External beam radiation therapy definition

External beam radiation therapy means therapeutic irradiation in which the source of radiation is at a distance from the body.
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External beam radiation therapy means a method of radiation therapy utilized to deliver a radiation dose in which the source (sources) of radiation is (are) at a distance from the body. For the purposes of this Code "teletherapy" is an equivalent term.
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External beam radiation therapy means therapeutic irradiation in which the source of radiation is at a
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Examples of External beam radiation therapy in a sentence

  • External beam radiation therapy and chemotherapy with adriamycin and/or other agents has been used to induce partial remis- sions [49, 50].

  • The registrant shall have written procedures that provide the following information:(1) Prior to the administration of each course of radiation treatment, the patient’s or human research subject’s identity is verified by more than one method as the individual named in the written directive;(2) Each administration is in accordance with the written directive;(3) External beam radiation therapy final plans of treatment and related calculations are in accordance with the respective written directives by:1.


More Definitions of External beam radiation therapy

External beam radiation therapy means therapeutic irradiation in which the source of radiation is at a distance from the body. "External dose" means that portion of the dose equivalent received from any source of radiation outside the body.
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External beam radiation therapy means therapeutic irradiation in which the source of radiation is at a distance from the body. "Field-flattening filter" means a filter used to homogenize the absorbed dose rate over the radiation field.
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External beam radiation therapy means therapeutic irradiation in which
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Related to External beam radiation therapy

  • Moving beam radiation therapy means radiation therapy with any planned displacement of radiation field or patient relative to each other, or with any planned change of absorbed dose distribution. It includes arc, skip, conformal, intensity modulation and rotational therapy.

  • Stray radiation means the sum of leakage and scattered radiation.

  • Stationary beam radiation therapy means radiation therapy without displacement of one or more mechanical axes relative to the patient during irradiation.

  • Radiation means alpha particles, beta particles, gamma rays, X-rays, neutrons, high-speed electrons, high-speed protons, and other particles capable of producing ions. For purposes of these rules, ionizing radiation is an equivalent term. Radiation, as used in these rules, does not include nonionizing radiation, such as radiowaves or microwaves, visible, infrared, or ultraviolet light.

  • Irradiation means the exposure of a living being or matter to ionizing radiation.

  • Drug therapy management means the review of a drug therapy regimen of a patient by one or more pharmacists for the purpose of evaluating and rendering advice to one or more practitioners regarding adjustment of the regimen.

  • Radiation machine means any device capable of producing radiation except those devices with radioactive material as the only source of radiation.

  • Radiation detector means a device which in the presence of radiation provides a signal or other indication suitable for use in measuring one or more quantities of incident radiation.

  • Very high radiation area means an area, accessible to individuals, in which radiation levels from radiation sources external to the body could result in an individual receiving an absorbed dose in excess of 5 Gy (500 rad) in one hour at one meter from a source of radiation or one meter from any surface that the radiation penetrates.

  • Background radiation means radiation from cosmic sources; naturally occurring radioactive materials, including radon (except as a decay product of source or special nuclear material); and global fallout as it exists in the environment from the testing of nuclear explosive devices or from past nuclear accidents such as Chernobyl that contribute to background radiation and are not under the control of the licensee. “Background radiation” does not include sources of radiation from radioactive materials regulated by the agency.

  • High radiation area means an area, accessible to individuals, in which radiation levels from radiation sources external to the body could result in an individual receiving a dose equivalent in excess of one mSv (0.1 rem) in one hour at 30 centimeters from any source of radiation or 30 centimeters from any surface that the radiation penetrates.