human body safety inspection apparatus, method for operating a human body safety inspection apparatus, and filtering device.

摘要

a human body security scanner (100) comprises: a radiation source (10) comprising a radiation beam output (11) and used to emit a radiation beam; a beam guide box (20) used to guide the radiation beam emitted by the radiation source (10); and a filtering device (30) arranged between the radiation beam outlet (11) of the radiation source (10) and the beam guide box (20). the filtering device (30) comprises: a housing (31) and a filter cage (32). the filter cage (32) is arranged inside the housing (31) and comprises a housing surrounded by two or more pairs of filter plates (321) made of different materials and / or with different thicknesses. the filter cage (32) can be rotated about a central axis of the same, so that at least one pair of the filter plates (321) can filter and attenuate the radiation beam from the radiation beam outlet (11 ), thereby adjusting a radiation beam output dose from the human body security scanner (100). also provided are a method of operating the human body security scanner (100) and a filtering device (30) used in the human body security scanner (100).