Nothing Special   »   [go: up one dir, main page]

CN2343971Y - 低能量x射线阵列探测器 - Google Patents

低能量x射线阵列探测器 Download PDF

Info

Publication number
CN2343971Y
CN2343971Y CN 98228460 CN98228460U CN2343971Y CN 2343971 Y CN2343971 Y CN 2343971Y CN 98228460 CN98228460 CN 98228460 CN 98228460 U CN98228460 U CN 98228460U CN 2343971 Y CN2343971 Y CN 2343971Y
Authority
CN
China
Prior art keywords
energy
ray
ionization chamber
electrode
low
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 98228460
Other languages
English (en)
Inventor
代理
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 98228460 priority Critical patent/CN2343971Y/zh
Application granted granted Critical
Publication of CN2343971Y publication Critical patent/CN2343971Y/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Measurement Of Radiation (AREA)
  • Electron Tubes For Measurement (AREA)

Abstract

本实用新型为低能X射线阵列探测器。其电离室壳体2有入射窗口4,壳体内有电离室电极1和电离室阵列电极3。阵列电极3由若干条形电极7排列组成,条形电极7之间只有空气间隙。

Description

低能量X射线阵列探测器
本实用新型与用于放射诊断的仪器有关,尤其与立体放射诊断的低能量X射线阵列探测器有关。
已有的西门子公司的电高室阵列探测器用于CT机,其能量较高(150Kev以上),对孕妇作常规检查不安全;由于能量较高,为防电子窜扰,电离室阵列电极间装有隔板,阵列电极的制造较困难,制造成本较高;加上隔板将形成死区,影响仪器的空间分辨率。电离室壳体的窗口材料为不锈钢薄板,对X射线的吸收和干扰较大,电子容易产生窜扰。
本实用新型的目的是提供一种结构简单,制造容易,成本低廉,对孕妇作常规检查安全的低能量X射线阵列探测器。
本实用新型是这样实现的:电离室壳体2有入射窗口4,壳体内有电离室电极1和电离室阵列电极3,电离室阵列电极3由若干条形电极7排列组成,条形电极7之间只有空气间隙。
本实用新型的入射窗口4由对X射线吸收较小的板材制成。
本实用新型的X射线能量≤100Kev。
本实用新型的条形电极之间只有空气间隙而没有隔板,不会形成死区,空间分辩率高。没有隔板、电极的制造容易,制造成本可降低,窗口材料采用对X射线吸收较小的Be、Ti等板材,可保证被准直后的X射线很好地进入电离室内,最大限度减小窜扰,设计为低能量X射线探测、用于孕妇的常规检查安全。也可用于不同能量的X射线的探测。
图1为本实用新型的工作原理图。
图2为电离室结构图。
图3为图2的左视剖视图。
图4为图2的俯视剖视图。
如下是本实用新型的实施例:
本实用新型可作为位址灵敏探测器,具有如下特点:
1、无电离室间的隔断。
2、仅适用于低能X射线探测。
3、电离室内可对不同的探测X射线能量充以不同气体和不同压力,以保证绝大多数次级电子能量只损失在一个探测器内。
如:对100Kev的X射线可充以1.5MPa的Xe气来探测。
4、可以推论:本实用新型可用于不同能量X射的探测。
工作原理为:准直的X射线由窗口4射入。窗口由对X射线吸收较小的材料制成,如:Be、Ti、Al等。X射线在电极1、3间形成电离,电极1、3间加有高电压,电离电流由电离室阵列电极3引出,进行测量。由于电极3由多个构成阵列,因此称为阵列探测器。

Claims (3)

1、一种低能X射线阵列探测器,电离室壳体(2)有入射窗口(4),壳体内有电离室电极(1)和电高室阵列电极(3),其特征在于电离室阵列电极(3)由若干条形电极(7)排列组成,条形电极(7)之间只有空气间隙。
2、根据权利要求1所述的探测器,其特征在于入射窗口(4)由对X射线吸收较小的板材制成。
3、根据权利要求1或2所述的探测器,其特征在于X射线能量≤100Kev。
CN 98228460 1998-03-18 1998-03-18 低能量x射线阵列探测器 Expired - Fee Related CN2343971Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98228460 CN2343971Y (zh) 1998-03-18 1998-03-18 低能量x射线阵列探测器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 98228460 CN2343971Y (zh) 1998-03-18 1998-03-18 低能量x射线阵列探测器

Publications (1)

Publication Number Publication Date
CN2343971Y true CN2343971Y (zh) 1999-10-20

Family

ID=33978555

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 98228460 Expired - Fee Related CN2343971Y (zh) 1998-03-18 1998-03-18 低能量x射线阵列探测器

Country Status (1)

Country Link
CN (1) CN2343971Y (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101156782B (zh) * 2006-10-03 2012-05-30 通用电气公司 数字x射线探测器
TWI414266B (zh) * 2006-02-01 2013-11-11 Ethicon Endo Surgery Inc 用於吻合術之橢圓形管腔內手術釘合器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI414266B (zh) * 2006-02-01 2013-11-11 Ethicon Endo Surgery Inc 用於吻合術之橢圓形管腔內手術釘合器
CN101156782B (zh) * 2006-10-03 2012-05-30 通用电气公司 数字x射线探测器

Similar Documents

Publication Publication Date Title
Charpak et al. Some developments in the operation of multiwire proportional chambers
RU2147138C1 (ru) Матричный детектор ионизации газа для радиографических исследований
US9678229B2 (en) Neutron detector using proportional counters
EP2979115B1 (en) Radiation detection apparatus
US4785168A (en) Device for detecting and localizing neutral particles, and application thereof
US4264816A (en) Ionization chamber
Orphan et al. A Ge (Li) spectrometer for studying neutron capture gamma rays
CN2343971Y (zh) 低能量x射线阵列探测器
CN216900946U (zh) 一种无壁型gem组织等效正比探测器
US4193000A (en) Radiation detector adapted for use with a scanner
US4301368A (en) Ionizing radiation detector adapted for use with tomography systems
Brion Ionization of Oxygen by``Monoenergetic''Electrons
Bolotnikov et al. Dual-anode high-pressure xenon cylindrical ionization chamber
Lindsay et al. Absolute partial cross sections for electron impact ionization of SO2 from threshold to 1000 eV
Sipilä Inert gas mixtures for proportional counters
Tavendale Effect of Ion Recombination Luminescence on the Linearity of Energy Response of Gas Scintillation Counters
Jiang et al. A gas-filled time-of-flight detector system and a new method for particle identification
Shapira et al. A three dimensional beam profile monitor based on residual and trace gas ionization
JP2002014171A (ja) 高性能He−3中性子計数装置
Shaikh et al. Two-dimensional position sensitive neutron detector
Gruhn et al. Parallel-plate time projection chamber operation in a magnetic field
Tomitani et al. Large area proportional counter for assessment of plutonium lung burden
Golovatyuk et al. Some characteristics of plastic streamer tubes
Averin et al. The high density xenon filled spectrometer for cosmic gamma-ray line observation
CN114566304A (zh) 一种具有离子质荷比甄别功能的脉冲束团成形装置

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee