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1. 发明申请

WO2008126012A3 DETERMINATION OF A SPATIAL GAIN DISTRIBUTION OF A SCINTILLATOR 审中-公开
标题翻译：确定扫描仪空间增益分布
公开(公告)号：WO2008126012A3
公开(公告)日：2009-05-22
申请号：PCT/IB2008051339
申请日：2008-04-09
申请人： PHILIPS INTELLECTUAL PROPERTY , KONINK PHILIPS ELECTZRONICS N , SNOEREN RUDOLPH M , STEINHAUSER HEIDRUN , NOORDHOEK NICOLAAS J , SIMON MATTHIAS
发明人： SNOEREN RUDOLPH M , STEINHAUSER HEIDRUN , NOORDHOEK NICOLAAS J , SIMON MATTHIAS
IPC分类号： G01T1/20
CPC分类号： G01T1/2018 , G01T1/2928
摘要： A method for providing information about a spatial gain distribution of a scintillator for a primary radiation is provided which does not require the irradiation of the scintillator with the primary radiation. The method comprises the step of irradiating the scintillator with a secondary radiation for generating an image of a spatial secondary gain distribution of the scintillator for said second radiation. The spatial secondary gain distribution image corresponds to an image of the spatial primary gain distribution for the primary radiation. In an embodiment of the invention, i.e. in an X-rayimaging device where the primary radiation is X-rayradiation, the invention provides for an accurate calibration of the X-raydetector without irradiating the X-raydetector with X- rayradiation. Rather, irradiation with UV radiation as the secondary radiation provides the desired spatial secondary gain distribution image which can be used for calibration.
摘要翻译：提供了一种用于提供关于主辐射的闪烁体的空间增益分布的信息的方法，其不需要用初级辐射照射闪烁体。该方法包括用二次辐射照射闪烁体的步骤，用于产生用于所述第二辐射的闪烁体的空间二次增益分布的图像。空间二次增益分布图像对应于初级辐射的空间初级增益分布的图像。在本发明的一个实施例中，即在主辐射是X射线照射的X射线成像装置中，本发明提供了X射线检测器的精确校准，而不用X射线照射X射线检测器。相反，用UV辐射作为辅助辐射的照射提供了可用于校准的期望的空间二次增益分布图像。

2. 发明申请

WO2008126009A3 REDUCING TRAP EFFECTS IN A SCINTILLATOR BY APPLICATION OF SECONDARY RADIATION 审中-公开
标题翻译：通过应用二次辐射降低扫描仪中的陷阱效应
公开(公告)号：WO2008126009A3
公开(公告)日：2009-05-22
申请号：PCT/IB2008051329
申请日：2008-04-08
申请人： PHILIPS INTELLECTUAL PROPERTY , KONINKL PHILIPS ELECTRONICS NV , SNOEREN RUDOLPH M , STEINHAUSER HEIDRUN , NOORDHOEK NICOLAAS J , SIMON MATTHIAS
发明人： SNOEREN RUDOLPH M , STEINHAUSER HEIDRUN , NOORDHOEK NICOLAAS J , SIMON MATTHIAS
IPC分类号： G01T1/20
CPC分类号： G01T1/2018 , G01T1/20
摘要： According to an embodiment of the invention, a radiation detector device (10) for detecting a primary radiation (6) comprises a scintillator (12) which generates a converted primary radiation in response to incoming primary radiation (6) and a photo detector (14) for detecting the converted primary radiation. The radiation detector device (10) further comprises a secondary radiation source (20) for irradiating the scintillator (12) with a secondary radiation (22) which has a wavelength different from a wavelength of the first radiation (6) and which is capable of producing a spatially more uniform response of the scintillator (12) to primary radiation. In an embodiment of the invention, the radiation detector device (10) is an X-ray detector of an X-ray imaging apparatus where the primary radiation is X-ray radiation and the secondary radiation has a wavelength between 350 nm and 450 nm. According to an embodiment, the irradiation with the secondary radiation, e.g. UV radiation, produces a uniform gain distribution of the X-ray detector (10).
摘要翻译：根据本发明的实施例，用于检测初级辐射（6）的辐射检测器装置（10）包括闪烁体（12），其响应于入射的主辐射（6）和光检测器（14）产生转换的一次辐射）用于检测转换的一次辐射。辐射检测器装置（10）还包括用于用闪光体（12）照射具有与第一辐射（6）的波长不同的波长的次辐射（22）的次辐射源（20）产生闪烁体（12）对初级辐射的空间上更均匀的响应。在本发明的一个实施例中，辐射检测器装置（10）是X射线成像装置的X射线检测器，其中初级辐射是X射线辐射，二次辐射具有在350nm和450nm之间的波长。根据一个实施例，用二次辐射的照射，例如， UV辐射，产生X射线检测器（10）的均匀增益分布。

3. 发明申请

WO2010070527A2 SEMICIRCULAR INVERSED OFFSET SCANNING FOR ENLARGED FIELD OF VIEW 3D 审中-公开
标题翻译：用于扩大视野3D的半圆形反向偏移扫描
公开(公告)号：WO2010070527A2
公开(公告)日：2010-06-24
申请号：PCT/IB2009055572
申请日：2009-12-08
申请人： KONINKL PHILIPS ELECTRONICS NV , NOORDHOEK NICOLAAS J
发明人： NOORDHOEK NICOLAAS J
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/4014 , A61B6/4233 , A61B6/4435 , A61B6/4441 , A61B6/4452 , A61B6/508
摘要： A computed tomography acquisition method, an imaging system, a computer readable medium provides laterally displacing a radiation detector (204) from a position with centered detector geometry with a centered transverse field of view to a first offset position (212); emitting first radiation by the radiation source (202), detecting the first radiation by the radiation detector (204) and acquiring projection data indicative of the first radiation; rotating the support around the rotational axis (214) by 180°; emitting second radiation by the radiation source (202), detecting the second radiation by the radiation detector (204) and acquiring projection data indicative of the second radiation; displacing the radiation detector (204) from the first offset position to a second offset position (226), with opposite direction and double length of the first displacement (a); emitting third radiation by the radiation source (202), detecting the third radiation by the radiation detector (204) and acquiring projection data indicative of the third radiation; rotating the support around the rotational axis (214) by 180°; and emitting fourth radiation by the radiation source (202), detecting the fourth radiation by the radiation detector (204) and acquiring projection data indicative of the fourth radiation.
摘要翻译：一种计算机断层摄影采集方法，一种成像系统，一种计算机可读介质，用于提供辐射探测器（204）从具有居中横向视场的中心探测器几何位置到第一偏移位置（212）的横向位移; 通过所述辐射源（202）发射第一辐射，由所述辐射检测器（204）检测所述第一辐射并且获取指示所述第一辐射的投影数据; 围绕旋转轴线（214）旋转支撑件180°; 由所述辐射源（202）发射第二辐射，由所述辐射检测器（204）检测所述第二辐射并获取指示所述第二辐射的投影数据; 以第一位移（a）的相反方向和双倍长度将辐射探测器（204）从第一偏移位置移位到第二偏移位置（226）; 由辐射源发射第三辐射，由辐射检测器检测第三辐射并获取指示第三辐射的投影数据; 围绕旋转轴线（214）旋转支撑件180°; 以及由辐射源（202）发射第四辐射，由辐射检测器（204）检测第四辐射并且获取指示第四辐射的投影数据。

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