Accession Number : AD1050039


Title :   Prompt Radiation Protection Factors


Descriptive Note : Technical Report


Corporate Author : Defense Threat Reduction Agency Fort Belvoir United States


Personal Author(s) : Ghita, Gabriel


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1050039.pdf


Report Date : 01 Feb 2018


Pagination or Media Count : 35


Abstract : This report presents the methodology and the results of calculation of the prompt radiation protection factors for various building types. The transport of prompt radiation was performed using the three dimensional Monte-Carlo radiation transport code MCNP (Monte Carlo N-Particle) and the evaluation of the protection factors (ratio of dose in the open to dose in the building) is based on simulated data from the propagation of prompt gammas and neutrons emitted from low yield thermonuclear device. Scattered radiation and secondary particles produced in the atmosphere, ground, and building structures are also taken into account in the simulations. The dose used for investigation of the protection factors was absorbed soft tissue dose considered to be better associated with acute, deterministic radiation effects.


Descriptors :   gamma rays , radiative transfer , radiation effects , nuclear radiation , radiation protection , prompt neutrons , neutrons , BUILDINGS AND STRUCTURES , basements


Subject Categories : Safety Engineering


Distribution Statement : APPROVED FOR PUBLIC RELEASE