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1.发明公开Apparatus for measuring the peak voltage applied to a radiation source 失效Apparat zur Messung der a einer Strahlungsquelle angelegten Spitzenspannung。
公开(公告)号：EP0338233A2
公开(公告)日：1989-10-25
申请号：EP89104081.8
申请日：1989-03-08
CPC分类号： H05G1/265
摘要： Apparatus is provided for use in detecting the peak voltage applied to a radiation source operating at an unknown input voltage. The apparatus includes a set of radiation absorbing filters including a first filter which includes a first element that exhibits a known K-absorption edge and a second filter constructed of a second element so that the filters exhibit essentially the same radiation absorption characteristics below the K-absorption edge of the first filter. The filters are adapted to be positioned so as to be irradiated by the radiation source so that the radiation impinges upon a surface of each filter and is partially absorbed as it passes therethrough so as to exit therefrom as attenuated radiation. A detector, such as X-ray film or a pair of photodiodes, is positioned for receiving the attenuated radiation passed by the first and second filters and provides an output indication when the radiation passed by the filters is differently attenuated. This is indicative that the known K-absorption edge of the first filter has been exceeded, thereby providing an indication as to the magnitude of the voltage applied to the radiation source.
摘要翻译： 提供了用于检测施加到以未知输入电压工作的辐射源的峰值电压的装置。 该装置包括一组辐射吸收滤光器，其包括第一滤光器，第一滤光器包括呈现已知K吸收边缘的第一元件和由第二元件构成的第二滤光器，使得滤光器在低于K- 吸收边缘的第一个过滤器。 过滤器适于被定位成被辐射源照射，使得辐射照射在每个过滤器的表面上，并且当其通过时被部分地吸收，从而作为衰减的辐射从其中排出。 放置一个诸如X射线胶片或一对光电二极管的检测器，用于接收由第一和第二滤光片通过的衰减的辐射，并且当滤光片通过的辐射被不同地衰减时提供输出指示。 这表明已经超过了第一滤波器的已知K吸收边缘，由此提供关于施加到辐射源的电压大小的指示。
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2.发明公开
公开(公告)号：EP0402578A3
公开(公告)日：1991-01-09
申请号：EP90105229.0
申请日：1990-03-20
IPC分类号： H05G1/26
CPC分类号： H05G1/265
摘要： Apparatus is provided for use in detecting the input voltage applied to a radiation source (10) operating at an unknown voltage within a given voltage range. The apparatus includes a set of radiation absorbing filters (F1, F2) including a first filter which includes a first chemical element and a second filter which includes a second chemical element. These elements are chosen so that the filters exhibit different radiation absorption characteristics within the given voltage range. The filters are adapted to be positioned so that the first and second filters are irradiated by the radiation source (10) with the radiation (18) impinging upon a surface of each filter and partially absorbed thereby as it passes therethrough so as to exit therefrom as attenuated radiation. A detector (20) receives the attenuated radiation passed by the first and second filters and provides first and second signals (I₁, I₂) having magnitudes which vary with the attenuated radiation respectively passed by the first and second filters. A ratio (34) is determined as to the magnitude of the first signal to that of the second signal with the magnitude of the ratio varying with that of the input voltage. At least one of the first and second elements (F1, F2) exhibits a known K absorption edge within the given voltage range. Consequently as the input voltage is increased to exceed the known K absorption edge that chemical element exhibits a greater attenuation characteristic to extend the useful range of the relationship of the magnitude of the ratio and the input voltage.
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3.发明公开Improved apparatus for measuring the voltage applied to a radiation source 失效Apparat zur Messung der an eine Strahlungsquelle angelegten Spannung。
公开(公告)号：EP0402578A2
公开(公告)日：1990-12-19
申请号：EP90105229.0
申请日：1990-03-20
IPC分类号： H05G1/26
CPC分类号： H05G1/265
摘要： Apparatus is provided for use in detecting the input voltage applied to a radiation source (10) operating at an unknown voltage within a given voltage range. The apparatus includes a set of radiation absorbing filters (F1, F2) including a first filter which includes a first chemical element and a second filter which includes a second chemical element. These elements are chosen so that the filters exhibit different radiation absorption characteristics within the given voltage range. The filters are adapted to be positioned so that the first and second filters are irradiated by the radiation source (10) with the radiation (18) impinging upon a surface of each filter and partially absorbed thereby as it passes therethrough so as to exit therefrom as attenuated radiation. A detector (20) receives the attenuated radiation passed by the first and second filters and provides first and second signals (I₁, I₂) having magnitudes which vary with the attenuated radiation respectively passed by the first and second filters. A ratio (34) is determined as to the magnitude of the first signal to that of the second signal with the magnitude of the ratio varying with that of the input voltage. At least one of the first and second elements (F1, F2) exhibits a known K absorption edge within the given voltage range. Consequently as the input voltage is increased to exceed the known K absorption edge that chemical element exhibits a greater attenuation characteristic to extend the useful range of the relationship of the magnitude of the ratio and the input voltage.
摘要翻译： 提供了用于检测施加到在给定电压范围内以未知电压工作的辐射源（10）的输入电压的装置。 该装置包括一组包括第一滤光器的辐射吸收滤光器（F1，F2），第一滤光器包括第一化学元件和包括第二化学元件的第二滤光器。 选择这些元件使得滤波器在给定的电压范围内表现出不同的辐射吸收特性。 过滤器适于被定位成使得第一和第二过滤器被辐射源（10）照射，辐射（18）撞击在每个过滤器的表面上，并且在其通过时被部分地吸收，从而作为 衰减辐射。 检测器（20）接收由第一和第二滤波器通过的衰减的辐射，并提供具有随着分别通过第一和第二滤波器的衰减辐射而变化的幅度的第一和第二信号（I1，I2）。 确定第一信号的大小与第二信号的幅度的比值（34），其中该比值的大小与输入电压的幅度变化。 第一和第二元件（F1，F2）中的至少一个在给定电压范围内呈现已知的K吸收边。 因此，随着输入电压增加到超过已知的K吸收边缘，化学元素表现出更大的衰减特性，以延长比值大小与输入电压的关系的有用范围。
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4.发明授权
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5.发明授权
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6.发明公开
公开(公告)号：EP0338233A3
公开(公告)日：1991-01-09
申请号：EP89104081.8
申请日：1989-03-08
CPC分类号： H05G1/265
摘要： Apparatus is provided for use in detecting the peak voltage applied to a radiation source operating at an unknown input voltage. The apparatus includes a set of radiation absorbing filters including a first filter which includes a first element that exhibits a known K-absorption edge and a second filter constructed of a second element so that the filters exhibit essentially the same radiation absorption characteristics below the K-absorption edge of the first filter. The filters are adapted to be positioned so as to be irradiated by the radiation source so that the radiation impinges upon a surface of each filter and is partially absorbed as it passes therethrough so as to exit therefrom as attenuated radiation. A detector, such as X-ray film or a pair of photodiodes, is positioned for receiving the attenuated radiation passed by the first and second filters and provides an output indication when the radiation passed by the filters is differently attenuated. This is indicative that the known K-absorption edge of the first filter has been exceeded, thereby providing an indication as to the magnitude of the voltage applied to the radiation source.
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