TY - RPRT TI - Transport of large particles released in a nuclear accident AB - Highly radioactive particulate material may be released in a nuclear accident or sometimes during normal operation of a nuclear power plant. However, consequence analyses related to radioactive releases are often performed neglecting the particle nature of the release. The properties of the particles have an important role in the radiological hazard. A particle deposited on the skin may cause a large and highly non-uniform skin beta dose. Skin dose limits may be exceeded although the overall activity concentration in air is below the level of countermeasures. For sheltering purposes it is crucial to find out the transport range, i.e. the travel distance of the particles. A method for estimating the transport range of large particles (aerodynamic diameter d{sub a} > 20 {mu}m) in simplified meteorological conditions is presented. A user-friendly computer code, known as TROP, is developed for fast range calculations in a nuclear emergency. (orig.) (23 refs., 13 figs.). AU - "Poellaenen, R" AU - "Toivonen, H" AU - "Lahtinen, J" AU - "Ilander, T" KW - "54 ENVIRONMENTAL SCIENCES" KW - "22 NUCLEAR REACTOR TECHNOLOGY" KW - "EARTH ATMOSPHERE" KW - "RADIOACTIVITY TRANSPORT" KW - "FISSION PRODUCT RELEASE" KW - "METEOROLOGY" KW - "PARTICLE SIZE" KW - "REACTOR ACCIDENTS" KW - "T CODES" KW - "THREE-DIMENSIONAL CALCULATIONS" KW - "WIND" DO - https://doi.org/ UR - https://www.osti.gov/etdeweb/servlets/purl/235902 PB - CY - Finland PY - 1995 DA - 1995-10-01 LA - English J2 - [] VL - C1 - Finnish Centre for Radiation and Nuclear Safety (STUK), Helsinki (Finland) C2 - C3 - STUK-A-125 C4 - C5 - INIS; OSTI as DE96624094 L3 - Other Information: PBD: Oct 1995 ER -