Metals of the greater atomic weights can be made to emit at least two types of characteristic X radiations, known as the J, or soft and the K or hard radiations. In a previous paper the wave lengths of the known lines in the L region of the tungsten X-ray spectrum were given. The work has since been extended to the characteristic lines of the K region.
Proceedings of the Iowa Academy of Science
©1917 Iowa Academy of Science, Inc.
"The X-Ray K-Radiation of Tungsten,"
Proceedings of the Iowa Academy of Science, 24(1), 201-202.
Available at: https://scholarworks.uni.edu/pias/vol24/iss1/30