公开(公告)号：CN106229250A

公开(公告)日：2016-12-14

申请号：CN201610656085.8

申请日：2016-08-12

Applicant: 安徽中杰信息科技有限公司

Inventor： 朱卫国 ,  陈彬 ,  夏亦平

IPC: H01J47/06

CPC classification number: H01J47/067

Abstract: 一种用于气体检测的电离装置，它涉及电离室技术领域；它包含电离室、紫外线灯；所述的紫外线灯设在电离室的一端；所述的电离室由外壳一、外壳二组成；电离室内设有电离腔一、电离腔二；电离腔一、电离腔二的末端设有填充物腔；填充物腔内设有轻质填充物；电离腔一、电离腔二通过隔板隔开；隔板上喷涂有阳极；电离室的末端分别设有阴极一、阴极二；它将电离室一分为二，在相同有效探测体积的前提下，使电极间距减小了1/2，这样既不增加传感器的总厚度，又有效地提高了检测的灵敏度，检测效率高，且具有结构简单、设置合理、制作成本低等优点。

公开(公告)号：JPS599844A

公开(公告)日：1984-01-19

申请号：JP11693282

申请日：1982-07-07

Applicant: Aloka Co Ltd

Inventor： SATOU HIROO ,  MAEKAWA HIROSHI ,  YOSHIZUMI MINORU

IPC: G01T1/18 ,  H01J47/06

CPC classification number: H01J47/067

Abstract: PURPOSE:To make the measurement of thickness in an optional radioactive substance contained in sample gases stably achievable for a long period of time in an accurate manner, by turning a vacant space between negative pole (cathode) cylinders for a center counter and a guard counter into a beta ray absorbing layer. CONSTITUTION:The maximum range of beta rays emitted by tritium contained in the air is about 6mm. or so in ambient air while the range of alpha rays emitted by a natural radioactive isotope contained in the air is about 5cm or so. Making full use of these data, an interval length 1 between a center counter negative pole cylinder 10b and a guard counter negative pole cylinder 12b is set down to 7mm., more than 6mm. in the maximum range of the beta rays whereby the beta rays emitted by tritium contained in the sampling air are all attenuated and absorbed inside a vacant space A surrounded by these negative pole cylinders 10b and 12b, thus incidence of the beta rays into the guard counter 12 is prevented. Therefore, inside the guard counter 12, a background portion for the alpha rays contained in the sampling air inside the center counter 10, in addition to cosmic rays, can be accurately measured.

Abstract translation: 目的：通过转动中心计数器的负极（阴极）气缸和防护计数器之间的空位，使样品气体中所含的任选放射性物质中的厚度测量能够长时间稳定地实现， 进入β射线吸收层。 构成：空气中含有的氚发射的β射线的最大范围约为6mm。 在空气中包含的天然放射性同位素发射的α射线的范围约为5cm左右。 充分利用这些数据，将中心反极性负极气缸10b和防护反极性负极气缸12b之间的间隔长度1设定为7mm，大于6mm。 在β射线的最大范围内，由采样空气中包含的氚发射的β射线全部被这些负极气缸10b和12b包围的空白空间A内的衰减和吸收，因此β射线入射到防护计数器 12被防止。 因此，在防护计数器12内部，除了宇宙射线之外，还可以精确地测量中央计数器10内的取样空气中所含的α射线的背景部分。