Chesapeake Nuclear Services, Inc
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Software Products

RETSCode

RETSCode is user-friendly Microsoft WindowsTM PC-based software that performs all of the calculations and reporting as required by a nuclear power plant's Radioactive Effluent Technical Specifications (RETS) and Offsite Dose Calculation Manual (ODCM). RETSCode has been designed for easy customization to each plant's ODCM and operating procedures; it is not an off-the-shelf, one-size-fits-all product.

Liquid and Gaseous Release Permits and Compliance Reports

  • Release permits customized to existing plant procedures
  • Radiation Monitor Setpoints and Release Rates
  • Monthly and Quarterly Radiochemical Analysis
  • Dose Assessments for Appendix I Compliance
  • Annual Effluent Report in Reg. Guide 1.21 format

Plant-Specific Configuration

  • Customized to plant specific ODCM requirements - dose methodology, release points and radiation monitors
  • Ability to integrate radiation monitor specific radionuclide sensitivity
  • Customized ALARA action levels and dose constraints

RETSCode additionally incorporates NRCDose (our interface to the NRC’s 10CFR50, Appendix I evaluation codes, LADTAP, GASPAR and XOQDOQ) to provide expanded capabilities for evaluating radioactive effluents. These codes can be used for evaluating annual meteorological data, performing annual assessments of population doses, and evaluating dose consequences at other specified locations.

User access to the functionality of RETSCode is incrementally controlled by password and access level control. User password data is stored in encrypted database files. RETSCode also contains an audit function which tracks all changes made to certain sections of the program. This information can be viewed either on screen or via a printed report. The Configuration History report will show the section updated, the user and the date and time the change was made. A description of the update is also provided.

Screenshots                                    Data Sheet (1008 kb)

NRCDose

NRCDose is user-friendly Microsoft WindowsTM PC-based software which provides an interface for the industry standard LADTAP II, GASPAR II, and XOQDOQ programs. It is essentially a WindowsTM version of NRC's 10CFR50, Appendix I Implementation codes. These codes implement NRC's current requirements for ALARA for radioactive effluents from nuclear power plants.

LADTAP II, GASPAR II, and XOQDOQ were originally written for mainframe computers, using the FORTRAN programming language. While still utilizing the proven FORTRAN computational modules, 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. This graphical interface also allows the user to create sets of data that can be named and retrieved at a later date for review or modification.

LADTAP - Liquid Pathway Dose Modeling

  • Regulatory Guide 1.109
  • Fish and Invertebrate Ingestion
  • Drinking Water
  • Irrigated Crops
  • Shoreline and Boating
  • Recreational and Population Doses
  • ALARA Cost-Benefit Evaluation

GASPAR - Gaseous Pathway Dose Modeling

  • Regulatory Guide 1.109
  • Noble Gas Direct Exposure
  • Inhalation Pathway
  • Infant Milk Ingestion
  • Deposition and Food Ingestion
  • Individual and Population Doses
  • ALARA Cost-Benefit Evaluation

XOQDOQ - Atmospheric Dispersion Modeling

  • Regulatory Guide 1.111
  • X/Q, Annual Average Dispersion
  • D/Q, Particulate and Radioiodine Deposition
  • Intermittant releases - containment purge, decay tank releases
  • Output formatted for direct input to GASPAR

Screenshots                                                      Data Sheet (116 kb)

 
 
   
 
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