SENSITIVITY DISTRIBUTION TYPE RADIATION SENSOR

摘要

PURPOSE:To obtain a sensitivity distribution type radiation sensor in which the dynamic range to be measured is not narrowed even when there is the position where the radiation dose of a measuring range is largely varied. CONSTITUTION:The same radiation detecting sensitivity distribution for distributing the radiation detecting sensitivity of a strand 1 of a glass added with rare earth element ions in its longitudinal direction is given to the glass itself. A coating 3 for attenuating the radiation is provided in the outer periphery of a radiation detecting strand 2 to form a radiation detecting sensitivity distribution. The two or more strands 2 having different radiation detecting sensitivities are connected in the axial direction to form a detecting sensitivity distribution. The quantity of hole capturing structure in the glass of the strand 1 is controlled to form a detecting sensitivity distribution. Metal ions are added to the glass to control the quantity of the capturing structure to form the detecting sensitivity distribution. The quantity of the hole capturing structure is controlled by altering the drawing conditions of the strand.