摘要:
Gamma radiation imaging system for non-destructive inspection of the luggage contains a DR sub-system, which obtains the projected image of the luggage by translationally scanning, and a CT sub-system, which obtains the tornograph image of the luggage by rotating scanning. Said DR sub-system includes a fixed gantry, a conveyor system, a radiation source mounted on the fixed gantry, front and back collimators, and the array detector. Said CT sub-system includes a rotating gantry, a conveyor system, a radiation source mounted on the rotating gantry, front and back collimators, and the array detector, wherein, the radiation source in said CT sub-system is 192Ir or 75Se radioactive isotope gamma source with high specific activity. Said gamma source is enclosed in a shield chamber with a projecting opening. The shield chamber is mounted on said rotating gantry. Said array detector is adapted for detecting gamma ray of 192Ir or 75Se radioactive isotope; The radiation source in said DR sub-system is 192Ir or 75Se radioactive isotope gamma source with high specific activity, said gamma source is enclosed in a shield chamber with a projecting opening. The shield chamber is mounted on said fixed gantry. Said array detector is adapted for detecting gamma ray of 192Ir or 75Se radioactive isotope.
摘要翻译:用于行李无损检测的伽马射线成像系统包含DR子系统,通过平移扫描获取行李的投影图像,以及CT子系统,通过旋转扫描获取行李的地震图像。 所述DR子系统包括固定机架,输送机系统,安装在固定机架上的辐射源,前后准直仪和阵列检测器。 所述CT子系统包括旋转机架,传送系统,安装在旋转机架上的辐射源,前后准直仪和阵列检测器,其中,所述CT子系统中的辐射源为“ / SUP> Ir或<75> Se具有高比活度的放射性同位素γ源。 所述伽马源封闭在具有突出开口的屏蔽室中。 屏蔽室安装在所述旋转机架上。 所述阵列检测器适用于检测gamma detecting Ir Ir Ir or Se Se Se detecting detecting detecting detecting;;;;;;;;;;; 所述DR子系统中的辐射源是具有高比活性的192放射性同位素γ源,所述伽马源封装在具有突出 开放 屏蔽室安装在所述固定机架上。 所述阵列检测器适用于检测192和/或75Se放射性同位素的γ射线。
摘要:
The invention relates to a device for detecting the thickness and crown of plates and strips, belonging to the field of nuclear technology applications. The device comprises a C-frame; two ray source mounted in an upper arm of the C-frame and distributed at an interval along the width direction of a steel plate/strip; two rows of gas-pressurized ionization chamber detector arrays mounted in a lower arm of the C-frame and distributed at an interval along the moving direction of the plate/strip; collimators mounted below the two ray source, the collimators enabling the rays of each ray source to only irradiate to a corresponding row of detectors; pre-amplifier modules connected with the detector arrays; a data collector connected with the pre-amplifier modules; a data processing and displaying computer connected with the data collector; and a cooling water and pressurized air service system and a control system for ensuring system operation and monitoring. The device of the invention is simple in structure and high in dynamic measurement accuracy, and the detectors have the advantages of small temperature drift, irradiation resistance, high spatial resolution, high cost performance and the like.
摘要:
The invention relates to a device for detecting the thickness and crown of plates and strips, belonging to the field of nuclear technology applications. The device comprises a C-frame; two ray source mounted in an upper arm of the C-frame and distributed at an interval along the width direction of a steel plate/strip; two rows of gas-pressurized ionization chamber detector arrays mounted in a lower arm of the C-frame and distributed at an interval along the moving direction of the plate/strip; collimators mounted below the two ray source, the collimators enabling the rays of each ray source to only irradiate to a corresponding row of detectors; pre-amplifier modules connected with the detector arrays; a data collector connected with the pre-amplifier modules; a data processing and displaying computer connected with the data collector; and a cooling water and pressurized air service system and a control system for ensuring system operation and monitoring. The device of the invention is simple in structure and high in dynamic measurement accuracy, and the detectors have the advantages of small temperature drift, irradiation resistance, high spatial resolution, high cost performance and the like.
摘要:
The present invention provides a device of gas array detectors for high energy X or .gamma.-rays radiography. This device comprises a plurality of gas-pressurized array ion-chamber units mounted on a frame. Each of the gas-pressurized array ion-chamber units is constituted by pressure proof case (1,5), window (2), strap electrodes system (3), electrodes system support (4) and high pressure gas filled therein. The output signals of the detectors depend on the ionizing effect caused by the secondary electrons produced by the interactions of the X, .gamma.-rays and the high pressure gas.
摘要:
Gamma radiation imaging system for non-destructive inspection of the luggage contains a DR sub-system, which obtains the projected image of the luggage by translationally scanning, and a CT sub-system, which obtains the tornograph image of the luggage by rotating scanning. Said DR sub-system includes a fixed gantry, a conveyor system, a radiation source mounted on the fixed gantry, front and back collimators, and the array detector. Said CT sub-system includes a rotating gantry, a conveyor system, a radiation source mounted on the rotating gantry, front and back collimators, and the array detector, wherein, the radiation source in said CT sub-system is 192Ir or 75Se radioactive isotope gamma source with high specific activity. Said gamma source is enclosed in a shield chamber with a projecting opening. The shield chamber is mounted on said rotating gantry. Said array detector is adapted for detecting gamma ray of 192Ir or 75Se radioactive isotope; The radiation source in said DR sub-system is 192Ir or 75Se radioactive isotope gamma source with high specific activity, said gamma source is enclosed in a shield chamber with a projecting opening. The shield chamber is mounted on said fixed gantry. Said array detector is adapted for detecting gamma ray of 192Ir or 75Se radioactive isotope.
摘要翻译:用于行李无损检测的伽马射线成像系统包含DR子系统,通过平移扫描获取行李的投影图像,以及CT子系统,通过旋转扫描获取行李的地震图像。 所述DR子系统包括固定机架,输送机系统,安装在固定机架上的辐射源,前后准直仪和阵列检测器。 所述CT子系统包括旋转机架,传送系统,安装在旋转机架上的辐射源,前后准直仪和阵列检测器,其中,所述CT子系统中的辐射源为“ / SUP> Ir或<75> Se具有高比活度的放射性同位素γ源。 所述伽马源封闭在具有突出开口的屏蔽室中。 屏蔽室安装在所述旋转机架上。 所述阵列检测器适用于检测gamma detecting Ir Ir Ir or Se Se Se detecting detecting detecting detecting;;;;;;;;;;; 所述DR子系统中的辐射源是具有高比活性的192放射性同位素γ源,所述伽马源封装在具有突出 开放 屏蔽室安装在所述固定机架上。 所述阵列检测器适用于检测192和/或75Se放射性同位素的γ射线。