There are several codes or software used to predict the distribution of fallout after nuclear explosion, such as Hazard Prediction and Assessment Capability (HPAC), Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) and Defense Land Fallout Interpretive Code (DELFIC). For the purpose of predicting on-site dose contours, DELFIC has better performance for its computation starts in an earlier time after explosion. Five nuclear fallout prediction codes are studied to determine which code predicts the most accurate fallout dose-rate contours with low computation time. These codes consist of DELFIC and several modified models based on DELFIC, such as Diffusive Transport Module modified with wafer thrower, Cloud Rise Module modified with Hill vortex model and Diffusive Transport Module modified to explain effect of 2-D stabilized cloud. These codes were compared with the Defense Nuclear Agency’s (DNA) DNA 1251-1-EX, Compilation of Local Fallout Data from Test Detonations 1945-1962 Extracted from DASA 1251, using NAD method. In the comparing of small boy test, it appears that there are few differences between different codes. Efforts will be made to find which model predicts less false negative or less false positive and the reasons of these faults will be studied.
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2013 21st International Conference on Nuclear Engineering
July 29–August 2, 2013
Chengdu, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5580-5
PROCEEDINGS PAPER
A Comparison in the Accuracy of Mapping Nuclear Fallout Patterns Using DELFIC and Several Modified Models Based on DELFIC
Jian-bo Shang,
Jian-bo Shang
Tsinghua University, Beijing, China
Northwest Institute of Nuclear Technology, Xi’an, Shaanxi, China
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Quan-lin Shi,
Quan-lin Shi
Northwest Institute of Nuclear Technology, Xi’an, Shaanxi, China
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Qun-shu Wang
Qun-shu Wang
Northwest Institute of Nuclear Technology, Xi’an, Shaanxi, China
Search for other works by this author on:
Jian-bo Shang
Tsinghua University, Beijing, China
Northwest Institute of Nuclear Technology, Xi’an, Shaanxi, China
Quan-lin Shi
Northwest Institute of Nuclear Technology, Xi’an, Shaanxi, China
Qun-shu Wang
Northwest Institute of Nuclear Technology, Xi’an, Shaanxi, China
Paper No:
ICONE21-16092, V003T06A036; 6 pages
Published Online:
February 7, 2014
Citation
Shang, J, Shi, Q, & Wang, Q. "A Comparison in the Accuracy of Mapping Nuclear Fallout Patterns Using DELFIC and Several Modified Models Based on DELFIC." Proceedings of the 2013 21st International Conference on Nuclear Engineering. Volume 3: Nuclear Safety and Security; Codes, Standards, Licensing and Regulatory Issues; Computational Fluid Dynamics and Coupled Codes. Chengdu, China. July 29–August 2, 2013. V003T06A036. ASME. https://doi.org/10.1115/ICONE21-16092
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