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Spot Weld Test Pull

Description: Thd D-zero cryostats will contain a number of detector modules. Each module will be made up of plates separated by G-10. To hold the plates together a stainless steel skin has been proposed to cover a whole module. By a series of calculations it was noted that the thin skins would buckle under the force. To prevent the buckling it was proposed to spot weld the skins to some of the internal plates, therefore giving the skins greatly increased strength. This paper gives the results of the test on… more
Date: December 7, 1985
Creator: Stepanek, G.
Partner: UNT Libraries Government Documents Department
open access

Pay Compatibility for Federal White-Collar Workers

Description: This report reviews the Congress's decision to freeze federal pay for one year as part of the budget resolution for the year, 1986. It discusses the standards to determine the Federal pay rate and the levels of pay that are set in place in the Federal government.
Date: August 7, 1985
Creator: Schwemle, Barbara L.
Partner: UNT Libraries Government Documents Department
open access

Specific heat loading in Nd:glass lasers

Description: The specific thermal load parameter, chi, for xenon flashlamp-pumped Nd:glass gain media is written as a function of neodymium concentration, pump pulse duration, and energy extraction efficiency. The currently available data on radiative and nonradiative decay probabilities of several commercial Nd:glasses are used to calculate and graph specific thermal load parameter values. By factoring these results into performance scaling relationships for zig-zag and disk lasers, specific Nd:glasses can… more
Date: August 7, 1985
Creator: Krupke, W. F.
Partner: UNT Libraries Government Documents Department
open access

Experimental attempt to achieve microstructure variations through temperature/time permutations for a nonwrought powder metallurgy uranium-6 niobium alloy

Description: The powder metallurgical processing of uranium-6 niobium (U-6Nb) alloy has undergone 3 years of characterization at the Oak Ridge Y-12 Plant. The current structure of the powder metallurgy (P/M) alloy has been described as duplex: a mixture of two or more distinct grain sizes. An experiment was conducted to determine a gamma stabilizing heat treatment (time and temperature combination) to produce a structure consisting of one gamma grain size. Two heat treatments were found to produce an irregu… more
Date: June 7, 1985
Creator: Alexander-Morrison, G.M.
Partner: UNT Libraries Government Documents Department
open access

PEP vs 6-GeV

Description: There has been some feeling that a PEP upgrade might reduce the need for a 6-GeV synchrotron source. In this note we compare the two sources from a user viewpoint. Specifications for each are laid out and in conclusion, it appears that the PEP ring, at best, will be a useful source for carrying out 6-GeV R&D work (related to accelerator physics and beamline optics) rather than a replacement for a 6-GeV source.
Date: May 7, 1985
Creator: Shenoy, G. K.
Partner: UNT Libraries Government Documents Department
open access

Maximally Concentrating Optics for Photovoltaic Solar Energy Conversion

Description: Use of a two-stage concentrator with a fresnel lens primary and a nonimaging dielectric totally internally reflecting secondary, has unique advantages for photovoltaic concentration. Some preliminary ray trace studies have shown that with planar lenses, an increase in angular acceptance for a given geometric concentration to about 2/3 of the maximum theoretical limit can be achieved. To demonstrate this, two preprototype concentrators, each having a geometric concentration of 248:1 for a 0.635c… more
Date: March 7, 1985
Creator: O'Gallagher, J. J.
Partner: UNT Libraries Government Documents Department
open access

Maximally Concentrating Optics for Photovoltaic Solar Energy Conversion. Technical Progress Report, [July 1, 1984--January 31, 1985]

Description: Use of a two-stage concentrator with a fresnel lens primary and a nonimaging dielectric totally internally reflecting secondary, has unique advantages for photovoltaic concentration. Some preliminary ray trace studies have shown that with planar lenses, an increase in angular acceptance for a given geometric concentration to about 2/3 of the maximum theoretical limit can be achieved. To demonstrate this, two preprototype concentrators, each having a geometric concentration of 248:1 for a 0.635c… more
Date: March 7, 1985
Creator: O`Gallagher, J. J.
Partner: UNT Libraries Government Documents Department
open access

Titanium-getter testing for TMX-U

Description: This report summarizes the results of titanium-gettering tests performed during August and September of 1983. Several current and voltage schedules were evaluated for possible implementation with TMX-U's computer-controlled getter system. The tests were performed using 1/8-inch wire composed of 85% Ti and 15% Ta. Measurements of wire temperature as a function of getter current were made. We performed glow discharge cleaning (GDC) of the vessel with wires in place to determine if GDC had any adv… more
Date: March 7, 1985
Creator: Clower, C.A. Jr.
Partner: UNT Libraries Government Documents Department
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