Radiation Protection: Surveys, Agencies, and Regulations

Flashcards covering radiation protection concepts, area surveys, U.S. regulatory agencies, radiation protection standards organizations, and RSO responsibilities.

Qualified Expert (Radiation Protection)

A radiation physicist who serves as an expert in performing general procedure surveys, including performance specification, acceptance testing, calibration of radiation sources, and maintaining a quality assurance program.

U.S. Food & Drug Administration (FDA)

A U.S. regulatory agency that regulates radiation-emitting products by controlling the design and manufacture of electronic products, including x-ray equipment, and conducting on-site inspections of mammography units.

Controlled Area

A region adjacent to an x-ray room wall that is designated for use only by occupationally exposed personnel such as radiographers (e.g., technologist work rooms or restrooms inside the radiology unit).

Uncontrolled Area

An area accessible to the general public, such as a nearby hall or corridor frequented by non-occupational personnel.

"Radiation Area" Sign

A warning sign that must be posted in any room or area where radioactive materials or radiation sources are used or stored as part of a radiation safety program.

Radioactive Materials Caution Symbol

A caution sign featuring the magenta radiation symbol on a yellow background, required to be posted where radioactive materials or sources are used or stored.

U.S. Regulatory Agencies

Agencies responsible for enforcing radiation protection standards to protect the general public, patients, and occupationally exposed personnel after standards have been set.

Nuclear Regulatory Commission (NRC)

A federal agency, formerly known as the Atomic Energy Commission, that oversees the nuclear energy industry and enforces radiation protection standards published in Title 10 of the Code of Federal Regulations (does not regulate x-ray imaging facilities).

Agreement States

States (40 out of 50) that have entered into agreements with the NRC to assume responsibility for enforcing radiation protection regulations, licensing, and regulating the use of radioactive materials within their jurisdiction.

Environmental Protection Agency (EPA)

A U.S. regulatory agency that facilitates the development and enforcement of regulations pertaining to the control of radiation in the environment.

Occupational Safety & Health Administration (OSHA)

A U.S. agency that regulates occupational exposure to radiation under 29 CFR 1910, oversees workplace training programs, and enforces the "Right to Know" law.

"Right to Know" Law

An OSHA regulation establishing an employee's right to know about hazardous substances, infectious agents, ionizing radiation, and nonionizing radiation present in their place of employment.

Radiation Protection Standards Organizations

Four major international and national organizations responsible for evaluating the relationship between radiation equivalent dose ($EqD$) and biologic effects, as well as formulating risk estimates.

International Commission on Radiological Protection (ICRP)

The international authority on radiological protection that evaluates biological effects data and provides protection guidance through general recommendations on dose limits.

National Council on Radiation Protection & Measurements (NCRP)

A U.S. non-enforcement body that reviews recommendations from the ICRP and incorporates them into U.S. radiation protection criteria and publications.

United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR)

An international committee that evaluates human and environmental exposure to ionizing radiation to help form radiation protection guidelines provided to the ICRP.

NAS/NRC-BEIR

The National Academy of Sciences/National Research Council Committee on the Biological Effects of Ionizing Radiation, which reviews studies on the biological effects and risk estimates of ionizing radiation.

Radiation Safety Committee (RSC)

An NRC-mandated committee that must be established at an imaging facility to assist in organizing and overseeing the facility's radiation safety program.

Radiation Safety Officer (RSO)

An individual responsible for developing, maintaining, and supervising the facility's radiation safety program, maintaining monitoring records, counseling overexposed personnel, and holding independent authority to stop unsafe operations.

10 CFR 35.24 RSO Duties

Federal regulatory requirements mandating that a licensee freely allow the RSO to: 1. Identify radiation safety problems, 2. Initiate, recommend, or provide corrective action, 3. Stop unsafe operations involving by-product material, and 4. Verify implementation of corrective actions.