| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiation detector provided with a radiation detection element with a CdZnTe or CdTe single crystal as a substrate which has improved radiation detection performance.SOLUTION: A specified amount of Te and a specified amount of Cd are charged into a heat-resistant container, and Zn and In as an impurity are charged into the container by adjusting the Zn concentration in the single crystal to 1.6-2.2 at% and the In concentration in the single crystal to 0.04-0.25 wt.ppm or, instead of In, Cl as an impurity is charged into the container by adjusting the Cl concentration in the single crystal to 0.5-3.0 wt.ppm. The container is laid inside a furnace and heated to melt Te, Cd and Zn or Te and Cd so as to form molten metal while causing In or Cl to diffuse into the molten metal, and a single crystal is grown from the molten metal. |
