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Acceptor Dopants for Lead Telluride

Description: Alternative P-type dopants such as, Th, P, and As were studied. Ingots were grown from a melt containing one at.% dopant and their electrical properties evaluated. Also, sintered pellets of PbTe were doped by exposure at high temperature to gaseous dopants. In most cases, the doping concentrations obtained were insufficient for SNAP 10A requirements. In the case of As, however, doping of Te-rich PbTe, the desired heavy doping was obtained. These preliminary studies suggest that dopants other th… more
Date: December 1961
Creator: McCaldin, J. O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Adsorption of Krypton and Xenon by Various Materials

Description: The adsorptive capacities of various inorganic adsorbents and activated charcoals for krypton and xenon were determined. Columbia-G activated charcoal had the highest capacity for both krypton and xenon at pressures from 0.01 to 125 mm Hg and temperaturens from 2 to 85 deg C. If a value of 1 is assigned to the capacity of this charcoal at 28 deg C for krypton, other charcoals range from 0.63 to 0.84, molecular sieves (except 4A) from 0.11 to 0.20, and some silica genls from 0.05 to 0.07. Variou… more
Date: December 1, 1961
Creator: Lloyd, M. H. & McNees, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

[Basketball hangs in the air during a game]

Description: Photograph of a basketball game between North Texas and Lamar Tech. An NT player, number 14, has his hands in the air on either side of the basketball. Another NT player crouches down to catch the ball before any of the Lamar players who are guarding 14 can grab it. Two Lamar players move towards NT player 14. Each athlete wears converse, tall socks, and their respective uniforms, some with the shirts tucked in, some not. In the background, spectators sit in bleachers to watch the game.
Date: December 1, 1961
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[Basketball player getting ready to pass a ball, 2]

Description: Photograph of a North Texas State University basketball game versus Lamar Tech. A North Texas player has control of the basketball on a court in a gymnasium. Two Lamar Tech opponents block him. Each athlete wears converse, tall socks, and their respective uniforms. A referee stands off to the side at half-court. A crowd sits behind the referee. The opposite end basketball goal stands in the background. A scoreboard hangs on the far wall.
Date: December 1, 1961
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[Basketball player runs with the ball]

Description: Photograph of a North Texas State University basketball game versus Lamar Tech. A North Texas player controls the basketball as he moves down alongside the edge of the baseline. A Lamar Tech defender slides down to protect the baseline. Both players wear converse, tall socks, and their respective uniforms. A referee stands next to the action with a whistle in his mouth. Behind the basketball action, a crowd looks on.
Date: December 1, 1961
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
open access

Biological Effects of Blast. Technical Progress Report

Description: The current state of knowledge relevant to biological blast effects was summarized in a selective manner. Initially, five problems of concern to those who would relate the environmental variations produced by nuclear weapons with biological response and hazard assessment were pointed out. Primary, secondary, tertiary, and miscellaneous blast effects were defined and selected interspecies experimental data of a physical and pathophysiological nature useful in estimating human response were prese… more
Date: December 1, 1961
Creator: White, C. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

[Buddy Morrow]

Description: Photograph of Buddy Morrow, a trombone player. He wears a shirt and tie while he practices with his instrument. The back of another man makes up the forefront of the photo, though Morrow is the focus.
Date: December 1, 1961
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[Buddy Morrow]

Description: Photograph of Buddy Morrow, a trombone player. He wears a shirt and tie while he practices with his instrument. Another person takes up the right foreground of the image, though Morrow is the focus.
Date: December 1, 1961
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
open access

Critical Experiments With Thoria-Urania Fuel In Heavy Water

Description: The nuclear characteristics of a variety of small reactors composed of thoria -urania fuel in heavy water were determined in a program of critical experimentation. The fuel element consisted of ceramic ThO/sub 2/-U/sup 235/ O/ sub 2/ pellets stacked to a height of 1.5 m within 0.787-cm-OD aluminum tubing. The pellets used most frequently were of 0.587-cm diameter and had a Th/U/sup 235/ atom ratio of 25. Rods containing similar pellets with only half as much U/sup 235/ were used to achieve smal… more
Date: December 1, 1961
Creator: Redman, W. C.; Kaufmann, S. G.; Plumlee, K. E. & Baird, Q. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

[Dark photo of teachers in lounge]

Description: Photograph of five teachers sitting in chairs and on a couch in the teacher lounge. They have drinks in their hands and one is reading a newspaper. The image is over-exposed so that it is very dark and there are scuff-marks on it.
Date: December 1961
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[Department workers in office]

Description: Photograph of four department workers in the office. One is working on a typewriter, two are writing things down at the desks, and the fourth is looking at some files from the shelves on the wall. There are Christmas decorations on one of the desks.
Date: December 1961
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
open access

Detection and Measurement of Nuclear Radiation

Description: The technique of radiation characterization is reviewed, with particular emphasis on new methods and their practi-cal aspects. Each type of detector is discussed in terms of its principle of operation and its applicability to various problems in counting and spectrometry. Auxiliary electronic instrumentation and the function of each instrument are described in general terms. Other topics discussed include low-level counting, absolute counting, and the mounting of radioactive sources. (137 refer… more
Date: December 1, 1961
Creator: O'Kelley, G. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

[Dorothy Holman]

Description: Photograph of Dorothy Holman. She poses at a table with the book, "Who's Who in America, 1960-1961." Another desk can be seen behind her. The number '38' appears at the bottom of the image.
Date: December 1961
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
open access

Heat Transfer With Laminar Flow in Concentric Annuli With Constant and Arbitrary Variable Axial Wall Temperature

Description: An analysis has been performed to determine the heat transfer characteristics for laminar forced-convection flow in a concentric annulus with prescribed surface temperatures. Three distinct problems were considered: (a) wall temperature prescribed at both the inside and outside wall; (b) inside wall temperature prescribed and the outside wall insulated; and (c) inside wall insulated and outside wall temperature prescribed. The solution for temperature distribution was similar to that obtained b… more
Date: December 1, 1961
Creator: Viskanta, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Index of Refraction and Dispersion of Several Gases in Cerenkov Counter Use

Description: Measurements of index of refraction as a function of gas pressure for carbon dioxide, ethane, methane, sulfur hexafluoride, Freon 13, Freon 14, and Freon 23, which are suitable for Cerenkov Counter use, are reported. These gases do not react with Al or Ag mirror coatings, or other materials used in such counters, and have indices of refraction that are large enough to permit the use of these gases at reasonable pressures. Methane and ethane are both toxic and highly explosive; the remainder of … more
Date: December 1, 1961
Creator: Niederer, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Irradiation of Metal-Fiber-Reinforced Thoria-Urania. Final Report- Metallurgy Program 6.2.4

Description: Randomly oriented fibers of either molybdenum or niobium were incorporated into hot-pressed pellets of 10, 30, and 50 wt% UO/sub 2/ in ThO/sub 2/ to improve thermal conductivity and thermal shock resistance. Pellets, 9.5 mm in diameter and 9.5 mm in length, were irradiated in NaK capsules, both bare and jacketed with Zircaloy-2, with the annulus between pellet and jacket filled with lead or helium. They were irradiated to burnups ranging up to 34 500 Mwd/T (1 0 x 10/sup 21/ fiss/cc) at central … more
Date: December 1, 1961
Creator: Neimark, L. A.; Kittel, J. H. & Hoenig, C. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Irreducible Representations of Line Groups: the Dynamics of Polymer Chains

Description: Abstract: "The symmetries of infinite polymer chain molecules are discussed using the concept of line groups. Explicit directions are given for obtaining the irreducible representations of line groups employing the formalism developed for three-dimensional space groups. Line groups containing primitive and nonprimitive operations are discussed. Detailed considerations of the line group Vh are given with specific applications to the polyethylene molecule. Directions for generating symmetry-adapt… more
Date: December 1961
Creator: Lawson, Katheryn Emanuel & Crosby, G. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MANHATTAN DISTRICT HISTORY PROJECT Y THE LOS ALAMOS PROJECT VOL. I INCEPTION UNTIL AUGUST 1945

Description: THESE TWO VOLUMES CONSTITUTE A RECORD OF THE TECHNICAL, ADMINISTRATIVE , AND POLICY-MAKING ACTIVITIES OF THE LOS ALAMOS PROJECT (PROJECT Y) FROM ITS INCEPTION UNDER THE MANHATTAN DISTRICT THROUGH THE DEVELOPMENT OF THE ATOMIC BOMB (VOL. I), AND DURING THE PERIOD FOLLOWING THE END OF WORLD WAR II UNTIL THE MANHATTAN DISTRICT RELINQUISHED CONTROL TO THE ATOMIC ENERGY COMMISSION AS OF JANUARY 1947 (VOL. II). ALTHOUGH SECURITY REGULATIONS HAVE REQUIRED SOME DELETIONS IN THE ORIGINAL TEXT OF THE TWO… more
Date: December 1, 1961
Creator: Hawkins, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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