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    • 2. 发明授权
    • 방사선 검출 및 양전자 방사 엑스선 단층촬영 장치 및 방법
    • 방사선검출및양전자방사엑스선단층촬영장치및방
    • KR100875858B1
    • 2008-12-24
    • KR1020037006597
    • 2001-11-28
    • 엑스카운터 에이비
    • 프랭크톰페스코브,블라디미르
    • G01N23/00
    • G01T1/205G01T1/185
    • A radiation detector including a chamber capable of being filled with an ionizable and scintillating substance, and a radiation entrance arranged such that radiation can enter said chamber partly for ionizing said ionizable and scintillating substance, partly for being converted into light therein, is disclosed. The detector further includes a light detector for detection of said light, and an electron avalanche detector for avalanche amplification and detection of electrons released as a result of the ionization. Further, there are provided means for correlating detected light and detected electrons, which are derivable from a single radiation photon; and means for producing a signal from the correlated detected light and detected electrons. The detector is particularly suitable for positron emission tomography (PET).
    • 本发明公开了一种辐射检测器,其包括能够填充可电离和闪烁物质的腔室和辐射入口,辐射入口布置成使得辐射可以部分地进入所述腔室用于电离所述可电离和闪烁物质,部分用于在其中转换为光。 检测器还包括用于检测所述光的光检测器,以及用于雪崩放大和检测由于电离而释放的电子的电子雪崩检测器。 此外,提供了用于将检测到的光和检测到的电子相关联的装置,其可以从单个辐射光子导出; 以及用于从相关的检测光和检测到的电子产生信号的装置。 该检测器特别适用于正电子发射断层扫描(PET)。
    • 4. 发明公开
    • 검사 방법 및 장치
    • 检查方法和装置
    • KR1020060130048A
    • 2006-12-18
    • KR1020067010413
    • 2004-11-24
    • 엑스카운터 에이비
    • 프랭크톰
    • A61B6/00A61B6/02A61B8/08
    • A61B6/483A61B6/481A61B6/502A61B6/5247A61B8/0825A61B8/4416
    • A method for examination of a subject comprises the steps of: administering (32) a contrast-enhancing agent into a subject (7, 42) to be examined, the contrast-enhancing agent introducing density variations in the subject; directing (33) ionizing radiation (3) towards the subject; and detecting (34) ionizing radiation spatially resolved as transmitted through the subject, while Compton scattered radiation (3a, 3c) in the subject is essentially prevented from being detected. The ionizing radiation directed towards the subject is provided within a spectral range so that more photons of the ionizing radiation are Compton scattered than absorbed through the photoelectric effect in the subject to thereby detect the density variations introduced by the contrast-enhancing agent in the subject spatially resolved.
    • 一种用于检查受试者的方法包括以下步骤:向对象(7,42)施用(32)对比增强剂,所述对象增强剂引入受试者的密度变化; 将(33)电离辐射(3)导向所述受试者; 并检测(34)电离辐射,通过被摄体传播通过空间分辨,同时基本上防止了被检者的康普顿散射辐射(3a,3c)。 朝向受试者的电离辐射被提供在光谱范围内,使得电离辐射的更多光子是康普顿散射的,而不是通过受试者的光电效应所吸收,从而在空间上检测对象增强剂在对象空间中引入的密度变化 解决。
    • 8. 发明公开
    • 스캐닝에 근거를 둔 전리 방사선 검출
    • 基于扫描的离子辐射检测
    • KR1020060021817A
    • 2006-03-08
    • KR1020057012387
    • 2004-03-02
    • 엑스카운터 에이비
    • 율버그크리스터프랭크톰
    • G01N23/02
    • G21K5/10A61B6/0414A61B6/06A61B6/4071A61B6/4078A61B6/4208A61B6/502G01N23/04
    • A scanning-based radiation detector apparatus for recording an image of an object comprises a 1D detector unit (41) exposed to a fan-shaped ionizing radiation beam, after having interacted with the object; a device (87-89, 91) for moving the 1D detector unit (41) and the fan-shaped beam relative the object while repeatedly detecting to thereby create a 2D image of the object; and a control device for controlling the repeated detections. The one- dimensional detector unit (41) has an ionizing radiation sensitive thickness (dt), which is larger than the thickness of the fan-shaped beam when impinging on the one-dimensional detector unit. To obtain a short exposure time of each 1D image, but still a high spatial resolution in the 2D image, a 1D image of the fan-shaped beam is recorded every n' th length unit of the movement, where n is not lower than essentially half the thickness of the fan-shaped beam in that length unit, but lower than the ionizing radiation sensitive thickness (dt) of the 1D detector unit (41) in that length unit.
    • 用于记录物体的图像的基于扫描的放射线检测器装置包括在与物体相互作用后暴露于扇形电离辐射束的1D检测器单元(41) 用于在重复检测的同时相对于物体移动1D检测器单元(41)和扇形束的装置(87-89,91),从而产生物体的2D图像; 以及用于控制重复检测的控制装置。 一维检测器单元(41)具有电离辐射敏感厚度(dt),其大于当入射到一维检测器单元时扇形光束的厚度。 为了获得每个1D图像的短曝光时间,但是在2D图像中仍然具有高空间分辨率,则每运动的第n个长度单位记录扇形波束的1D图像,其中n不小于基本上 该长度单位中的扇形光束的厚度的一半,但低于该长度单位中的1D检测器单元(41)的电离辐射敏感厚度(dt)。
    • 9. 发明公开
    • 전리 방사선의 적의 에너지-분해 검출
    • 전리방ices선의적의에너지 - 분해검출
    • KR1020030038750A
    • 2003-05-16
    • KR1020037003959
    • 2001-09-20
    • 엑스카운터 에이비
    • 프랭크톰
    • G01T1/185
    • G01T1/185
    • 전리 방사선 검출장치(9)는 제 1 전압(U1)이 사이에서 인가 가능하게 되어 있는 제 1 캐소드(17)와 제 1 애노드(19); 제 1 캐소드와 제1 애노드 사이에서 적어도 부분적으로 배열된 전리성 가스; 전리성 방사선(1)이 진입되어 전리성 가스를 전리시키게 배열된 방사선 입구(33); 및 판독부(19, 23)를 포함한다.
      상기 검출기는 제 2 전압(U2)이 사이에서 인가 가능하게 되어 있는 제 2 캐소드(21)와 제 2 애노드(23); 및 고체상태 전리성 재료로서 제 2 캐소드와 제 2 애노드 사이에 배열되어 전리성 가스 내로 진입된 방사선 일부가 가스를 통해 전파하여 상기 고체상태 재료로 진입하여 그것을 전리시킬 수 있도록 하는 고체상태 전리성 재료; 를 포함하되, 판독부는 제 1 애노드를 향하여 유동된 전자들을 검출하는 것과는 별개로, 제 2 애노드 및/또는 캐소드를 향하여 유동된 전자들 및/또는 정공들을 검출하게 배열된 것을 특징으로 한다.
    • 用于检测电离辐射的检测器包括第一阴极和第一阳极,在第一阴极和第一阳极之间可施加第一电压; 可电离气体,其至少部分地布置在第一阴极和第一阳极之间; 辐射入口,其布置成使得电离辐射可以进入并电离可电离气体; 和一个读出安排。 该检测器还包括第二阴极和第二阳极,在第二阴极和第二阳极之间可施加第二电压; 以及布置在所述第二阴极和所述第二阳极之间的固态可电离材料,使得进入所述可电离气体中的所述辐射的一部分可以传播通过所述气体,进入所述固态材料并使其离子化; 其中所述读出装置被布置用于分别检测朝向所述第一阳极漂移的所述电子的检测,所述电子和/或空穴分别向所述第二阳极和/或阴极漂移。
    • 10. 发明公开
    • 이미지 데이터를 획득하는 장치 및 방법
    • 用于获取成像数据的布置和方法
    • KR1020060130663A
    • 2006-12-19
    • KR1020067019296
    • 2005-03-17
    • 엑스카운터 에이비
    • 프랭크톰
    • A61B6/03G01N23/00G01T1/00
    • A61B6/032A61B6/025A61B6/42A61B6/504G01N2223/419G01N2223/612
    • A scanning-based arrangement for obtaining imaging data of an object (5) at high repetition rate comprises a support structure (11); scanning-based apparatuses (10) fixedly arranged on the support structure and each including (i) a radiation source (1), and (ii) a radiation detector (6) comprising a stack of line detectors (6a), each being directed towards the radiation source to allow a ray bundle (b1,.., bn,.., bN) of radiation to enter the line detector; an object table (13) arranged in the radiation path of one of the scanning-based apparatuses; and a device (14) provided for rotating the support structure relative to the object table so that the object table will successively be arranged in the radiation path of each of the scanning-based apparatuses, during which rotation each of the line detectors in each of the radiation detectors is adapted to record a plurality of line images of radiation as transmitted through the object.
    • 用于以高重复率获得对象(5)的成像数据的基于扫描的布置包括支撑结构(11); 固定地布置在支撑结构上的基于扫描的装置(10),每个包括(i)辐射源(1)和(ii)包括线检测器(6a)的堆叠的辐射检测器(6) 所述辐射源允许辐射束(b1,...,bn,...,bN)进入所述线路检测器; 布置在所述基于扫描的装置之一的辐射路径中的物体表(13) 以及设置用于使所述支撑结构相对于所述物体台旋转的装置(14),使得所述物体台将依次布置在每个所述基于扫描的装置的所述辐射路径中,在所述辐射路径期间,每个所述线检测器 辐射检测器适于记录透过物体的多个辐射线图像。