Modeling of the Trinity nuclear explosion

NUCL 44

Thomas M. Semkow, tms15@health.state.ny.us1, Pravin P. Parekh2, and Douglas K. Haines2. (1) Wadsworth Center, New York State Department of Health and University at Albany (SUNY), P.O. Box 509, Albany, NY 12201-0509, (2) New York State Department of Health, Albany, NY 12201
The first nuclear explosion test, named the Trinity Test, was conducted on July 16, 1945 near Alamogordo, New Mexico. Using available historical details of the Manhattan Project, the Trinity Test, as well as the radionuclide data, we developed a phenomenological model of the explosion. The following test parameters were elucidated from the model: plutonium composition in the nuclear fuel, implosion compression factor, nuclear device explosive yield, uranium contribution to the explosion, size of the nuclear eyeball, total number of prompt neutrons emitted, fast-neutron fluence, slow-neutron fluence, as well as the debris deposition exponent. The parameters are compared with the published ones, when known.