公开(公告)号：US4956855A

公开(公告)日：1990-09-11

申请号：US252952

申请日：1988-10-03

Applicant: Geert Brouwer

Inventor： Geert Brouwer

IPC: G01T1/24 ,  G01N23/00 ,  G01N23/207 ,  H01L31/09

CPC classification number: G01N23/2076

Abstract: An X-ray line detector where signals from detector elements are selectively combined in dependence on the deflection angle of the X-ray beam from the X-ray source and an object carrier.

公开(公告)号：US4684251A

公开(公告)日：1987-08-04

申请号：US839474

申请日：1986-03-14

Applicant: Geert Brouwer ,  Sipke Wadman

Inventor： Geert Brouwer ,  Sipke Wadman

IPC: G01N21/72 ,  G01N1/00 ,  G01N21/71

CPC classification number: G01N21/714 ,  G01N1/22

Abstract: A spectrometer includign a flame atomiser (7) is provided with a sample diluter comprising a mixing vessel (1) having a diluent supply channel (20) and a sample supply tube (10). The mixing vessel (1) has a converging lower portion (2) to which a outlet tube (5) is connected, the outlet tube feeding a mixture of sample and diluent to a nebuliser (47). The sample supply tube (10) is aligned with and spaced from the outlet tube (5). Sample liquid from the sample supply tube (10) passes into the outlet tube (5) as a central core (29) entrained in a sheath of diluent. The sample and diluent flow through the tube (5) with a laminar flow due to the profile of the mixing vessel (1) thus preventing the sample liquid from coming into contact with the wall of the outlet tube (5). Consequently memory effects are reduced.The rate of flow of sample may be controlled automatically by means of a processing and control circuit (40) which has an output (B) which controls the speed of a stepping motor (61) which is arranged to advance a plunger (13) in a syringe (15) containing the sample liquid. The processing and control circuit calculates the absorption or emission of the sample in the atomiser (7) and controls the stepping motor (61) to bring the calculated value within the most sensitive range of the instrument.

Abstract translation: 包括火焰雾化器（7）的光谱仪设置有样品稀释器，其包括具有稀释剂供应通道（20）和样品供应管（10）的混合容器（1）。 混合容器（1）具有会聚下部（2），出口管（5）连接到该下部，出口管将样品和稀释剂的混合物供给雾化器（47）。 样品供应管（10）与出口管（5）对齐并与出口管（5）间隔开。 来自样品供应管（10）的样品液体作为夹带在稀释剂护套中的中心芯（29）进入出口管（5）。 样品和稀释剂由于混合容器（1）的轮廓而以层流流过管（5），从而防止样品液体与出口管（5）的壁接触。 因此，记忆效应降低。 可以通过具有控制步进电动机（61）的速度的输出（B）的处理和控制电路（40）自动控制样品的流量，所述输出（B）被布置成将柱塞（13）推进到 包含样品液体的注射器（15）。 处理和控制电路计算样品在雾化器（7）中的吸收或发射，并控制步进电机（61）使计算值在仪器最敏感的范围内。

公开(公告)号：US3935493A

公开(公告)日：1976-01-27

申请号：US481243

申请日：1974-06-20

Applicant: Geert Brouwer

Inventor： Geert Brouwer

IPC: G01T1/29 ,  H01J31/26 ,  H01J31/48 ,  H01J31/50 ,  H01J39/06

CPC classification number: H01J31/265 ,  H01J31/48

Abstract: In a radiation detector two photocathodes are provided one on either side of a channel amplifier plate. One of these photocathodes is provided, so as to be electrically floating, on a layer of a dielectric on the opposite surface of which an electrode is provided, the lateral conductivity of this photocathode being low either owing to its subdivision into electrically isolated areas or owing to the choice of material.The potential distribution in the detector can be reversed from a write-in situation to a read-out situation so that the channel plate can be used twice and the amplification is subdivided, enabling it to be increased to a higher level.

Abstract translation: 在辐射检测器中，在通道放大器板的任一侧上提供两个光电阴极。 提供这些光电阴极中的一个，以便电浮置在其相对表面上设置电极的电介质层上，该光电阴极的侧向电导率由于其分为电隔离区域或低于 到材料的选择。

公开(公告)号：US4800580A

公开(公告)日：1989-01-24

申请号：US921861

申请日：1986-10-20

Applicant: Eliberthus Houtman ,  Geert Brouwer

Inventor： Eliberthus Houtman ,  Geert Brouwer

IPC: G01N23/207 ,  G01N23/22 ,  G01N23/20

CPC classification number: G01N23/207

Abstract: In an X-ray analysis apparatus provided with a detector comprising photodiode-detection elements, it is possible to eliminate the dark current and the background current from the measurement signals due to the fact that elements in the signal reading device can be combined. Due to the fact that also during the measurement at a stationary peak beside the signal amplitude also signal ratios can be obtained from combinations of detector elements, the correct position and amplitude of the peaks to be measured can be determined. The detector can also be provided with mutually separated detector elements which have such a surface area and configuration that the dark surrent can already be compensated thereby.

Abstract translation: 在设置有包含光电二极管检测元件的检测器的X射线分析装置中，由于可以组合信号读取装置中的元件的事实，可以从测量信号中消除暗电流和背景电流。 由于在信号幅度旁边的固定峰值的测量期间也可以从检测器元件的组合获得信号比，因此可以确定要测量的峰的正确位置和振幅。 检测器还可以设置有相互分离的检测器元件，该检测器元件具有这样的表面积和构型，从而可以补偿暗电流。

公开(公告)号：US4726047A

公开(公告)日：1988-02-16

申请号：US573249

申请日：1984-01-23

Applicant: Geert Brouwer ,  Sipke Wadman

Inventor： Geert Brouwer ,  Sipke Wadman

IPC: G01N23/20 ,  G01N23/207

CPC classification number: G01N23/207 ,  G01N23/20008 ,  G01N2223/056 ,  G01N2223/1016 ,  G01N2223/315 ,  G01N2223/316 ,  G01N2223/606 ,  G01N2223/607

Abstract: In an X-ray analysis apparatus, a specimen to be examined is mounted on the circumference of a focusing cylinder, which can be rolled along an auxiliary cylinder arranged concentrically around the beam focus of an X-ray beam. Independently of the movement mechanism used, a fixed part of the specimen then remains continuously in the beam path. Invariably the same surface area of the specimen is irradiated by the X-ray beam. The movement mechanism may have added to it a device by means of which during the movement of the specimen and the detector the detector is continuously optimally directed to the specimen. The specimen holder may have added to it a device for rotating and/or tilting a specimen included therein.

Abstract translation: 在X射线分析装置中，将被检查样本安装在聚焦圆筒的圆周上，该聚焦圆筒可以沿着同轴地布置在X射线束的束焦点上的辅助圆筒滚动。 独立于所使用的移动机构，样本的固定部分然后连续地保持在光束路径中。 样品的表面面积一律用X射线照射。 移动机构可以添加一个装置，通过该装置在样本和检测器的移动期间，检测器连续地最佳地指向样本。 样品架可能已经添加了用于旋转和/或倾斜包括在其中的样本的装置。