JPS6421383U

JPS6421383U -

Info

Publication number: JPS6421383U
Application number: JP11572587U
Authority: JP
Priority date: 1987-07-27
Filing date: 1987-07-27
Publication date: 1989-02-02

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による放射線検出
器のチエツク装置の概略構成を示す側面図、第２
図Ａ，Ｂは第１図の動作説明のための側面図、第
３図はこの考案の他の実施例による放射線検出器
のチエツク装置のしやへい板を示す側面図、第４
図はこの考案のさらに他の実施例による放射線検
出器のチエツク装置のしやへい板を示す側面図、
第５図は従来の放射線検出器のチエツク装置の概
略構成を示す側面図、第６図は第５図の動作説明
のための側面図である。図において、１は放射線検出器、２は放射線源
、３は放射線、６はしやへい板、６ａは第１の材
料、６ｂは第２の材料、７は駆動手段、１０は調
整手段である。なお、図中同一符号は同一、又は
相当部分を示す。 FIG. 1 is a side view showing a schematic configuration of a radiation detector check device according to an embodiment of the invention, and FIG.
Figures A and B are side views for explaining the operation of Figure 1; Figure 3 is a side view showing a shield plate of a radiation detector check device according to another embodiment of the invention;
The figure is a side view showing a shield plate of a check device for a radiation detector according to yet another embodiment of the invention;
FIG. 5 is a side view showing a schematic configuration of a conventional radiation detector check device, and FIG. 6 is a side view for explaining the operation of FIG. In the figure, 1 is a radiation detector, 2 is a radiation source, 3 is radiation, 6 is a shield plate, 6a is a first material, 6b is a second material, 7 is a driving means, and 10 is an adjustment means. . Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of Claim for Utility Model Registration] (1) A radiation source that irradiates check radiation toward a radiation detector, a first material with high radiation resistance, and a thickness that changes with respect to the irradiation direction of the radiation. A shielding plate having at least a two-layer structure with a second material having low radiation resistance, a driving means for moving the shielding plate into or out between the radiation source and the radiation detector, and driving the shielding plate. A checking device for a radiation detector, comprising an adjustment means for adjusting the entry position of the shield plate by the means. (2) The radiation detector checking device according to claim 1, wherein the first material is metal. (3) The radiation detector checking device according to claim 1 or 2 of the utility model registration claim, wherein the first material has a thickness that changes discontinuously with respect to the radiation irradiation direction. . (4) The radiation detector checking device according to any one of claims 1 to 3, wherein the second material is plastic. (5) The radiation detector checking device according to any one of claims 1 to 4, wherein the adjusting means is a stopper movable by a screw.