FULL-BODY SECURITY SCREENING APPARATUS, OPERATION METHOD THEREOF, AND FILTER DEVICE

Title:

FULL-BODY SECURITY SCREENING APPARATUS, OPERATION METHOD THEREOF, AND FILTER DEVICE

Document Type and Number:

WIPO Patent Application WO/2018/161680

Kind Code:

A1

Abstract:

A full-body security screening apparatus (100) comprises: a ray source (10) comprising a ray beam output port (11) and used to emit a radiation beam; a beam guiding box (20) used to guide the ray beam emitted by the ray source (10); and a filter device (30) arranged between the ray beam output port (11) of the ray source (10) and the beam guiding box (20). The filter device (30) comprises: a housing (31) and a filter cage (32). The filter cage (32) is arranged inside the housing (31), and comprises an enclosure surrounded by two or more pairs of filter plates (321) made of different materials and/or having different thicknesses. The filter cage (32) can be rotated about a central axis thereof, so as to enable at least one pair of the filter plates (321) to filter and attenuate the ray beam from the ray beam output port (11), thereby adjusting a ray beam output dose of the full-body security screening apparatus (100). Also provided are an operation method of the full-body security screening apparatus (100), and a filter device (30) utilized in the full-body security screening apparatus (100).

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Inventors:

CHEN ZHIQIANG (CN)
LI YUANJING (CN)
ZHAO ZIRAN (CN)
WU WANLONG (CN)
RUAN MING (CN)
JIN YINGKANG (CN)
DING GUANGWEI (CN)
SHEN ZONGJUN (CN)
ZHAO JIAJIANG (CN)

Application Number:

PCT/CN2017/117498

Publication Date:

September 13, 2018

Filing Date:

December 20, 2017

Export Citation:

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Assignee:

UNIV TSINGHUA (CN)
NUCTECH CO LTD (CN)

International Classes:

G01V5/00

Domestic Patent References:

WO2000043760A2

2000-07-27

Foreign References:

CN106814404A	2017-06-09
CN206515264U	2017-09-22
US6973158B2	2005-12-06
CN102595754A	2012-07-18
CN201488958U	2010-05-26
US20030224182A1	2003-12-04

Attorney, Agent or Firm:

CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)

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