CN111803116A - Method for reducing radiation of X-ray detection environment - Google Patents
Method for reducing radiation of X-ray detection environment Download PDFInfo
- Publication number
- CN111803116A CN111803116A CN202010692054.4A CN202010692054A CN111803116A CN 111803116 A CN111803116 A CN 111803116A CN 202010692054 A CN202010692054 A CN 202010692054A CN 111803116 A CN111803116 A CN 111803116A
- Authority
- CN
- China
- Prior art keywords
- ray
- shielding
- generating device
- bulb tube
- channel
- 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.)
- Pending
Links
- 230000005855 radiation Effects 0.000 title claims abstract description 40
- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 18
- 238000003384 imaging method Methods 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 description 5
- 238000003745 diagnosis Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005865 ionizing radiation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/10—Safety means specially adapted therefor
- A61B6/107—Protection against radiation, e.g. shielding
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- X-Ray Techniques (AREA)
Abstract
The invention discloses a method for reducing radiation of an X-ray detection environment, which comprises the following steps: s1, arranging an X-ray shielding structure at the X-ray generating device, wherein the X-ray shielding structure shields the X-ray bulb tube, and X-rays emitted by the X-ray bulb tube are emitted from an emitting port of the X-ray generating device; s2, receiving end: arranging a protective medium and a first shielding plate on a detected person, wherein the detected person is positioned between the protective medium and the first shielding plate, the protective medium covers the detected part of the detected person, an X-ray digital detector for imaging is arranged between the detected person and the first shielding plate, and the protective medium is arranged between the X-ray generating device and the detected part; s3, operation end: a second shielding plate is arranged between the operator and the X-ray generating device. The invention greatly reduces the X-ray radiation in the environment, thereby solving the X-ray radiation problem in special scenes such as non-protection rooms and the like.
Description
Technical Field
The invention relates to the technical field related to reduction of X-ray radiation, in particular to a method for reducing radiation of an X-ray detection environment.
Background
The portable X-ray detection equipment is widely applied to special scenes such as disasters, accidents and the like which need emergency diagnosis. These special scenarios are different from the traditional protected room environment. The portable X-ray detection equipment is easy to leak a large amount of X-rays during working, and further influences the health of surrounding personnel. In the national standard GB18871-2002 basic standards for ionizing radiation protection and radiation source safety and the national standard GBZ 117-2015 requirements for radiation protection for industrial X-ray flaw detection, the radiation dose to the public in the environment is required to be not more than 1 mSv/year. In addition, the national standard 'GBZ 130-2013 medical X-ray diagnosis radiation protection requirements' relates to the requirements that the radiation of the equipment to the human body is controlled below 2.5 mu Gy/h. How to overcome the problem of X-ray radiation of the existing portable X-ray detection equipment in special scenes such as non-guard rooms becomes a technical problem to be solved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method for reducing the radiation of an X-ray detection environment.
In order to achieve the purpose, the invention adopts the following technical scheme: a method of reducing radiation from an X-ray detection environment, comprising:
s1, X-ray emitting end: arranging an X-ray shielding structure at an X-ray generating device, wherein the X-ray shielding structure shields an X-ray bulb tube, and X-rays emitted by the X-ray bulb tube are emitted from an emitting port of the X-ray generating device;
s2, receiving end: arranging a protective medium and a first shielding plate on a detected person, wherein the detected person is positioned between the protective medium and the first shielding plate, the protective medium covers the detected part of the detected person, an X-ray digital detector for imaging is arranged between the detected person and the first shielding plate, the protective medium is arranged between the X-ray generating device and the detected part, and X-rays emitted by an X-ray bulb tube of the X-ray generating device are emitted to the protective medium through an X-ray exit port of the shielding shell of the X-ray shielding structure;
s3, operation end: a second shielding plate is arranged between the operator and the X-ray generating device.
Further elaborating, the X-ray shielding structure comprises an insulating lead frame fixedly installed in an inner cavity of the shielding shell, an X-ray bulb tube is arranged in the inner cavity of the shielding shell, the shielding shell is provided with an X-ray exit port, X-rays generated by the X-ray bulb tube are emitted through the X-ray exit port, cables connected with the X-ray bulb tube are led out of the shielding shell through the insulating lead frame, the shielding shell is provided with a route, the route is provided with a corner, and the cables connected with the X-ray bulb tube sequentially pass through an inlet, the corner and an outlet of the route and are further led out of the X-ray shielding structure; the insulating lead frame is provided with a cable insulating channel along the wire routing channel, the cable insulating channel is arranged between the cable and the wire routing channel, and the cable and the wire routing channel are separated by the cable insulating channel.
Stated further, the second shielding plate has a width of at least 60cm and a height of at least 160 cm.
The invention has the beneficial effects that: the X-ray shielding structure is arranged at the X-ray generating device to reduce X-ray leakage at the X-ray emitting end; a protection medium and a first shielding plate are arranged at a receiving end, the protection medium reduces the reflection of X rays and filters low-energy X rays, and the first shielding plate shields and absorbs the rest X rays; the arrangement of the second shielding plate at the operation end further reduces the radiation risk of the operator. Under the mutual cooperation of the shielding protection measures at the three positions, the X-ray radiation in the environment is greatly reduced, so that the X-ray radiation problem in special scenes such as non-protection rooms is solved, the radiation dose of the public in the environment required in the national standard GB18871-2002 basic standard for ionizing radiation protection and radiation source safety and the requirement for GBZ 117-2015 industrial X-ray flaw detection radiation protection is not more than 1 mSv/year, and the requirement for controlling the radiation of the equipment to the human body to be less than 2.5 Gy mu/h is met in the national standard GBZ130-2013 medical X-ray diagnosis radiation protection requirement.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic structural diagram of an X-ray shielding structure in an oil tank of an X-ray generating device.
Fig. 3 is a sectional view of the X-ray shielding structure.
Fig. 4 is a cross-sectional view of the shield case.
Fig. 5 is a cloud of X-ray radiation intensity distributions after the present invention is employed.
Reference numerals: 10. an X-ray shielding structure; 11. a shielding housing; 111. an X-ray exit port; 112. a wire path; 12. an insulated lead frame; 121. a cable insulation channel; 20. an X-ray bulb; 30. an oil tank; 40. an AC-DC converter; 50. a filament transformer; 60. a high voltage transformer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
With reference to fig. 1, a method for reducing radiation in an X-ray detection environment includes:
s1, X-ray emitting end: the X-ray shielding structure 10 is arranged at the X-ray generating device, the X-ray shielding structure 10 shields the X-ray bulb tube 20, X-rays emitted by the X-ray bulb tube 20 can only be emitted from an emitting opening of the X-ray generating device, and leakage of the X-rays at the X-ray emitting end of the X-ray generating device is prevented;
s2, receiving end: the method comprises the steps that a protection medium and a first shielding plate are arranged on a detected person, the detected person is located between the protection medium and the first shielding plate, the protection medium covers the detected part of the detected person, an X-ray digital detector for imaging is arranged between the detected person and the first shielding plate, the protection medium is arranged between an X-ray generating device and the detected part, and X-rays emitted by an X-ray bulb tube 20 of the X-ray generating device are emitted to the protection medium through an X-ray exit port 111 of a shielding shell 11 of an X-ray shielding structure 10;
the shape of the protective medium is selected from a plane shape or a curved surface shape to cover the detected person. The protection medium with the curved surface shape is preferably adopted to cover the detected person, the protection medium with the curved surface shape can better cover the detected person, X rays irradiated on the detected person and reflected out are more comprehensively shielded and absorbed, X-ray radiation generated to the surrounding environment in the X-ray detection process is further reduced, and the safety performance is improved.
Specifically, the protective medium is made of materials such as copper and lead which have low reflection characteristics and low shielding performance on X-rays and are made of uniform materials. The protective medium can reduce the reflectivity of X-rays, reduce the X-ray reflection amount by more than 80 percent and reduce the X-ray radiation caused by reflection in the environment. In order to reduce X-ray reflection and ensure the quality of an X-ray image, the shielding performance of the protective medium to the X-ray is less than 0.1mm lead equivalent. After the X-ray beam passes through the X-ray digital detector for imaging, the first shielding plate shields and absorbs the remaining X-rays to prevent the X-rays from being re-radiated into the environment. The first shielding plate is made of an X-ray shielding material such as lead, and the lead equivalent is more than 1mm to ensure sufficient shielding. The protection medium is made of materials with uniform materials, and the uniformity of the strength of the X-ray after passing through the protection medium can be further ensured, so that the imaging quality of the X-ray after passing through the protection medium is ensured.
S3, operation end: a second shielding plate is arranged between the operator and the X-ray generating device. Since the shielding medium can only reduce the amount of X-ray reflections, there is still a partial reflection of X-rays in the surrounding environment. In order to avoid the injury of the operator caused by radiation, a second shielding plate is arranged between the operator and the X-ray generating device, and the shielding performance of the second shielding plate is at least 0.35mm lead equivalent. The second shield plate has a width of at least 60cm and a height of at least 160 cm.
Referring to fig. 2 to 4, the X-ray shielding structure 10 includes an insulating lead frame 12 fixedly installed in an inner cavity of a shielding housing 11, an X-ray tube 20 disposed in the inner cavity of the shielding housing 11, the shielding housing 11 having an X-ray exit port 111, X-rays generated by the X-ray tube 20 exiting through the X-ray exit port 111, cables connected to the X-ray tube 20 being guided out of the shielding housing 11 through the insulating lead frame 12, the shielding housing 11 having a trace 112, the trace 112 having a corner, the cables connected to the X-ray tube 20 passing through the entrance, the corner, and the exit of the trace 112 in sequence and further exiting from the X-ray shielding structure 10, as shown in fig. 3 and 4, the corner is disposed such that the X-rays emitted by the X-ray tube 20 cannot directly irradiate from the entrance of the trace 112 to the exit of the trace 112, the X-rays emitted by the X-ray tube 20 cannot leak to the outside through the trace 112, thereby effectively avoiding leakage of X-rays; the insulated lead frame 12 is provided with a cable insulation channel 121 along the trace channel 112, the cable insulation channel 121 is provided between the cable and the trace channel 112, and the cable insulation channel 121 separates the cable from the trace channel 112. As shown in fig. 2, the X-ray shielding structure 10 is specifically disposed in an oil tank 30 of the X-ray generating apparatus, and the oil tank 30 is further provided with an ac-dc converter 40, a filament transformer 50, a high voltage transformer 60, and other components.
In the method for reducing the X-ray radiation in the detection environment, the function of S1 is to make the X-ray only be emitted from the emitting port of the X-ray generating device, and shield the other directions; s2 is used for reducing X-ray reflection and ensuring the quality of an X-ray image; s3 is used for locally enhancing the protection of the operation site, so that the radiation of the operation site is reduced to below 2.5 uSv/h.
Experiments prove that when exposure conditions are 50kV and 2.5mAs and 6mA, the X-ray tube is taken as the center to carry out exposure, and the X-ray radiation intensity is within 2m range, as shown in figure 5. The radiation dose rate of the operation position is below 2.5uSv/h, and the radiation value meets the requirement that the radiation of the equipment to the human body is controlled to be below 2.5uSv/h in the national standard 'GBZ 130-2013 medical X-ray diagnosis radiation protection requirement'. In the region of the non-operative position, the X-ray radiation values of all positions are recorded in the X-ray radiation field.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, which are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
The above description does not limit the technical scope of the present invention, and any modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (3)
1. A method of reducing radiation from an X-ray detection environment, characterized by: comprises the following steps:
s1, X-ray emitting end: arranging an X-ray shielding structure (10) at an X-ray generating device, wherein the X-ray shielding structure (10) shields an X-ray bulb tube (20), and X-rays emitted by the X-ray bulb tube (20) are emitted from an emitting port of the X-ray generating device;
s2, receiving end: arranging a protective medium and a first shielding plate on a detected person, wherein the detected person is positioned between the protective medium and the first shielding plate, the protective medium covers the detected part of the detected person, an X-ray digital detector for imaging is arranged between the detected person and the first shielding plate, the protective medium is arranged between the X-ray generating device and the detected part, and X-rays emitted by an X-ray bulb tube (20) of the X-ray generating device are emitted to the protective medium through an X-ray exit port (111) of a shielding shell (11) of the X-ray shielding structure (10);
s3, operation end: a second shielding plate is arranged between the operator and the X-ray generating device.
2. The method of reducing radiation of an X-ray detection environment of claim 1, wherein: the X-ray shielding structure (10) comprises an insulating lead frame (12) fixedly mounted in an inner cavity of a shielding shell (11), an X-ray bulb tube (20) is arranged in the inner cavity of the shielding shell (11), the shielding shell (11) is provided with an X-ray exit port (111), X-rays generated by the X-ray bulb tube (20) are emitted through the X-ray exit port (111), a cable connected with the X-ray bulb tube (20) is guided out of the shielding shell (11) through the insulating lead frame (12), the shielding shell (11) is provided with a wire walking channel (112), the wire walking channel (112) is provided with a corner, and the cable connected with the X-ray bulb tube (20) sequentially passes through an inlet, the corner and an outlet of the wire walking channel (112) and then is led out of the X-ray shielding structure (10); the insulation lead frame (12) is provided with a cable insulation channel (121) along the wire routing channel (112), the cable insulation channel (121) is arranged between the cable and the wire routing channel (112), and the cable and the wire routing channel (112) are separated by the cable insulation channel (121).
3. The method of reducing radiation of an X-ray detection environment of claim 1, wherein: the second shielding plate has a width of at least 60cm and a height of at least 160 cm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010692054.4A CN111803116A (en) | 2020-07-17 | 2020-07-17 | Method for reducing radiation of X-ray detection environment |
| PCT/CN2020/104896 WO2022011743A1 (en) | 2020-07-17 | 2020-07-27 | Method for reducing radiation of x-ray detection environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010692054.4A CN111803116A (en) | 2020-07-17 | 2020-07-17 | Method for reducing radiation of X-ray detection environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111803116A true CN111803116A (en) | 2020-10-23 |
Family
ID=72866455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010692054.4A Pending CN111803116A (en) | 2020-07-17 | 2020-07-17 | Method for reducing radiation of X-ray detection environment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111803116A (en) |
| WO (1) | WO2022011743A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359172A (en) * | 2021-06-01 | 2021-09-07 | 汕头市超声仪器研究所股份有限公司 | Detection method for reducing radiation leakage of X-ray detection equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103598895A (en) * | 2013-11-28 | 2014-02-26 | 中国科学院苏州生物医学工程技术研究所 | Ct scanner shielding device |
| US20160314862A1 (en) * | 2014-12-03 | 2016-10-27 | Korea Institute Of Geoscience And Mineral Resources | X-ray shielding apparatus and method |
| KR20180058902A (en) * | 2016-11-24 | 2018-06-04 | (주)덱스코윈 | Potable X-ray Generator |
| CN209543938U (en) * | 2019-01-28 | 2019-10-25 | 上海乾菲诺农业科技有限公司 | A kind of intelligent control type protective lead room of X-Ray root system scanning imagery equipment |
| CN111407297A (en) * | 2020-03-31 | 2020-07-14 | 汕头市超声仪器研究所有限公司 | Movable medical X-ray shooting equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205681686U (en) * | 2016-06-03 | 2016-11-09 | 深圳市鑫杰出机械科技有限公司 | A kind of x-ray source and screening arrangement thereof |
| CN111407304B (en) * | 2020-03-31 | 2020-11-13 | 汕头市超声仪器研究所有限公司 | Shielding collimation structure of X-ray source |
-
2020
- 2020-07-17 CN CN202010692054.4A patent/CN111803116A/en active Pending
- 2020-07-27 WO PCT/CN2020/104896 patent/WO2022011743A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103598895A (en) * | 2013-11-28 | 2014-02-26 | 中国科学院苏州生物医学工程技术研究所 | Ct scanner shielding device |
| US20160314862A1 (en) * | 2014-12-03 | 2016-10-27 | Korea Institute Of Geoscience And Mineral Resources | X-ray shielding apparatus and method |
| KR20180058902A (en) * | 2016-11-24 | 2018-06-04 | (주)덱스코윈 | Potable X-ray Generator |
| CN209543938U (en) * | 2019-01-28 | 2019-10-25 | 上海乾菲诺农业科技有限公司 | A kind of intelligent control type protective lead room of X-Ray root system scanning imagery equipment |
| CN111407297A (en) * | 2020-03-31 | 2020-07-14 | 汕头市超声仪器研究所有限公司 | Movable medical X-ray shooting equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359172A (en) * | 2021-06-01 | 2021-09-07 | 汕头市超声仪器研究所股份有限公司 | Detection method for reducing radiation leakage of X-ray detection equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022011743A1 (en) | 2022-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6938627B2 (en) | Neutron capture therapy system | |
| JP2009502221A (en) | Irradiation device | |
| CN105393142B (en) | Device for measuring X-ray dose parameters in an X-ray image apparatus and X-ray detector | |
| CN111407297B (en) | Mobile medical X-ray shooting equipment | |
| CN111803116A (en) | Method for reducing radiation of X-ray detection environment | |
| US20070080308A1 (en) | Dental x-ray radiation protection device | |
| KR20200005688A (en) | Apparatus for Reducing Scatter Radiation in Mobile X-ray Equipment | |
| JP4307379B2 (en) | Shield room for ion therapy for neutrons up to energy region GeV | |
| CN211300018U (en) | CT imaging equipment with ionizing radiation shielding | |
| CN205581322U (en) | Binary channels security check machine | |
| CN215687930U (en) | Collimating device for filtering low-energy rays | |
| TWI839257B (en) | Neutron Capture Therapy System | |
| CN220106425U (en) | X-ray vacuum tube with radiation protection structure | |
| CN212089583U (en) | Ray protection device of CT scanner | |
| CN213426548U (en) | Ray safety cabinet labyrinth structure protection device with ray not prone to leakage | |
| CN206960667U (en) | Optimization shielding and sensing configuration for radiation detection | |
| CN203749441U (en) | Isolation observation device of radiotherapy room | |
| US7252433B2 (en) | X-ray apparatus with radiation shielding that accepts an unshielded x-ray radiator therein | |
| US12042313B2 (en) | Radiation protection | |
| CN213546256U (en) | High-voltage X-ray light source radiation protection structure | |
| CN220109754U (en) | CT ray protection device | |
| CN211796551U (en) | Radiation-proof special building material plate | |
| Myoung et al. | Dose and Image Quality Analysis According to The Type of Composite Additional Filter | |
| CN111657989A (en) | Method for reducing radiation of X-ray detection environment from receiving end | |
| CN116705371A (en) | X-ray protection device for material science experiment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 515000 No. 77 Jinsha Road, Shantou City, Guangdong Province Applicant after: Shantou Ultrasonic Instrument Research Institute Co., Ltd Address before: 515000 No. 77 Jinsha Road, Shantou City, Guangdong Province Applicant before: SHANTOU INSTITUTE OF ULTRASONIC INSTRUMENTS Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201023 |