| 摘要 |
Collimator assemblies that include an outer slit collimator having one or more slits therein, and an inner slit collimator having one or more slits therein are provided. Imaging systems that include a collimator assembly and a detector array are also provided. The collimator assembly includes an outer slit collimator having one or more slits therein. The collimator assembly further includes an inner slit collimator having one or more slits therein. The imaging system also includes a detector array configured to detect gamma rays emanating from a field of view that pass through one or more apertures defined by the collimator assembly. The detector array is further configured to generate one or more signals in response to the detected gamma rays. Methods of imaging a field of view using the imaging system are also provided.
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