Abstract

The inspection window of observation devices that are used when working with high-intensity gamma and neutron radiation or under extreme conditions, including when the consequences of accidents at atomic power plants are being cleaned up, must provide the necessary level of protection of the operators and the greatest observation angle of the site. The relationships that have been developed for the thicknesses of special optical materials make it possible to achieve an attenuation factor of gamma radiation of up to 5000 when the dose rate is as much as 5×10<sup>6</sup>??R/h. The use of optical components with raster-conical structures creates the possibility of expanding the angular fields and of varying the direction of the viewing axes without changing the dimensional and composition parameters.

© 2013 Optical Society of America

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