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Integrated Radiation Analysis and Design Tools (Design_Tools)
Principal Investigator
Research Area:
Radiation health
Species Studied
Scientific Name: Species: N/A

The Integrated Radiation Analysis and Design Tools (IRADT) Project develops and maintains an integrated tool set that collects the current best practices, databases, and state-of-the-art methodologies to evaluate and optimize human systems such as spacecraft, spacesuits, rovers, and habitats. IRADT integrates design models and methodologies in support of evaluation/verification of design limits and design solutions to meet As Low As Reasonably Achievable (ALARA) requirements (NASA STD 3001, Vol 2). IRADT provides the radiation community access to physics and transport capabilities and research improvements. The capabilities are developed under strict version control and are independently verified and validated to the extent possible. Current customers include NASA Exploration Systems Mission Directorate's (ESMD) Directorate Integration Office studies (i.e. LAT, MAT, LSOS), Lunar Surface Systems as well as Constellation's Orion and Vehicle Integration Office, universities, industry, and Small Business Innovation Research (SBIR). IRADT is designed for utilization by future commercial customers concerned about transfer of proprietary data and results.

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Badavi FF, Walker SA, and Santos Koos LM. Evaluation of the new radiation belt AE9/AP9/SPM model for a cislunar mission. Acta Astronautica. 2014. Sep-Oct; 102:156-68. [DOI]

Badavi FF. Validation of the new trapped environment AE9/AP9/SPM at low Earth orbit. Advances in Space Research. 2014. September; 54(6):917-28. [DOI]

Slaba TC and Blattnig SR. GCR environmental models I: Sensitivity analysis for GCR environments. Space Weather. 2014. April; 12(4):217-24. [DOI]

Slaba TC and Blattnig SR. GCR environmental models II: Uncertainty propagation methods for GCR environments. Space Weather. 2014. April; 12(4):225-32. [DOI]

Slaba TC, Xu X, Blattnig SR, and Norman RB. GCR environmental models III: GCR model validation and propagated uncertainties in effective dose. Space Weather. 2014. April; 12(4):233-45. [DOI]

Cosmic radiation
Radiation monitoring
Technology assessment

Data Information
Data Availability
Archive is complete. Data sets are not publicly available but can be requested.
Data Sets+ Request data

Dosemetric measurements
Galactic cosmic rays models
Radiation exposure

Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Ground 05/01/2009 In Progress

Human Research Program (HRP) Human Research Roadmap (HRR) Information
Crew health and performance is critical to successful human exploration beyond low Earth orbit. The Human Research Program (HRP) investigates and mitigates the highest risks to human health and performance, providing essential countermeasures and technologies for human space exploration. Risks include physiological and performance effects from hazards such as radiation, altered gravity, and hostile environments, as well as unique challenges in medical support, human factors, and behavioral health support. The HRP utilizes an Integrated Research Plan (IRP) to identify the approach and research activities planned to address these risks, which are assigned to specific Elements within the program. The Human Research Roadmap is the web-based tool for communicating the IRP content.

The Human Research Roadmap is located at:

+ Click here for information of how this experiment is contributing to the HRP's path for risk reduction.

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Johnson Space Center LSDA Office
Project Manager: Pamela A. Bieri
Institutional Support
National Aeronautics and Space Administration (NASA)
Proposal Date
Proposal Source
Directed Research