(redirected from dosimetric)
Also found in: Dictionary, Thesaurus, Medical.
Related to dosimetric: radiation dosimetry


Measurement of the power, energy, irradiance, or radiant exposure of high-energy, ionizing radiation. Also known as radiation 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.


References in periodicals archive ?
Rectal bleeding after hypofractionated radiotherapy for prostate cancer: Correlation between clinical and dosimetric parameters and the incidence of grade 2 or worse rectal bleeding.
These dosimetric films undergo decoloration when subjected to radiation [13].
For purposes of comparison with other studies, median dosimetric values were calculated and the children were grouped into three age ranges, namely younger than 3 years, 3-7 years and 8-12 years old.
Since December 1991, this database has expanded to include personal medical and dosimetric information on 659 292 people, including 284 919 participants of liquidation of the consequences of the catastrophe.
3]:C detectors, and their OSL dosimetric systems are probably the only ones that are widely known today on the market.
In any bioelectromagentic experiment investigating the biological or biomedical effects of electromagnetic fields, a proper dosimetric tool is mandatory.
Dosimetric evaluation of gamma doses using irradiated lead-alkali-silicate glass.
6,7) In our study the dosimetric methods, based upon estimated thyroid weight, pre-treatment thyroid uptake and desired dose to be delivered to a unit thyroid tissue, were applied in 32% of patients.
2+] were found to have good TL sensitivities and other dosimetric properties.
discuss such topics as treatment machines, x-ray production, radiation detection and measurement, beam calibration, dosimetric parameters, monitor unit/timer setting calculations, dose distributions in patients, electron beams, brachytherapy, radiation safety, quality assurance, imaging, and special modalities, as well as reviews of basic mathematics and physics.