Turbo FRMAC

Emergency button
The Turbo FRMAC analysis tool performs complex calculations to quickly evaluate radiological hazards during an emergency response by assessing impacts to the public, workers, and the food supply. Turbo FRMAC can be used to evaluate the hazard from a wide variety of radiological incidents, such as: Radiological Dispersal Devices (RDDs), Nuclear Power Plant Emergencies, Fuel Handling Accidents, Transportation Accidents, and Nuclear Detonations.

NRC-RADTRAN

Perspective of freight train on railway in summer (source: pixy.org).

The NRC Radioactive Material Transport (NRC-RADTRAN) computer code is used for risk and consequence analysis of radioactive material (RAM) transportation. A variety of RAM is transported annually within this country and internationally. The shipments are carried out by overland modes (mainly truck and rail), marine vessels, and aircraft. Transportation workers and persons residing near or sharing transportation links with these shipments may be exposed to radiation from RAM packages during routine transport operations; exposures may also occur as a result of accidents.

PAVAN

Reactor towers

PAVAN is a computer code used to estimate relative ground-level air concentrations (X/Q) for the assessment of potential accidental releases of radioactive material from nuclear facilities. These assessments are required by 10 CFR Part 50 and 10 CFR Part 100. PAVAN uses joint frequency distributions of wind direction and wind speed by atmospheric stability to estimate relative air concentration values for specific averaging time periods at specified distances.

NRCDose3

Laptop

NRCDose is a user-friendly graphical user interface (GUI) for the LADTAP Il, GASPAR II, and XOQDOQ programs which operate under all Microsoft Windows™ platforms. These Fortran codes implement NRC’s current requirements for As Low As Reasonably Achievable (ALARA) for radioactive effluents from nuclear power plants. NRCDose allows the user to enter and retrieve data through a series of windows dialogs, making the use of the program much more user-friendly and efficient than its original design.

HABIT

Control room

HABIT v2.2 is a suite of computer codes to assist in evaluating Light-Water Reactor (LWR) control room habitability in the event of accidental spills of toxic chemicals. It produces files containing tabular output that can be printed, viewed, or imported into spreadsheet programs for further uses.

HABIT v2.2 also uses a heavy-gas dispersion model, unifies the input screen of EXTRAN, DEGADIS, and SLAB, and incorporates Bitter Mc-Quaid calculation to determine which model needs to run and plot the concentration versus time outputs.

ARCON

A control room.

ARCON is a computer code used to calculate atmospheric relative concentrations (X/Q) in support of control room habitability assessments required by 10 CFR Part 50, Appendix A, General Design Criterion 19. It uses hourly meteorological data and the atmosphere’s influence (i.e., dilution and dispersion) in the vicinity of buildings to calculate the relative concentration at control room air intakes. These concentrations would be exceeded no more than five percent of the time and calculated for averaging periods ranging from one hour to 30 days in duration.

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