, 1978
Creator: Krupke, W. F.
Item Type: Refine your search to only Article
open access

Advanced methods for nuclear reactor gas laser coupling

Description: Research is described that led to the discovery of three nuclear-pumped lasers (NPLs) using mixtures of Ne--N/sub 2/, He--Hg, and He or Ne with CO or CO/sub 2/. The Ne--N/sub 2/ NPL was the first laser obtained with modest neutron fluxes from a TRIGA reactor (vs fast burst reactors used elsewhere in such work), the He--Hg NPL was the first visible nuclear-pumped laser, while the Ne--CO and He--CO/sub 2/ lasers are the first to provide energy storage on a millisecond time scale. Important potent… more
Date: June 1, 1978
Creator: Miley, George H. & Verdeyen, Joseph T.
Item Type: Refine your search to only Report
open access

Advanced subsystems development. Second semi-annual progress report, April 1--October 1, 1978

Description: The concept design for a small (less than 10 MWe) solar thermal electric generating plant was completed using projected 1985 technology. The systems requirements were defined and specified. The components, including an engineering prototype for one 15 kWe module of the generating plant, were conceptually designed. Significant features of the small solar thermal power plant were identified as the following: (1) 15-kWe Stirling-cycle engine/alternator with constant power output; (2) 10-meter poin… more
Date: November 15, 1978
Item Type: Refine your search to only Report
open access

Advanced technology thermal energy storage and heat exchange systems for solar applications: a survey of current research

Description: A survey is presented of the advanced research and development projects underway in the U.S. in all of the known media and methods for storing and transferring thermal energy in solar applications. The technologies reviewed include innovative heat exchange and heat transport methods, advanced sensible heat storage in water, rocks, earth and combinations of these for both short term and annual storage, phase change materials, and reversible chemical reactions. This survey is presented in a struc… more
Date: January 1, 1978
Creator: Michaels, A. I.
Item Type: Refine your search to only Article
open access

Advanced Thermohydraulic Simulation Code for Transients in LMFBRs (SSC-L code)

Description: Physical models for various processes that are encountered in preaccident and transient simulation of thermohydraulic transients in the entire liquid metal fast breeder reactor (LMFBR) plant are described in this report. A computer code, SSC-L, was written as a part of the Super System Code (SSC) development project for the "loop"-type designs of LMFBRs. This code has the self-starting capability, i.e., preaccident or steady-state calculations are performed internally. These results then serve … more
Date: February 1, 1978
Creator: Agrawal, A. K.
Item Type: Refine your search to only Report
open access

Advanced turbodrills for geothermal wells

Description: The development of a new high-temperature, 350/sup 0/C advanced turbodrill for use in drilling geothermal wells is underway. Existing downhole drilling motors are temperature limited because of elastomeric degradation at elevated temperature. The new turbodrill contains high-torque turbine blades and improved seals which allow higher bit pressure drops. This new geothermal turbodrill which is designed for improved directional drilling offers economic alternatives for completing geothermal wells… more
Date: January 1, 1978
Creator: Maurer, W. C.; Rowley, J. C. & Carwile, C.
Item Type: Refine your search to only Article
open access

Advances in characterization of materials: alloys and ceramics

Description: The advantages of high resolution electron diffraction and imaging have been revealed in a wide variety of metallic systems, providing insight into the mechanisms of such phase transformations as ordering, spinodal decomposition, grain boundary precipitation, and the martensitic reaction. Structural discontinuities in interphase interfaces (atomic plane ledges) and grain boundaries (plane matching defects) have been identified with high precision, and compositional variations on an atomic scale… more
Date: May 1, 1978
Creator: Thomas, G.
Item Type: Refine your search to only Article
open access

Advances in fast reactor sensitivity and uncertainty analysis

Description: A review of present methods and existing computer codes indicates an enormous capability not only to calculate sensitivity coefficients but also to apply them to a variety of purposes. However, there are still many limitations to our present capabilities. One of these limitations has been our inability to include in a complete and systematic way the effect of methods uncertainties on the determination of adjusted data, which depends, in general, not only on experimental measurements, but also o… more
Date: January 1, 1978
Creator: Marable, J.H. & Weisbin, C.R.
Item Type: Refine your search to only Article
open access

Advances in the heat treatment of steels

Description: A number of important recent advances in the processing of steels have resulted from the sophisticated uses of heat treatment to tailor the microstructure of the steels so that desirable properties are established. These new heat treatments often involve the tempering or annealing of the steel to accompish a partial or complete reversion from martensite to austenite. The influence of these reversion heat treatments on the product microstructure and its properties may be systematically discussed… more
Date: June 1, 1978
Creator: Morris, J. W., Jr.; Kim, J. I. & Syn, C. K.
Item Type: Refine your search to only Article
open access

Adversary modeling: an analysis of criminal activities analogous to potential threats to nuclear safeguard systems

Description: This study examines and analyzes several classes of incidents in which decision makers are confronted with adversaries. The classes are analogous to adversaries in a material control system in a nuclear facility. Both internal threats (bank frauds and embezzlements) and external threats (aircraft hijackings and hostage-type terrorist events were analyzed. (DLC)
Date: December 20, 1978
Creator: Heineke, J.M.
Item Type: Refine your search to only Report
open access

Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 1: Rock Springs, Rawlins, and Cheyenne Quadrangles (Wyoming), and the Greeley Quadrangle (Colorado)

Description: The data collected in this report was recorded after a high sensitivity airborne radiometric and magnetic survey was conducted over the Rock Springs, Rawlins, and Cheyenne quadrangles in Wyoming, and the Greeley quadrangle in Colorado.
Date: December 1978
Creator: GeoMetrics, Inc.
Item Type: Refine your search to only Report
Location: None
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