US 10,376,229 B2
Computed tomographic mammography system
Miki Tamura, Nagareyama (JP); and Takeo Tsukamoto, Kawasaki (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Appl. No. 15/22,864
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
PCT Filed Sep. 10, 2014, PCT No. PCT/JP2014/004658
§ 371(c)(1), (2) Date Mar. 17, 2016,
PCT Pub. No. WO2015/040828, PCT Pub. Date Mar. 26, 2015.
Claims priority of application No. 2013-193906 (JP), filed on Sep. 19, 2013.
Prior Publication US 2016/0228083 A1, Aug. 11, 2016
Int. Cl. A61B 6/03 (2006.01); A61B 6/00 (2006.01); H01J 35/16 (2006.01); H05G 1/02 (2006.01)
CPC A61B 6/502 (2013.01) [A61B 6/032 (2013.01); H01J 35/16 (2013.01); H05G 1/02 (2013.01); H05G 1/025 (2013.01); H01J 2235/087 (2013.01)] 33 Claims
OG exemplary drawing
 
1. A computed tomographic mammography system, comprising:
a transmission type X-ray tube including a transmission type target and an X-ray detector disposed to face each other via a breast chamber;
a rotation unit which rotates the X-ray tube and the X-ray detector cooperatively around a rotation axis which is in the breast chamber; and
a gantry which houses the X-ray tube and the X-ray detector and has a front part with an insertion opening for a breast,
wherein the transmission type X-ray tube includes an electron emission source configured to emit an electron beam toward the transmission type target,
wherein the transmission type target includes a target layer which generates X-ray upon irradiation of electrons, and a supporting substrate which supports the target layer,
wherein the supporting substrate is configured to face toward a front part side of the gantry.