43 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Surfaces"  
Results: 1 - 24 next
open access

SRE CONTROL ROD SHIELDING REQUIREMENTS

Description: Data taken on radiation traverse of the Mark 1 control rod were analyzed. Future radiation levels for all SRE control and safety rods were predicted from this. The shielding necessary to ship a complete rod and that necessary to protect a person doing maintenance work on these rods were calculated. The unshielded gamma dose rate 1 cm from the surface of the most highly activated portion of the control rod was calculated to be 5.0 x 10/sup 4/ r/hr 14 days after shutdown following an extended pow… more
Date: October 22, 1957
Creator: Whittum, H.O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

AIRBLAST OVERPRESSURE AND DYNAMIC PRESSURE OVER VARIOUS SURFACES

Description: Static overpressure and dynamic pressure versus time over surfaces processing different physical properties were measured on two tower shots, 6 and 12. On Shot 12, three surfaces were provided: the natural desert, a water surface consisting of a flooded area, and an asphalt surface. On Shot 6, desert and asphalt areas only were available. There were 123 channels of instrumentation installed for Shot 12, and 24 for Shot 6. From the data, a system of wave-form classification was devised for overp… more
Date: September 11, 1957
Creator: Sachs, D. C.; Swift, L. M. & Sauer, F. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Influence of Lubrication on the Compactability of Magnesium-Green Salt Blends for Bomb Reduction

Description: Lubrication of die surfaces with mineral oil or Dag 217 during final compacting of UF/sub 4/--Mg blends prevented seizing. Mineral oil application after every third press allowed 18 compacts before seizing became severe. Similar application of Dag 217 allowed 78 compacts. Mixing 0.33 wt.% Ceremul "C" with the powder allowed 40 compacts. Punch clearance had little effect on seizing. (T.R.H.)
Date: June 18, 1957
Creator: Paprocki, S. J.; Carlson, R. J. & Smith, E. G., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

POLARIZATION OF NEUTRONS SCATTERED BY INTERMEDIATE AND HEAVY NUCLEI

Description: Measurements of the polarization produced in the scattering of neutrons from heavy nuclei have been carried out at neutron energies of 380 and 980 kev. The Li/sup 7/(p,n)Be/sup 7/ reaction was used as a source of polarized neutrons. Right-left asymmetries in scattering of these neutrons from several elements ranging in atomic weight from 55 to 238 were measured at scattering angles of 55, 90, and 130 deg . With few exceptions the observed polarizations vary smoothly with atomic weight. Measured… more
Date: January 1, 1957
Creator: Clement, J.D.; Boreli, F.; Darden, S.E.; Haeberli, W. & Striebel, H.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A LITERATURE SURVEY ON THE APPLICABILITY OF STEADY-STATE HEAT-TRANSFER COEFFICIENTS TO TRANSIENTS IN POWER OR IN FLOW WITH SINGLE-PHASE FLOW AND WITH TWO-PHASE FLOW

Description: A survey of all the known literature on the subject is presented. This survey consists of four parts amd two appendices, namely: response of single- phase-fluid forced-convection heat transfer to a rapid change of velocity, response of single-phase-fluid forced-convection heat transfer to a rapid change of temperature of the surface or of the incoming fluid, response of single- phasefluid free-convection heat transfer to a rapid change of the surface temperature or of the heat flux through the … more
Date: November 1, 1957
Creator: Norris, R. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Solution Corrosion Group Quarterly Report for the Period Ending July 31, 1957

Description: The second All-Ti loop, 1OOA loop H, was placed in operation for more than 400 hr with UO/sub 2/SO/sub 4/ solution at 250 deg C and -- 1000 psi. A fourth test of the mockup of the Zircaloy-2--stainless steel transition joint used in the HRT reactor vessel was completed. The joint and bellows functioned properly and were leaktight. The series of long-term runs at 200, 250, and 300 deg C with solution proposed for use in the HRT was concluded. Stainless steel and Ti stress specimens exposed durin… more
Date: July 31, 1957
Creator: Griess, J. C.; Savage, H. C.; English, J. L.; Ulrich, W. C.; Buxton, S. R.; Neumann, P. D. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mass Transfer in Low Velocity Gas Streams

Description: Experimental studies of the mixing of coaxial streams of carbon dioxide and air at ambient temperature and atmospheric pres sure were made at Reynold numbers of cal, 4-inch galvanized iron pipe. Carbon dioxide was introduced into the center of an air stream free of moisture and carbon dioxide by means of an injection tube which extended the full length of a calming section 14 feet 4 inches long. Radial concentration profiles of carbon dioxide were measured at three positions downstream. Gas sam… more
Date: June 1, 1957
Creator: Frandolig, J. E. & Fahien, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Irradiation of Uranium-Fissium Alloys and Related Compositions. Work Performed: 1956

Description: Irradiation results in the range near 1/2% burnup and 500 to 600 deg C are presented for U-fissium amd U-Mo alloys. Under these conditions both classes of alloys show quite low growth coefficients and volume increases, with a few exceptions. Water queaching either alloy from 850 deg C is shown to be unsatisfactory. The effect of an axial hole for relief of fission gases appears to be inconclusive. Surface condition of irradiated U-base alloys appears to be not quite as good as that for U-20 wt.… more
Date: September 1, 1957
Creator: Smith, K.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Carbide Coatings on Graphite

Description: A method has been developed for the uniform coating of graphite tubes with carbides of niobium, tantalum, and zirconinm by thermal decomposition of their respective halide vapors. Conditions of coating temperature and pressure are so chosen as to prevent the deposition of metal, but to permit the formation of the carbide as rapidly as carbon can diffuse to the surface. If the carbon diffusion can be made the rate-limiting step, the coating process becomes self- regulating and uniform thickness … more
Date: June 28, 1957
Creator: Blocher, J.M. Jr.; Ish, C.J.; Leiter, D.P.; Plock, L.F. & Campbell, I.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design Evaluation of BER (Boiling Experimental Reactor) in Regard to Internal Explosions

Description: This is the Final Report on ARF Project No. D090 (formerly M073), "Design Evaluation of BER (Boiling Experimental Reactor) in Regard to Internal Explosions." This report was prepared by Armour Research Foundation for Argonne National Laboratory and summarizes the work accomplished from the time of the Phase Report I on May 10, 1955.
Date: January 1, 1957
Creator: Porzel, F. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ultrasonics for Radioactive Decontamination

Description: Tests have been run to determine in a preliminary fashion whether ultrasonic vibration would be effective in removing mixed radioactive deposits from the inside surface of steel pipes in a heat exchanger. Different frequencies (20 KC/S, l000 KC/S) have been used at the maximum power levels conveniently attainable. Different liquids were compared for cleaning effectiveness, with and without ultrasonics. Mild stirring of water bath at room temperature produced virtually no cleaning effect on the … more
Date: November 11, 1957
Creator: Henry, G.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LOW-TEMPERATURE REFLUORINATION OF PuF$sub 6$ DECOMPOSITION PRODUCTS

Description: The use of direct refluorinntion to recover plutonium deposited in equipment by consumption and decomposition of PuF/sub 6/ gas was the subject of a brief experimental program Measurable rates of refluorination were obtained at temperatures as low as 170 C and by means of a statistically dcsigned experiment; the approximate signficance of the three variables, temperature, fluorine pressure, and fluorine flow rate, was determined. Temperature was found to be the most significant variable, and th… more
Date: March 30, 1957
Creator: Robb, W.L.; Brandon, R.J.; Myers, R.L. & Galpern, H.N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Life of HRE-3 Core Tanks

Description: ABS>Calculations have been made of the expected life of Zircaloy core tanks in the HRE-3 assuming 5 w/ml power density in the tank, considering possible cooling systems. If the inner surface film coefficient is l000 Btu/hr ft/sup 2/ deg F or better, a thick single-walled tank appears optimum. If the inner surface coefficient is only about 100, cooling of the core tank with either D20 or ThO/sub 2/ slurry appears desirable or even necessary. (auth)
Date: October 21, 1957
Creator: Larrimore, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen