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imparted by any ionizing radiation to the matter of mass dm. Absorbed dose is expressed in the same unit as kerma, joule per kilogram (J ⋅kg-1) in SI which receives the special name gray,Gy When a large volume is irradiated, energy can be imparted to the matter in a specific volume by radiation that comes from
- Ionising radiation dosimetry and principles of measurement
Radiation dosimetry must consider whether the measurements...
- Ionising radiation dosimetry and principles of measurement
The Ideal IMRT Dosimeter. The dosimeter can determine absolute dose. The dosimeter can provide three-dimensional data. The dosimeter’s response isn’t orientation-dependent. The dosimeter is well-calibrated, and the interpretation of its readout is rigorously supported by data.
Radiation dosimetry in the fields of health physics and radiation protection is the measurement, calculation and assessment of the ionizing radiation dose absorbed by an object, usually the human body. This applies both internally, due to ingested or inhaled radioactive substances, or externally due to irradiation by sources of radiation.
Quantification of the amount of radiation received by a potentially radiosensitive site is essential to the character- ization of the possible risks of the exposure.
7 lut 2023 · In dosimetry of ionizing radiation, one needs a device that has a sensitive medium to measure response in terms of absorbed dose to the incident ionizing radiation. This device is known as radiation dosimeter.
The measurement of ionizing radiation, using a dosimeter, requires a thorough understanding of the interaction of radiation and matter as well as an understanding of the mechanisms of the various measurement systems.
Radiation dosimetry must consider whether the measurements are made free in air (no backscatter), with phantoms, or on patients. An understanding of the amount and spectral characteristics of backscatter provides insight into the anticipated differences in such measurements.
