Radiation-shielding transparent material, method of producing the same, and a window and a shielding block utilizing the same.

摘要

There is described a radiation-shielding transparent material comprising an aqueous solution of thallium formate with or without thallium malonate, the solution having a density of 2.5 to 4.3 g/cm<3>, a radiation length of 3.8 to 1.9 cm, and a transmission of not less than 93% for light of 400 nm wavelength. The material is produced by deoxidizing thallium formate with or without thallium malonate and dissolving the deoxidized thallium formate or thallium formate and thallium malonate in deoxidized distilled water.
<??>Such a radiation-shielding transparent material may be utilized in a window through a radiation-shielding wall surrounding a radiation source, or in a concrete shielding block.