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View DetailsThe purpose of Radiation Protection Computer Code Analysis and Maintenance program (RAMP) is to develop, maintain, improve, distribute and provide training on NRC-sponsored radiation protection and dose assessment computer codes.
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View DetailsGoals include ensuring software is appropriately updated, reflect computer programming changes, are in accord with International Regulations and Guidance Documents, and more.
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View DetailsAccess the most current versions of RAMP code, a cooperative forum to resolve code errors and inefficiencies, and technical documents and user guides.
Access the RAMP suite of codes
SIERRA ATD is an atmospheric transport and dispersion code used for analysis in siting, licensing, and environmental reviews.
Radiological Assessment System for Consequence Analysis for radiological emergencies
Comprehensive radiation dose assessment tool designed to evaluate occupational, public, and medical exposure scenarios.
Analyze potential human and biota radiation exposures from environmental contamination
Doses from routine and accident scenarios of transporting radioactive material
Second-generation environmental dosimetry
Radiological impacts of airborne emissions from uranium mining and milling facilities
Develop a defensible sampling plan based on statistical sampling theory
Confirmatory code used for various design-basis loss-of-coolant accidents
Dose from residual radioactivity in soils and on building surfaces
Phantom with Moving Arms and Legs
Activity release of radioactive gaseous and liquid effluents from nuclear power plants
Offsite doses of liquid and gaseous radioactive releases from normal nuclear power operations
Assess light-water reactor control room habitability
Integrated Modules for Bioassay Analysis
Assess radiological hazards during an emergency response
Explore the Basis for the LLRW Classification Tables
Estimate dose and risk from emission of radioactive material to the air
News
you can use
Join the next meeting
RAMP User Group Meeting, October 20-25, 2025. Bethesda, Maryland (near Washington, D.C.)
Access past meeting files
Browse the meeting archives, where you can download PDFs of all the past meeting materials and catch up on anything you may have missed.
View student projects
We encourage students to get involved with different codes that RAMP offers, as it may benefit their nuclear or health physics careers. These codes range from emergency response to dose assessment. Students may learn about them through tutorials or examples and may apply this to coursework or self-learning.