Radiation shielding glass having an improved gamma irradiation b

Details Radiation shielding glass having an improved gamma irradiation b Radiation shielding glass having an improved gamma irradiation b

1990-02-09

1991-10-15

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 55, 501 60, 501 61, 501 65, C03C 306, C03C 3076, C03C 3102, C03C 3108

Patent

active

050574647

ABSTRACT:
A radiation shielding glass consisting esentially of 40.0% to 60.0% SiO.sub.2, 25.0% to 45.0% of PbO, 1.5% to 2.0% CeO.sub.2, 4.5% to 12.0% Na.sub.2 O, 2.0% to 9.0% K.sub.2 O, 0% to 5.0% B.sub.2 O.sub.3, and 0% to 10.0% BaO, Na.sub.2 O/(Na.sub.2 O+K.sub.2 O) being 0.5 to 0.8. The glass has a high radiation shielding capacity and is excellent in a resistance to browning by the gamma ray irradiation and an improved dielectric breakdown. The glass is useful for a window glass of an irradiation room of the gamma ray.

REFERENCES:
patent: 2782319 (1957-02-01), McAlpine et al.
patent: 2805166 (1957-09-01), Loffler
patent: 2856303 (1958-10-01), Armistead
patent: 3907584 (1975-09-01), Wada et al.
Kingery et al., Introduction to Ceramics, Second Edition pp. 91-108.

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