The union epidemiology material and the phantom study and the laboratory gun look up.
结合流行病学资料和影像学及实验室枪查。
2
At present, the way to evaluate the phantom is that acoustic parameters of tissue mimicking material are detected and judged to agree with acoustic parameters of body.
Methods 15 MV (6 MV) X-ray outputs which from the accelerator in carries on the survey after the different material composition mold body in water phantom.