Patent ID: 8193486
Filing Date: 2012-06-05
Classification: G01V

Abstract:
1. A security inspection system for inspecting persons, characterized in that it comprises: a passageway which provides an inspection space isolated or partially isolated from an ambient environment, wherein the inspection space includes a plurality of sub-passageways allowing persons to be inspected to pass, and wherein each of the sub-passageways is provided with at least one millimeter wave imaging device for millimeter wave imaging of persons being inspected within the sub-passageway; and an ion mobility spectrometer for ionizing particles of substance or gases that are released or volatilized from the inspected persons within the plurality of sub-passageways into the air in the passageway and then measuring a mobility rate thereof under the action of an electric field to effect identification of substances; wherein the security inspection system further characterized in that an isolation means is provided at both ends of the passageway to keep the entrance and exit of the passageway at least partly isolated from the ambient environment; and wherein the at least one millimeter wave imaging device is provided within the inspection space.