Radiation shielding glass and method for manufacture thereof

Abstract

Provided is a radiation-shielding glass, including a glass composition in % by mass of 10 to 35% SiO2 , 55 to 80% PbO, 0 to 10% B2O3 , 0 to 10% Al2O3 , 0 to 10% SrO, 0 to 10% BaO, 0 to 10% Na2O, and 0 to 10% K2O, in which the radiation-shielding glass has a total light transmission at a wavelength of 400 nm at a thickness of 10 mm of 50% or higher. Also provided is a radiation-shielding glass which has the similar glass composition and can be used for a gamma-ray shielding glass for a PET examination.

Description

Radiation shielding glass and manufacturing method thereof technical field The present invention relates to a radiation shielding glass and a method of manufacturing the same, and more particularly to a technique for imparting effective characteristics to a radiation shielding glass while allowing the radiation shielding glass to be properly used for a desired application. Background technique In general, the walls of facilities using radiation such as medical institutions use metal lead or iron or concrete to shield radiation, but in this case, if the equipment operation room or examination room is separated by concrete, etc., You need to install windows indoors. In addition, when injecting or inhaling radiation-generating medicines, etc. to the subject, the doctor, laboratory technician, or nurse, for example, observes the subject near the subject in order to check the subject's complexion or pulse, etc. , in order not to directly expose the whole body to radiation, pro...

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Problems solved by technology

In addition, glass containing PbO used in conventional medical equipment, etc. has excellent radiation shielding ability, but the transparency is colored to the extent that it is unreasonably hindered, so there is a problem that the visibility is reduced.

Therefore, if such glass is used as a radiation-shielding window or a radiation-shielding protective screen, the condition of the examinee cannot be correctly judged visually, which may lead to a very serious problem of misdiagnosis in the medical field.

In spite of this, regarding the radiation shielding glass, it is a fact that no consideration has been given to the important characteristics concerning the transparency of the object to be inspected visually, so regarding the transparency of this glass, there appears to what extent proper visibility can be ensured The problem

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