| 摘要 |
A detector for identification and localization of radioisotopes, comprising a position sensitive detector configured to observe the location of emitted high energy radiation, wherein the position sensitive detector comprises a surface comprised of a first radiation sensitive material; and an active mask disposed in front of the position sensitive detector positioned such that the emitted high energy radiation is detected by the position sensitive detector after passage through the mask, wherein the mask comprises a second radiation sensitive material.
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