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Key Terms

Essentials of Radiation Biology and Protection 2nd Edition Chapter 1

QuestionAnswer
Direct Effect A result of ionization and excitation, an interaction that happensdirectly on a critical biologic macromolecule
Epilation Hair loss
Erythema Reddening of skin
Fractionation The splitting of radiation into smaller amounts over a period of time
Indirect Effect A cell interaction that occurs if the intiail ionizing incident takes place on a distant noncritical molecule that then transfersthe ionization of energy to another molecule
Law of Bergonie and Tribondeau Law which states that ionizing radiation is more effective against cells that are highly mitonic, immature, and have a long dividing future; name for the two experimenters who made this determination
Mutagenesis The causing of genetic mutation by radiation
Oxygen Effect Name given to cellular response to radiation when oxygenis present
Protraction
Rad The unit of radiation absorbed dose
Radioactivity The capability of a material to give off rays or particles from its nucleus
Radiobiology Division of biology concerned with effects of ionizing radiation on living things
Rem The unit of doese equivalent or occupational exposure
Reproductive Failure Cell that is unable to continue repeated divisions after being irradiated
Roentgen(R) A unit of radiation exposure descriptive of X- or gamma-radiation, the quantity of which would produce a charge of one electrostatic unit of electricity
Created by: Dallas1856
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