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A MEASUREMENT OF THE POSITIVE pi- Mu DECAY LIFETIME

Description: The lifetime for the decay of a {pi} meson into {mu} meson and neutral particle was first measured by Richardson and later by Martinelli and Panofsky. The method was the same in both cases: The fraction of {pi} mesons surviving various times of flight is measured by placing photographic detectors at various path lengths from the target. In the experiment reported here we observe the time lag between the two bursts of fluorescence due to mesons decaying in a scintillation crystal. The first burs… more
Date: May 10, 1950
Creator: Chamberlain, O.; Mozely, R.F.; Steinberger, J. & Wiegand, C.
Partner: UNT Libraries Government Documents Department
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The Decontamination of Uranium from Fission Products by the Use of the Uranyl Oxalate Precipitation Reaction

Description: Abstract: "Decontamination factors of the order of 10-4 were obtained for Beta and Gamma emitters present as fission products when uranium was precipitated from 50 mC activity level solutions as uranyl oxalate under normal uranium yield conditions for three cycles (~60%). Factors of the order of 10-3 were obtained by the use of this reaction with similar solutions under relatively high uranium yield conditions for three cycles (~90%). The uranium peroxide precipitation reaction proved to be of … more
Date: May 10, 1951
Creator: Kelchner, B. L.
Partner: UNT Libraries Government Documents Department
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Review of Columbia River studies program -- H. I. Development Division

Description: In view of current work on the Columbia River by the Biology Division and Development Division of the Health Instrument Divisions and the contemplated studies of the US Public Health Service Group new at Hanford, it was suggested that the groups review their programs related to studies of the Columbia River. The work carried out by the Control Functions Section of the Health Instrument Division in this respect is reviewed in outline form. Some of the studies are jointly carried out by the Contr… more
Date: May 10, 1951
Creator: Singlevich, W.
Partner: UNT Libraries Government Documents Department
open access

Mechanical and physical properties of uranium. Chapter 8 of nuclear metallurgy lectures

Description: A knowledge of the mechanical and physical properties of uranium is important in understanding its pile behavior. The effects of irradiation on the properties of uranium will be dealt with in another chapter. However, it is important to know and understand the pre-irradiation properties of uranium prior to investigating the effects of irradiation. This chapter discusses the mechanical and physical properties of uranium.
Date: May 10, 1955
Creator: Hueschen, R. E.
Partner: UNT Libraries Government Documents Department
open access

Experimental investigation of deposition by boron-containing fuels in turbojet combustor

Description: Report presenting an investigation conducted with trimethyl borate azeotrope and pentaborane fuels in a turbojet combustor. The primary purposes of the study were to determine the effect of boron oxide deposits on the turbine-nozzle area, combustor pressure loss, temperature distribution, and combustion efficiency. Three distinct boron deposit patterns were noted in the investigation.
Date: May 10, 1957
Creator: Kaufman, Warner B.; Branstetter, J. Robert & Lord, Albert M.
Partner: UNT Libraries Government Documents Department
open access

Performance at High Temperatures and Pressures of an Annular Turbojet Combustor Having Articulated Liner Walls

Description: Report discussing the performance of an experimental quarter-sector annular combustor at conditions simulating supersonic flight of a cooled-turbine engine, as well as 20 different modification to the design. The final configuration was found to show no structural failures and little or no warping of liner parts after 40 hours of operation.
Date: May 10, 1957
Creator: McCafferty, Richard J.; Wear, Jerrold D. & Cook, William P.
Partner: UNT Libraries Government Documents Department
open access

The transonic characteristics of 17 rectangular, symmetrical wing models of varying aspect ratio and thickness

Description: Report presenting an investigation to determine the aerodynamic characteristics of a series of thin, rectangular wings in the 16-foot high-speed wind tunnel using the transonic bump technique over a range of Mach and Reynolds numbers. Lift, drag, and pitching moment characteristics are presented for wings of 4 different aspect ratios and NACA 63A0XX sections and with 5 different thickness-to-chord ratios.
Date: May 10, 1951
Creator: Nelson, Warren H. & McDevitt, John B.
Partner: UNT Libraries Government Documents Department
open access

Theoretical performance of lithium and fluorine as a rocket propellant

Description: Theoretical performance for liquid lithium and liquid fluorine as a rocket propellant was calculated with assumptions both of equilibrium and frozen composition during expansion. Parameters included were specific impulse, combustion-chamber temperature, nozzle-exit temperature, composition, mean molecular weight, characteristic velocity, coefficient of thrust, and ratio of nozzle-exit area to throat area. For chamber pressure of 300 pounds per square inch absolute and expansion to 1 atmosphere,… more
Date: May 10, 1951
Creator: Gordon, Sanford & Huff, Vearl N.
Partner: UNT Libraries Government Documents Department
open access

The Stability of the Compression Cover of Box Beams Stiffened by Posts

Description: "An investigation is made of the buckling of the compression cover of post-stiffened box beams subjected to end moments. Charts are presented for the determination of the minimum post axial stiffnesses and the corresponding compressive buckling loads required for the compression cover to buckle with nodes through the posts. Application of the charts to design and analysis and the limitations of their use are discussed" (p. 1087).
Date: May 10, 1950
Creator: Seide, Paul & Barrett, Paul F.
Partner: UNT Libraries Government Documents Department
open access

A biharmonic relaxation method for calculating thermal stress in cooled irregular cylinders

Description: A numerical method was developed for calculating thermal stresses in irregular cylinders cooled by one or more internal passages. The use of relaxation methods and elementary methods of finite differences was found to give approximations to the correct values when compared with previously known solutions for concentric circular cylinders possessing symmetrical and asymmetrical temperature distributions.
Date: May 10, 1951
Creator: Holms, Arthur G.
Partner: UNT Libraries Government Documents Department
open access

Some studies of axisymmetric free jets exhausting from sonic and supersonic nozzles into still air and into supersonic streams

Description: Report presenting some experimental and theoretical studies of axisymmetric free jets exhausting from sonic and supersonic nozzles into still air and into supersonic streams as a way to investigate problems associated with propulsive jets. A variety of variables for each case are considered, including jet Mach number, nozzle divergence angle, jet static-pressure ratio, free-stream Mach number, and specific heat ratios.
Date: May 10, 1955
Creator: Love, Eugene S. & Grigsby, Carl E.
Partner: UNT Libraries Government Documents Department
open access

The Effect of Silicon in the Reprocessing of a Uranium Aluminum Alloy

Description: The insoluble residues produced during the reprocessing of certain nuclear fuel elements containing aluminum, silicon, and uranium were investigated with respect to particle size, shape and distribution, composition, and surface- active tendencies. The fuel material samples studied contained from 0.4 to 7.0% silicon by weight (the high analysis represents a cast base AlSi alloy). The fuel materials were dissolved in mercury-catalyzed nitric acid. Two types of solid residue were produced by actu… more
Date: May 10, 1958
Creator: Parrett, O. W. & Rohde, K. L.
Partner: UNT Libraries Government Documents Department
open access

Tabulation of radioactive liquid waste disposal facilities

Description: The following lists describe facilities in the Hanford project for disposal of radioactive liquid waste into the ground. Most are for planned disposals, but included are several which were not intended to become contaminated, but did, and several others which may be expected to become contaminated similarly. Not included are sanitary, powerhouse and a few other liquid disposal facilities which may receive only insignificant amounts of radioactive material. The lists do not include solid waste d… more
Date: May 10, 1956
Creator: Clukey, H. V.
Partner: UNT Libraries Government Documents Department
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Ultrasonically Bond Testing Hanford Fuel Elements

Description: Ultrasonic equipment has been developed for nondestructive testing of Hanford fuel elements. The ultrasonic method has replaced the Frost Test for bonding layer inspection in the Hanford canning line, and provides more accurate and reliable results at lower cost. The method has also been adopted to the testing of new fuel elements for which no other method is available.
Date: May 10, 1956
Creator: Worlton, D. C.
Partner: UNT Libraries Government Documents Department
open access

Mechanical and Physical Properties of Uranium: Chapter 8 of Nuclear Metallurgy Lectures

Description: A knowledge of the mechanical and physical properties of uranium is important in understanding and explaining its pile behavior. The effects of irradiation on the properties of uranium will be dealt with in another chapter. However, it is important to know and understand the pre-irradiation properties of uranium prior to investigating the effects of irradiation.
Date: May 10, 1955
Creator: Rueschen, R. E.
Partner: UNT Libraries Government Documents Department
open access

The DD and TD Cross Sections

Description: The total cross sections of the reactions DDp, DDn, TD at 10 kev to 10 Mev are estimated from a review of the experimental data up to January 1951. Maxwell averages for DDp and TD computed from these estimates are given, together with some fitted analytic expressions provided for machine use. A collection of the identifiable earlier estimates is also included for reference and for comparison with the new figures. For relative order of magnitude purposes, cross sections and the derived Maxwell a… more
Date: May 10, 1951
Creator: Tuck, J L
Partner: UNT Libraries Government Documents Department
open access

Chemistry Division Quarterly Progress Report for Period Ending March 31, 1951

Description: Quarterly technical report including reports on chemistry of source, fissionable, and structural elements, nuclear chemistry, radio-organic chemistry, chemistry of separations processes, chemical physics, radiation chemistry, and instrumentation. [From Abstract]
Date: May 10, 1951
Creator: Lind, S. C.; Boyd, G. E. & Bredig, M. A.
Partner: UNT Libraries Government Documents Department
open access

Free-flight investigation to determine some effects of tail damping and wing-tail interference on the rolling effectiveness of ailerons and a spoiler on a modified-delta wing at Mach numbers from 0.6 to 1.5

Description: Report presenting an investigation to determine some effects of tail damping and wing-tail interference on the rolling effectiveness of ailerons and a spoiler on a modified-delta wing. Results regarding the effect of adding fixed tail surfaces, effect of moving the horizontal tail out of the plane of the wing, and a comparison with theory are provided.
Date: May 10, 1957
Creator: English, Roland D.
Partner: UNT Libraries Government Documents Department
open access

An Air-Borne Target Simulator for Use With Scope-Presentation Type Fire-Control Systems

Description: Report describing the design and flight evaluation of an air-borne target simulator using precomputed relative kinematics for use in tracking studies of fighter aircraft equipped with scope-presentation type fire-control systems. Testing occurred in an F86D airplane equipped with a Hughes E-4 fire-control system. Results regarding relative kinematic programming considerations and restrictions to system evaluation are provided.
Date: May 10, 1957
Creator: Foster, John V.; Fulcher, Elmer C. & Heinle, Donovan R.
Partner: UNT Libraries Government Documents Department
open access

Free-flight performance of a rotating-vane-spoiler roll control system with low actuating forces

Description: Report presenting free-flight tests of two rocket models at a range of Mach numbers to determine the control rolling effectiveness and system operation of an autorotating-vane spoiler on a missile configuration with an 80 degree delta, cruciform wing. Results indicated that the system operated fairly satisfactorily as a flicker-type roll control except at low supersonic speeds.
Date: May 10, 1957
Creator: Schult, Eugene D.
Partner: UNT Libraries Government Documents Department
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