Patent ID: 8605859

Claim:
An imaging apparatus for detecting a concealed object carried on a stationary human body comprising: a first module comprising a first X-ray source for producing a first pencil beam of X-rays directed toward said human body and a first detector assembly providing a signal representative of the intensity of the X-rays scattered from said human body as a result of being scanned by the first X-ray source, said first detector assembly being disposed on a same side of said human body as said first X-ray source and having an active area for receiving a portion of said scattered X-rays from said human body as a result of being scanned by said first X-ray source and a portion of transmitted X-rays from a second module; the second module comprising a second X-ray source for producing a second pencil beam of X-rays directed toward said human body and a second detector assembly providing a signal representative of the intensity of the X-rays scattered from said human body as a result of being scanned by said second X-ray source, said second detector assembly being disposed on a same side of said human body as said second X-ray source and having an active area for receiving a portion of said scattered X-rays from said human body as a result of being scanned by said second X-ray source and a portion of transmitted X-rays from the first module; a processor for processing detector signals generated from said first detector assembly and said second detector assembly to form at least one image; and a controller for causing the first module or the second module to move vertically while said human body remains stationary.