| 摘要 |
PROBLEM TO BE SOLVED: To provide a GaAs-based radiation absorption material having extended carrier lifetime while maintaining high electron mobility, and thereby having improved radiation detectability, and to provide a radiation detector using the same.SOLUTION: A radiation absorption material 24 is represented by AlGaAs (where, x=0.25 to 0.35), and contains a compound whose specific resistance during undoping is 10&OHgr; cm or higher. |
