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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.
R. N. Hwang
Nuclear Science and Engineering | Volume 39 | Number 1 | January 1970 | Pages 32-49
Technical Paper | doi.org/10.13182/NSE70-A21169
Articles are hosted by Taylor and Francis Online.
This paper is a sequel to the previous work on the theory and application of the multilevel formalism to Doppler effect analysis. The first part of this paper gives some quantitative results in both the resolved and the unresolved resonance regions. Detailed discussions on the interpretation and analysis of these results are given. The second part of this paper describes some further studies on the statistical behavior of the S-matrix parameters with the emphasis on the residues. Both theoretical predictions and numerical results for cases pertinent to the reactor Doppler-effect analysis are given.