公开(公告)号：US09664803B2

公开(公告)日：2017-05-30

申请号：US15219022

申请日：2016-07-25

申请人： Silke Reitz ,  Martin Spahn

发明人： Silke Reitz ,  Martin Spahn

IPC分类号： G01T7/00 ,  G01T1/24

CPC分类号： G01T7/005 ,  G01T1/247

摘要： A method for calibrating a counting digital X-ray detector includes performing a threshold value scan in at least one defined X-ray spectrum for irradiating the X-ray detector, which includes a matrix composed of pixel elements, storing count rates of the pixel elements as a function of respective applied threshold values, and from results of a measurement of count rates of the pixel elements, determining or calculating individual correction threshold values for the individual pixel elements. The individual correction threshold values correct a threshold value that is to be applied to the pixel elements for the defined X-ray spectrum such that threshold value noise is reduced.

公开(公告)号：US20140185781A1

公开(公告)日：2014-07-03

申请号：US14146564

申请日：2014-01-02

申请人： Silke Reitz ,  Martin Spahn

发明人： Silke Reitz ,  Martin Spahn

IPC分类号： G01T7/00

CPC分类号： G01T7/005 ,  G01T1/247

摘要： A method for calibrating a counting digital X-ray detector includes performing a threshold value scan in at least one defined X-ray spectrum for irradiating the X-ray detector, which includes a matrix composed of pixel elements, storing count rates of the pixel elements as a function of respective applied threshold values, and from results of a measurement of count rates of the pixel elements, determining or calculating individual correction threshold values for the individual pixel elements. The individual correction threshold values correct a threshold value that is to be applied to the pixel elements for the defined X-ray spectrum such that threshold value noise is reduced.

摘要翻译： 用于校准计数数字X射线检测器的方法包括在至少一个定义的X射线光谱中执行阈值扫描以照射包括由像素元素组成的矩阵的X射线检测器，存储像素元件的计数率 作为各个施加的阈值的函数，以及从像素元件的计数率的测量结果，确定或计算各个像素元件的各个校正阈值。 各个校正阈值校正要应用于所定义的X射线谱的像素元素的阈值，使得阈值噪声降低。

公开(公告)号：US20160334521A1

公开(公告)日：2016-11-17

申请号：US15219022

申请日：2016-07-25

申请人： Silke Reitz ,  Martin Spahn

发明人： Silke Reitz ,  Martin Spahn

IPC分类号： G01T7/00 ,  G01T1/24

CPC分类号： G01T7/005 ,  G01T1/247

摘要： A method for calibrating a counting digital X-ray detector includes performing a threshold value scan in at least one defined X-ray spectrum for irradiating the X-ray detector, which includes a matrix composed of pixel elements, storing count rates of the pixel elements as a function of respective applied threshold values, and from results of a measurement of count rates of the pixel elements, determining or calculating individual correction threshold values for the individual pixel elements. The individual correction threshold values correct a threshold value that is to be applied to the pixel elements for the defined X-ray spectrum such that threshold value noise is reduced.

摘要翻译： 用于校准计数数字X射线检测器的方法包括在至少一个定义的X射线光谱中执行阈值扫描以照射包括由像素元素组成的矩阵的X射线检测器，存储像素元件的计数率 作为各个施加的阈值的函数，以及从像素元件的计数率的测量结果，确定或计算各个像素元件的各个校正阈值。 各个校正阈值校正要应用于所定义的X射线谱的像素元素的阈值，使得阈值噪声降低。

公开(公告)号：US09417345B2

公开(公告)日：2016-08-16

申请号：US14146564

申请日：2014-01-02

申请人： Silke Reitz ,  Martin Spahn

发明人： Silke Reitz ,  Martin Spahn

IPC分类号： G01T7/00 ,  G01T1/24

CPC分类号： G01T7/005 ,  G01T1/247

摘要： A method for calibrating a counting digital X-ray detector includes performing a threshold value scan in at least one defined X-ray spectrum for irradiating the X-ray detector, which includes a matrix composed of pixel elements, storing count rates of the pixel elements as a function of respective applied threshold values, and from results of a measurement of count rates of the pixel elements, determining or calculating individual correction threshold values for the individual pixel elements. The individual correction threshold values correct a threshold value that is to be applied to the pixel elements for the defined X-ray spectrum such that threshold value noise is reduced.

摘要翻译： 用于校准计数数字X射线检测器的方法包括在至少一个定义的X射线光谱中执行阈值扫描以照射包括由像素元素组成的矩阵的X射线检测器，存储像素元件的计数率 作为各个施加的阈值的函数，以及从像素元件的计数率的测量结果，确定或计算各个像素元件的各个校正阈值。 各个校正阈值校正要应用于所定义的X射线谱的像素元素的阈值，使得阈值噪声降低。