By Alan Martin, Sam Harbison, Karen Beach, Peter Cole
A brand new version of the UK's common creation to the risks awarded by means of ionizing radiation and the tools of safety and control.
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Extra resources for An Introduction to Radiation Protection 6E
6 STOCHASTIC EFFECTS – CANCER INDUCTION It became apparent in the early part of the twentieth century that groups of people, such as radiologists and their patients, who were exposed to relatively high levels of radiation showed a higher incidence of certain types of cancer than groups not exposed to radiation. More recently, detailed studies of the populations exposed to radiation from atomic bombs, of patients exposed to radiation therapy and of groups exposed occupationally, particularly uranium miners, have confirmed the ability of radiation to induce cancer.
Genes carry the information which determines the characteristics of daughter cells. Mitosis: the process by which single cells reproduce. Meiosis: a stage in the formation of the reproductive cells – the sperm in the male and the ovum in the female. Effects of radiation on cells: inhibition of mitosis, chromosome aberrations. Acute effects: effects occurring within a few weeks of a very large exposure; owing to the depletion of cell populations. Late effects: effects occurring at later times, typically some years after exposure; main effect is cancer induction.
For a and other multiply charged particles, wR is also taken as 20. 1. 0002 Gy. What is his total equivalent dose? 019 Sv In the remainder of the book, we generally refer to equivalent dose simply as dose, except where this could lead to confusion. 5 EFFECTIVE DOSE A further complication is that different organs and tissues have differing sensitivities to radiation. To deal with the very common situation in which the body is not uniformly exposed, another concept is needed, which is called effective dose, E.
An Introduction to Radiation Protection 6E by Alan Martin, Sam Harbison, Karen Beach, Peter Cole