X-RAY AND GAMMA-RAY SHIELDING GLASS

• Main Authors: ANTOINE CARRE, MARTA KRZYZAK, LOTHAR NIESSNER, ANDREAS HEGEMANN
• Format: Patent
• Language: English; Japanese
• Published: 10.08.2017
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

PROBLEM TO BE SOLVED: To provide a glass composition having high transparency and allowing for X-ray and gamma-ray shielding.SOLUTION: The glass composition for X-ray and gamma-ray shielding is provided that contains, by mass%, 10% to 35% of SiO, in particular 20% to 35% of SiO, 60% to 70% of PbO, advantageously 60% to 67% of PbO, in particular 60% to 65% of PbO, 0 to 8% of BO, in particular 1% to 5% of BO, advantageously 1.5% to 2.5% of BO, 0% to 10% of AlO, in particular 0% of AlO, 0% to 10% of NaO, in particular 0.05% to 2% of NaO, 0% to 10% of KO, in particular 0.1% to 3% of KO, 0% to 0.3% of AsO, 0% to 2% of SbO, in particular 0.1% to 0.5% of SbO, 0% to 6% of BaO, in particular 0% of BaO and further 0.05% to 2% of ZrO, in particular 0.1% to 2% of ZrO, advantageously 0.5% to 2% of ZrO, in particular 1% to 2% of ZrO.SELECTED DRAWING: Figure 1 【課題】高い透明性を有し、Ｘ線及びガンマ線の遮蔽を可能にするガラス組成物の提供。【解決手段】質量％で、１０％〜３５％のＳｉＯ2、特に２０％〜３５％のＳｉＯ2、６０％〜７０％のＰｂＯ、有利には６０％〜６７％のＰｂＯ、特に６０％〜６５％のＰｂＯ、０〜８％のＢ2Ｏ3、特に１％〜５％のＢ2Ｏ3、有利には１．５％〜２．５％のＢ2Ｏ3、０％〜１０％のＡｌ2Ｏ3、特に０％のＡｌ2Ｏ3、０％〜１０％のＮａ2Ｏ、特に０．０５％〜２％のＮａ2Ｏ、０％〜１０％のＫ2Ｏ、特に０．１％〜３％のＫ2Ｏ、０％〜０．３％のＡｓ2Ｏ3、０％〜２％のＳｂ2Ｏ3、特に０．１％〜０．５％のＳｂ2Ｏ3、０％〜６％のＢａＯ、特に０％のＢａＯを含み、更に、０．０５％〜２％のＺｒＯ2、特に０．１％〜２％のＺｒＯ2、有利には０．５％〜２％のＺｒＯ2、特に１％〜２％のＺｒＯ2を含む、Ｘ線およびガンマ線を遮蔽するガラス組成物。【選択図】図１