Abstract

A process has been developed by which boric acid containing an organic substance as a minor constituent, can be melted and super-cooled to form a homogeneous glass under controlled vapor pressure of water. This technique assures the attainment of a reproducible fluidity of the melt. The total water content of the glass has been determined to be about 10 percent by weight. Plates of the glass having dimensions of 1×20×40 mm were routinely prepared. These remained highly transparent for several weeks in a vacuum desiccator.

© 1954 Optical Society of America

Fabrication of Boric Acid Glass for Luminescence Studies*

M. Kasha
J. Opt. Soc. Am. 38(12) 1068-1073 (1948)

A Luminescent Screen for Use with Very Low-Velocity Electrons

S. F. Kaisel and C. B. Clark
J. Opt. Soc. Am. 44(2) 134-135 (1954)

Experimental Photographic Systems Based on Phosphotungstic Acid

Lyman Chalkley
J. Opt. Soc. Am. 44(9) 699-702 (1954)

Precision Concentration Analysis of D₂O/H₂O by Means of Phase Contrast Refractometry

E. Ingelstam, E. Djurle, and L. Johansson
J. Opt. Soc. Am. 44(6) 472-477 (1954)

Excitation of Zinc Oxide Phosphors by Low-Energy Electrons

Ross E. Shrader and S. F. Kaisel
J. Opt. Soc. Am. 44(2) 135-139 (1954)