KR20180075102A - Method for manufacturing a radiation shielding filter - Google Patents
Method for manufacturing a radiation shielding filter Download PDFInfo
- Publication number
- KR20180075102A KR20180075102A KR1020160179056A KR20160179056A KR20180075102A KR 20180075102 A KR20180075102 A KR 20180075102A KR 1020160179056 A KR1020160179056 A KR 1020160179056A KR 20160179056 A KR20160179056 A KR 20160179056A KR 20180075102 A KR20180075102 A KR 20180075102A
- Authority
- KR
- South Korea
- Prior art keywords
- radiation shielding
- mixture
- mixing
- barium sulfate
- shielding filter
- Prior art date
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/10—Application or adaptation of safety means
- A61B6/107—Protection against radiation, e.g. shielding
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4035—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis the source being combined with a filter or grating
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
Abstract
Description
본 문건이 개시하는 기술은, 엑스레이 조사(照射)부에 장착되는 필터의 제조방법에 관한 것이다.The technique disclosed in this document relates to a method of manufacturing a filter mounted on an X-ray irradiation portion.
통상 외과(정형외과, 신경외과 등)적 수술 시에는, 수술실에서 C-arm이라고 불리는 이동형 엑스레이 장치가 사용된다. C-arm을 사용하면, 수술 중에 환부를 촬영하여, 정복(Reposition) 등이 잘 이루어 졌는지를 실시간으로 확인할 수 있다.In general surgery (orthopedics, neurosurgery, etc.) surgery, a mobile X-ray device called C-arm is used in the operating room. When using the C-arm, the affected part can be photographed during surgery to confirm in real time whether or not reprocessing has been performed well.
C-arm의 경우, 일반적인 고정형 엑스레이 장치에 비해, 방사선 방출량이 적지만, 수술 도중에 지속적으로 사용되기 때문에, C-arm의 인근에 위치한 의사와 간호사들은 다량에 방사선에 노출될 수밖에 없다.In the case of the C-arm, the amount of radiation emitted is small compared to a conventional fixed x-ray apparatus, but since it is continuously used during surgery, doctors and nurses near the C-arm are exposed to a large amount of radiation.
C-arm에서 발생하는 방사선량을 줄이기 위하여, C-arm의 조사(照射)부에 장착할 수 있는 방사선 차폐 필터에 관한 기술들이 지속적으로 연구되고 있다. 한편, 전술한 방사선 차폐 필터에 관한 일례가, 한국등록특허공보 제10-1638364호(이하 '종래기술'이라 합니다)에 개시되어 있다.In order to reduce the amount of radiation generated by the C-arm, techniques relating to a radiation shielding filter that can be mounted on the C-arm irradiation part have been continuously studied. On the other hand, an example of the above-described radiation shielding filter is disclosed in Korean Patent Registration No. 10-1638364 (hereinafter referred to as "prior art").
그러나 종래기술은, 케이스의 내부에 분말로 된 은과 물이 충전된 액상필터인데, 액상필터의 경우, 제조가 까다로울 뿐만 아니라, 파손의 위험도가 높은 문제점이 있다.However, the conventional technology is a liquid-phase filter filled with silver and water in the inside of the case. However, in the case of the liquid-phase filter, there is a problem that it is difficult to manufacture and there is a high risk of breakage.
가볍고, 파손 위험이 없으며, 방사선 차폐 성능이 우수한 방사선 차폐 필터의 제조방법을 제공하는 것이다.Which is light, has no risk of breakage, and is excellent in radiation shielding performance.
실리콘 폴리머, 황산바륨, 토르말린을 이용한 방사선 차폐 필터의 제조방법이 제시된다.A manufacturing method of a radiation shielding filter using silicon polymer, barium sulfate, and tourmaline is disclosed.
전술한 방사선 차폐 필터의 제조방법의 실시예는, 액상의 실리콘 폴리머(Silicone Polymer)와, 텅스텐으로 코팅된 황산바륨 분말을 혼합가공하는, 제1 혼합단계; 제1 혼합단계에서 생산된 혼합물에 토르말린을 혼합가공하는, 제2 혼합단계; 및, 제2 혼합단계에서 생성된 혼합물에 경화 촉진제를 첨가하여, 상기 혼합물을 원판 형태로 성형하는, 성형단계;를 포함한다.An embodiment of the above-described method of manufacturing a radiation shielding filter includes a first mixing step of mixing a liquid silicone polymer (Silicone Polymer) and a tungsten-coated barium sulfate powder; A second mixing step of mixing tourmaline with the mixture produced in the first mixing step; And a molding step of adding a curing accelerator to the mixture produced in the second mixing step, and molding the mixture into a disc shape.
전술한 실시예는, 본 문건이 개시하는 기술의 일부 양태(Aspect)에 불과하며, 다른 양태나 특징들은 '발명을 실시하기 위한 구체적인 내용'에서 설명된다.The above-described embodiments are only some aspects of the technology disclosed in this document, and other aspects and features are described in the Detailed Description for Carrying Out the Invention.
실시예에 따른 방사선 차폐 필터의 제조방법에 의하여, 제조된 방사선 차폐 필터는 가벼울 뿐만 아니라, 방사선 차폐 성능이 우수하다. According to the manufacturing method of the radiation shielding filter according to the embodiment, the manufactured radiation shielding filter is not only light but also excellent in radiation shielding performance.
또한, 외부 충격에 의해 파손될 위험이 없다.Moreover, there is no risk of being damaged by an external impact.
또한, 다양한 형태(크기 및 두께)로 성형할 수 있으며, 이를 통해 방사선 투과량의 임의로 설정할 수 있는 효과가 있다.Further, it can be molded into various shapes (size and thickness), and the radiation transmittance can be set arbitrarily.
도 1은 실시예에 따른 방사선 차폐 필터의 제조방법을 개략적으로 나타내는 흐름도이다.1 is a flowchart schematically showing a method of manufacturing a radiation shielding filter according to an embodiment.
이하, 첨부된 도면을 참조하여, 방사선 차폐 필터의 제조방법을 구체적으로 설명한다.Hereinafter, a method for manufacturing a radiation shielding filter will be described in detail with reference to the accompanying drawings.
재료준비단계(S200)Material preparing step (S200)
먼저, 롤러 등을 이용하여, 황산바륨을(BaSO4)을 가루(분말)로 만든다. 이때, 황산바륨 분말의 입자 크기는 3미크론(3μm) 이하인 것이 바람직하다. 황산바륨은 방사선을 차폐할 수 있는 물질 중 하나이며, 대표적인 방사선 차폐 물질인 납에 비하면, 인체 유해도가 매우 낮다.First, barium sulfate (BaSO4) is made into powder (powder) using a roller or the like. At this time, the particle size of the barium sulfate powder is preferably 3 microns or less. Barium sulphate is one of the materials that can shield radiation, and the harmfulness to human body is very low compared to lead, which is a typical radiation shielding material.
이어서, 황산바륨 분말에 텅스텐 분말과 물을 혼합한 뒤, 이를 고속으로 회전시켜 교반하면, 황산바륨 분말의 표면에 10 나노 크기의 텅스텐 입자가 달라붙게 된다. 이를 건조하여 수분을 제거하면, 텅스텐으로 코팅된 황산바륨 분말이 생성된다. 한편, 황산바륨 분말, 텅스텐 분말, 물의 혼합비는 '33:2:65' 인 것이 바람직하다. 텅스텐은 황산바륨에 비하여 방사선 차폐율이 우수하며, 텅스텐으로 코팅된 황산바륨 분말은, 일반 황산바륨 분발에 비하여, 방사선 차폐 성능이 우수하다.Then, when tungsten powder and water are mixed with the barium sulfate powder and then stirred and rotated at high speed, 10 nanometer-sized tungsten particles adhere to the surface of the barium sulfate powder. When it is dried to remove water, barium sulfate powder coated with tungsten is produced. On the other hand, the blending ratio of barium sulfate powder, tungsten powder and water is preferably '33: 2: 65 '. Tungsten is superior in radiation shielding ratio to barium sulfate, and barium sulfate powder coated with tungsten is superior in radiation shielding performance to ordinary barium sulfate powder.
제1 혼합단계(S220)In the first mixing step S220,
액상의 실리콘 폴리머와, 텅스텐으로 코팅된 황산바륨 분말을 혼합한 뒤, 이를 일정 시간(대략 30분) 교반한다. 이때, 진공 액상 교반장치를 이용하는 것이 바람직하며, 실리콘 폴리머와 황산바륨 분말은 균일하게 혼합되어야 한다.The liquid silicone polymer and tungsten-coated barium sulfate powder are mixed and stirred for a certain period of time (about 30 minutes). At this time, it is preferable to use a vacuum liquid-phase stirring apparatus, and the silicon polymer and the barium sulfate powder should be uniformly mixed.
제2 혼합단계(S240)In the second mixing step S240,
실리콘 폴리머와 황산바륨 분말이 균일하게 혼합된 혼합물에 토르말린을 혼합한 뒤, 이를 일정 시간(대략 45분) 교반한다. 이때, 진공 액상 교반장치를 이용하는 것이 바람직하며, 실리콘 폴리머, 항산바륨 분말, 토르말린은 균일하게 혼합되어야 한다. 한편, 토르말린은 실리콘 폴리머와 텅스텐으로 코팅된 황산바륨이 혼합될 때, 발생하는 공극을 메워주는 기능을 한다.The tourmaline is mixed with the mixture of the silicone polymer and the barium sulfate powder uniformly, and the mixture is stirred for a predetermined time (about 45 minutes). At this time, it is preferable to use a vacuum liquid-phase stirring apparatus, and the silicone polymer, barium sulfate powder and tourmaline should be homogeneously mixed. On the other hand, tourmaline functions to fill the voids generated when the silicon polymer and the tungsten-coated barium sulphate are mixed.
성형단계(S260)Forming step S260
먼저, 실리콘 폴리머, 황산바륨 분말, 토르말린이 균일하게 혼합된 혼합물에 실리콘 경화 촉진제(C-8 등)를 첨가한 후, 이를 일정 시간(대략 15분) 교반한다. 이때(교반과정에서), 혼합물에 기포가 형성될 수 있는데, 기포로 인해 형성되는 공기층은, 혼합물의 성형성을 저해하고, 제조물의 방사선 차폐율을 현격히 저하 시킨다. First, a silicone hardening accelerator (C-8 or the like) is added to a mixture in which a silicone polymer, barium sulfate powder and tourmaline are uniformly mixed, followed by stirring for a predetermined time (about 15 minutes). At this time (in the stirring process), air bubbles may be formed in the mixture. The air layer formed by the air bubbles hinders the formability of the mixture and significantly reduces the radiation shielding rate of the product.
따라서, 혼합물에 실리콘 경화 촉진제를 첨가한 후, 교반이 이루어진 혼합물은, 압축용 탱크에 투입하여, 1차 압축하고, 롤러 등의 압축기를 이용하여 2차 압축하여, 혼합물 내의 기포를 제거하는 탈포공정을 거치는 것이 바람직하다.Therefore, after the silicone hardening accelerator is added to the mixture, the mixture which has been agitated is put into a compression tank, subjected to primary compression, secondary compression is performed using a compressor such as a roller, and a defoaming process Lt; / RTI >
이어서, 탈포공정을 거친 혼합물을 원판 형태로 성형한다. 성형된 혼합물을 180℃ ~ 220℃의 온도로 일정 시간(대략 15분) 가열하면, 방사선 차폐 필터가 제조된다.Subsequently, the mixture obtained through the defoaming process is molded into a disk shape. When the molded mixture is heated to a temperature of 180 ° C to 220 ° C for a certain period of time (approximately 15 minutes), a radiation shielding filter is produced.
검사및출하단계Inspection and shipment stage (S280)(S280)
제조된 방사선 차폐 필터에 대한 품질검사(스크래치 여부 등)를 실시한 후, 이를 출하한다.After the quality inspection (scratch or not) of the manufactured radiation shielding filter is performed, it is shipped.
구성비율Composition ratio
상기 단계들을 통해 제조된 제조물(방사선 차폐 필터)의 구성비율은, 실리콘 폴리머 12.4%, 텅스텐으로 코팅된 황산바륨 분말 62%, 토르말린 25%, 경화 촉진제 0.6%인 것이 바람직하다.The composition of the product (radiation shielding filter) manufactured through the above steps is preferably 12.4% of silicon polymer, 62% of tungsten-coated barium sulfate powder, 25% of tourmaline, 0.6% of curing accelerator.
텅스텐으로 코팅된 황산바륨 분말의 비율이 55% 이하이면, 방사선 차폐 성능이 현저히 떨어지게 되며, 69% 이상이면, 제1 혼합단계(S220)에서 실리콘 폴리머와, 황산바륨 분말이 균일하게 섞이지 않는 문제점이 있다.If the ratio of the tungsten-coated barium sulfate powder is less than 55%, the radiation shielding performance is significantly deteriorated. If the ratio is more than 69%, the silicone polymer and the barium sulfate powder are not uniformly mixed in the first mixing step (S220) have.
토르말린의 비율이 21% 이하 또는 30% 이상이면, 방사선 차폐 성능이 현저히 떨어지게 되는 문제점이 있다.When the ratio of tourmaline is 21% or less or 30% or more, there is a problem that the radiation shielding performance is remarkably deteriorated.
경화 촉진제의 비율이 0.5% 이하이면, 혼합물이 제대로 경화되지 않으며, 0.7% 이상이면, 혼합물이 필요 이상으로 딱딱해져, 파손 위험이 증가하는 문제점이 있다.If the ratio of the curing accelerator is 0.5% or less, the mixture is not cured properly, and if it is 0.7% or more, the mixture becomes harder than necessary and the risk of breakage increases.
성능 실험Performance experiment
전술한 제조단계를 거쳐 제조된 방사선 차폐 필터(실리콘 폴리머 100g, 텅스텐으로 코팅된 황산 바륨 500g, 토르말린 200g, 경화 촉진제 5g 함유)를 한국산업표준에 X선 방호용품류의 납당량 시험방법(KS A 4025 : 1990, 2005년 확인)과 동일한 방법으로, 성능 실험을 실시 하였다.The radiation shielding filter (containing 100 g of silicone polymer, 500 g of barium sulfate coated with tungsten, 200 g of tourmaline, and 5 g of curing accelerator) manufactured through the above-described manufacturing steps was applied to the Korean industry standard by the lead equivalence test method of X- 4025: 1990, 2005).
그 결과, 동일 크기의 납의 방사선 차폐율이 95.5%일 때, 전술한 제조단계를 거쳐 제조된 방사선 차폐 필터의 방사선 차폐율은 99.1%였다.As a result, when the radiation shielding ratio of the same size of lead was 95.5%, the radiation shielding ratio of the radiation shielding filter manufactured through the above described manufacturing step was 99.1%.
즉, 실시예에 따른 방사선 차폐 필터의 제조방법에 의하여, 제조된 방사선 차폐 필터는 가벼울 뿐만 아니라, 방사선 차폐 성능이 우수하다. That is, according to the manufacturing method of the radiation shielding filter according to the embodiment, the manufactured radiation shielding filter is not only light but also excellent in radiation shielding performance.
또한, 외부 충격에 의해 파손될 위험이 없다.Moreover, there is no risk of being damaged by an external impact.
또한, 다양한 형태(크기 및 두께)로 성형할 수 있으며, 이를 통해 방사선 투과량의 임의로 설정할 수 있는 효과가 있다.Further, it can be molded into various shapes (size and thickness), and the radiation transmittance can be set arbitrarily.
이상, 실시예에 따른 방사선 차폐 필터의 제조방법에 대하여 설명하였다.The manufacturing method of the radiation shielding filter according to the embodiment has been described above.
그러나 앞에서 설명한 실시예는 예시에 불과하며, 이는 당해 기술분야에서 통상의 지식을 가진 자에 의하여, 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양하게 변형될 수 있다.However, the above-described embodiment is merely an example, and various modifications may be made by those skilled in the art without departing from the technical idea of the present invention.
따라서, 본 문건이 개시하는 기술의 권리범위는 특정 실시예를 표현하는 문구나 도면에 의해 축소 해석되어선 안 되며, 기술적 사상을 바탕으로 폭넓게 고려(해석)되어야 한다.Accordingly, the scope of rights of the technology disclosed herein is not to be construed as narrowly construed as a representation of a specific embodiment, nor as a limitation on the scope of the invention, and should be broadly interpreted on the basis of technical considerations.
S200 : 재료준비단계
S220 : 제1 혼합단계
S240 : 제2 혼합단계
S260 : 성형단계
S280 : 검사및출하단계S200: Material preparation step
S220: First mixing step
S240: second mixing step
S260: molding step
S280: Inspection and shipment steps
Claims (5)
제1 혼합단계에서 생산된 혼합물에 토르말린을 혼합가공하는, 제2 혼합단계; 및,
제2 혼합단계에서 생성된 혼합물에 경화 촉진제를 첨가하여, 상기 혼합물을 원판 형태로 성형하는, 성형단계;를 포함하는 방사선 차폐 필터의 제조방법.
A first mixing step of mixing a liquid silicone polymer (Silicone Polymer) and a tungsten-coated barium sulfate powder;
A second mixing step of mixing tourmaline with the mixture produced in the first mixing step; And
Adding a curing accelerator to the mixture produced in the second mixing step, and molding the mixture into a disc shape.
상기 성형단계는, 제2 혼합단계에서 생성된 혼합물에 경화 촉진제를 첨가한 후, 상기 혼합물을 압축용 탱크에 투입하여 1차 압축하고, 압축기로 2차 압축하여, 상기 혼합물 내의 기포를 제거하는, 탈포공정을 포함하는 것을 특징으로 하는 방사선 차폐 필터의 제조방법.
The method according to claim 1,
The molding step may include a step of adding a curing accelerator to the mixture produced in the second mixing step, putting the mixture into a compression tank for primary compression, secondary compression with a compressor to remove air bubbles in the mixture, The method of manufacturing a radiation shielding filter according to claim 1, further comprising a defoaming step.
상기 성형단계는, 원판 형태로 성형된 혼합물을, 가열하여 경화하는, 가열경화공정을 포함하는 것을 특징으로 하는 방사선 차폐 필터의 제조방법.
The method according to claim 1,
Wherein the forming step includes a heat curing step of heating and curing the mixture molded in a disk shape.
상기 황산바륨 분말은 입자가 3μm 이하인 것을 특징으로 하는 방사선 차폐 필터의 제조방법.
The method according to claim 1,
Wherein the barium sulfate powder has a particle size of 3 占 퐉 or less.
성형단계에서 성형되는 혼합물의 구성비율은,
실리콘 폴리머 12.4%, 텅스텐으로 코팅된 황산바륨 분말 62%, 토르말린 25%, 경화 촉진제 0.6%인 것을 특징으로 하는 방사선 차폐 필터의 제조방법.The method according to claim 1,
The composition ratio of the mixture to be molded in the molding step is,
A silicon polymer 12.4%, a tungsten-coated barium sulfate powder 62%, a tourmaline 25%, and a curing accelerator 0.6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160179056A KR20180075102A (en) | 2016-12-26 | 2016-12-26 | Method for manufacturing a radiation shielding filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160179056A KR20180075102A (en) | 2016-12-26 | 2016-12-26 | Method for manufacturing a radiation shielding filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20180075102A true KR20180075102A (en) | 2018-07-04 |
Family
ID=62913157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020160179056A KR20180075102A (en) | 2016-12-26 | 2016-12-26 | Method for manufacturing a radiation shielding filter |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20180075102A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230058216A (en) * | 2021-10-22 | 2023-05-03 | 주식회사 오리온이엔씨 | Sealant Composition with Radiation Shielding Function, and Method for Manufacturing the Same |
-
2016
- 2016-12-26 KR KR1020160179056A patent/KR20180075102A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230058216A (en) * | 2021-10-22 | 2023-05-03 | 주식회사 오리온이엔씨 | Sealant Composition with Radiation Shielding Function, and Method for Manufacturing the Same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20140050648A (en) | Coated magnesium oxide particles, method for producing same, heat-dissipating filler, and resin composition | |
| TW201617153A (en) | Green molded body manufacturing method and inorganic sintered body manufacturing method | |
| CN104024365A (en) | Active energy ray curing resin composition, method for manufacturing same, and seal material using same | |
| KR20180075102A (en) | Method for manufacturing a radiation shielding filter | |
| CN105702308A (en) | An epoxy resin based radiation protection material | |
| WO2020040309A1 (en) | Method for producing silicon-containing oxide-coated aluminum nitride particles, and silicon-containing oxide-coated aluminum nitride particles | |
| KR20130019142A (en) | Radiation shield sheet | |
| JP2015126121A (en) | Semiconductor package manufacturing method | |
| JP2021075435A (en) | Method for producing silicon-containing oxide-coated aluminum nitride particles and method for producing heat dissipation resin composition | |
| WO2017014067A1 (en) | Glass filler and resin composition for solid object modeling using same | |
| KR101898234B1 (en) | Resin composition, article prepared by using the same and method of preparing the same | |
| JP4691921B2 (en) | Resin property adjusting agent and property adjusting resin composition using the same | |
| TW201641613A (en) | A method for fabricating a chip scale light-emitting device | |
| JP5464109B2 (en) | Resin property adjusting agent and property adjusting resin composition using the same | |
| TW202204261A (en) | Hollow inorganic particle and method for producing said hollow inorganic particle | |
| WO2018218597A1 (en) | High temperature resistant and aging resistant led packaging material | |
| KR101196740B1 (en) | Radiation shield sheet manufacturing method | |
| RU2275704C2 (en) | Space radiation shielding material | |
| JP6279864B2 (en) | Resin composition, resin molded body, and semiconductor device | |
| EP3067383B1 (en) | Method of manufacturing crosslinked fluororesin powder | |
| KR102306945B1 (en) | Latent hardener composite using dry surface polymerization process, one component epoxy adhesive formulation comprising the same, and fabrication method thereof | |
| JP2001189407A (en) | Manufacturing method for surface-treated inorganic filler, epoxy resin composition for sealing semiconductor, and semiconductor device | |
| JP6385116B2 (en) | Heat-curing epoxy resin curing agent and one-component heat-curing epoxy resin composition containing the same | |
| Wang et al. | Preparation and properties of transparent powder filled soft poly (vinyl chloride) composite film with high transparency | |
| JP3048250B2 (en) | Method for producing high viscosity gelatin |