There is even radiaton hardened glas, i just looked it up. https://www.schott.com/advanced_optics/english/products/optical-materials/optical-glass/radiation-re

There is even radiaton hardened glas, i just looked it up. https://www.schott.com/advanced_optics/english/products/optical-materials/optical-glass/radiation-resistant-glasses/index.html https://www.schott.com/advanced_optics/english/products/opti... Would have a tint though.