| 摘要 |
A radioactive ray shield is provided to improve the radiation shield effect by using the ultrahigh molecular weight polyethylene(UHMWPE: Ultra-High Molecular Weight Polyethylene). A radiation shielding member includes a first and a second non-permeability resin layer(1) and a neutron shielding layer(2). The first and the second non-permeability resin layer are composed of the polyolefin resin or the inorganic material. The sheet is made of thermoplastic polyolefin including the ultrahigh molecular weight polyethylene of 3-15 part by weight, at least one type of part by weight , foam of 10 parts by weight, and 0.5 or 50 part by weight auxiliary foam. The compound is compose of element which is selected between the gold having diameter less than 10um, the silver, copper, the tungsten, the molybdenum, the barium, antimony, aluminum, the bismuth, the iron, the strontium, the zirconium and titanium. The porosity of the sheet is 90% through 30. |
