- The dose distribution on the central axis plane was measured by film badge.
- Materials and Methods: The precision and accuracy of target position in Z axis plane and X axis plane were measured by the film dosimeter.
- The vectorial cut mode for two axis plane graph
- abscissa axis plane T2WI showed owl eye sign(Fig5);
- The plane climbed until it was clear of the clouds.
- abscissa axis plane T2WI showed spinal cord vacuole sign(Fig8) .