Casus – Radiological Consequences of Accidents in Nuclear Facilities
Casus – Radiological Consequences of Accidents in Nuclear Facilities
Casus is a simplified but versatile program for the evaluation of offsite radiological consequences of accidents in nuclear facilities. It may be used for conservative assessments during design of nuclear facilities as well as for realistic assessments during emergency preparedness and response.
The basic functions of Casus include a deterministic straight-line Gaussian model for atmospheric dispersion calculations and a conservative deterministic model for dose assessment. The models and parameter values are in accordance with German Accident Calculation Bases for the Guidelines for the Assessment of the Design of PWR Nuclear Power Plants to Sec. 28, para (3) of the Radiological Protection Ordinance (Act 18, 1983), Federal Minister of the Interior, Federal Gazette Nr. 245a of December 31st, 1983 and New version of Chapter 4 “Calculation of Radiation Exposure” of the Accident Calculation Bases for the Assessment of the Design of PWR Nuclear Power Plants to Sec. 28, para (3) of the Radiological Protection Ordinance (Act 18, 1983), Announcement by the Ministry of Environment, Nature Protection and Reactor Safety, June 29th, 1994, Federal Gazette No. 222a of November 26 (1995). However, the user may specify different model parameters.
Casus provides an ergonomic user interface with no need for handling any input or output files. The source term is given in the Source Term form, all parameter values are specified in the Parameters form. The interim results of the dispersion calculation are shown in the Dispersion form, and the dose results are shown in the Dose Results form.
Furthermore, Casus accommodates various additional tools for the generation of input data or for further analyses. The advantage of these tools is their direct access to the source term data, parameter values, and dose results in Casus with no need for cumbersome input or output interfaces. Nevertheless, the user may import the source term from a comma-delimited text file in the CSV (*.csv) format, which could be provided by any other suitable program.
(System requirements: Microsoft® Windows® XP with Service Pack 3, Windows Vista®, Windows® 7, Windows 8, Windows 8.1, or Windows 10)