title: Proton radiation damage in optical filter glass.
abstract: Samples of Schott BG-39 and Hoya CM-500 blue-green filter glass were subjected to proton radiation to determine their acceptability for spaceflight. Initial testing done with 2.7 MeV protons showed negligible change in optical transmittance with doses as high as 5.2 x 10(14)protons per sq cm. Irradiation with protons of energy up to 63 MeV caused a significant reduction in transmittance in the Schott samples at doses of 5.3 x 10(12) protons per sq cm, while negligible change occurred in the Hoya samples.
authors.forename: P N
authors.initials: PN
authors.lastname: Grillot
authors.forename: W J
authors.initials: WJ
authors.lastname: Rosenberg