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DTRA’s advancements in nuclear and radiological detection
A new, more complex nuclear age has begun. Echoing the tensions of the Cold War amid rapidly evolving nuclear and radiological threats, preparedness in the modern age is a contest of scientific innovation. The Research and Development Directorate (RD) at the Defense Threat Reduction Agency (DTRA) is charged with winning this contest.
Donald L. Smith, James W. Meadows, James F. Whalen
Nuclear Science and Engineering | Volume 77 | Number 2 | February 1981 | Pages 256-262
Technical Note | doi.org/10.13182/NSE81-A21359
Articles are hosted by Taylor and Francis Online.
Cross sections have been measured for the 19F(n, p)19O and 19F(n, α)16N reactions from near threshold to 9 MeV. The 238U(n, f) reaction was used as a standard for determining neutron fluence, and a cyclic activation technique enabled measurements to be made on the short half-life activities of the reaction products. The results from this work are compared with corresponding data sets from the literature. These measurements support, qualitatively, the previously reported structure in the excitation functions for these reactions.