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Final Report on Swell Detection by Pusher Method

Description: Experiments wee performed to evaluate the feasibility of detecting swelled slug elements in Hanford reactors by measuring the force necessary to push the slug column in its tube. These experiments are described. The results indicate the method presents no unsolvable problems.
Date: November 11, 1944
Creator: Shank, W. Bradford & Frankel, W.
Item Type: Refine your search to only Report
open access

The Fission Neutron Spectrum of 25

Description: Abstract: "Photographic plates have been used to measure the energy of neutrons from the fission of 25. The spectrum as inferred from the ranges of 850 protons recoiling in the forward direction shows a very wide maximum at ~1.5 Mev with an exponentially decreasing high energy tail which extends beyond 7 Mev. The minimum energy neutrons recorded were ~700 kv. If the spectrum is extrapolated to zero, one finds that this average neutron energy is about 1.85 Mev. The stopping power of the plates w… more
Date: February 11, 1944
Creator: Richards, Hugh T. & Perlman, Isadore
Item Type: Refine your search to only Report

Newsmap. For the Armed Forces. 274th week of the war, 156th week of U.S. participation

Description: Front: Text describes action on various war fronts: Allied pressure increases, Cologne approaches attacked, Saar Valley threatened; Red Army strikes; Ravenna falls; Pacific Theatre active; Kweiyang evacuated; Japs retreat in Burma. Maps: Soviet drive; Cologne Plain; Winter offensive; Japanese threat; Leyte. Inset map: Philippines. Back: Photographs and llustrations highlight various infantry weapons: guns, rifles, pistols, machine guns, mortars and other weapons.
Date: December 11, 1944
Creator: [United States.] Army Service Forces. Army Information Branch.
Item Type: Refine your search to only Poster
open access

Properties of Uranyl Fluoride

Description: Abstract: Pure UO2F2 is made by reaction between anhydrous HF and pure UO3. Although it is difficult to prepare free of water, it is not very hygroscopic. Prolonged heating at 100-105 degrees releases 99.9% of the water in an aqueous solution; the rate of loss of water is very small after saturation is reached. X-ray diffraction data give a density of 6.2 for the solid. The density of a 1.004 M solution is 1.274; the density of a saturated solution (5.130 M) is 2.400. The densities of F-9 s… more
Date: September 11, 1944
Creator: Dean, G. R.
Item Type: Refine your search to only Report
open access

Recalculation of the Critical Size and Multiplication Constant of a Homogeneous UO2 - D2O Mixtures

Description: The multiplication constant and optimal concentration of a slurry pile is recalculated on the basis of Mitchell's recent experiments on resonance absorption. The smallest chain reacting unit contains 45 to 55 m3 of D2O.
Date: February 11, 1944
Creator: Wigner, Eugene Paul, 1902-1995; Weinberg, Alvin Martin, 1915-2006 & Stephenson, J.
Item Type: Refine your search to only Report
open access

The Slow Neutron Transmission of Be Metal as Measured by a Neutron Beam Spectrometer in the Energy Region 0.004 eV to 50 eV

Description: Abstract. Slow neutron transmission measurements as a function of the time of flight of the incident neutron have been made for three different thicknesses of Beryllium. The energy region from 0.004 eV to 50 eV was investigated using the Columbia neutron beam spectrometer system. Particular emphasis was placed on the very low energy region (from 0.004 eV tp 0/2 eV or from 0.6 to 5 [length]) where pronounced crystal interference effects were observed. The effective slow neutron cross section (in… more
Date: October 11, 1944
Creator: Rainwater, Leo James, 1917- & Havens, W. W. (William Westerfield), Jr., 1920-2004
Item Type: Refine your search to only Report
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