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The Elimination of Microwave Reflections

Description: Abstract: "The reflections of microwaves from the walls of a plasma-containing vessel are studied. The probable cause of the reflections is discussed, and several suggestions are made for eliminating the reflections from the waveguide in the vessel and particularly from the pyrex vessel wall and copper tubing surrounding the pyrex. Quarter-wave-thick carbon-filled plastics or glasses having a very low vapor pressure room most promising when placed inside the pyrex cylinder. BaTiO3 appears to be… more
Date: February 1, 1955
Creator: Beard, David
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of a Decelerating Grid on Current from an Ion Source

Description: Abstract: "A theoretical criterion is given for the conditions under which the ions from an ion source may be decelerated by a decelerating grid, following the accelerating grid which extracts ions from the emitter, without causing a reduction in the current supplied by the source."
Date: February 23, 1955
Creator: Bing, George F., 1924-; Gardner, C. S. & Northrop, Theodore G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Immobilized Plasma in a Nonuniform Field : (IBM Machine Code Title "PLANOUNF1")

Description: Abstract: "The self-consistent equations have been found for a plasma which lies in a mainly unidirectional magnetic field, which has a circular symmetry and which has a harmonic variation in the direction of the magnetic field. The equations have been solved in two cases, 1) where the harmonic variation of the field is finite and the plasma is weak, and 2) where the plasma is strong but the harmonic variation of the field is weak. The configurations thus found can form an important starting po… more
Date: February 18, 1955
Creator: Tonks, Lewi, 1897-1971
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Alpha Half-Life of the Isotope Pu-241

Description: A plutonium solution of known Pu-241 content was purified by solvent extraction techniques to remove uranium and americium impurities. Portions of this purified solution were then analyzed for U-237 as a function of time. Since the growth of U-237 occurs directly by the alpha decay of Pu-241, these measurements provided sufficient data for calculation of the Pu-241 alpha half-life, which was found to be 2.91 ± 0.50 x 10⁵ years.
Date: February 15, 1955
Creator: Gift, M. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Examination of Irradiated Uranium-Chromium Alloy Slugs

Description: Production Test 313-105-13-M authorized the irradiation of a uranium - 0.4 atomic per cent chromium alloy to determine the relative stability of this material during irradiation. Five tubes, each containing six four-inch alloy slugs, were irradiated to exposures ranging from 156 to 834 MWD/T. This report describes the results of the visual examination of the bare uranium alloy slugs and the results of the test to determine slug breaking strength. The breaking strength of both the U-Cr alloy slu… more
Date: February 14, 1955
Creator: Kratzer, W. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stable Isotope Research and Production Division Semiannual Progress Report

Description: The Spectroscopy Research Laboratory is concerned with research and development in the fields of nuclear magnetic resonance, microwaves, infrared and optical spectroscopy, spectrochemistry, and x rays. Research is directed toward fruitful methods of isotope analysis; new element and compound analytical methods having application to immediate Laboratory or long-range commission needs; and fundamental research on isotopes, elements, and compounds. The work is reported on a project basis to give a… more
Date: February 18, 1955
Creator: Keim, C. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculations of the Critical Mass of UF6 as a gaseous Core, with Reflections of D2O, Be and C

Description: A class of critical assemblies has been considered in which the core consists of an oralloy bearing gas at more or less standard pressure and temperature and the reflector is an efficient moderator with a small thermal capture cross section. Age and diffusion theory have been applied to compute the probability that a fast neutron is thermalized by the reflector and them captured by the core. It is first assumed that fast or epithermal neutrons do not interact wit the core and it is later shown … more
Date: February 1955
Creator: Bell, George I., 1926- & Goldstein, Max
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Examination of Zirconium Exposed to 190 MWD/AT

Description: A production test composed of preformed zirconium samples was prepared by R. S. Kemper of the Physical Metallurgy Unit⁽¹⁾ to determine the effect of exposure time and the influence of prior mechanical cold work on changes occuring [sic.] during irradiation. The first section was delivered to Radiometallurgy Unit is April, 1954, for examination after an exposure of 190 MWD/AT.
Date: February 11, 1955
Creator: Kelly, W. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Penetration of Respiratory Protective Equipment by Ruthenium at Building 202-S

Description: The four types of respirator cartridges used at the 202 S Building were tested against aerosols found at that location, and in the laboratory against non-radioactive gaseous ruthenium tetroxide. Positive penetration of two types of cartridges was shown with one process aerosol. Gaseous ruthenium tetroxide penetrated all types of cartridges tested. Leaks were found in some of the cartridges. Particle size of aerosol particles was measured by means of cascade impactor samples and electron photomi… more
Date: February 21, 1955
Creator: Gill, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Automatic In-Line Monitor for pH, Gamma Activity and Uranium in the Metal Recovery Plant

Description: In connection with the development of in-line analytical equipment for monitoring pH, gamma activity and uranium concentration in process streams, experiments and tests were carried out during the past year and a half in the Metal recovery Plant on a pH monitor for the hydrogen ion concentration in neutralized waste, a continuous gamma activity monitor on the RCU, an automatic photometer for uranium in RAF, and an automatic polarograph for uranium in RAW. This letter is written to present up-to… more
Date: February 18, 1955
Creator: Reas, W. H.; Connally, R. E.; Koyama, K.; Michelson, C. E. & Van Meter, W. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Specifications for WAPD Loop

Description: Specifications for the proposed in-pile loop to be placed in the Hanford Reactor. The the purpose of the proposed installation of an irradiation facility accounting to a high pressure, high temperature recirculating loop for the Westinghouse Atomic Power Division (WAPD) is to test the integrity of fuel specimens. This report, in support of the feasibility study, cost estimates, and schedule, presents design specifications for the loop.
Date: February 16, 1955
Creator: Berberet, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Monte Carlo Estimation of the High Energy Neutron Flux Distribution in the ORNL Graphite Reactor

Description: The flux through a given region is proportional to the total lengths of the neutron flight paths that intersect that region. The analytical Monte Carlo procedure manufactured neutron flight paths and totaled the lengths of all paths intercepted by the regions illustrated in Figure 1. The procedure was designed to utilize the various symmetries in the lattice. / Consider a portion of the lattice whose planar cross-section is shown in Figure 5. If R is the region in which the flux is to be estima… more
Date: February 23, 1955
Creator: Moshman, Jack
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Some Preliminary Considerations Concerning the Expected Ovel-All Expansion of Barium Titanate Ceramic

Description: A preliminary mathematical study is made of the maximum expected expansion of barium titanate ceramic. It is noted that there is insufficient physical evidence for a complete answer and some possible mathematical models are discussed and compared.
Date: February 7, 1955
Creator: Kleinecke, D. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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