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31. 发明授权

US4871915A Detector for bremsstrahlung-isochromatic-spectroscopy (BIS) 失效
标题翻译： bre致辐射 - 等色光谱（BIS）检测器
公开(公告)号：US4871915A
公开(公告)日：1989-10-03
申请号：US277549
申请日：1988-11-29
申请人： Kevin C. Prince
发明人： Kevin C. Prince
IPC分类号： H01J47/00
CPC分类号： H01J47/004 , H01J47/005
摘要： A detector for bremsstrahlung-isochromatic-spectroscopy (BIS) utilizing a gas-filled metal cylinder forming an outer electrode and a wire extending axially in the cylinder has an inner electrode. The window for the UV photons is constituted of MgF.sub.2 while the counting gas is a mixture of dimethylether and an inert gas and in which the pressure of the dimethylether is 0.2 to 0.5 mbar.
摘要翻译：利用形成外部电极的气体填充金属圆柱体和在圆柱体中轴向延伸的线的bre致辐射 - 等色谱（BIS）检测器具有内部电极。紫外光子的窗口由MgF2构成，而计数气体是二甲醚和惰性气体的混合物，二甲基醚的压力为0.2至0.5毫巴。

32. 发明授权

US4306155A Gas-filled x-ray detector with improved window 失效
标题翻译：充气x射线探测器，改善了窗户
公开(公告)号：US4306155A
公开(公告)日：1981-12-15
申请号：US137321
申请日：1980-04-04
申请人： Dennis J. Cotic
发明人： Dennis J. Cotic
IPC分类号： H01J47/02 , G01T1/185 , H01J5/18 , H01J47/00 , G01T1/18
CPC分类号： H01J5/18 , H01J47/004
摘要： A multicell x-ray detector of the gas-filled ionization type includes a metal body in which the front, rear, end and bottom walls together with a sealed cover define a channel in which there is a row of spaced apart electrode plates which define cells in which ionization events and resultant analog signals are produced in response to absorption of x-ray photons by the gas. The x-ray entrance window is formed in the front wall and extends over substantially the length of the channel. The window has a curved cross section which permits restriction of its internal stresses to tensile stresses so its thickness and, hence, its x-ray absorption is minimized. The edges of the electrode plates which are presented toward the window are curved to be concentric with and slightly spaced from the window.
摘要翻译：气体电离型的多单元x射线检测器包括金属体，其中前壁，后端，端壁和底壁与密封盖一起限定通道，在该通道中存在限定电池的一排间隔开的电极板其中响应于气体对x射线光子的吸收而产生电离事件和合成的模拟信号。 x射线入口窗口形成在前壁中并在通道的基本长度上延伸。窗口具有弯曲的横截面，其允许其内部应力限制到拉伸应力，因此其厚度以及因此其x射线吸收最小化。向窗户呈现的电极板的边缘是弯曲的，以与窗口同心并且与窗口稍微间隔开。

33. 发明专利

JP3375361B2 X-ray detector 失效
公开(公告)号：JP3375361B2
公开(公告)日：2003-02-10
申请号：JP3073493
申请日：1993-02-19
申请人：コーニンクレッカフィリップスエレクトロニクスエヌヴィ
发明人：ヤコブスデコニングヨハネス
IPC分类号： G01T1/18 , G01T1/185 , G01T7/00 , H01J47/00 , H01J47/02
CPC分类号： H01J47/004 , G01T1/185

34. 发明专利

JPS59127355A Gas flow counter 失效
标题翻译：气体流量计
公开(公告)号：JPS59127355A
公开(公告)日：1984-07-23
申请号：JP23122382
申请日：1982-12-30
申请人： Fuji Electric Co Ltd
发明人： MATSUDA MIKIHIKO , YAMAMIYA SEISHI
IPC分类号： H01J47/06 , G01T1/18 , H01J47/00
CPC分类号： H01J47/004
摘要： PURPOSE:To obtain a gas flow counter providing good sensitivity for detecting radioactivity while requiring a smaller amount of the supply gas for the flow counting, by using for the entrance window of the radioactive ray a thin film made of a mechanically strong and light weight organic film as the base material and an organic layer allowing a smaller amount of gas to pass therethrough formed on the base material. CONSTITUTION:The thin film constituting the entrance window of the radioactive ray is constructed, for example, of a polyester film 10 of good mechanical property and heat resistivity as the base material, a metallic layer 11 as the cathode material formed on its one side, and a vinylidene chloride layer 12 formed on its other side. While such gases in the atmosphere as water vapor, oxygen, and carbo dioxide, pass through the polyester film 10, the amount of the passed-through gases can be decreased by the use of the vinylidene chloride layer 12, and thus the amount of the supplied gas for the flow counting which so far was proportionally increased for keeping purity of the gas for the flow counting within the gas flow counter can now be largely decreased. As to the thickness of the vinylidene chloride layer 12, 2 to 4mum of the same can sufficiently prevent the gas passing through the polyester film 10.
摘要翻译：目的：为了获得气流计数器，为检测放射性提供良好的灵敏度，同时需要较少量的用于流量计算的供应气体，通过使用放射线入射窗，由机械强度和重量轻的有机物制成的薄膜膜和作为基材的少量气体通过的有机层。构成：构成放射线入射窗的薄膜例如由具有良好机械性能和耐热性的聚酯薄膜10构成为基材，在其一侧形成作为阴极材料的金属层11，和在其另一侧上形成的偏二氯乙烯层12。虽然气氛中的这些气体如水蒸汽，氧气和二氧化碳通过聚酯膜10，但是通过使用偏二氯乙烯层12可以减少通过气体的量，因此，为了保持气体流量计数器内的流量计量的气体的纯度，现在可以大幅度地减少用于流量计数的供给气体到目前为止比例增加。对于偏二氯乙烯层12的厚度，其2〜4μm可以充分地防止通过聚酯膜10的气体。

35. 发明授权

EP0748456B1 POLYETHYLENE NAPHTALATE X-RAY WINDOW 失效
标题翻译：具有窗口聚乙烯X射线
公开(公告)号：EP0748456B1
公开(公告)日：2001-09-12
申请号：EP95934804.6
申请日：1995-11-09
申请人： Koninklijke Philips Electronics N.V.
发明人： VAN DER BORST, Johannes
IPC分类号： G01T1/185 , H01J47/00
CPC分类号： H01J5/18 , H01J47/004
摘要： An X-ray window for an X-ray component such as an X-ray detector. Windows of this kind must be as thin as possible so as to minimize X-ray absorption. The known material polypropylene is not available in the desired thickness of the order of 1νm, and stretching of this material so as to reduce the thickness causes an inadmissible spread in thickness. The material polyethylene naphtalate (PEN) in accordance with the invention is available in the desired thickness and with a much smaller spread in thickness. Furthermore, the window material should exhibit suitable mechanical properties (such as strength, rigidity and tightness) which are not allowed to degrade significantly under the influence of continuously varying circumstances in respect of pressure, temperature and X-rays. In comparison with the known polyethylene terephtalate (PET), PEN in this respect has better properties which satisfy the mechanical requirements.

36. 发明公开

EP0748512A1 METHOD OF MANUFACTURING A THIN, RADIOTRANSPARENT WINDOW 失效
标题翻译：方法产生X射线的半透明窗口
公开(公告)号：EP0748512A1
公开(公告)日：1996-12-18
申请号：EP95936712.0
申请日：1995-11-27
申请人： PHILIPS ELECTRONICS N.V.
发明人： MAAS, Henricus, Godefridus, Rafael , VERHOEVEN, Johannes, Franciscus, Cornelis, Maria , POLITIEK, Jarig
IPC分类号： G21K5 , G01T7 , H01J5 , H01J35 , H01J47 , H01L21
CPC分类号： H01J5/18 , H01J47/004
摘要： A method of manufacturing a radiotransparent window. In order to achieve suitable radiation transmission, notably for long-wave X-rays, the window is made of a material containing exclusively light elements such as carbon and hydrogen. This material is deposited on a metal or semiconductor substrate, for example of silicon, after which the window material is exposed to such a dose of ion bombardment that the material is converted into glassy carbon. This carbon modification can be realised in very thin layers and is chemically very resistant, so that it can serve very well as an etching stop for etching off (a part of) the substrate material.

37. 发明公开

EP0748456A1 POLYETHYLENE NAPHTALATE X-RAY WINDOW 失效
标题翻译：具有窗口聚乙烯X射线
公开(公告)号：EP0748456A1
公开(公告)日：1996-12-18
申请号：EP95934804.0
申请日：1995-11-09
申请人： PHILIPS ELECTRONICS N.V.
发明人： VAN DER BORST, Johannes
IPC分类号： G01T1 , G01T7 , H01J5 , H01J47
CPC分类号： H01J5/18 , H01J47/004
摘要： An X-ray window for an X-ray component such as an X-ray detector. Windows of this kind must be as thin as possible so as to minimize X-ray absorption. The known material polypropylene is not available in the desired thickness of the order of 1νm, and stretching of this material so as to reduce the thickness causes an inadmissible spread in thickness. The material polyethylene naphtalate (PEN) in accordance with the invention is available in the desired thickness and with a much smaller spread in thickness. Furthermore, the window material should exhibit suitable mechanical properties (such as strength, rigidity and tightness) which are not allowed to degrade significantly under the influence of continuously varying circumstances in respect of pressure, temperature and X-rays. In comparison with the known polyethylene terephtalate (PET), PEN in this respect has better properties which satisfy the mechanical requirements.

38. 发明公开

EP0319378A1 Procédé de fabrication d'un détecteur de rayonnements 失效
标题翻译： Herstellungsverfahrenfüreinen Strahlungsdetektor。
公开(公告)号：EP0319378A1
公开(公告)日：1989-06-07
申请号：EP88402958.8
申请日：1988-11-24
申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE
发明人： Bost, Joseph , Gagelin, Jean-Jaques
IPC分类号： H01J47/00 , H01J5/18
CPC分类号： H01J47/004
摘要： La structure et la fabrication de la fenêtre d'entrée de ce détecteur sont simplifiées. Le détecteur de rayonnement comprend :
- une enceinte étanche (2) contenant un fluide sous pression, et dans laquelle est disposé un ensemble de détection,
- une fenêtre d'entrée de l'enceinte étanche (2) au travers de laquelle les rayonnements à détecter pénètrent dans l'enceinte étanche (2), et
- des moyens de fixation de la fenêtre d'entrée sur l'enceinte étanche (2).
Selon l'invention, la fenêtre d'entrée est formée par une feuille préformée (10), par un champ de forces tel que la déformation de la feuille (10) est au moins égale à celle obtenue par une feuille non préformée et soumise à la pression de fonctionnement du détecteur.
Application à la dosimétrie, à la tomographie médicale, la radiologie et pour les controles non destructifs.
摘要翻译：该检测器的入口窗口的结构和制造简化。辐射检测器包括： - 密封的外壳（2），其包含处于压力下的流体，并且其内部设置有检测单元， - 用于密封外壳（2）的入口窗口，待检测的辐射通过入口窗口进入密封的外壳（ 2）和 - 将入口窗口紧固到密封的外壳（2）上的装置。根据本发明，入口窗口通过预定片材（10）通过力场形成，使得片材（10）的变形至少等于由经受操作压力的非预成型片材获得的的检测器。应用于剂量计量，医学断层扫描，放射学和非破坏性测试。

39. 发明授权

EP0127074B1 Radiation detector 失效
标题翻译：辐射探测器
公开(公告)号：EP0127074B1
公开(公告)日：1987-11-25
申请号：EP84105595.7
申请日：1984-05-16
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Yoshida, Yuzo c/o Patent Division
IPC分类号： H01J47/02 , A61B6/02
CPC分类号： H01J47/02 , A61B6/032 , H01J47/004

40. 发明公开

EP0127074A2 Radiation detector 失效
公开(公告)号：EP0127074A2
公开(公告)日：1984-12-05
申请号：EP84105595.7
申请日：1984-05-16
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Yoshida, Yuzo c/o Patent Division
IPC分类号： H01J47/02 , A61B6/02
CPC分类号： H01J47/02 , A61B6/032 , H01J47/004
摘要： A radiation detector (30) has a housing (32) in which is sealed a gas to be ionized when X-rays are projected therein. A plurality of electrodes for detecting the X-rays are arranged in the housing (32), and the housing is curved with a fixed curvature along the arranged direction of the electrodes. A vessel portion (34) of the housing (32) is closed by a cover portion (36). A cut (34a) extending in the longitudinal direction of the housing (32) is formed in one side wall of the vessel portion (34). The cut is closed by an X-ray window (40). A window member (42) of the X-ray window (40) is made of carbon fiber reinforced plastics. The window member (42) is bonded to the inside face of the side wall of the vessel portion (34), and is pressed against the inside face by the pressure of the gas sealed in the housing (32). Thus, the window member (42) and the vessel portion (34) are fully hermetically sealed. Since the X-ray transmission factor of the carbon fiber reinforced plastics is high, even low-energy X-rays can be projected with high intensity between the electrodes.

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