US 12,087,540 B2
Field emission-type tomosynthesis system, emitter for field emission-type tomosynthesis system, and method of manufacturing emitter
Jehwang Ryu, Seoul (KR); Seung Jun Yeo, Seoul (KR); Jong Min Lim, Seoul (KR); Woo Seob Kim, Seoul (KR); Jeung Sun Ahn, Seoul (KR); Moonkyoo Kong, Seoul (KR); Jae Ik Jung, Seoul (KR); and Jun Young Park, Seoul (KR)
Assigned to CAT BEAM TECH CO., LTD., Seoul (KR)
Appl. No. 17/297,215
Filed by CAT BEAM TECH CO., LTD., Seoul (KR)
PCT Filed Nov. 27, 2019, PCT No. PCT/KR2019/016427
§ 371(c)(1), (2) Date May 26, 2021,
PCT Pub. No. WO2020/111755, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 10-2018-0148994 (KR), filed on Nov. 27, 2018; and application No. 10-2018-0149004 (KR), filed on Nov. 27, 2018.
Prior Publication US 2022/0028644 A1, Jan. 27, 2022
Int. Cl. H01J 1/304 (2006.01); H01J 35/06 (2006.01); H01J 35/10 (2006.01)
CPC H01J 1/304 (2013.01) [H01J 35/065 (2013.01); H01J 35/10 (2013.01); H01J 2201/30469 (2013.01); H01J 2235/1033 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A field emission-type tomosynthesis system; comprising:
a vacuum body having a space therein;
a plurality of sources provided inside the body, wherein each of the plurality of sources generates and emits a plurality of electrons;
a source support having a rectangular plate extending in a vertical direction to support the plurality of sources;
a plurality of anodes arranged to face the plurality of sources inside the body, wherein the electrons collide with the plurality of anodes to generate a plurality of X-rays; and
an anode support having a rectangular plate extending in the vertical direction to support the plurality of anodes,
wherein the plurality of anodes have a plurality of protrusions each of which extends in a horizontal direction,
wherein the rectangular plate of the anode support incudes a plurality of holes through which the plurality of protrusions pass,
wherein each anode of the plurality of anodes includes a reflective surface and a protrusion extending the horizontal direction, and
wherein each anode of the plurality of anodes is rotatable around a protrusion formed in the each anode of the plurality of anodes and passing through the rectangular plate of the anode support to adjust an X-ray emission angle of each of the plurality of anodes independently so as to focus the X-rays emitted toward an object located outside the body.