Setting the standard for…

  • Independent assessments of environmental dose & risk
  • Environmental transport modeling
  • Analysis & interpretation of environmental data

Dose Reconstruction, Risk Assessment & Communication

Dose Reconstruction, Risk Assessment & Communication

RAC wrote the textbook on environmental dose and risk assessment. We develop custom tools and applications to calculate radiation doses and risks from environmental sources, and we assess the potential for health impacts from those doses. Need a dose or risk assessment for your facility? Need an audit of your emissions? Has your facility released radiation into the environment and you need to know the consequences? Contact RAC.

Performance Assessment & GoldSim Modeling

Performance Assessment & GoldSim Modeling

Performance assessments (PA) are required for regulatory compliance and are quantitative evaluations of potential releases of radioactivity from a disposal facility into the environment, as well as an assessment of the resultant radiological doses to predefined receptors. We are proficient in the application and development of models for radiological performance assessments, including GoldSim, and have proven expertise in this area.

Contaminant Release & Transport Modeling

Contaminant Release & Transport Modeling

RAC is the leader in reconstructing and estimating both historic and current releases of radioactive and chemical materials to the environment. We can also do predictive modeling for future scenarios.

Data Management, Analysis & Visualization

Data Management, Analysis & Visualization

RAC is not only the driving force behind radiation dose and risk science, but it also provides an industry-leading data management tool called RACER®. RACER® quickly turns key information into knowledge for decision makers.

The Latest News & Developments Impacting our Industry

Helen Grogan Presents at NEI Workshop, June 27–30, 2022

At the Nuclear Energy Institute’s Radiological Effluents & Environmental Workshop, held in Savannah, GA, Helen gave a joint presentation with Rick Heathwaite of PSEG Nuclear, LLC, on the benefits to PSEG of...

RAC Team Meeting, Summer 2022

RAC team members traveled from across the country to beautiful Sisters, Oregon, for their annual summer meeting. The team spent long, productive days working on current and future projects, but found time to enjoy a...

Helen Grogan Attends 69th Session of UNSCEAR

Lead writers for the Public Exposures Working Group. Helen is third from right.

John Till Featured Speaker at Health Physics Society’s 2021 Meeting

John Till presented an opening address as the G. William Morgan Lecturer at the Health Physics Society’s 66th Annual Meeting in July 2021. His presentation, "Fifty Years of Risk Assessment: 1970–2021," reviewed the...

Impacting a Wide Range of Industries

Experts who have shaped the field of radiological dose and risk assessment since 1977

Nuclear Energy

Nuclear Energy

RAC works with leaders in the nuclear energy industry, including Exelon and PSEG, to customize its online data access and analysis tool, called RACER®, to fit their specific needs for custom reporting and data presentation.

Radioactive Waste Management

Radioactive Waste Management

Radioactive waste management refers to the safe treatment, storage, and disposal of liquid, solid, and gas discharge from nuclear industry operations with the goal of protecting people and the environment. We are experienced in many aspects of radioactive waste management, including performance assessments.

Oil & Natural Gas TENORM Waste Analysis

Oil & Natural Gas TENORM Waste Analysis

Technologically enhanced naturally occurring radioactive material (TENORM) is defined as material in which the radiological, physical, or chemical properties of the naturally occurring radioactive material have been concentrated or changed in some way that increases the potential for human exposures. We are leading experts in corrective action plans and dose and risk assessments for TENORM placed in both municipal and chemical/hazardous waste landfills.

Radiological Dose & Risk Assessment

Radiological Dose & Risk Assessment

RAC is the industry leader in environmental radiological dose and risk assessments, and our team members have more than 45 years of experience in developing and applying methods to determine how people may be exposed to contaminants in the environment and in assessing the health effects associated with such exposures.

Environmental Remediation

Environmental Remediation

RAC has a proven track record for facilitating sustainable environmental remediation. Our expertise covers the spectrum from quantifying the human and environmental risks at contaminated sites to determining appropriate cleanup levels, as well as evaluating and prioritizing sites for remediation.

Uranium Mining & Production

Uranium Mining & Production

Uranium mining and production involves radionuclides in the uranium and thorium decay series in processes that include 1) extracting the ore from the ground, 2) extracting uranium from the ore (milling), 3) treatment and disposal of waste products from milling, and 4) fabricating uranium fuel elements after enrichment. We are experts in the uranium fuel cycle, from mining to remediation.

Connecting Community, Science & Environment

RAC stresses resolving technical problems through high-quality science and the clear communication of scientific information. Since RAC was formed in 1977, RAC team members have served in nationally and internationally recognized organizations.

Environmental Protection Agency Science Advisory Board

National Academy of Sciences

National Council on Radiation Protection and Measurements

Atomic Energy Agency

United Nations Scientific Committee on the Effects of Atomic Radiation

International Commission on Radiological Protection