| 摘要 |
The invention relates to a direction determination device (1, 13) for determining the direction of a radiation source of ionizing radiation. Said direction determination device comprises at least two, preferably at least three, radiation detection devices (2, 2a, 2b, 3, 18) which are arranged at an angle relative each other. A first radiation detection device, preferably two first radiation detection devices, is/are designed as symmetry-maintaining angle-dependent radiation detection device(s) (2, 2a, 2b), and a second radiation detection device is designed as a symmetry-breaking angle-dependent radiation detection device (3, 18). |
