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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Inkjet droplets of radioactive material enable quick, precise testing at NIST
Researchers at the National Institute of Standards and Technology have developed a technique called cryogenic decay energy spectrometry capable of detecting single radioactive decay events from tiny material samples and simultaneously identifying the atoms involved. In time, the technology could replace characterization tasks that have taken months and could support rapid, accurate radiopharmaceutical development and used nuclear fuel recycling, according to an article published on July 8 by NIST.
D. Schiff, S. Ziering
Nuclear Science and Engineering | Volume 7 | Number 2 | February 1960 | Pages 172-183
Technical Paper | doi.org/10.13182/NSE60-A29087
Articles are hosted by Taylor and Francis Online.
An extension of Yvon's method to two-dimensional transport theory is given. The detailed formalism in P1 approximation is presented. Some pilot calculations on two-dimensional critical sizes performed on an IBM 704 are presented both for bare and reflected reactors. A brief outline of extending this method to both three-dimensional or multigroup problems is given in the Appendix.
