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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.
J. Blons
Nuclear Science and Engineering | Volume 51 | Number 2 | June 1973 | Pages 130-147
Technical Paper | doi.org/10.13182/NSE73-A26589
Articles are hosted by Taylor and Francis Online.
Neutron-induced fission cross sections of 233U, 235U, 239Pu, and 241Pu have been measured up to 30 keV. These measurements were performed with samples cooled down to liquid nitrogen temperature and with a nominal resolution of 1 nsec/m, using the 60-MeV Saclay LINAC as a pulsed-neutron source. The agreement with previously published results is within 3% for 235 U in the energy range 60 eV to 10 keV, and 6% for 233U below 1220 eV. For 239Pu and for 241 Pu in the energy ranges 0.7 to 7 keV and 10 to 20 keV, the agreement is also within 6%. Total errors are a function of target material and incident neutron energies and hence are estimated to lie between 3 and 7%. The existence of an intermediate structure is demonstrated in the fission cross section of 239Pu.
