By Alan D Martin; Samuel A Harbison
An advent to Radiation defense is an available account of the character of the risks provided by means of ionizing radiation and the equipment of defense, for these new to the sector and for the non-specialist.
This booklet takes the reader during the basic historical past to the topic, the technical rules underlying the regulate of radiation risks, the organic results of radiation, and radiation detection and dimension. those are by way of a attention of extra really good subject matters together with radiation security in drugs and within the nuclear energy undefined, radioactive waste administration and radiological emergencies
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Extra resources for An introduction to radiation protection
6. Why is an ␣-decay usually followed by a ␤Ϫ-decay? 7. 1 ABSORPTION OF ENERGY Just as heat and light transfer energy from the Sun to the Earth and the atmosphere, so nuclear radiation transfers energy from a source to an absorbing medium. The source of nuclear radiation may be radioactive atoms or equipment such as X-ray machines. The effect of absorbing the more familiar types of radiation, such as heat, is to raise the temperature of the absorbing medium. If this medium is the human body, or part of it, the rise in temperature is sensed and, if it becomes excessive, avoiding action can be taken by sheltering under a sunshade (shielding), for example, or by moving further away from a fire (distance).
7. A worker receives an external dose in 1 year of 1 mSv (assumed to be uniform over the whole body). 05. What is his effective dose for the year? 1 INTRODUCTION The interaction of ionizing radiation with the human body, arising either from external sources outside the body or from internal contamination of the body by radioactive substances, leads to biological effects which may later show up as clinical symptoms. The nature and severity of these symptoms and the time at which they appear depend on the amount of radiation absorbed and the rate at which it is received.
This unit had several limitations and so two further units, the rad and the rem, were introduced. Later, these two units were replaced in the SI system (Système International d’Unités) by the gray and the sievert, respectively. The gray and the sievert have been approved by the International Commission on Radiation Units and Measurements (ICRU) and used by the International Commission on Radiological Protection (ICRP). However, the older units, the rad and the rem, are still used in some countries and an explanation of the relationships between the old units and the SI units is given in Appendix A.
An introduction to radiation protection by Alan D Martin; Samuel A Harbison