| 摘要 |
<p>PURPOSE:To quickly and precisely make possible evaluation of a degree of contribution of a radiation source at a site by measuring an atmosphere dose equivalent rate of an evaluation point and a surface dose equivalent rate of each point of the radiation source to be measured to calculate the degree of the contribution of the radiation source to the atmosphere dose equivalent rate. CONSTITUTION:At first, a radiation source to be measured and an evaluation point in a working environment are chosen. A microcomputer 4 is driven to select the shape, size and the like of a radiation source on the basis of the instruction of a process information indicator panel 5 so as to set to input while a numerical value with respect to the position relation of the radiation source and the evaluation point is set so as to input 3 as computation information. Next, a face surface radiation dose equivalent rate of the radiation source to be measured observed from the evaluation point and the an atmosphere dose equivalent rate of the evaluation point are measured with the use of a radiation detector 1 to input 3 into the computer 4 respectively. When the above input is completed, the computer 4 automatically computes the dose equivalent rate contributed for the radiation source at the evaluation point and a degree of the contribution of the radiation source to the atmosphere dose equivalent rate of the evaluation point to display the computed result on the indicator panel 5. Thereby the improvement of radiation control can be contrived.</p> |
