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1. 发明申请

WO2006064403A3 PULSED X-RAY FOR CONTINUOUS DETECTOR CORRECTION 审中-公开
标题翻译：脉冲X射线用于连续探测器校正
公开(公告)号：WO2006064403A3
公开(公告)日：2006-11-23
申请号：PCT/IB2005054069
申请日：2005-12-05
申请人： KONINKL PHILIPS ELECTRONICS NV , LUHTA RANDALL P , CHAPPO MARC A , HARWOOD BRIAN E , MATTSON RODNEY A , VRETTOS CHRIS J
发明人： LUHTA RANDALL P , CHAPPO MARC A , HARWOOD BRIAN E , MATTSON RODNEY A , VRETTOS CHRIS J
IPC分类号： G01T1/29
CPC分类号： A61B6/032 , A61B6/585 , G01T1/24
摘要： A radiographic imaging apparatus (10) comprises a primary radiation source (14) which projects a beam of radiation into an examination region (16). A detector (18) converts detected radiation passing through the examination region (16) into electrical detector signals representative of the detected radiation. The detector (18) has at least one temporally changing characteristic such as an offset B(t) or gain A(t). A grid pulse means (64) turns the primary radiation source (14) ON and OFF at a rate between 1000 and 5000 pulses per second, such that at least the offset B(t) is re-measured between 1000 and 5000 times per second and corrected a plurality of times during generation of the detector signals. The gain A(t) is measured by pulsing a second pulsed source (86, 100, 138) of a constant intensity (XRef) with a second pulse means (88). The gain A(t) is re-measured and corrected a plurality of times per second during generation of the detector signals.
摘要翻译：一种射线照相成像设备（10）包括将辐射束投射到检查区域（16）中的主辐射源（14）。检测器（18）将通过检查区域（16）的检测到的辐射转换为表示检测到的辐射的电检测器信号。检测器（18）具有至少一个时间变化的特性，例如偏移量B（t）或增益A（t）。栅格脉冲装置（64）以1000-5000个脉冲每秒的速率开启和关闭主辐射源（14），使得至少偏移量B（t）在每秒1000和5000次之间重新测量并在检测器信号的产生期间多次校正。通过用第二脉冲装置（88）脉冲恒定强度（XRef）的第二脉冲源（86,100,138）来测量增益A（t）。在生成检测器信号期间，每秒重新测量和校正增益A（t）多次。

2. 发明申请

WO2006064403A2 PULSED X-RAY FOR CONTINUOUS DETECTOR CORRECTION 审中-公开
标题翻译：用于连续检测器校正的脉冲X射线
公开(公告)号：WO2006064403A2
公开(公告)日：2006-06-22
申请号：PCT/IB2005/054069
申请日：2005-12-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , LUHTA, Randall, P. , CHAPPO, Marc, A. , HARWOOD, Brian, E. , MATTSON, Rodney, A. , VRETTOS, Chris, J.
发明人： LUHTA, Randall, P. , CHAPPO, Marc, A. , HARWOOD, Brian, E. , MATTSON, Rodney, A. , VRETTOS, Chris, J.
CPC分类号： A61B6/032 , A61B6/585 , G01T1/24
摘要： A radiographic imaging apparatus (10) comprises a primary radiation source (14) which projects a beam of radiation into an examination region (16). A detector (18) converts detected radiation passing through the examination region (16) into electrical detector signals representative of the detected radiation. The detector (18) has at least one temporally changing characteristic such as an offset B(t) or gain A(t). A grid pulse means (64) turns the primary radiation source (14) ON and OFF at a rate between 1000 and 5000 pulses per second, such that at least the offset B(t) is re-measured between 1000 and 5000 times per second and corrected a plurality of times during generation of the detector signals. The gain A(t) is measured by pulsing a second pulsed source (86, 100, 138) of a constant intensity (XRef) with a second pulse means (88). The gain A(t) is re-measured and corrected a plurality of times per second during generation of the detector signals.
摘要翻译：射线成像设备（10）包括将辐射束投射到检查区域（16）中的主要辐射源（14）。检测器（18）将通过检查区域（16）的检测到的辐射转换成代表检测到的辐射的电检测器信号。检测器（18）具有至少一个时变特性，如偏移量B（t）或增益A（t）。电网脉冲装置（64）以每秒1000至5000个脉冲之间的速率使主辐射源（14）接通和断开，使得至少偏移B（t）在每秒1000至5000次之间重新测量并且在检测器信号的产生期间多次校正。通过用第二脉冲装置（88）脉冲具有恒定强度（XRef）的第二脉冲源（86,100,138）来测量增益A（t）。在检测器信号的产生期间，增益A（t）被重新测量和校正多次。

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