公开(公告)号：US06753532B2

公开(公告)日：2004-06-22

申请号：US10091117

申请日：2002-03-06

Applicant: Manfred Pfleger

Inventor： Manfred Pfleger

IPC: G01J142

CPC classification number: G01T1/178 ,  G01F23/288 ,  G01T7/00

Abstract: A method of detecting and suppressing extraneous radiation influences in radiometric measurements utilizes, in addition to the measurement channel that extends at least essentially over the entire usable pulse amplitude spectrum, at least one substitute channel that encompasses only a fractional range of the usable pulse amplitude spectrum. The measurement channel (MK) and substitute channel (EK) are calibrated in terms of the same variables, such as fill level or volume. A comparison between the measurement values, defined by the respective pulse rates of the measurement channel and substitute channel, is brought about in such a way that the value of the linkage varies significantly if extraneous radiation occurs.

Abstract translation: 在辐射测量中检测和抑制外来辐射影响的方法除了至少基本上在整个可用脉冲振幅谱上延伸的测量通道之外，还使用至少一个仅包含可用脉冲幅度谱的分数范围的替代通道 。 测量通道（MK）和替代通道（EK）根据相同的变量（如填充水平或体积）进行校准。 由测量通道和替代通道的相应脉冲速率定义的测量值之间的比较以这样一种方式使得如果发生外来辐射，连接的值会显着变化。

公开(公告)号：US4704531A

公开(公告)日：1987-11-03

申请号：US639153

申请日：1984-08-09

Applicant: Fritz Berthold ,  Manfred Pfleger

Inventor： Fritz Berthold ,  Manfred Pfleger

IPC: G01T1/204 ,  G01T7/02 ,  G01T1/20

CPC classification number: G01T1/204 ,  G01T7/02

Abstract: A method for measuring the radioactivity in eluates from liquid chromatography columns in which a portion of the eluate stream is split off and mixed with a scintillation fluid in a timed sequence wherein the volume of eluate and the volume of scintillation cocktail are quantitatively and reproduceably controlled. An apparatus for the practice of this method comprising a two-position valve on the affluent stream, a two-position valve on a pumped closed loop of scintillation cocktail a means for simultaneously setting the position of each valve and a mixing chamber discharging to a scintillation counter is also described. By the practice of this method, it is possible to determine the radioactivity of the eluate as well as to preserve a sample of the eluate for further analysis.

Abstract translation: 一种用于测量液相色谱柱洗脱液中放射活性的方法，其中洗脱液流的一部分被分离并按闪烁液与定时序列混合，其中定量和可再现地控制洗脱液的体积和闪烁混合物的体积。 一种用于实施该方法的装置，包括在富流体上的两位置阀，在泵送的闭合回路上的两位置阀，用于同时设定每个阀的位置和将闪烁的混合室排出 计数器也被描述。 通过该方法的实践，可以确定洗脱液的放射性以及保留洗脱液的样品用于进一步分析。

公开(公告)号：US5367168A

公开(公告)日：1994-11-22

申请号：US92804

申请日：1993-07-19

Applicant: Fritz Berthold ,  Manfred Pfleger

Inventor： Fritz Berthold ,  Manfred Pfleger

IPC: G01T1/208 ,  G01D21/00

CPC classification number: G01T1/208

Abstract: A method for discrimination and simultaneous or separate measurement of single or multiple electronic events in an opto-electronic detector, such as a photo-multiplier, wherein information for the discrimination of these events is obtained from the signal progression occurring at the detector output within a predeterminable time window. According to this method, a characteristic parameter (T.sub.M ; t.sub.b -t.sub.a) is obtained for the temporal "center of gravity" of the progression of the signal itself or its integral over the time window (T.sub.F), the value of which is compared with a reference value (T.sub.S ; C.sub.1) which this parameter assumes during a single photo-electron event.

Abstract translation: 一种用于鉴别和同时或单独测量光电检测器（例如光电倍增器）中的单个或多个电子事件的方法，其中用于鉴别这些事件的信息是从在 可预定的时间窗口。 根据该方法，对于时间窗口（TF）的信号本身的进展或其积分的时间“重心”获得特征参数（TM; tb-ta），其值与 在单次光电子事件期间该参数假设的参考值（TS; C1）。

公开(公告)号：US5340989A

公开(公告)日：1994-08-23

申请号：US982690

申请日：1992-11-30

Applicant: Fritz Berthold ,  Manfred Pfleger

Inventor： Fritz Berthold ,  Manfred Pfleger

IPC: G01T1/18 ,  H01J47/02 ,  G01T1/185

CPC classification number: G01T1/18 ,  H01J47/02

Abstract: A counting tube for detecting radioactive radiation exclusively uses cathode pads for signal detection, which are disposed electrically insulated on the interior of an inner wall of the counting tube housing opposite the sample. A discrete electronic evaluation element is preferably allocated to each cathode element, which makes possible parallel evaluation of the counting tube signal. The cathode pads are in particular laminated in the form of a metal-coated conductive surface on a support plate made of an insulating material. The field of application of such counting tubes with the exclusive use of cathode pads is in particular in connection with multiple counting tubes where the partial areas of a total area to be measured are intended to be individually detected and evaluated.

Abstract translation: 用于检测放射性辐射的计数器专门使用用于信号检测的阴极焊盘，其在与样品相对的计数管壳体的内壁的内部电绝缘。 优选地将分立的电子评估元件分配给每个阴极元件，这使得可以并行评估计数管信号。 阴极焊盘特别是在由绝缘材料制成的支撑板上以金属涂覆的导电表面的形式层压。 专门使用阴极焊盘的这种计数管的应用领域特别地与多个计数管连接，其中要测量的总区域的部分区域旨在被单独检测和评估。