CN1401996A - Gamma-ray radiation source device for vehicle-mounted container inspecting system - Google Patents
Gamma-ray radiation source device for vehicle-mounted container inspecting system Download PDFInfo
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- CN1401996A CN1401996A CN 02130950 CN02130950A CN1401996A CN 1401996 A CN1401996 A CN 1401996A CN 02130950 CN02130950 CN 02130950 CN 02130950 A CN02130950 A CN 02130950A CN 1401996 A CN1401996 A CN 1401996A
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- gamma ray
- ray projector
- operating room
- gamma
- radiation source
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- 230000005251 gamma ray Effects 0.000 title claims abstract description 44
- 230000005855 radiation Effects 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 102100025490 Slit homolog 1 protein Human genes 0.000 description 1
- 101710123186 Slit homolog 1 protein Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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Abstract
A gamma-ray radiation source for vehicle-mounted container inspecting system is composed of base frame, gamma-ray source storage, gamma-ray source working chamber, shielding shutter and collimator. Its advantages are compact structure, and simple operation.
Description
Technical field:
The present invention relates to be used for the gamma-ray radiation source device of vehicle-mounted container inspecting system, belong to the Application of Nuclear Technology field
Background technology:
The digital radiation imaging container pick-up unit of existing various models, as described in the product information and Chinese patent ZL93102728.4 of French Shi Lunbeixie company, German Heyman company, British Aerospace PLC, all use electron accelerator (electrostatic accelerator or linear accelerator) to do its sigmatron source; Accelerator can satisfy requirements such as penetration capacity and other image indexes, but following shortcoming is also arranged:
1. the huge heaviness of equipment, system complex needs special operation personnel, and the maintenance amount is big, as the radiation source of vehicle-mounted container inspecting system difficulty relatively;
2. radiation intensity is very high, is difficult for protection, and the barrier shield thickness at the main position of protective construction reaches 2 meters, the more difficult enforcement of the shielding of vehicular system;
3. because the sigmatron that accelerator produces is not an isotropy, used irradiation field subtended angle is generally about 30 °, thereby for making its irradiation field can contain large-scale tested objects such as container, detector array and accelerator target just require wide apart, thereby cause sensing range little big with floor area, when more outstanding in vehicle-mounted container inspecting system.
Summary of the invention:
The purpose of this invention is to provide the gamma-ray radiation source device that is used for vehicle-mounted container inspecting system that a kind of volume is little, sensing range is big.
This gamma-ray radiation source device is made up of base framework, gamma ray projector apotheca, gamma ray projector operating room, shielding shutter, collimating apparatus five parts.Base framework is a framed structure, settles gamma ray projector apotheca, gamma ray projector operating room, shielding shutter, collimating apparatus etc. in framed structure.The gamma ray projector operating room is an approximate spheroid (see figure 3), from the center along radial direction one circular hole is outwards arranged, the conduit that can hold on the apotheca enters, and with the circular hole opposite position one fan-shaped outgoing linear slit is arranged, gamma ray projector operating room and gamma ray projector apotheca arranged adjacent.The shielding shutter is a rectangle derby, be placed in gamma ray projector operating room outgoing linear slit front portion, collimating apparatus also is a rectangle derby, and the centre has a narrow slit (see figure 4) along its length, collimating apparatus is placed in shielding shutter front, and relative with the fan-shaped outgoing linear slit in gamma ray projector operating room.
Background radiation source apparatus when work, gamma ray projector is entered gamma ray projector operating room by conduit by the circular hole of gamma ray projector operating room from the gamma ray projector apotheca.Remove the shielding shutter, gamma-rays can penetrate by the outgoing linear slit of gamma ray projector operating room, and by shining tested object behind the collimating device collimation.
Background radiation source apparatus compact conformation, simple to operate, easy to maintenance can be installed on the mobile inspection vehicle and detect.
Description of drawings:
Fig. 1 vehicle-carried gamma ray radiation source device of the present invention side view
Fig. 2 vehicle-carried gamma ray radiation source device of the present invention front elevation
Fig. 3 is a gamma ray projector operating room structural representation
Fig. 4 is the side view of Fig. 3
Fig. 5 is the collimating apparatus structural representation
Embodiment:
1,2 explanation background radiation source apparatus embodiment are as follows in conjunction with the accompanying drawings: this vehicle-mounted container inspecting system gamma-ray radiation source device, comprise gamma ray projector apotheca 9, source conduit 12, gamma ray projector operating room 1, shielding shutter 3 and attachment rail 2, preceding collimating apparatus 4, framework 5, actuating doors 6, fluctuating orbit 7 and fixed pin 8, etc.Gamma ray projector apotheca 9 links to each other with the slide block of line slideway 11 by supporting plate 10, line slideway 11 is installed on the base of framework 5, the source conduit 12 of gamma ray projector apotheca 9 front ends leads to gamma ray projector operating room 1 core radiation source working position, gamma ray projector operating room 1 is the almost spherical shield of being made by lead, tungsten or other heavy metals, add with resin between shield and the outside casing that is welded by steel plate and fill, resin is consolidated into an integral body with shield and casing.There is fan-shaped outgoing linear slit 1 front portion, gamma ray projector operating room, shielding shutter 3 is connected with gamma ray projector operating room 1 by two line slideways, shielding shutter normality position is just in time blocked the outgoing linear slit, when in testing process, needing ray, open shielding shutter 3 by cylinder or motor drive mechanism driving, send ray, collimating apparatus 4 is placed in shielding shutter 3 fronts, ray is collimated, after finishing detection, close shielding shutter 3, for reducing to shield the inertia impact of shutter, the damper buffering is installed at the shielding shutter two ends on the operating room.In the drive unit design of shielding shutter, when considering outage or other accidents, the shielding shutter all can be closed automatically.In two positions (opening and closing) of shielding shutter position transducer being housed all monitors its position, dose sensor also is installed in radiation source device, utilize the different positions to radiation source of the dosage of radiation source in apotheca and operating room to monitor, dose sensor can be monitored the shielding shutter position equally.In order to prevent the maloperation of unrelated person, the mandate that electric control lock and mechanical lock also give different stage respectively has been installed on the radiation source device casing, with the handled easily personal management, and have anti-theft feature.
Use when of the present invention,,, radiation source device directly can be fixed on the radiation source support that detects special car as container carrier if detected object is relatively-stationary; If detected object wider range, promptly detect lorry and also might detect car, can be fastened on the radiation source support of inspection vehicle by fluctuating orbit, radiation source device can be fallen certain height on the detection special car like this, the suitable height of detector carriage lifting correspondingly can enlarge the detection altitude range of detection system.Need not other repackings like this, a vehicular detection system just promptly can be used for container and detect, and also can detect car or lorry, has widened the purposes of detection system greatly.
Claims (1)
1. gamma-ray radiation source device that is used for vehicle-mounted container inspecting system, it is characterized in that this device is by base framework, the gamma ray projector apotheca, the gamma ray projector operating room, the shielding shutter, collimating apparatus five parts are formed, base framework is a framed structure, in framed structure, settle the gamma ray projector apotheca, the gamma ray projector operating room, the shielding shutter, collimating apparatus etc., the gamma ray projector operating room is an approximate spheroid (see figure 3), from the center along radial direction one circular hole is outwards arranged, the conduit that can hold on the apotheca enters, with the circular hole opposite position one fan-shaped outgoing linear slit is arranged, gamma ray projector operating room and gamma ray projector apotheca arranged adjacent, the shielding shutter is a rectangle derby, be placed in gamma ray projector operating room outgoing linear slit front portion, collimating apparatus also is a rectangle derby, the centre has a narrow slit (see figure 4) along its length, collimating apparatus is placed in shielding shutter front, and relative with the fan-shaped outgoing linear slit in gamma ray projector operating room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130950 CN1401996A (en) | 2002-09-23 | 2002-09-23 | Gamma-ray radiation source device for vehicle-mounted container inspecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130950 CN1401996A (en) | 2002-09-23 | 2002-09-23 | Gamma-ray radiation source device for vehicle-mounted container inspecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1401996A true CN1401996A (en) | 2003-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02130950 Pending CN1401996A (en) | 2002-09-23 | 2002-09-23 | Gamma-ray radiation source device for vehicle-mounted container inspecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1401996A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005001457A1 (en) * | 2003-06-27 | 2005-01-06 | Tsinghua University | Gamma radiation imaging system for non-destructive inspection of the luggage |
| CN103422767A (en) * | 2013-07-29 | 2013-12-04 | 中国原子能科学研究院 | Pneumatic two-pass shielding shutter |
| CN104409125A (en) * | 2014-10-08 | 2015-03-11 | 兰州工大科技有限公司 | Novel safety can |
-
2002
- 2002-09-23 CN CN 02130950 patent/CN1401996A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005001457A1 (en) * | 2003-06-27 | 2005-01-06 | Tsinghua University | Gamma radiation imaging system for non-destructive inspection of the luggage |
| US7424094B2 (en) | 2003-06-27 | 2008-09-09 | Tsinghua University | Gamma radiation imaging system for non-destructive inspection of the luggage |
| CN103422767A (en) * | 2013-07-29 | 2013-12-04 | 中国原子能科学研究院 | Pneumatic two-pass shielding shutter |
| CN103422767B (en) * | 2013-07-29 | 2016-06-29 | 中国原子能科学研究院 | A kind of pneumatic two-pass shielding shutter |
| CN104409125A (en) * | 2014-10-08 | 2015-03-11 | 兰州工大科技有限公司 | Novel safety can |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |