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Nuclear Incident Response Program

Due to new NNSA regulations, we can no longer allow .EXE files (installers) to be downloaded from the website. ZIP files are now provided for all installers, so after downloading the ZIP file, extract the EXE and run the installer.


The Turbo FRMAC (TF) software automates the calculations described in Volume 1 of "The Federal Manual for Assessing Environmental Data During a Radiological Emergency”, with the latest TF software specifically implementing the April 2015 version of the manual. The manual upon which the software is based is unclassified and freely available.

Using values generated by field samples, instrument readings, or computer dispersion models, TF assesses the generated results into values that are meaningful and actionable for a decision maker at a radiological emergency. TF provides calculated results to answer questions such as:

  • Do radiation values exceed city, state, or federal limits?
  • Should crops be destroyed or can they be utilized?
  • Do residents need to be evacuated, sheltered in place, or should another action be taken?
  • How long can emergency workers work in a given area?

The software uses formulas generated by the Environmental Protection Agency (EPA), Food and Drug Administration (FDA), and other federal agencies to generate field-observable values specific to the radiological event that can be used to determine where regulatory limit values are exceeded. TF calculates values that indicate:

  • How long an emergency worker can work in the contaminated area during a radiological emergency?
  • The dose received from drinking contaminated water or milk.
  • The dose from eating contaminated food.
  • The dose expected down or upwind of a given field sample.
  • Other similar radiological health values.

TF is designed to help the decision maker in a radiological emergency understand the significance of the field sample results and modeling information, so that proper response actions can be implemented. The software provides information about the impacts a radiological emergency will have on people affected by the event. It is intended to aid the leadership in identifying the proper action needed in order to protect the public without causing widespread panic.

Turbo FRMAC Factsheet Turbo FRMAC Factsheet



What's New

Some of the most significant new features are highlighted below. A complete list of improvements and bug fixes is available by viewing the Release Notes.

  • Combined Immature Crop DRLs and Mature Crop DRLs into a single calculation because of their close similarities. The single calculation is now named "Crop DRLs". Note that calculations created in previous versions of Turbo FRMAC will open in the new version, but values may not be identical due to changes in calculations and default values.
  • Added new Worker Protection Calculation for Alpha and Beta Turn Back Limits.
  • Added Mature Root Depth as an input to the Calculation.
  • Added Weathering inputs to the Soil Ingestion Dose Calculation.
  • Created a new RTG mixture called "Plutonium RTG Inventory." The 3 RTG mixtures that previously existed have been removed.
  • Added support for silent and unattended installers. IT administrators can use this option for installing Turbo FRMAC on lab computers without requiring step-by-step install interaction and to configure common setups for all computers. Have your IT department contact us at nirp-fogbugz@sandia.gov for usage instructions.


  • All formulas located in Volume 1 of the FRMAC Assessment Manual (April 2015 edition)
  • DCFPAK 2.0
  • A radionuclide viewer for viewing nuclide information, such as decay modes, and radionuclide decay chains.
  • Ability to import/export samples and events from one instance of Turbo FRMAC to another.
  • Integration with Radionuclide Mixture Manager which allows for importation of existing mixtures, ability to create and reuse mixtures, import mixtures from RASCAL, etc.
  • Complex Particle Size Distribution that allows for calculation of values under realistic complex particle distribution scenarios.
  • ICRP 60 with both true Monodispersed Dose Coefficients and Lognormal based coefficients.
  • ICRP 107 radiation decay data.
  • ICRP 56 (FDA) data for calculation of FDA DILs.
  • Instrument Thresholds: allows indication of what energy levels field instruments can register to dynamically changes values to be consistent with instruments in use.
  • Decay Curve Export: exports the decay curve of a mixture for importation into other software tools for further analysis. Charts allow for analysis of the decay curve inside TF.
  • Ability to export table data to Microsoft Excel™.
  • Ability to share calculations via email.
  • Internal Conversion Electrons: all beta analyses now include internal conversion electrons whose energy exceeds the user specified Instrument Threshold.
  • Recent Mixtures: maintains a list of recently used mixtures for rapid and easy importation of commonly used mixtures.
  • Recent Calculations: Maintains a list of recently used calculation for quick call up.
  • Integrated Help: New integrated videos and help associated with each panel to aid in usability of the software.
  • Ribbon Style interface to provide a Microsoft Office™ like experience.

Software & Downloads

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