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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.
Sterrett T. Perkins, Dermott E. Cullen
Nuclear Science and Engineering | Volume 77 | Number 1 | January 1981 | Pages 20-39
Technical Paper | doi.org/10.13182/NSE81-A21336
Articles are hosted by Taylor and Francis Online.
We consider all 25 projectile-target combinations of the particles p, d, t, 3He, and α. We obtained nuclear plus interference elastic cross sections for such interactions by subtracting Coulomb contributions from experimental data. We present evaluated graphs of the following resulting quantities, integrated over center-of-mass scattering cosine: reaction rate, average fractional energy loss per collision, average fractional energy loss per unit path length, and average laboratory scattering cosine. This information can be used to correct energy loss rates due to Coulomb scattering, or in more exact transport calculations that account for large-angle nuclear scattering.