Patents by Inventor Shuqing Zhao
Shuqing Zhao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9869775Abstract: A method for processing a ceramic scintillator array, characterized in that, comprising the following steps: (a) forming, in a first direction, a predetermined number of straight first-direction through-cuts which are parallel to each other and spaced from each other on a scintillator substrate by using laser; (b) adequately filling the first-direction through-cuts with an adhesive and solidifying the adhesive; (c) forming, in a second direction. a predetermined number of second direction through-cuts which are parallel to each other at a predetermined interval on the scintillator substrate by using laser, wherein the second direction is perpendicular to the first direction; and (d) adequately filling the second direction through-cuts with the adhesive and solidifying the adhesive bond.Type: GrantFiled: December 29, 2015Date of Patent: January 16, 2018Assignees: Tsinghua University, Nuctech Company LimitedInventors: Yanchun Wang, Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Ziran Zhao, Yinong Liu, Yaohong Liu, Jianping Chang, Wenjian Zhang, Shuqing Zhao, Xiang Zou, Yongqiang Wang
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Patent number: 9816028Abstract: The present disclosure is directed to a rapid process for the preparation of gadolinium oxysulfide having a general formula of Gd2O2S, referred to as GOS, scintillation ceramics by using the combination of spark plasma primary sintering (SPS) and hot isostatic pressing secondary sintering.Type: GrantFiled: August 14, 2015Date of Patent: November 14, 2017Assignees: Tsinghua University, Nuctech Company LimitedInventors: Yanchun Wang, Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Ziran Zhao, Yinong Liu, Yaohong Liu, Jianping Chang, Shuqing Zhao, Wenjian Zhang, Yongqiang Wang
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Patent number: 9771515Abstract: The present disclosure is directed to a low cost sintering process for the preparation of gadolinium oxysulfide having a general formula of Gd2O2S, referred to as GOS, scintillation ceramics, comprising uniaxial hot pressing primary sintering and hot isostatic pressing secondary sintering.Type: GrantFiled: August 14, 2015Date of Patent: September 26, 2017Assignees: Tsinghua University, Nuctech Company LimitedInventors: Yanchun Wang, Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Ziran Zhao, Yinong Liu, Yaohong Liu, Jianping Chang, Shuqing Zhao, Wenjian Zhang, Yongqiang Wang
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Patent number: 9464997Abstract: Methods and apparatuses for measuring an effective atomic number of an object are disclosed. The apparatus includes: a ray source configured to product a first X-ray beam having a first energy and a second X-ray beam having a second energy; a Cherenkov detector configured to receive the first X-ray beam and the second X-ray beam that pass through an object under detection, and to generate a first detection value and a second detection value; and a data processing device configured to obtain an effective atomic number of the object based on the first detection value and the second detection value. The Cherenkov detector can eliminate disturbance of X-rays below certain energy threshold with respect to the object identification, and thus accuracy can be improved for object identification.Type: GrantFiled: December 28, 2012Date of Patent: October 11, 2016Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Shuwei Li, Zhiqiang Chen, Yuanjing Li, Ziran Zhao, Yinong Liu, Qingjun Zhang, Weibin Zhu, Yi Wang, Shuqing Zhao, Wenjian Zhang
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Publication number: 20160187500Abstract: A method for processing a ceramic scintillator array, characterized in that, comprising the following steps: (a) forming, in a first direction, a predetermined number of straight first-direction through-cuts which are parallel to each other and spaced from each other on a scintillator substrate by using laser; (b) adequately filling the first-direction through-cuts with an adhesive and solidifying the adhesive; (c) forming, in a second direction. a predetermined number of second direction through-cuts which are parallel to each other at a predetermined interval on the scintillator substrate by using laser, wherein the second direction is perpendicular to the first direction; and (d) adequately filling the second direction through-cuts with the adhesive and solidifying the adhesive bond.Type: ApplicationFiled: December 29, 2015Publication date: June 30, 2016Inventors: Yanchun WANG, Qingjun ZHANG, Yuanjing LI, Zhiqiang CHEN, Ziran ZHAO, Yinong LIU, Yaohong LIU, Jianping CHANG, Wenjian ZHANG, Shuqing ZHAO, Xiang ZOU, Yongqiang WANG
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Publication number: 20160046860Abstract: The present disclosure is directed to a low cost sintering process for the preparation of gadolinium oxysulfide having a general formula of Gd2O2S, referred to as GOS, scintillation ceramics, comprising uniaxial hot pressing primary sintering and hot isostatic pressing secondary sintering.Type: ApplicationFiled: August 14, 2015Publication date: February 18, 2016Inventors: Yanchun WANG, Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Ziran Zhao, Yinong Liu, Yaohong Liu, Jianping Chang, Shuqing Zhao, Wenjian Zhang, Yongqiang Wang
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Publication number: 20160046861Abstract: The present disclosure is directed to a rapid process for the preparation of gadolinium oxysulfide having a general formula of Gd2O2S, referred to as GOS, scintillation ceramics by using the combination of spark plasma primary sintering (SPS) and hot isostatic pressing secondary sintering.Type: ApplicationFiled: August 14, 2015Publication date: February 18, 2016Inventors: Yanchun WANG, Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Ziran Zhao, Yinong Liu, Yaohong Liu, Jianping Chang, Shuqing Zhao, Wenjian Zhang, Yongqiang Wang
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Publication number: 20140314201Abstract: Methods and apparatuses for measuring an effective atomic number of an object are disclosed. The apparatus includes: a ray source configured to product a first X-ray beam having a first energy and a second X-ray beam having a second energy; a Cherenkov detector configured to receive the first X-ray beam and the second X-ray beam that pass through an object under detection, and to generate a first detection value and a second detection value; and a data processing device configured to obtain an effective atomic number of the object based on the first detection value and the second detection value. The Cherenkov detector can eliminate disturbance of X-rays below certain energy threshold with respect to the object identification, and thus accuracy can be improved for object identification.Type: ApplicationFiled: December 28, 2012Publication date: October 23, 2014Inventors: Shuwei LI, Zhiqiang Chen, Yuanjing Li, Ziran Zhao, Yinong Liu, Qingjun Zhang, Weibin Zhu, Yi Wang, Shuqing Zhao, Wenjian Zhang
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Patent number: 7852981Abstract: Disclosed is a detector device, comprising: an adjustable positioning base and a detector module. The adjustable positioning base includes: a horizontal plate being able to fixedly connect onto an annular rotation table or disk; and a vertical plate extending from the horizontal plate and generally perpendicular to the horizontal plate. A horizontal through long groove is provided at one side of the vertical plate, and the detector module is able to fixedly installed in said horizontal through long groove of the adjustable positioning base. By employing the technical solution defined in the present invention, the detector device has a compact structure, and precision adjustment and positioning for the detector device can be achieved. In addition, the present invention also provides a CT inspection system having the above detector device.Type: GrantFiled: December 23, 2008Date of Patent: December 14, 2010Assignees: Tsinghua University, Nuctech Company LimitedInventors: Xilei Luo, Zhiqiang Chen, Yuanjing Li, Yulan Li, Yinong Liu, Li Zhang, Ziran Zhao, Wanlong Wu, Shuqing Zhao, Bin Sang, Hailin Wang, Shuo Cao, Dong Lin, Zhimin Zheng
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Patent number: 7724869Abstract: Disclosed is a detector array comprising a first linear array for detecting a first ray and a second ray which penetrate through a first plurality of parts of the inspected object to acquire first values and second values for the first plurality of parts, wherein the second ray is alternately emitted with the first ray; and a second linear array arranged parallel to the first linear array for detecting the first ray and the second ray which penetrate through a second plurality of parts of the inspected object to acquire third values and fourth values for the second plurality of parts, wherein the first plurality of parts is partly identical to the second plurality of parts. With the detector array, the efficiency and material discrimination accuracy can be improved in the scanning inspection of the inspected object by use of alternate dual-energy rays.Type: GrantFiled: April 23, 2007Date of Patent: May 25, 2010Assignees: Tsinghua University, Nuctech Company LimitedInventors: Xuewu Wang, Zhiqiang Chen, Yuanjing Li, Huaqiang Zhong, Qingjun Zhang, Shuqing Zhao
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Publication number: 20090168948Abstract: Disclosed is a detector device, comprising: an adjustable positioning base and a detector module. The adjustable positioning base includes: a horizontal plate being able to fixedly connect onto an annular rotation table or disk; and a vertical plate extending from the horizontal plate and generally perpendicular to the horizontal plate. A horizontal through long groove is provided at one side of the vertical plate, and the detector module is able to fixedly installed in said horizontal through long groove of the adjustable positioning base. By employing the technical solution defined in the present invention, the detector device has a compact structure, and precision adjustment and positioning for the detector device can be achieved. In addition, the present invention also provides a CT inspection system having the above detector device.Type: ApplicationFiled: December 23, 2008Publication date: July 2, 2009Inventors: Xilei Luo, Zhiqiang Chen, Yuanjing Li, Yulan Li, Yinong Liu, Li Zhang, Ziran Zhao, Wanlong Wu, Shuqing Zhao, Bin Sang, Hailin Wang, Shuo Cao, Dong Lin, Zhimin Zheng
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Patent number: 7429738Abstract: The present invention discloses a solid state detector module structure, comprising: an upper support plate and a lower support plate provided opposing to each other, a collimator provided between the upper support plate and the lower support plate for collimating the incident rays; and solid state detector arrays provided between the upper support plate and the lower support plate at the rear side of the collimator in the transmitting direction of the rays, wherein the solid state detector arrays comprises an upper and lower rows, with the upper row of the solid state detector array fixed under the upper support plate, and the lower row thereof fixed on the lower support plate. The present invention further discloses a radiation imaging system having the same. The solid state detector module structure of present invention decreases the scattering of ray beams, increases the capabilities of scattering resistance and the definition of image and enhances inspection speed compared with prior art.Type: GrantFiled: November 3, 2006Date of Patent: September 30, 2008Assignees: Tsinghua University, Nuetech Company LimitedInventors: Yuanjing Li, Qingjun Zhang, Shuqing Zhao, Zhude Dai, Nianming Jiang, Qitian Miao, Zhijun Li
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Publication number: 20070286337Abstract: Disclosed is a detector array comprising a first linear array for detecting a first ray and a second ray which penetrate through a first plurality of parts of the inspected object to acquire first values and second values for the first plurality of parts, wherein the second ray is alternately emitted with the first ray; and a second linear array arranged parallel to the first linear array for detecting the first ray and the second ray which penetrate through a second plurality of parts of the inspected object to acquire third values and fourth values for the second plurality of parts, wherein the first plurality of parts is partly identical to the second plurality of parts. With the detector array, the efficiency and material discrimination accuracy can be improved in the scanning inspection of the inspected object by use of alternate dual-energy rays.Type: ApplicationFiled: April 23, 2007Publication date: December 13, 2007Inventors: Xuewu Wang, Zhiqiang Chen, Yuanjing Li, Huaqiang Zhong, Qingjun Zhang, Shuqing Zhao
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Publication number: 20070096030Abstract: The present invention discloses a solid state detector module structure, comprising: an upper support plate and a lower support plate provided opposing to each other, a collimator provided between the upper support plate and the lower support plate for collimating the incident rays; and solid state detector arrays provided between the upper support plate and the lower support plate at the rear side of the collimator in the transmitting direction of the rays, wherein the solid state detector arrays comprises an upper and lower rows, with the upper row of the solid state detector array fixed under the upper support plate, and the lower row thereof fixed on the lower support plate. The present invention further discloses a radiation imaging system having the same. The solid state detector module structure of present invention decreases the scattering of ray beams, increases the capabilities of scattering resistance and the definition of image and enhances inspection speed compared with prior art.Type: ApplicationFiled: November 3, 2006Publication date: May 3, 2007Applicants: Tsinghua University, Nuctech Company LimitedInventors: Yuanjing Li, Qingjun Zhang, Shuqing Zhao, Zhude Dai, Nianming Jiang, Qitian Miao, Zhijun Li