dosimetry

do·sim·e·try

D0349800 (dō-sĭm′ĭ-trē)n. The accurate measurement of doses, especially of radiation.

[dos(e) + -metry.]

do·si·met′ric (-sə-mĕt′rĭk) adj.

do•sim•e•try

(doʊˈsɪm ɪ tri)

n. the process or method of measuring the dosage of ionizing radiation. [1940–45; < Greek dósi(s) dose + -metry] do`si•met′ric (-səˈmɛ trɪk) adj.

dosimetry

The measurement of radiation doses. It applies to both the devices used (dosimeters) and to the techniques.

dosimetry

dosiology. See also measurement; radiation. — dosimetrist, n. — dosimetric, dosimetrical, adj.See also: Drugs

the measurement by a dosimeter of the dosage of radiation a per-son has received. See also drugs. — dosimetrist, n. — dosimetric, dosimetrical, adj.See also: Measurement

the measurement by a dosimeter of the dosage of radiation a person might have received. See also drugs. — dosimetrist, n. — dosimetric, dosimetrical adj.See also: Radiation

Thesaurus

Noun

dosimetry - measuring the dose of radiation emitted by a radioactive sourcemeasurement, measuring, mensuration, measure - the act or process of assigning numbers to phenomena according to a rule; "the measurements were carefully done"; "his mental measurings proved remarkably accurate"

Translations

Dosimetry

dosimetry

[dō′sim·ə·trē] (nucleonics) Measurement of the power, energy, irradiance, or radiant exposure of high-energy, ionizing radiation. Also known as radiation dosimetry.

Dosimetry

an area of applied physics that studies the physical values that characterize the effect of ionizing radiation on natural objects (animate and inanimate)—in particular, radiation doses—and the methods and instruments for measuring these amounts.

The development of dosimetry was spurred initially by the need to protect man against ionizing radiation; biological effects that appeared after the irradiation of man were noted soon after the discovery of X rays. The need arose for a quantitative evaluation of the degree of radiation danger. The basic quantitative criterion was taken to be the exposure dose, measured in roentgens and determinable in terms of the amount of atmospheric ionization. The work of Soviet scientists P. N. Lukirskii, V. M. Dukel’skii, D. N. Nasledov, K. K. Aglintsev, and I. V. Poroikov was important in the development of roentgenometry.

With the discovery of radium it was learned that the beta and gamma radiations of radioactive substances bring about biological effects similar to those caused by X-radiation. A danger arose in the isolation, treatment, and use of radioactive compounds in that radioactive substances could get inside the body. Methods were developed for measuring the activity of radioactive sources (the number of decays per second). These methods are the basis of radiometry.

The development and construction of nuclear reactors and charged particle accelerators, the development of nuclear power, and the mass production of radioactive isotopes have led to a great diversity of types of ionizing radiation and to the development of diverse dosimetric instruments (dosimeters).

Research on the biological effects of ionizing radiation on the cellular and molecular levels has brought about the development of microdosimetry, which examines the transfer of radiation energy to the microstructures of matter.

V. I. IVANOV

dosimetry

[do-sim´ĕ-tre] scientific determination of amount, rate, and distribution of radiation emitted from a source of ionizing radiation.

do·sim·e·try

(dō-sim'ĕ-trē), Measurement of radiation exposure, especially x-rays or gamma rays; calculation of radiation dose from internally administered radionuclides.

dosimetry

(dō-sĭm′ĭ-trē)n. The accurate measurement of doses, especially of radiation.

do·si·met′ric (-sə-mĕt′rĭk) adj.

dosimetry

Radiation physics The formal science that measures and calculates doses and format of radiation to be administered to a Pt with a disease requiring RT, in particular cancer. See Definitive radiation, EPR dosimetry, Radiation.

do·sim·e·try

(dō-sim'ĕ-trē) Measurement of radiation exposure, especially x-rays or gamma rays; calculation of radiation dose from internally administered radionuclides.

do·sim·e·try

(dō-sim'ĕ-trē) Measurement of radiation exposure, especially x-rays or gamma rays.

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Words related to dosimetry

noun measuring the dose of radiation emitted by a radioactive source

Related Words