Vitreous radioelectrets: materials for radiation protection of space vehicles

Using EPR, it was found that the main centers of accumulation of negative charge are electrically active phosphoric acid radical ions PO ₃ of the electronic type. Most of the studied phosphate glasses are capable of accumulating such a charge. However, the most effective of the alkaline earth modifiers is magnesium. The results obtained make it possible with a high degree of reliability to design the compositions and technology of inorganic glasses with a given set of operational properties. Tab. 1, ill. 2, bibliography: 17 titles.