辐射探测器、用在平面束射线照相中的设备及检测电离辐射的方法

    公开(公告)号:CN1205488C

    公开(公告)日:2005-06-08

    申请号:CN00807426.7

    申请日:2000-03-30

    CPC classification number: H01J47/04

    Abstract: 一种用于电离辐射的探测的探测器(64),包括:一个腔室(91),填充有一种电离气体;第一和第二电极装置(2,1),提供在所述腔室中,在他们之间有一个空间,所述空间包括一个转换和漂移体积(13);用于电子雪崩放大的装置(17),布置在所述腔室中在所述第一和第二电极装置(2,1)之间;及至少一个读出元件装置(4;5;15),用于探测电子雪崩。该探测器的特征在于:提供一个辐射进口(10),从而辐射进入在第一与第二电极装置(2,1)之间的转换和漂移体积(13);用于电子雪崩放大的装置(17)包括至少一个雪崩阴极(18)和至少一个雪崩阳极(4;19;20),在他们之间施加一个电压以便生成用于雪崩放大的至少一个电场;及用于电子雪崩放大的所述装置(17)包括多个雪崩区域。

    辐射探测器、用在平面束射线照相中的设备及检测电离辐射的方法

    公开(公告)号:CN1350646A

    公开(公告)日:2002-05-22

    申请号:CN00807426.7

    申请日:2000-03-30

    CPC classification number: H01J47/04

    Abstract: 一种用于电离辐射的探测的探测器(64);一种用在平面束射线照相中、包括这样一个探测器的设备;及一种用来探测电离辐射的方法。该探测器包括:一个腔室,填充有一种电离介质;第一和第二电极装置(2、1、18、19),提供在所述腔室中,在它们之间有一个空间,所述空间包括一个转换体积(13);用于电子雪崩放大的装置(17),布置在所述腔室中;及至少一个读出元件装置(15),用于探测电子雪崩。提供一个辐射进口,从而辐射进入在第一与第二电极装置之间的转换体积。为了实现良好定义的雪崩,用于电子雪崩放大的装置包括多个雪崩区域。

    RADIATION DETECTOR, AN APPARATUS FOR USE IN PLANAR BEAM RADIOGRAPHY AND A METHOD FOR DETECTING IONIZING RADIATION
    4.
    发明公开
    RADIATION DETECTOR, AN APPARATUS FOR USE IN PLANAR BEAM RADIOGRAPHY AND A METHOD FOR DETECTING IONIZING RADIATION 审中-公开
    辐射检测设备中使用的摄片与2维梁,及检测方法电离辐射

    公开(公告)号:EP1185887A1

    公开(公告)日:2002-03-13

    申请号:EP00925795.7

    申请日:2000-03-30

    Applicant: XCounter AB

    CPC classification number: H01J47/04

    Abstract: A detector (64) for detection of ionizing radiation, an apparatus for use in planar beam radiography, comprising such a detector, and a method for detecting ionizing radiation. The detector comprises: a chamber filled with an ionizable medium; first and second electrode arrangements (2, 1, 18, 19) provided in said chamber with a space between them, said space including a conversion volume (13); means for electron avalanche amplification (17) arranged in said chamber; and, at least one arrangement of read-out elements (15) for detection of electron avalanches. A radiation entrance is provided so that radiation enters the conversion volume between the first and second electrode arrangements. In order to achieve well-defined avalanches the means for electron avalanche amplification includes a plurality of avalanche regions.

    Ionization chamber
    5.
    发明公开
    Ionization chamber 失效
    Ionisationskammer。

    公开(公告)号:EP0395945A2

    公开(公告)日:1990-11-07

    申请号:EP90107466.6

    申请日:1990-04-19

    CPC classification number: H01J47/02 H01J47/04

    Abstract: An ionization chamber can stably measure a weak ionizing radiation with high sensitivity. The ionization chamber comprises an electrically conductive charge collecting electrode (32) having a magnetic substance (30) or a permanent magnet; an electromagnet (34) for positioning the charge collecting electrode (32) in non-contact with the other part of the ionization chamber; a position sensor (36,38) for detecting the position of the charge collecting electrode; a circuit (40) for feedback-controlling the magnetic force of the electromagnet to maintain the charge collecting electrode at the substantially same position; and ionization current detecting circuit (42) for detecting an ionization current collected at the charge collecting electrode by ionization due to radiations applied to the ionization chamber.

    Abstract translation: 电离室可以高灵敏度地稳定地测量弱电离辐射。 电离室包括具有磁性物质(30)或永磁体的导电电荷收集电极(32) 用于将电荷收集电极(32)定位成与电离室的另一部分非接触的电磁体(34); 位置传感器(36,38),用于检测所述电荷收集电极的位置; 电路(40),用于反馈控制电磁体的磁力,以将电荷收集电极维持在基本相同的位置; 以及电离电流检测电路(42),用于通过由于施加到电离室的辐射而通过电离来检测在电荷收集极处收集的电离电流。

    SCANNING RADIOGRAPHIC DEVICE (VARIANTS)
    6.
    发明申请
    SCANNING RADIOGRAPHIC DEVICE (VARIANTS) 审中-公开
    扫描放射性设备(变种)

    公开(公告)号:WO2005004190A1

    公开(公告)日:2005-01-13

    申请号:PCT/RU2004/000266

    申请日:2004-07-06

    CPC classification number: H01J47/04

    Abstract: The invention relates to a scanning radiographic device consisting of an ionising radiation source, a collimator (10) in the form of a longitudinal slit for forming a flat radiation beam (3) and a device for recording the radiation ray passed through a studied object. Said radiation ray recording device comprises data read out, processing and output electronic units (12) and at least one ionising particle detector. A flat capacitor provided with a nonslotted anode (7) and a cut into strips cathode (8) is arranged in the detector body (6) where the radiation passed through the studied object comes up. The length of the strips is selected according to a condition that X-radiation is entirely absorbed by gas. An individual accumulating capacitor whose charge is read out by an electronic unit is connected to each strip, thereby enabling the device to operate in an integrated mode. Said detector is also provided with additional inserts (9, 11) which are arranged at a radiation input and at the end along the ray trace, thereby reducing X-ray losses, setting a required resolution in the scanning direction and reducing requirements to a permissible vibration level and a calibration of the scanning system components

    Abstract translation: 本发明涉及一种由电离辐射源,用于形成平坦辐射束(3)的纵向狭缝形式的准直器(10)和用于记录通过研究对象的辐射线的装置组成的扫描放射线照相装置。 所述放射线记录装置包括数据读出,处理和输出电子单元(12)和至少一个电离粒子检测器。 设置有非阳极阳极(7)的扁平电容器和切割成条形阴极(8)的平板电容器布置在检测器主体(6)中,其中穿过被研究对象的辐射出现。 根据X辐射完全被气体吸收的条件选择条带的长度。 由电子单元读取电荷的单个蓄电池连接到每个条,从而使装置能够以集成模式工作。 所述检测器还设置有附加的插入件(9,11),其被布置在辐射输入端并且沿着光线迹线的端部,从而减少X射线损耗,在扫描方向上设置所需的分辨率,并将要求降低到允许的 振动水平和扫描系统组件的校准

    RÖNTGENDOSISMESSVORRICHTUNG
    7.
    发明申请
    RÖNTGENDOSISMESSVORRICHTUNG 审中-公开
    射线剂量测量装置

    公开(公告)号:WO2007036460A2

    公开(公告)日:2007-04-05

    申请号:PCT/EP2006/066500

    申请日:2006-09-19

    CPC classification number: G01T1/14 H01J47/04

    Abstract: Die Erfindung betrifft eine Röntgendosismessvorrichtung mit einer ersten Kondensatorplatte (1) und einer zweiten Konden- satorplatte (2), die in einer Kammer angeordnet sind oder Teile einer Kammer (4) bilden, wobei die Kammer (4) mit einem gasförmigen Medium gefüllt ist, und wobei - die erste Kondensatorplatte (1) auf ihrer der zweiten Kondensatorplatte (2) zugewandten Seite ein aktives Messfeld (5) aufweist, und - die zweite Kondensatorplatte (2) auf ihrer der ersten Kondensatorplatte (1) zugewandten Seite eine Elektronen emittierende Röntgenabsorptionsschicht (6) aufweist.

    Abstract translation: 本发明涉及的X射线剂量测量设备与第一电容器板(1)和被布置在一个腔室(4)的腔室或部分的第二电容器板(2),其中所述腔室(4)填充有气体介质, 以及其中 - 在其第二电容器板中的第一电容器板(1)(2)侧朝向活性测量场(5),以及 - 所述第二电容器板(2)在它的第一电容器平板(1)面朝向电子发射X射线吸收层( 6)。

    X-RAY DOSIMETER
    9.
    发明申请
    X-RAY DOSIMETER 审中-公开
    射线剂量测量装置

    公开(公告)号:WO2007036460A3

    公开(公告)日:2008-01-10

    申请号:PCT/EP2006066500

    申请日:2006-09-19

    CPC classification number: G01T1/14 H01J47/04

    Abstract: The invention relates to an x-ray dosimeter comprising a first capacitor plate (1) and a second capacitor plate (2) which are arranged in a chamber or form parts of a chamber (4), said chamber (4) being filled with a gaseous medium. The first capacitor plate (1) comprises an active measuring field (5) on the side thereof facing the second capacitor plate (2), and the second capacitor plate (2) comprises an electron-emitting x-ray absorption layer (6) on the side thereof facing the first capacitor plate (1).

    Abstract translation: 本发明涉及的X射线剂量测量设备与第一电容器板(1)和被布置在一个腔室(4)的腔室或部分的第二电容器板(2),其中所述腔室(4)填充有气体介质, 以及其中 - 在其第二电容器板中的第一电容器板(1)(2)侧朝向活性测量场(5),以及 - 所述第二电容器板(2)在它的第一电容器平板(1)面朝向电子发射X射线吸收层( 6)。

    RADIATION DETECTOR, AN APPARATUS FOR USE IN PLANAR BEAM RADIOGRAPHY AND A METHOD FOR DETECTING IONIZING RADIATION
    10.
    发明申请
    RADIATION DETECTOR, AN APPARATUS FOR USE IN PLANAR BEAM RADIOGRAPHY AND A METHOD FOR DETECTING IONIZING RADIATION 审中-公开
    辐射探测器,用于平面光束辐射的装置和用于检测离子辐射的方法

    公开(公告)号:WO00062097A1

    公开(公告)日:2000-10-19

    申请号:PCT/SE2000/000628

    申请日:2000-03-30

    CPC classification number: H01J47/04

    Abstract: A detector (64) for detection of ionizing radiation, an apparatus for use in planar beam radiography, comprising such a detector, and a method for detecting ionizing radiation. The detector comprises: a chamber filled with an ionizable medium; first and second electrode arrangements (2, 1, 18, 19) provided in said chamber with a space between them, said space including a conversion volume (13); means for electron avalanche amplification (17) arranged in said chamber; and, at least one arrangement of read-out elements (15) for detection of electron avalanches. A radiation entrance is provided so that radiation enters the conversion volume between the first and second electrode arrangements. In order to achieve well-defined avalanches the means for electron avalanche amplification includes a plurality of avalanche regions.

    Abstract translation: 用于检测电离辐射的检测器(64),用于平面射线照相术的平面射线照相设备的装置,包括这种检测器,以及用于检测电离辐射的方法。 检测器包括:填充有可离子化介质的室; 设置在所述腔室中的第一和第二电极布置(2,1,18,19)之间具有空间,所述空间包括转换体积(13); 用于设置在所述室中的电子雪崩放大装置(17)的装置; 以及用于检测电子雪崩的读出元件(15)的至少一种布置。 提供辐射入口,使得辐射进入第一和第二电极装置之间的转换体积。 为了实现明确定义的雪崩,用于电子雪崩放大的装置包括多个雪崩区域。

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