Search Results

open access

User's manual for CNVUFAC, the general dynamics heat-transfer radiation view factor program

Description: CNVUFAC, the General Dynamics heat-transfer radiation veiw factor program, has been adapted for use on the LLL CDC 7600 computer system. The input and output have been modified, and a node incrementing logic was included to make the code compatible with the TRUMP thermal analyzer and related codes. The program performs the multiple integration necessary to evaluate the geometric black-body radiaton node to node view factors. Card image output that contains node number and view factor informatio… more
Date: June 25, 1976
Creator: Wong, R. L.
Partner: UNT Libraries Government Documents Department
open access

Slicing of silicon into sheet material. Silicon sheet growth development for the large area silicon sheet task of the low cost silicon solar array project. Second quarterly report, March 22, 1976--June 20, 1976

Description: Slicing tests of silicon to show the dependence of cutting rate on operating conditions are complete. Cutting rate is linear with cutting force per blade and bladehead speed, and inversely proportional to kerf width (loss) and kerf length. The dimensionless parameter of cutting efficiency is a good measure of the performance of a multiblade slicing system. Low contact pressure between the blades and the silicon workpiece result in increased wafer accuracy and cutting efficiency. Blade wear seem… more
Date: June 25, 1976
Creator: Holden, S. C.
Partner: UNT Libraries Government Documents Department
open access

Floating substrate process. Second quarterly progress report, March 29, 1976--June 20, 1976

Description: This research program began January 6, 1976. Its objective is to demonstrate the feasibility of the floating substrate sheet growth process for the growth of silicon sheet. This process is an approach to the formation of single-crystal silicon by direct epitaxial conversion from a gaseous silane. Incoming feedstock gas impinges upon a silicon substrate which is floating upon a thin pool of liquid tin. Single-crystal silicon grows to the desired thickness by means of vapor phase epitaxy. Nucleat… more
Date: June 25, 1976
Creator: Garfinkel, M. & Hall, R. N.
Partner: UNT Libraries Government Documents Department
open access

Fueling, heating, and leaking of plasma in mirror reactors

Description: The principles of mirror machine confinement are reviewed with emphasis on the physical process of neutral beam injection and plasma end leakage. The characteristics of efficient neutral beam injectors and direct energy convertors for the plasma and leakage are described.
Date: June 25, 1976
Creator: Carlson, G. A. & Moir, R. W.
Partner: UNT Libraries Government Documents Department
open access

Status of U-235 fission as a cross section standard. [10 keV to 20 MeV]

Description: A review is made of the current status of /sup 235/U fission cross section data from thermal to 20 MeV neutron energies. The accuracy achieved is compared with the 1 percent accuracy required of a reaction-cross-section standard throughout this range. The energy ranges from thermal to 10 keV, 10 keV to 0.8 MeV and 0.8 to 20 MeV are considered separately because of the different experimental techniques required in each. The goal of normalizing all fission cross sections to the thermal value and … more
Date: June 25, 1976
Creator: Carlson, G. W. & Czirr, J. B.
Partner: UNT Libraries Government Documents Department
open access

Treatment of waste lubricating oil using BERC/ERDA solvent

Description: From data generated in the laboratory and pilot plant studies a quality rerefined oil can be produced via BERC/ERDA solvent extraction and clay treatment. Some of the important processing variables that determine the quality of the finished product are temperature of solvent extraction, type of clay used, temperature and time of clay treatment, and the atmosphere under which the oil is treated with clay. Yields of 75 percent based on water-distillate-free oil can be expected at the conditions u… more
Date: June 25, 1976
Creator: Corlew, J. S. & Sluski, R. J.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen