Physics and Radiobiology of Nuclear Medicine
the time interval between the doses. Regeneration is a mechanism of response to depopulation of a cell cohort due to radiation d ...
The deterministic or nonstochastic effects are induced by high radiation doses and the severity of the damages, rather than thei ...
so that they lose the ability to reproduce. Also, the number of lymphocytes are greatly depressed, whereby the immune system of ...
the body. At this level of radiation dose, death is a certainty and medical help is of no use. Long-Term Effects of Radiation Th ...
Suppressor genes exist in normal cells to control the cell growth and protect the genome against carcinogenic agents. After radi ...
Uranium mine workers inhale a considerable amount of radioactive dust containing radon gas. The decay products of radon settle i ...
tional to D^2 (quadratic) at higher doses. Yet, other experts believe that there is no risk of carcinogenesis up to a certain th ...
to radiocarcinogenesis than older persons. Based on a relative-risk linear quadratic dose response model, the BEIR V Committee ( ...
followed by acute radiation dermatitis manifested by blister formation, dermal hypoplasia, edema, and permanent depilation. The ...
Cataractogenesis The lens of the eye is sensitive to radiation and develops cataracts on irra- diation with ionizing radiations. ...
childhood leukemia in the first 10 to 15 years by a factor of 1.5 to 2. Mental retardation in this period has been reported with ...
tions in one generation in a species. It is calculated as a ratio of the average spontaneous and induced mutation rates in a set ...
Gonadal shields, appropriate collimation of the x-ray beams, and limited and prudent application of repeat procedures definitely ...
cancers, nonfatal cancers, and hereditary effects have been estimated by the ICRP to be 4.0%, 0.8%, and 0.8%, respectively, for ...
damaging than g-emitting radionuclides. Radioiodine administered orally to pregnant women during the gestation period of 15 to 2 ...
radiographic services. These radionuclides have long half-lives. Many of these sources are mostly in metallic capsule form and t ...
the external contamination, the patient must be first managed for the con- dition before decontamination is carried out. Burns a ...
that are currently in place. In view of the concerns over the use of dirty bombs by miscreants, the Homeland Security has establ ...
gerous to health, alluding to the linear no-threshold (LNT) theory of the dose–response relationship. Psychological warfare with ...
Questions (a) What are the mechanisms of radiation damage? (b) Does the direct action or indirect action contribute more to rad ...
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