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Updated: Jun 5, 2026

Dosimetry for Cell Irradiation using Orthovoltage (40-300 kV) X-Ray Facilities
Published on: February 20, 2021
[Concepts of dosimetry]
1Service Central de Médecine du Travail, Hôtel Dieu, 1 Place du Parvis Notre Dame, 75004 Paris, France. denis.gambini@parisdescartes.fr
Abstract:
The effects of exposure to ionizing radiation are determined by the absorbed dose D. The equivalent dose H takes into consideration the variation in probability of a stochastic effect (cancer, leukemia, genetic mutation) based on the quality of the exposure. The effective dose E takes into account the sensitivity of tissues (T) to stochastic effects from radiation exposure. Optimization of radiation exposure to patients in diagnostic radiology in based on diagnostic reference levels (DRL): entrance surface dose or dose-area product for conventional radiology; CT dose index and DLP for CT.
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