CN101013094A - 一种用于辐射成像的双阵列固体探测器模块结构 - Google Patents
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Abstract
一种用于辐射成像的双阵列固体探测器模块结构,涉及辐射成像的固体探测器装置。它包括壳体、底板及由多个固体探测器组成的固体探测器阵列。壳体呈型,其底端与底板固定。壳体内置有支架将线路板固定,壳体的前端面置有与其连接的各插座,壳体上端和后端面配装有上盖板和后盖。壳体的下方、底板上放置固体探测器阵列。固体探测器阵列前端置有准直器。其特点是,固体探测器阵列是由上下双排固体探测器阵列组成,上下排固体探测器阵列分别与准直器的上端面和下端面及与底板固定的前后支柱上支撑的PCB上下支板固定。本发明与现有技术相比,不仅减少了沿着束流面和垂直束流面的各种散射,提高了抗散射性能和图像的清晰度,而且可使检测速度大大提高。
Description
技术领域
本发明属于辐射检测技术领域,涉及用于辐射成像的固体探测器模块结构。
背景技术
现有技术中,中国专利200420009317.3公开了一种用于辐射成像的固体探测器模块结构,虽然具备了体积小,组装、调试维修方便,前端电路的射线辐照小的优点。但是还存在检查系统的检查速度有待于提高的问题。检查系统为了提高检查速度所使用的方法是,对于单阵列探测器,一种是加大探测器阵列尺寸,另一种是提高电子加速器出束的频率来实现快速检查。但在实际应用中,加速器频率的提高是有限的,而且任意地加大探测器阵列尺寸,也会降低检查系统的空间分辨率,影响成像的清晰度。
发明内容
为了解决上述现有技术中存在问题,本发明的目的是提供一种用于辐射成像的双阵列固体探测器模块,它是在200420009317.3号专利技术基础上的进一步改进。在不降低现有检查系统空间分辨的前提下,大大提高检查速度,而且增强抵抗沿着束流面上射线散射的能力并且尺寸完全可以与单阵列固体探测器兼容,方便提升辐射成像系统的检查速度。
为了达到上述的发明目的,本发明的技术方案以如下方式实现:
一种用于辐射成像的双阵列固体探测器模块结构,它包括壳体、底板及由多个固体探测器组成的固体探测器阵列。壳体呈
型,其底端与底板固定。壳体的下方、底板上放置固体探测器阵列,固体探测器阵列的前端边沿置有起准直和抗散射作用的准直器。壳体内置有支架将线路板固定。壳体的上前端面置有与线路板连接的各插座。壳体的上端配装有与其形状匹配的上盖板。其结构特点是,所述固体探测器阵列是由上下双排固体探测器阵列组成,上排固体探测器阵列固定在与准直器上端面和后支柱上端连接的PCB上支板的下面,下排固体探测器阵列固定在与准直器下端面和与前支柱、后支柱下端支撑连接的PCB下支板的上面。前支柱、后支柱与底板固定,后支柱位于壳体的下前端面。
按照上述的技术方案,所述准直器是由上槽板、多片隔板、下槽板组成。各片隔板嵌装于下槽板和上槽板之间,由各片隔板形成间隔的数量与上下双排固定探测器的数量一致。
按照上述的技术方案,所述上盖板呈型,由紧固螺钉将其与壳体的上端部封闭。
按照上述的技术方案,所述壳体的后端面置有便于壳内零件装卸的后盖。
按照上述的技术方案,所述壳体内壁与支架固定处之间置有起屏蔽作用的铅块。
本发明由于采用了上述结构,在使用中可以十分便于壳体内线路板的安装和拆卸,便于探测器板与前端电路板的连接,底板与外壳的固定。重要的是,采用双阵列固体探测器,可以在不降低空间分辨率的基础上,大大提高辐射成像检查系统的检查速度。另外,由于探测器前端边沿设有准直器,对于不同能量的射线可选用不同长度材料的准直器,不但减小了光电二极管的辐照损伤,而且减少了沿着束流面和垂直于束流面的各种散射。又由于前端电路板未安装在射线的束流面上,因此也减小了射线前端电路的辐照,提高了探测器模块的使用寿命。本发明与现有技术相比,不仅大幅度提高了检查速度,减少了沿着束流面和垂直于束流面的各种散射,提高了探测器模块的抗散射性能,有利于提高图像的清晰度,而且对于高能X射线和未设后准直器的辐射成像检查系统的应用十分有利。
附图说明
图1为本发明的结构剖面示意图;
图2为图1的左侧视图;
图3为本发明准直器的结构及双阵列探测器的横向布置图;
图4为本发明使用状态图。
下面结合附图及具体实施方式对本发明做进一步说明。
具体实施方式
其底端与底板1固定。壳体3内置有降低环境剂量率的铅块4,铅块4上置有支架5将线路板6固定。壳体3的上前端面置有与线路板6连接的各插座7以及开关、指示灯。壳体3的上端配装有与其形状匹配、便于壳内零件装卸的上盖板8。壳体3的后端面置有便于装卸壳内零件的后盖9。上盖板8做成型扣紧在壳体3的上端部。各插座7以及开关、指示灯用来完成电源、信号与固体探测器模块之间的互连和开关、状态显示。壳体3的下方、底板1上,上下布置双排固体探测器阵列。双排固体探测器阵列的前端边沿置有起准直和抗散射作用的准直器2。准直器2是由上槽板21、下槽板23和多片重金属隔片22组成。各隔片22嵌装于上槽板21和下槽板23之间的槽中并用强力胶粘接。由各隔片22形成的间隔数量与上下双排固体探测器阵列的固体探测器的数量一致。上排固体探测器阵列13固定在与准直器2上端面和后支柱15上端连接的PCB上支板14的下面。下排固体探测器阵列11固定在与准直器2下端面和与前支柱10、后支柱15下端支撑连接的PCB下支板12的上面。前支柱10、后支柱15与底板1固定,后支柱15位于壳体3的下前端面。
参看图4,使用本发明时,加速器31发出X射线,通过被测的集装箱/车辆32,被双排固体探测器阵列上的多个固体探测器按扇形或者L形以一定角度排列在集装箱检查系统的探测器的支架上构成的阵列探测器33接收。阵列探测器的安装要求入射射线与探测器的夹角接近0度,即可得到满意的清晰图像。
Claims (5)
1、一种用于辐射成像的双阵列固体探测器模块结构,它包括壳体(3)、底板(1)及由多个固体探测器组成的固体探测器阵列,壳体(3)呈型,其底端与底板(1)固定,壳体(3)的下方、底板(1)上放置固体探测器阵列,固体探测器阵列的前端边沿置有起准直和抗散射作用的准直器(2),壳体(3)内置有支架(5)将线路板(6)固定,壳体(3)的上前端面置有与线路板(6)连接的各插座(7),壳体(3)的上端配装有与其形状匹配的上盖板(8),其特征在于,所述固体探测器阵列是由上下双排固体探测器阵列组成,上排固定探测器阵列(13)固定在与准直器(2)上端面和后支柱(15)上端连接的PCB上支板(14)的下面,下排固体探测器阵列(11)固定在与准直器(2)下端面和与前支柱(10)、后支柱(15)下端支撑连接的PCB下支板(12)的上面,前支柱(10)、后支柱(15)与底板(1)固定,后支柱(15)位于壳体(3)的下前端面。
2、按照权利要求1所述的用于辐射成像的双阵列固体探测器模块结构,其特征在于:所述准直器(2)是由上槽板(21)、多片隔板(22)、下槽板(23)组成,各片隔板(22)嵌装于下槽板(23)和上槽板(21)之间,由各片隔板(22)形成间隔的数量与上下双排固定探测器的数量一致。
3、按照权利要求1或2所述的用于辐射成像的双阵列固体探测器模块结构,其特征在于:所述上盖板(8)呈型,由紧固螺钉将其与壳体(3)的上端部封闭。
4、按照权利要求3所述的用于辐射成像的双阵列固体探测器模块结构,其特征在于:所述壳体(3)的后端面置有便于壳内零件装卸的后盖(9)。
5、按照权利要求4所述的用于辐射成像的双阵列固体探测器模块结构,其特征在于:所述壳体(3)内壁与支架(5)固定处之间置有起屏蔽作用的铅块(4)。
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JP4476471B2 (ja) * | 2000-11-27 | 2010-06-09 | 株式会社東芝 | X線コンピュータ断層撮影装置 |
CN1749736A (zh) * | 2004-09-14 | 2006-03-22 | 清华大学 | 一种用于辐射成像的固体探测器模块结构 |
CN2736763Y (zh) | 2004-09-14 | 2005-10-26 | 清华大学 | 用于辐射成像的固体探测器模块结构 |
-
2005
- 2005-11-03 CN CN200510086766.7A patent/CN101013094B/zh active Active
-
2006
- 2006-10-24 DE DE102006050094.6A patent/DE102006050094B4/de not_active Expired - Fee Related
- 2006-10-26 FR FR0654575A patent/FR2892858A1/fr active Pending
- 2006-10-31 GB GB0621624A patent/GB2437777B/en not_active Expired - Fee Related
- 2006-11-03 US US11/593,179 patent/US7429738B2/en active Active
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2008
- 2008-01-31 HK HK08101218.6A patent/HK1110650A1/xx not_active IP Right Cessation
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102590852A (zh) * | 2011-12-02 | 2012-07-18 | 云南电力试验研究院(集团)有限公司电力研究院 | 一种数字x射线成像板保护装置 |
CN102590852B (zh) * | 2011-12-02 | 2015-01-21 | 云南电力试验研究院(集团)有限公司电力研究院 | 一种数字x射线成像板保护装置 |
CN105229749A (zh) * | 2013-03-22 | 2016-01-06 | 德国癌症研究中心 | 用于放射治疗的轮廓准直仪 |
US9905323B2 (en) | 2013-03-22 | 2018-02-27 | Deutsches Krebsforschungszentrum | Contour collimator for radiotherapy |
US10217539B2 (en) | 2013-03-22 | 2019-02-26 | Deutsches Krebsforschungszentrum | Contour collimator for radiotherapy |
CN108445023A (zh) * | 2016-11-09 | 2018-08-24 | 上海伊斯曼电气股份有限公司 | 一种用于x射线异物检测仪的探测盒 |
CN108445023B (zh) * | 2016-11-09 | 2020-08-14 | 上海伊斯曼电气股份有限公司 | 一种用于x射线异物检测仪的探测盒 |
Also Published As
Publication number | Publication date |
---|---|
FR2892858A1 (fr) | 2007-05-04 |
CN101013094B (zh) | 2010-12-29 |
HK1110650A1 (en) | 2008-07-18 |
GB0621624D0 (en) | 2006-12-06 |
GB2437777B (en) | 2010-05-26 |
GB2437777A (en) | 2007-11-07 |
DE102006050094B4 (de) | 2016-01-28 |
US7429738B2 (en) | 2008-09-30 |
US20070096030A1 (en) | 2007-05-03 |
DE102006050094A1 (de) | 2007-05-10 |
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