Methods of minimising doses incurred by external exposure while moving in radiation hazardous areas

Radiation doses received by workers during their movement within areas contaminated as a result of
events and activities, leading to emergency or existing exposure situations, may provide a
substantial contribution to total external exposure during remediation work. This paper describes an
approach to minimise worker external exposure in these circumstances, based on graph theory. The
paper describes several tasks, including: searching for a route with the lowest dose, searching for
an optimal bypass with a given set of control points and searching for the optimal road network
coverage. Classical graph theory algorithms have been used (Dijkstra ’s algorithm, Chinese postman
problem and travelling salesman problem). Algorithms for solving the above mentioned problems have
been developed and were included in the information-analytical system for radiation safety. This
software has been applied for optimisation of protection during remediation work at the Andreeva Bay
site of tempor...

Source: Journal of Radiological Protection - July 27, 2017 Category: Physics Authors: K Chizhov, M K Sneve, S Shinkarev, A Tsovyanov, G M Smith, A Krasnoschekov, A Kosnikov, I Kemsky and V Kryuchkov Source Type: research