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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.
Douglass L. Henderson, Mohamed E. Sawan, Gregory A. Moses
Fusion Science and Technology | Volume 13 | Number 4 | May 1988 | Pages 594-615
Technical Paper | ICF Target | doi.org/10.13182/FST88-A25137
Articles are hosted by Taylor and Francis Online.
Biological dose rate calculations have been performed for a point external to the diode vacuum casing of the proposed Light Ion Fusion Target Development Facility for times following an operational period of 1 month. The primary diode material considered is Type 304LN stainless steel, with an alternative material of Al-6061-T6. Using a realistic pulse-sequence calculation scheme to account for the pulsed operation mode of the facility, it is shown that for both the stainless steel and aluminum diodes the dose rates external to the diode vacuum casing are > 1 rem/h after a 1-day shutdown period. After a 1-week shutdown period, the dose rates have dropped to 90 and 12 mrem/h, respectively.