Abstract
The Nuclear Data Group of the National Bureau of Standards and the Technical Information Service of the Atomic Energy Commission are collaborating in the publication in Nuclear Science Abstracts (NSA) of summaries of new measurements of the following nuclear constants: half-life, radiation energy, relative isotopic abundance, nuclear moment, neutron cross section, reaction energy, and mass. Each issue of NSA, beginning with January 15, 1952, will carry such a summary of information published during the half-month period following that covered by the preceding summary. The summaries will be cumulated four times a year into large tables in which the new information for the three-month period will be arranged by element and isotope. The material is being prepared by the National Bureau of Standards group with the assistance of NSA readers.
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