Any material or obstruction that absorbs radiation and thus tends to protect personnel or materials from the effects of ionizing radiation.
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- Academic, Industrial, and Research Radiation Safety
- Accelerator
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- Instrumentation
- Medical Health Physics
- Military Health Physics
- Nonionizing Radiation
- Power Reactor
- Women in Radiation Protection
- Committees
- Submit Committee Report
- Committee Reports
- Academic Education Committee
- Accredited Standards Committee N13, Radiation Protection
- Accredited Standards Committee N43, Equipment for Non-Medical Radiation Applications Committee
- Awards Committee
- Continuing Education Programs Committee
- Executive Committee
- Finance Committee
- Government Relations Committee
- History Committee
- International Collaboration Committee
- Intersociety Relations Committee
- Liaisons to Other Organizations
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- Marketing Ad Hoc Committee
- Membership Committee
- Mentorship Committee
- Nominating Committee
- Professional and Ethical Conduct Committee
- Program Committee
- Public Information Committee
- Rules Committee
- Science Support Committee
- Scientific and Public Issues Committee
- Society Support Committee
- Standards Committee
- Strategic Planning Committee
- Student Support Committee
- Title Protection Committee
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