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Ray detector

一种辐射线、探测器的技术，应用在使用电辐射探测器进行测光、辐射的测量、辐射强度测量等方向，能够解决精确对准并控制困难、立体角度小、得不到高探测效率等问题

Inactive Publication Date: 2003-10-29
SII NANOTECHNOLOGY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in this case, the solid angle determined by the diameter of the collimator opening and the distance between the opening and the detection area is relatively small, resulting in the problem that high detection efficiency cannot be obtained
[0006] In addition, the alignment accuracy between the collimator opening and the detection area is also a factor that limits the detection efficiency
Detection efficiency has not been improved due to the difficulty of achieving precise alignment and controlling the distance between the collimator supported by an external support and the detection region

Method used

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no. 1 example

[0031] attached figure 1 is a schematic diagram of a radiation measuring system using a radiation detector according to a first embodiment of the present invention. A radiation detector is an energy / electricity converter which converts the energy of incident radiation into an electrical signal. in the attached figure 1 In the figure, a radiation detector is represented by a whole board 11, and the radiation detector 11 is connected with an external drive circuit 3 through a wire 4 to obtain the energy of the radiation 1 as an electric signal. The radiation detector 11 provides a detection zone 12 so that an electrical signal is obtained when radiation is irradiated to the zone. In order to prevent the radiation from radiating to the area outside the detection zone 12, a collimator 13 with an opening of D is provided, the collimator 13 is arranged on the plate 10, and a spacer 16 is clamped between the collimator 13 and the collimator 13. The distance between the radiation d...

no. 2 example

[0040] attached Figure 4 is a schematic diagram of a radiation measuring system using a radiation detector according to a third embodiment of the present invention. in the attached Figure 4In the diagram, a radiation detector 11 is represented by a whole board 11, and the radiation detector 11 is connected with an external driving circuit 3 through a wire 4 to obtain the energy of the radiation 1 as an electric signal. The radiation detector 11 provides a detection zone 12 so that an electrical signal is obtained when radiation is irradiated to the zone. Furthermore, in order to prevent radiation from radiating to areas outside the detection zone 12, a collimator 13 having an opening with a diameter D is provided, which is arranged directly on the plate.

[0041] Accompanying drawing 5 shows the manufacturing process of the radiation detector. Fig. 5A shows a collimator 13 and a panel 11 constituting a radiation detector, which are prepared separately. A cavity A is pre-...

no. 3 example

[0045] attached Image 6 is a schematic diagram of a radiation measuring system using a radiation detector according to a third embodiment of the present invention. in the attached Image 6 In the figure, a radiation detector is represented by a whole board 11, and the radiation detector 11 is connected with an external drive circuit 3 through a wire 4 to obtain the energy of the radiation 1 as an electric signal. The radiation detector 11 provides a detection zone 12 so that an electrical signal is obtained when radiation is irradiated to the zone. In addition, in order to prevent the radiation from radiating to the area outside the detection area 12, a collimator 13 with an opening with a diameter of D is provided, and the collimator 13 and the radiation detector 11 sandwich the spacer 16 to maintain the collimation. The distance between the collimator 13 and the detection area 12 is H. The collimator 13 has a double-layer structure and is composed of two materials 13A an...

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Abstract

The present invention provides a radiation detector capable of accurately irradiating a detection area and having a high detection performance. The collimator has an opening for transmitting radiation to radiate the detection area. The collimator is used as a shielding plate to prevent the radiation from radiating to a part of the area outside the detection area. device) on the same board. Such a configuration of the radiation detector can facilitate the alignment of the collimator opening and the detection area, and the detection performance can be improved by placing the detection area and the collimator opening close.

Description

technical field [0001] The invention relates to a radiation detector which expresses the radiation energy as an electrical signal, in particular to a very practical radiation detector with high energy resolution and high detection efficiency. Background technique [0002] A radiation detector is a converter that converts radiant energy such as visible light, infrared rays, ultraviolet rays, X-rays, and gamma rays into electrical signals. Radiometry requires high energy resolution and high detection efficiency. High energy resolution means that small changes in the signal can be obtained from radiation with a certain energy. A high detection efficiency means that there is a high probability that radiation is irradiated into the detection area of ​​the detector and acquired as a signal. [0003] Fig. 13 shows a radiation measurement system using a radiation detector in the related art. In FIG. 13 a radiation detector 21 is represented by a single plate. The radiation detec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T7/00G01J1/06G01J1/42G01T1/26H01L27/14H01L39/22
CPCG01J1/06G01J1/42G01T1/16
Inventor 师冈利光田中启一永田笃士茅根一夫石川达次
Owner SII NANOTECHNOLOGY INC