Steel sphere filled

This cask is identified as USA/6642/B. It has USNRC Certificate of Compliance 6642 and International Atomic Energy Agency (IAEA) Certificate of Competent Authority USDOT USA/6642/B. The cask is a 1.52 m diameter steel sphere filled with WEP as the neutron shield. It weighs 4332 kg and can carry 46 Ci (85 mg) 252cf in Special Form packaging. 

Liquified gases such as ethylene, oxygen, nitrogen, and hydrogen are typically stored in double-wall spheres, where the inner tank is suspended from the outer tank by straps or cables and the annular space between the tanks is filled with insulation. I he outer tank is not subjected to the freezing temperatures and is thus designed as a standard carbon steel sphere. 

A basic study of surface active species on the properties of filled systems was performed by Bigg( ) using coarse (5-44pm) steel spheres at volume fractions up to 0.7. This showed that addition of both a silane and a titanate coupling cigent increased the viscosity of polyethylene-steel composites. 

A 2-ft-long copper tube having a 1.0-in. inside diameter is filled with steel balls having a diameter of 1.0 in. The space between the balls is filled with water. What is the bulk density of the tube in grams per cubic centimeter (The specific gravity of steel is 7.8. The volume of a sphere is calculated by the relationship V = 1.3337rr3.)... 

The KamLAND detector, shown in Figure 5, consists of a sphere of liquid scintillator, surrounded by neutron and gamma ray absorbing buffers made of liquid paraffin and water. The liquid scintillator is enclosed in a transparent nylon composite balloon that has low permeability to radon, a background-generating contaminant. The total mass of liquid scintillator is 1000 tons, filling a sphere with a radius of about 6.3 m. A 500 ton fiducial spherical volume is defined within the main volume to help reduce backgrounds from photomultiplier tubes and from external radioactive decay sources. The liquid parafrin buffer is enclosed in a spherical stainless steel vessel, which is in turn surrounded by a water Cerenkov veto counter. The entire detector is shielded by a rock overburden of 2700 meters of water equivalent (m.w.e.). 

Stokes law is the basis of the falling sphere Auscometer shbwn in figure (5). The viscometer consists of a vertical cylindrical tube filled temperature. A steel ball, of density D and a diameter suitable to give a slow rate of fall, is now dropped through the neck of the tube, and the time of fall between two marks is determined with a stop watch. If the process is repeated with a liquid of known density and viscosity, then equation (5) gives the ratio of the two viscosities as. 

A 15-ft-diameter sphere operated at 1000 psi and 250°C requires a 4 -in.-thick wall to keep the combined pressure and thermal stress below 15,000 psi. Carbon steel, clad with stainless steel, is specified as the material of construction for the vessel. The thermal shield may be stainless steel or stainlcss-clad carbon steel, depending on which would be the less co.stly. The weight of the vessel and thermal shield is 150 tons, while 75 tons of slurry containing 200 g U/liter are required to fill the ve.ssel. 

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