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公开(公告)号：US4121105A
公开(公告)日：1978-10-17
申请号：US739455
申请日：1976-11-08
Applicant: Elias E. Solomon
Inventor： Elias E. Solomon
CPC classification number: H01J41/08 , G08B17/11 , G08B17/113
Abstract: An ionization detecting fire alarm device that comprises a double chamber structure, a source disposed in at least one of the chambers and a vernier adjusting screw electrode protruding into one chamber. The chamber containing the adjustable electrode is more open to the atmosphere than the other chamber. Porting is provided between chambers and detection occurs by sensing the rate of change of ionization current in the chamber structure. The source or sources, one being in each chamber, is a beta source such as a nickel 63 source. A change in ionization current is detected by a unique circuit of this invention which comprises a programmable unijunction transistor oscillator circuit.
Abstract translation: 一种电离检测火灾报警装置，包括双室结构，设置在至少一个室中的源和突出到一个室中的游标调节螺钉电极。 容纳可调节电极的腔室比其他腔室对大气更开放。 在室之间提供移动，并且通过感测室结构中的电离电流的变化率来进行检测。 源或源，一个在每个室中，是诸如镍63源的β源。 电离电流的变化由本发明的唯一电路检测，其包括可编程单结晶体管振荡器电路。
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公开(公告)号：US4080535A
公开(公告)日：1978-03-21
申请号：US715258
申请日：1976-08-17
Applicant: David C. Phillips , William M. Hickam , Scott L. Anderson
Inventor： David C. Phillips , William M. Hickam , Scott L. Anderson
Abstract: In a hydrogen cooled dynamoelectric machine, an ion chamber detector monitors thermally produced particulates. Specificity and sensitivity of the ion chamber detector are improved by applying an electrical potential of a limited predetermined range to the electrodes of the detector and operation of the detector occurs within a well defined subsaturation range.
Abstract translation: 在氢冷式电动机中，离子室检测器监测热产生的微粒。 离子室检测器的特异性和灵敏度通过将有限的预定范围的电位施加到检测器的电极而得到改善，并且检测器的操作发生在明确的不饱和范围内。
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公开(公告)号：US4047041A
公开(公告)日：1977-09-06
申请号：US678074
申请日：1976-04-19
Applicant: John M. Houston
Inventor： John M. Houston
CPC classification number: H01J47/02 , A61B6/032 , A61B6/4007
Abstract: An ionization chamber array, useful in computerized X-ray tomography apparatus comprises a plurality of substantially parallel, rod-like cathodes disposed equi-distant between parallel planar anodes in a high pressure detector gas. X-ray energy enters the array in the plane of the cathodes in a direction substantially parallel to their long dimensions.
Abstract translation: 可用于计算机化X射线断层摄影装置的电离室阵列包括在高压检测器气体中平行放置在平行阳极之间的多个大致平行的棒状阴极。 X射线能量在基本上平行于其长尺寸的方向上在阴极的平面内进入阵列。
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公开(公告)号：US4047039A
公开(公告)日：1977-09-06
申请号：US692287
申请日：1976-06-03
Applicant: John M. Houston
Inventor： John M. Houston
CPC classification number: H01J47/02
Abstract: A two-dimensional array of ionization chamber x-ray detector cells comprises a plurality of planar anode assemblies disposed equi-distant between parallel cathode plates in a gas of high atomic number. Each anode assembly comprises a plurality of conductive strips disposed on a thin dielectric sheet in a direction substantially parallel to the incident x-ray energy.
Abstract translation: 电离室x射线检测器单元的二维阵列包括在原子序数高的气体中平行阴极板之间等距设置的多个平面阳极组件。 每个阳极组件包括在基本上平行于入射的x射线能量的方向上设置在薄电介质片上的多个导电条。
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公开(公告)号：US4031396A
公开(公告)日：1977-06-21
申请号：US616930
申请日：1975-09-26
Applicant: Nathan Rey Whetten , John M. Houston
Inventor： Nathan Rey Whetten , John M. Houston
CPC classification number: H01J47/02 , G01T1/2935
Abstract: An ionization chamber for use in determining the spatial distribution of x-ray photons in tomography systems comprises a plurality of substantially parallel, planar anodes separated by parallel, planar cathodes and enclosed in a gas of high atomic weight at a pressure from approximately 10 atmospheres to approximately 50 atmospheres. The cathode and anode structures comprise metals which are substantially opaque to x-ray radiation and thereby tend to reduce the resolution limiting effects of x-ray fluoresence in the gas.In another embodiment of the invention the anodes comprise parallel conductive bars disposed between two planar cathodes.Guard rings eliminate surface leakage currents between adjacent electrodes.
Abstract translation: 用于确定层析成像系统中x射线光子的空间分布的电离室包括由平行的平面阴极分离的多个基本上平行的平面阳极，并且在大约10个大气压的压力下封闭在高原子量的气体中 约50个大气压。 阴极和阳极结构包括对x射线辐射基本不透明的金属，从而倾向于降低限制x射线荧光在气体中的影响。
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Patent Agency Ranking
公开(公告)号：US3884817A
公开(公告)日：1975-05-20
申请号：US27704272
申请日：1972-08-01
Applicant: NAT RES DEV
Inventor： JILBERT PHILLIP HARVEY
CPC classification number: H01J47/02
Abstract: The invention concerns ionisation chambers with particular reference to air-equivalent ionisation chambers. In order to ensure that similar chambers have similar sensitivities and responses the surface of the chamber bounding the active volume carries a conducting material, which may be a colloidal graphite, arranged in the form of lines so that the area of the conducting material occupies only a small proportion of the area of said surface.
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147.发明授权Dosimeter for penetrating ionizing radiation of any composition and spectrum 失效用于沉积任何组合物和光谱的离子化辐射的剂量计
公开(公告)号：US3710116A
公开(公告)日：1973-01-09
申请号：US3710116D
申请日：1969-03-04
Applicant: ZIELCZYNSKI M , ZARNOWIECKI K
Inventor： ZIELCZYNSKI M , ZARNOWIECKI K
Abstract: A dosimeter includes a detector provided with a cylindrical inner measuring electrode and a pair of outer semi-cylindrical voltage electrodes, the latter being supplied with voltages of opposite polarity to provide in the space between electrodes a differential chamber having a first saturated volume and a second volume for column recombination of ions, the two volumes overlapping: a recorder connected with the measuring electrode provides a measure of dose equivalent.
Abstract translation: 剂量计包括具有圆柱形内部测量电极和一对外部半圆柱形电压电极的检测器，后者被提供有相反极性的电压，以在电极之间的空间中提供具有第一饱和体积的差动室和第二饱和容积 用于离子的柱复合的体积，两个体积重叠：与测量电极连接的记录器提供剂量当量的量度。
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公开(公告)号：US3676682A
公开(公告)日：1972-07-11
申请号：US3676682D
申请日：1968-10-30
Applicant: FRED W FALK
Inventor： FALK FRED W
CPC classification number: H01J47/02
Abstract: An ionization chamber for measuring absorbed radiation is disclosed, the chamber including a housing which incorporates an anode, a cathode, and a space charge electrode. The anode comprises a conducting plate which has a plurality of protruding needle points with each of the needle points and the conducting plate being at the same electrical potential. The space charge electrode has a plurality of holes therein and is physically displaced from the anode with the holes of the space charge electrode being in registry with the needle points of the anode. The potential of the space charge electrode is less than that of the anode itself.
Abstract translation: 公开了一种用于测量吸收的辐射的电离室，该腔室包括结合有阳极，阴极和空间电荷电极的壳体。 阳极包括导电板，该导电板具有多个突出的针尖，每个针尖和导电板处于相同的电位。 空间电荷电极在其中具有多个孔，并且物理上偏离阳极，空间电荷电极的孔与阳极的针尖对准。 空间电荷电极的电位小于阳极本身的电位。
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149.发明授权Multi-plate ionisation chamber with gamma-compensation and guard-ring electrodes 失效具有伽马补偿和保护环电极的多板电离室
公开(公告)号：US3385988A
公开(公告)日：1968-05-28
申请号：US38859864
申请日：1964-08-10
Applicant: ENGLISH ELECTRIC CO LTD
Inventor： HO HYUN KYUNG
CPC classification number: H01J47/02 , H01J47/1216
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150.发明授权
公开(公告)号：US3327150A
公开(公告)日：1967-06-20
申请号：US28896363
申请日：1963-06-19
Applicant: ELECTRONICS CORP AMERICA
Inventor： PHILIP GIUFFRIDA , JOHN PRATT , GRAVES DONALD L
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