KR102545093B1 - Scattered radiation shielding sheet based on synthetic rubber - Google Patents

Scattered radiation shielding sheet based on synthetic rubber Download PDF

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KR102545093B1
KR102545093B1 KR1020210185718A KR20210185718A KR102545093B1 KR 102545093 B1 KR102545093 B1 KR 102545093B1 KR 1020210185718 A KR1020210185718 A KR 1020210185718A KR 20210185718 A KR20210185718 A KR 20210185718A KR 102545093 B1 KR102545093 B1 KR 102545093B1
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powder
lead
rubber
human body
synthetic rubber
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김만수
장서구
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김만수
장서구
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    • G21F3/00Shielding characterised by its physical form, e.g. granules, or shape of the material
    • G21F3/02Clothing
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
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    • C08L21/00Compositions of unspecified rubbers
    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00Shielding characterised by the composition of the materials
    • G21F1/02Selection of uniform shielding materials
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    • G21F1/085Heavy metals or alloys
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    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F1/00Shielding characterised by the composition of the materials
    • G21F1/12Laminated shielding materials
    • G21F1/125Laminated shielding materials comprising metals
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/10X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
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    • A61N2005/1094Shielding, protecting against radiation

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Abstract

According to the present invention, the synthetic rubber-based scattered ray shielding sheet optionally includes lead oxide powder in a synthetic rubber base to reduce exposure to human body parts outside the emission field of primary X-rays and secondary scattered rays. The synthetic rubber-based scattered ray shielding sheet is divided into a lead shielding sheet containing lead oxide powder and a lead-free shielding sheet not containing lead oxide powder depending on whether the lead oxide powder is included. Accordingly, the lead shielding sheet effective in shielding scattered rays is placed in places with high radiation sensitivity and the lead-free shielding sheet harmless to the human body is selectively placed in places with low radiation sensitivity thereby appropriately offsetting the harmfulness to the human body due to the scattered rays and the harmfulness to the human body due to the lead content of the shielding sheet.

Description

합성고무 기반 산란선 차폐시트{Scattered radiation shielding sheet based on synthetic rubber}Scattered radiation shielding sheet based on synthetic rubber}

합성고무 기반 산란선 차폐시트에 관한 것이다.It relates to a synthetic rubber-based scattering ray shielding sheet.

현대의학 분야에서 X선은 질병의 진단 및 치료에 있어서 방사선학적 검사에 많이 이용되고 있다. 하지만 전리 방사선인 X선은 환자 및 보호자, 방사선 작업 종사자 등에게 방사선 피폭을 야기하고 있다.In the field of modern medicine, X-rays are widely used for radiological examinations in the diagnosis and treatment of diseases. However, X-rays, which are ionizing radiation, cause radiation exposure to patients, guardians, and radiation workers.

질병의 진단에 필요한 1차 X선에 의한 피폭은 어쩔 수 없으나, 조사야 외 인체부위에 산란되는 방사선(이하, “산란선”이라 칭함)에 의한 저선량 피폭은, 이 피폭이 체내에 누적될 경우 무시할 수준이 아니다.Although exposure to primary X-rays necessary for diagnosis of disease is unavoidable, low-dose exposure due to radiation scattered outside the irradiation field (hereinafter referred to as “scattered rays”) is negligible if this exposure accumulates in the body. not level

특히, 허리나 엉덩이 등 두꺼운 인체부에서 산란되는 X선은, 방사선 감수성이 높은 유방, 갑상선, 생식선, 액와 림프절쪽으로 반사되어 누적될 경우, 그 양이 소량일지라도 암을 유발할 가능성이 높다.In particular, when X-rays scattered from thick human body parts such as the waist and buttocks are reflected and accumulated toward the breast, thyroid gland, gonads, and axillary lymph nodes, which are highly radiation-sensitive, they are highly likely to cause cancer even if the amount is small.

하지만, 임상에서는 산란선을 막기 위한 별다른 차폐체를 쓰지 않고 있고, 예외적으로 여아의 생식선 위치나 임산부의 복부와 같이 특별한 경우에만 고형의 납 앞치마를 덮어주는 있는 실정이다. 하지만 고형의 금속성 차폐체는 인체의 굴곡을 따라 밀착이 어려워, 차폐체와 인체 사이의 공간으로 산란선이 침투되는 것을 완벽히 막지 못한다.However, in clinical practice, no special shielding material is used to prevent scattering rays, and a solid lead apron is exceptionally covered only in special cases, such as the location of the gonads of girls or the abdomen of pregnant women. However, since it is difficult for the solid metallic shielding body to adhere closely along the curves of the human body, it cannot completely prevent scattering rays from penetrating into the space between the shielding body and the human body.

한국등록특허(10-1953363)Korean registered patent (10-1953363)

본 발명의 목적은 상술한 문제점을 해결할 수 있는 합성고무 기반 산란선 차폐시트를 제공하는 데 있다.An object of the present invention is to provide a synthetic rubber-based scattering ray shielding sheet capable of solving the above problems.

상기 목적을 달성하기 위한 합성고무 기반 산란선 차폐시트는,A synthetic rubber-based scattering ray shielding sheet for achieving the above object,

인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 베이스; 및A base made of synthetic rubber having physical properties that can be closely adhered to along the curves of the human body; and

상기 베이스에 혼합된 유납차폐재 또는 무납차폐재를 포함하며,It includes a lead shielding material or a lead-free shielding material mixed with the base,

상기 유납차폐재는, 산화납(PbO)분말을 기본으로 포함하고, 비스무트(Bi)분말 또는 황산바륨(BaSO4)분말 또는 탄산칼슘(CaCO3)분말을 포함하며,The wax shielding material basically includes lead oxide (PbO) powder, and includes bismuth (Bi) powder, barium sulfate (BaSO 4 ) powder, or calcium carbonate (CaCO 3 ) powder,

상기 무납차폐재는, 산화납(PbO)분말을 포함하지 않고, 황산바륨(BaSO4)분말 또는 아이오딘화 칼륨(KI)분말 또는 탄산칼슘(CaCO3)분말 또는 쉘파우더를 포함하는 것을 특징으로 한다.The lead-free shielding material does not contain lead oxide (PbO) powder, but includes barium sulfate (BaSO 4 ) powder, potassium iodide (KI) powder, calcium carbonate (CaCO 3 ) powder, or shell powder. .

또한, 상기 목적은,In addition, the above purpose,

인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 제1베이스와, 상기 제1베이스에 혼합된 무납차폐재로 구성되며, 인체와 직접 접촉하는 제1시트층; 및A first sheet layer composed of a first base composed of synthetic rubber having physical properties capable of being closely adhered to along the curves of the human body and a lead-free shielding material mixed with the first base, and in direct contact with the human body; and

상기 제1시트층 위에 접착되며, 인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 제2베이스와, 상기 제2베이스에 혼합된 유납차폐재로 구성된 제2시트층으로 구성되며,It consists of a second base composed of synthetic rubber adhered on the first sheet layer and having physical properties that can adhere along the curves of the human body, and a second sheet layer composed of a wax shielding material mixed with the second base,

상기 유납차폐재는, 산화납(PbO)분말을 기본으로 포함하고, 비스무트(Bi)분말 또는 황산바륨(BaSO4)분말 또는 탄산칼슘(CaCO3)분말을 포함하며,The wax shielding material basically includes lead oxide (PbO) powder, and includes bismuth (Bi) powder, barium sulfate (BaSO 4 ) powder, or calcium carbonate (CaCO 3 ) powder,

상기 무납차폐재는, 산화납(PbO)분말을 포함하지 않고, 황산바륨(BaSO4)분말 또는 아이오딘화 칼륨(KI)분말 또는 탄산칼슘(CaCO3)분말 또는 쉘파우더를 포함하는 것을 특징으로 하는 합성고무 기반 산란선 차폐시트에 의해 달성된다.The lead-free shielding material does not contain lead oxide (PbO) powder, but includes barium sulfate (BaSO 4 ) powder, potassium iodide (KI) powder, calcium carbonate (CaCO 3 ) powder, or shell powder. This is achieved by a synthetic rubber-based scattering ray shielding sheet.

또한, 상기 목적은,In addition, the above purpose,

구획된 복수개의 산란선 통과공들이 형성된, 벨크로로 제조된 시트틀; 및a seat frame made of Velcro and formed with a plurality of partitioned scattering line passage holes; and

상기 복수개의 산란선 통과공 각각에 탈부착되는, 벨크로가 부착된 단위시트몸체들을 포함되며,It includes unit sheet bodies attached with Velcro that are detachable from each of the plurality of scattering line passage holes,

상기 단위시트몸체들 각각은, 산화납이 포함된 유납차폐시트로 구성되거나,Each of the unit sheet bodies is composed of a lead shielding sheet containing lead oxide, or

상기 단위시트몸체들 각각은, 산화납이 포함되지 않은 무납차폐시트로 구성되거나,Each of the unit sheet bodies is composed of a lead-free shielding sheet that does not contain lead oxide, or

상기 단위시트몸체들 중 일부는 산화납이 포함된 유납차폐시트로 구성되고 나머지는 산화납이 포함되지 않은 무납차폐시트로 구성된 것을 특징으로 하는 합성고무 기반 산란선 차폐시트에 의해 달성된다.This is achieved by a synthetic rubber-based scattering radiation shielding sheet characterized in that some of the unit sheet bodies are composed of lead oxide-containing lead shielding sheets and the rest are lead-free shielding sheets that do not contain lead oxide.

또한, 상기 목적은,In addition, the above purpose,

구획된 복수개의 산란선 통과공들이 형성된, 벨크로로 제조된 시트틀; 및a seat frame made of Velcro and formed with a plurality of partitioned scattering line passage holes; and

상기 복수개의 산란선 통과공 각각에 탈부착되는, 벨크로가 부착된 단위시트몸체들을 포함되며,It includes unit sheet bodies attached with Velcro that are detachable from each of the plurality of scattering line passage holes,

상기 단위시트몸체들 각각은,Each of the unit sheet bodies,

인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 제1베이스와, 상기 제1베이스 상에 혼합된 무납차폐재로 구성되며, 인체와 직접 접촉하는 제1시트층; 및A first sheet layer composed of a first base composed of synthetic rubber having physical properties capable of being closely adhered to along the curves of the human body and a lead-free shielding material mixed on the first base and in direct contact with the human body; and

상기 제1시트층 위에 접착되며, 인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 제2베이스와, 상기 제2베이스 상에 혼합된 유납차폐재로 구성된 제2시트층으로 구성되며,It consists of a second base composed of synthetic rubber adhered on the first sheet layer and having physical properties that can adhere along the curves of the human body, and a second sheet layer composed of a wax shielding material mixed on the second base,

상기 유납차폐재는, 산화납(PbO)분말을 기본으로 포함하고, 비스무트(Bi)분말 또는 황산바륨(BaSO4)분말 또는 탄산칼슘(CaCO3)분말을 포함하며,The wax shielding material basically includes lead oxide (PbO) powder, and includes bismuth (Bi) powder, barium sulfate (BaSO 4 ) powder, or calcium carbonate (CaCO 3 ) powder,

상기 무납차폐재는, 황산바륨(BaSO4)분말 또는 아이오딘화 칼륨(KI)분말 또는 탄산칼슘(CaCO3)분말 또는 쉘파우더를 포함하는 것을 특징으로 하는 합성고무 기반 산란선 차폐시트에 의해 달성된다.The lead-free shielding material is achieved by a synthetic rubber-based scattering ray shielding sheet comprising barium sulfate (BaSO 4 ) powder, potassium iodide (KI) powder, calcium carbonate (CaCO 3 ) powder, or shell powder .

본 발명에 따른 합성고무 기반 산란선 차폐시트는, 일반 X선 촬영 검사 등 진단용 전리 방사선을 이용한 검사에서 발생하는 1차 X선 및 2차 산란선의 조사야 외 인체부위 피폭 저감을 위해, 합성고무 베이스에 산화납 분말을 선택적으로 포함한다. 산화납 분말 포함 여부에 따라 산화납 분말이 포함된 유납차폐시트와, 산화납 분말이 포함되지 않은 무납차폐시트로 구분된다. 따라서, 방사선 감수성이 높은 곳에는 산란선 차폐 효과가 좋은 유납차폐시트를 배치하고, 방사선 감수성이 낮은 곳에는 인체에 무해한 무납차폐시트를 선택적으로 배치하여, 산란선으로 인해 인체에 미치는 유해성과, 차폐시트의 납 성분으로 인해 인체에 미치는 유해성을 적절하게 상쇄시킬 수 있다.The synthetic rubber-based scattering ray shielding sheet according to the present invention is applied to a synthetic rubber base to reduce exposure to human body parts other than the irradiation field of primary X-rays and secondary scattered rays generated in examinations using ionizing radiation for diagnosis such as general X-ray examinations. Lead oxide powder is optionally included. Depending on whether or not lead oxide powder is included, it is divided into a lead shielding sheet containing lead oxide powder and a lead-free shielding sheet not containing lead oxide powder. Therefore, a lead shielding sheet with good scattering shielding effect is placed in a place with high radiation sensitivity, and a lead-free shielding sheet harmless to the human body is selectively placed in a place with low radiation sensitivity. Due to the lead component of the sheet, harmfulness to the human body can be properly offset.

본 발명은 합성고무의 유연성을 그대로 가지고, 인체의 굴곡을 따라 밀착된 상태로 산란선을 차폐할 수 있다. 따라서, 종래 인체의 굴곡에 밀착하기 어려운 고형의 금속성 산란선 차폐체를 사용함으로 인해, 차폐체와 인체 사이의 공간으로 산란선이 침투하는 문제를 해결할 수 있다.The present invention has the flexibility of synthetic rubber and can shield scattering rays in a state of close contact along the curves of the human body. Therefore, by using a conventional solid metallic scattering ray shielding body that is difficult to adhere to the curves of the human body, it is possible to solve the problem of scattering rays penetrating into the space between the shielding body and the human body.

본 발명은 합성고무 기반 산란선 차폐시트로 유연하고 가벼우므로, 종래 납 산란선 차폐체가 가진 갈라짐, 유해성, 무거움 등을 해결할 수 있다.Since the present invention is a synthetic rubber-based scattering radiation shielding sheet that is flexible and light, cracking, harmfulness, and heaviness of conventional lead scattering radiation shielding materials can be solved.

도 1은 본 발명의 제1실시예에 따른 합성고무 기반 산란선 차폐시트를 나타낸 도면으로, 도 1(a)는 산화납(PbO)이 포함된 차폐시트를 나타내고, 도 1(b)는 산화납(PbO)이 포함되지 않은 차폐시트를 나타낸다.
도 2는 본 발명의 제1실시예에 따른 합성고무 기반 산란선 차폐시트 여러 장을, 조사야를 제외한 인체부위에 덮어, 조사야 외 인체부위로 향하는 산란선을 차폐하는 상태를 나타낸 도면이다.
도 3은 본 발명의 제2실시예에 따른 합성고무 기반 산란선 차폐시트를 나타낸 도면이다.
도 4는 본 발명의 제3실시예에 따른 합성고무 기반 산란선 차폐시트를 나타낸 도면이다.
도 5는 도 4에 도시된 시트틀을 발췌한 도면이다.
도 6은 도 4에 도시된 합성고무 기반 산란선 차폐시트로 인체부위를 덮은 상태로, 조사야에 부착된 단위시트몸체만 시트틀에서 떼어내고, 나머지 단위시트몸체들은 조사야 외 인체부위로 향하는 산란선을 차폐하기 위해 시트틀에 부착된 상태를 나타낸 도면이다.
1 is a view showing a synthetic rubber-based scattering ray shielding sheet according to a first embodiment of the present invention. FIG. 1(a) shows a shielding sheet containing lead oxide (PbO), and FIG. 1(b) shows an oxidized shielding sheet. It represents a shielding sheet that does not contain lead (PbO).
2 is a view showing a state in which scattering rays directed toward parts of the body other than the irradiation field are shielded by covering several sheets of synthetic rubber-based scattering radiation shielding sheets according to the first embodiment of the present invention on a body part other than the irradiation field.
3 is a view showing a synthetic rubber-based scattering radiation shielding sheet according to a second embodiment of the present invention.
4 is a view showing a synthetic rubber-based scattering radiation shielding sheet according to a third embodiment of the present invention.
Figure 5 is a view taken from the sheet frame shown in Figure 4;
6 is a state in which the body part is covered with the synthetic rubber-based scattering radiation shielding sheet shown in FIG. 4, only the unit sheet body attached to the irradiation field is detached from the sheet frame, and the remaining unit sheet bodies are scattered rays directed toward the human body part outside the irradiation field. It is a drawing showing the state attached to the seat frame to shield.

이하, 본 발명의 제1실시예에 따른 합성고무 기반 산란선 차폐시트를 자세히 설명한다.Hereinafter, the synthetic rubber-based scattering radiation shielding sheet according to the first embodiment of the present invention will be described in detail.

도 1에 도시된 바와 같이, 본 발명의 제1실시예에 따른 합성고무 기반 산란선 차폐시트(10)는, 산화납이 포함된 유납차폐시트(11) 또는 산화납이 포함되지 않은 무납차폐시트(12)로 구분된다.As shown in FIG. 1, the synthetic rubber-based scattering radiation shielding sheet 10 according to the first embodiment of the present invention is a lead oxide-containing lead shielding sheet 11 or a lead-oxide-free shielding sheet. (12).

[유납차폐시트(11)][Glazed shielding sheet (11)]

도 1(a)에 도시된 유납차폐시트(11)는, 베이스, 베이스에 혼합된 유납차폐재를 포함한다.The wax shielding sheet 11 shown in FIG. 1 (a) includes a base and a wax shielding material mixed with the base.

베이스Base

베이스는 인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된다. 이러한 합성고무로는 에보나이트고무(ebonite rubber), 스티렌부타디엔고무(styrene butadien rubber), 부타디엔고무(butadiene rubber), 니트릴고무(acrylonitrile-butadiene rubber:NBR), 폴리클로로프렌고무(polychloroprene rubber), 에틸렌프로필렌고무(ethylene propylene rubber), 우레탄고무(urethane rubber), 아크릴고무(acrylic rubber), 하이파론고무(CSM) 등 다양하다.The base is made of synthetic rubber with physical properties that can be closely adhered to along the curves of the human body. These synthetic rubbers include ebonite rubber, styrene butadien rubber, butadiene rubber, acrylonitrile-butadiene rubber (NBR), polychloroprene rubber, and ethylene propylene rubber. (ethylene propylene rubber), urethane rubber, acrylic rubber, and Hypalon rubber (CSM).

유납차폐재wax shielding material

유납차폐재는, 산화납(PbO)분말을 기본으로 포함하고, 비스무트(Bi)분말 또는 황산바륨(BaSO4)분말 또는 탄산칼슘(CaCO3)분말을 포함한다.The wax shielding material basically contains lead oxide (PbO) powder, and includes bismuth (Bi) powder, barium sulfate (BaSO 4 ) powder, or calcium carbonate (CaCO 3 ) powder.

산화납은 원자번호가 높아, 높은 산란선 차폐효과를 가진다. 또한, 분말형태인 산화납은 합성고무에도 잘 혼합된다.Lead oxide has a high atomic number and has a high scattering radiation shielding effect. In addition, lead oxide in powder form is well mixed with synthetic rubber.

비스무트는 중금속이지만 독성이 거의 없고, 납과 비슷한 성질을 가져, 납을 대체하여 차폐재로 사용될 수 있다.Although bismuth is a heavy metal, it has little toxicity and has similar properties to lead, so it can be used as a shielding material replacing lead.

황산바륨은 무색의 결정으로 물에 잘 녹지 않으며, X선의 흡수력이 크고 인체에 무해하다.Barium sulfate is a colorless crystal that is insoluble in water, has high X-ray absorption, and is harmless to the human body.

탄산칼슘은 탄산이온과 칼슘이온이 만나 생성되는 흰색 물질로, 기본적인 차폐재로 사용된다.Calcium carbonate is a white substance produced by the meeting of carbonate ions and calcium ions, and is used as a basic shielding material.

제작예production example

합성고무분말 700g에 유납차폐재 300g을 혼합한다. 차폐시트 형상을 가진 금형에 혼합물을 넣고 가압한 후 꺼내서 냉각하면 유납차폐시트(11)가 만들어진다.Mix 300g of wax shielding material with 700g of synthetic rubber powder. When the mixture is put into a mold having the shape of a shielding sheet, pressurized, taken out and cooled, a wax shielding sheet 11 is made.

여기서, 유납차폐재를 구성하는 성분인 산화납(PbO)분말, 비스무트(Bi)분말, 황산바륨(BaSO4)분말, 탄산칼슘(CaCO3)분말의 비율은 요구되는 산란선 차폐 수준에 따라 적절하게 조절된다.Here, the ratio of lead oxide (PbO) powder, bismuth (Bi) powder, barium sulfate (BaSO 4 ) powder, and calcium carbonate (CaCO 3 ) powder, which are components constituting the wax shielding material, is appropriately determined according to the required level of scattering radiation shielding. It is regulated.

물론, 합성고무분말이 양과 유납차폐재의 양과, 합성고무분말과 유납차폐재의 혼합 비율도 차폐시트의 유연성과 차폐시트의 차폐성능을 고려하여 적절하게 조절될 수 있다.Of course, the amount of synthetic rubber powder, the amount of the wax shielding material, and the mixing ratio of the synthetic rubber powder and the wax shielding material may be appropriately adjusted in consideration of the flexibility of the shielding sheet and the shielding performance of the shielding sheet.

[무납차폐시트(12)][Lead-free shielding sheet (12)]

도 1(b)에 도시된 무납차폐시트(12)는, 베이스, 베이스에 혼합된 무납차폐재를 포함한다.The lead-free shielding sheet 12 shown in FIG. 1 (b) includes a base and a lead-free shielding material mixed with the base.

베이스Base

베이스는 인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된다. 합성고무의 종류는 전술한 바와 같다.The base is made of synthetic rubber with physical properties that can be closely adhered to along the curves of the human body. The type of synthetic rubber is as described above.

무납차폐재Lead-free shielding material

무납차폐재는, 산화납(PbO)분말을 전혀 포함하지 않고, 대신 황산바륨(BaSO4)분말 또는 아이오딘화 칼륨(KI)분말 또는 탄산칼슘(CaCO3)분말 또는 쉘파우더를 포함한다.The lead-free shielding material does not contain lead oxide (PbO) powder at all, but instead contains barium sulfate (BaSO 4 ) powder, potassium iodide (KI) powder, calcium carbonate (CaCO 3 ) powder, or shell powder.

황산바륨은 무색의 결정으로 물에 잘 녹지 않으며, X선의 흡수력이 크고 인체에 무해하다.Barium sulfate is a colorless crystal that is insoluble in water, has high X-ray absorption, and is harmless to the human body.

아이오딘화 칼륨은 아이오딘과 칼륨의 화합물로, 무색, 백색의 결정 분말이고 냄새가 없으며 물에 잘 녹는다.Potassium iodide is a compound of iodine and potassium. It is a colorless, white crystalline powder, odorless, and soluble in water.

탄산칼슘은 탄산이온과 칼슘이온이 만나 생성되는 흰색 물질로, 기본적인 차폐재로 사용된다.Calcium carbonate is a white substance produced by the meeting of carbonate ions and calcium ions, and is used as a basic shielding material.

쉘파우더는 버려지는 전복 껍질, 바지락 껍질, 굴 껍질 또는 이 밖의 패류로부터 얻어진다. 쉘파우더에는 탄산칼슘이 많이 포함되어 있어, 일정 수준의 방사선을 차폐할 수 있다.Shell powder is obtained from discarded abalone shells, clam shells, oyster shells, or other shellfish. Shell powder contains a lot of calcium carbonate, so it can shield a certain level of radiation.

제작예production example

합성고무분말 700g에 무납차폐재 300g을 혼합한다. 차폐시트 형상을 가진 금형에 혼합물을 넣고 가압한 후 꺼내서 냉각하면 무납차폐시트(12)가 만들어진다.Mix 300g of lead-free shielding material with 700g of synthetic rubber powder. A lead-free shielding sheet 12 is made by putting the mixture into a mold having a shielding sheet shape, pressurizing it, and then taking it out and cooling it.

여기서, 무납차폐재를 구성하는 성분인 황산바륨(BaSO4)분말, 아이오딘화 칼륨(KI)분말, 탄산칼슘(CaCO3)분말, 쉘파우더의 비율은 요구되는 산란선 차폐 수준에 따라 적절하게 조절된다.Here, the proportions of barium sulfate (BaSO 4 ) powder, potassium iodide (KI) powder, calcium carbonate (CaCO 3 ) powder, and shell powder, which are components constituting the lead-free shielding material, are appropriately adjusted according to the required level of scattering radiation shielding. do.

물론, 합성고무분말이 양과 무납차폐재의 양과, 합성고무분말과 무납차폐재의 혼합 비율도 차폐시트의 유연성과 차폐시트의 차폐성능을 고려하여 적절하게 조절될 수 있다.Of course, the amount of synthetic rubber powder, the amount of lead-free shielding material, and the mixing ratio of the synthetic rubber powder and lead-free shielding material may be appropriately adjusted in consideration of the flexibility of the shielding sheet and the shielding performance of the shielding sheet.

[합성고무 기반 산란선 차폐시트(10) 사용예][Example of use of synthetic rubber-based scattering ray shielding sheet 10]

도 2에 도시된 바와 같이, 여러 장의 합성고무 기반 산란선 차폐시트(10)로, 일반 X선촬영 등의 검사를 위한 전리 방사선이 조사되는 관심영역(산란선 조사야)을 제외한 나머지 부분에 덮여, 인체에 의해 산란되는 산란선을 차폐할 수 있다. 이때, 합성고무 기반 산란선 차폐시트(10)는 인체의 굴곡을 따라 유연하게 변형되어 인체에 밀착되므로, 합성고무 기반 산란선 차폐시트(10)와 인체(1) 사이의 공간으로 산란선이 침투하는 것을 막을 수 있다. 미 설명 도면 부호 2는 검사대다.As shown in FIG. 2, the rest of the area except for the region of interest (scattered radiation field) to which ionizing radiation for inspection such as general X-ray imaging is irradiated is covered with several sheets of synthetic rubber-based scattering ray shielding sheet 10, Scattered rays scattered by the human body can be shielded. At this time, since the synthetic rubber-based scattering radiation shielding sheet 10 flexibly deforms along the curve of the human body and adheres to the human body, scattered radiation penetrates into the space between the synthetic rubber-based scattering radiation shielding sheet 10 and the human body 1. can stop doing it. Non-explained reference numeral 2 denotes an inspection table.

한편, 도 2에 도시된 바와 같이, 방사선 감수성이 높은 갑상선 쪽(S1)이나 생식선 쪽(S2)에는 산란선 차폐 효과가 좋은 유납차폐시트(11)를 배치하고, 방사선 감수성이 낮은 옆구리 쪽(S3,S4)에는 인체에 무해한 무납차폐시트(12)를 배치하여, 산란선으로 인해 인체에 미치는 유해성과, 차폐시트의 납 성분으로 인해 인체에 미치는 유해성을 적절하게 상쇄시킬 수 있다.On the other hand, as shown in FIG. 2, a wax shielding sheet 11 having a good scattering effect shielding effect is placed on the thyroid side (S1) or gonad side (S2) with high radiation sensitivity, and on the side (S3) with low radiation sensitivity. , S4), a lead-free shielding sheet 12 harmless to the human body is disposed, so that the harmful effects to the human body due to scattering rays and the harmful effects to the human body due to the lead component of the shielding sheet can be properly offset.

이하, 본 발명의 제2실시예에 따른 합성고무 기반 산란선 차폐시트를 자세히 설명한다.Hereinafter, a synthetic rubber-based scattering ray shielding sheet according to a second embodiment of the present invention will be described in detail.

도 3에 도시된 바와 같이, 본 발명의 제2실시예에 따른 합성고무 기반 산란선 차폐시트(20)는, 제1시트층(21)과 제2시트층(22)로 구성된다.As shown in FIG. 3, the synthetic rubber-based scattering ray shielding sheet 20 according to the second embodiment of the present invention is composed of a first sheet layer 21 and a second sheet layer 22.

[제1시트층(21)][First sheet layer 21]

제1시트층(21)은 인체와 직접 접촉한다. 제1시트층(21)은 인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 제1베이스와, 제1베이스에 혼합된 무납차폐재로 구성된다. 무납차폐재의 성분은 전술하였으므로 중복 설명을 생략한다.The first sheet layer 21 is in direct contact with the human body. The first sheet layer 21 is composed of a first base made of synthetic rubber having physical properties that can be closely adhered to along the curves of the human body, and a lead-free shielding material mixed with the first base. Since the components of the lead-free shielding material have been described above, redundant description will be omitted.

[제2시트층(22)][Second sheet layer 22]

제2시트층(22)은 제1시트층(21) 위에 접착테이프 또는, 폴리머 교합용 접착제에 의해 접착된다. 제2시트층(22)은 인체와 직접 접촉하지 않는다. 제2시트층(22)은 인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 제2베이스와, 제2베이스에 혼합된 유납차폐재로 구성된다. 유납차폐재의 성분은 전술하였으므로 중복 설명을 생략한다.The second sheet layer 22 is adhered to the first sheet layer 21 by means of an adhesive tape or a polymeric adhesive. The second sheet layer 22 does not directly contact the human body. The second sheet layer 22 is composed of a second base made of synthetic rubber having physical properties that can be closely adhered to along the curves of the human body, and a wax shielding material mixed with the second base. Since the components of the wax shielding material have been described above, redundant descriptions will be omitted.

[제2실시예에 따른 차폐시트(30) 사용시 이점][Advantages of using the shielding sheet 30 according to the second embodiment]

제2실시예에 따른 차폐시트(20)를 사용하면, 납 성분이 없어 인체에 무해한 제1시트층(21)을 인체 위에 놓고, 납 성분이 있어 산란선 차폐가 높은 제2시트층(22)을 위로 향하게 한 상태에서, 진단용 전리 방사선을 이용한 검사를 할 수 있다. 따라서, 산란선으로 인해 인체에 미치는 유해성과, 차폐시트의 납 성분으로 인해 인체에 미치는 유해성을 모두 없앨 수 있다.When the shielding sheet 20 according to the second embodiment is used, the first sheet layer 21, which is harmless to the human body because it does not contain lead, is placed on the human body, and the second sheet layer 22, which has a high shielding of scattered rays due to the lead component In the state of facing upward, examination using ionizing radiation for diagnosis can be performed. Therefore, it is possible to eliminate both the harmful effects to the human body due to scattered rays and the harmful effects to the human body due to the lead component of the shielding sheet.

또한, 제1실시예와 같이, 유납차폐시트(11)와 무납차폐시트(12)를 따로 만들어, 방사선 감수성에 따라 유납차폐시트(11)와 무납차폐시트(12)를 배치할 필요도 없다.In addition, as in the first embodiment, there is no need to separately make the lead shielding sheet 11 and the lead-free shielding sheet 12 and arrange the lead-free shielding sheet 11 and the lead-free shielding sheet 12 according to radiation sensitivity.

이하, 본 발명의 제3실시예에 따른 합성고무 기반 산란선 차폐시트를 자세히 설명한다.Hereinafter, a synthetic rubber-based scattering ray shielding sheet according to a third embodiment of the present invention will be described in detail.

도 4에 도시된 바와 같이, 본 발명의 제3실시예에 따른 합성고무 기반 산란선 차폐시트(30)는, 시트틀(31)과 단위시트몸체들(A,B,C,D,E,F,G,H,I)로 구성된다.As shown in FIG. 4, the synthetic rubber-based scattering radiation shielding sheet 30 according to the third embodiment of the present invention includes a seat frame 31 and unit sheet bodies A, B, C, D, E, It consists of F, G, H, I).

[시트틀(31)][Seat frame (31)]

도 5에 도시된 바와 같이, 시트틀(31)은 벨크로(일명 “찍찍이 테이프”)로 제조된다. 시트틀(31)에는 구획된 복수개의 산란선 통과공들(a,b,c,d,e,f,g,h,i)이 형성된다. 시트틀(31)은 좁은 폭과 두께를 가진 띠 형상의 유연한 벨크로로 제작되어, 인체의 굴곡을 따라 밀착될 수 있다.As shown in FIG. 5 , the seat frame 31 is made of Velcro (also known as “sticky tape”). The seat frame 31 is formed with a plurality of partitioned scattering line passing holes (a, b, c, d, e, f, g, h, i). The seat frame 31 is made of a band-shaped flexible Velcro having a narrow width and thickness, and can be closely adhered to along the curves of the human body.

[단위시트몸체들(A,B,C,D,E,F,G,H,I)][Unit sheet bodies (A, B, C, D, E, F, G, H, I)]

단위시트몸체들(A,B,C,D,E,F,G,H,I) 각각에는 그 하면 테두리를 따라 벨크로(V)가 부착된다. 단위시트몸체들(A,B,C,D,E,F,G,H,I) 각각은, 대응되는 각자의 산란선 통과공들(a,b,c,d,e,f,g,h,i)의 상면에 탈부착된다.Velcro (V) is attached to each of the unit sheet bodies (A, B, C, D, E, F, G, H, I) along the bottom edge. Each of the unit sheet bodies (A, B, C, D, E, F, G, H, I) has corresponding scattering line passing holes (a, b, c, d, e, f, g, It is attached to and detached from the upper surface of h,i).

Type 1Type 1

단위시트몸체들(A,B,C,D,E,F,G,H,I) 각각은, 산화납이 포함된 유납차폐시트로 구성된다. 유납차폐시트의 구성 및 성분은 제1실시예에서 설명한 유납차폐시트(11)와 구성 및 성분이 동일하므로, 중복 설명을 생략한다.Each of the unit sheet bodies A, B, C, D, E, F, G, H, and I is composed of a lead oxide shielding sheet. Since the composition and components of the waxed shielding sheet are the same as those of the waxed shielding sheet 11 described in the first embodiment, redundant description will be omitted.

Type 2Type 2

단위시트몸체들(A,B,C,D,E,F,G,H,I) 각각은, 산화납이 포함되지 않은 무납차폐시트로 구성된다. 무납차폐시트의 구성 및 성분은 제1실시예에서 설명한 무납차폐시트(12)와 구성 및 성분이 동일하므로, 중복 설명을 생략한다.Each of the unit sheet bodies A, B, C, D, E, F, G, H, and I is composed of a lead-free shielding sheet that does not contain lead oxide. Since the composition and components of the lead-free shielding sheet are the same as those of the lead-free shielding sheet 12 described in the first embodiment, redundant description will be omitted.

Type 3Type 3

단위시트몸체들(A,B,C,D,E,F,G,H,I) 중 일부는 산화납이 포함된 유납차폐시트로 구성되고 나머지는 산화납이 포함되지 않은 무납차폐시트로 구성된다. 유납차폐시트 및 무납차폐시트의 구성 및 성분은, 제1실시예에서 설명한 유납차폐시트(11) 및 무납차폐시트(12)의 구성 및 성분이 동일하므로, 중복 설명을 생략한다.Some of the unit sheet bodies (A, B, C, D, E, F, G, H, I) are composed of lead oxide-containing lead shielding sheets and the rest are composed of lead-free shielding sheets that do not contain lead oxide. do. Since the composition and components of the leaded shielding sheet and the lead-free shielding sheet are the same as those of the leaded shielding sheet 11 and the lead-free shielding sheet 12 described in the first embodiment, duplicate descriptions are omitted.

이하, 본 Type 3의 사용예를 설명한다.Hereinafter, an example of using Type 3 will be described.

유납차폐시트로 단위시트몸체들(B,H)을 구성하고, 무납차폐시트로 단위시트몸체들(A,C,D,F,G,I)을 구성한다.The unit sheet bodies (B, H) are composed of lead shielding sheets, and the unit sheet bodies (A, C, D, F, G, and I) are composed of lead-free shielding sheets.

도 6에 도시된 바와 같이, 방사선 감수성이 높은 갑상선 쪽에는 유납차폐시트로 구성된 단위시트몸체(B)를 배치하고, 방사선 감수성이 높은 생식선 쪽에 유납차폐시트로 구성된 단위시트몸체(H)를 배치한다.As shown in FIG. 6, a unit sheet body (B) composed of a wax shielding sheet is placed on the thyroid side with high radiation sensitivity, and a unit sheet body (H) composed of a wax shielding sheet is placed on the gonad side with high radiation sensitivity. .

방사선 감수성이 낮은 나머지 쪽(어깨, 옆구리, 어깨, 골반)에는, 무납차폐시트로 구성된 단위시트몸체들(A,C,D,F,G,I)을 배치한다.Unit sheet bodies (A, C, D, F, G, I) composed of lead-free shielding sheets are disposed on the other side (shoulder, side, shoulder, pelvis) with low radiation sensitivity.

이로 인해, 산란선으로 인해 인체에 미치는 유해성과, 차폐시트의 납 성분으로 인해 인체에 미치는 유해성을 적절하게 상쇄시킬 수 있다.Due to this, it is possible to appropriately offset the harmful effects to the human body due to scattered rays and the harmful effects to the human body due to the lead component of the shielding sheet.

Type 4Type 4

단위시트몸체들(A,B,C,D,E,F,G,H,I) 각각은, 인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 제1베이스와, 제1베이스에 혼합된 무납차폐재로 구성되며, 인체와 직접 접촉하는 제1시트층; 및 제1시트층 위에 접착되며, 인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 제2베이스와, 제2베이스에 혼합된 유납차폐재로 구성된 제2시트층으로 구성된다. 여기서, 제1시트층 및 제2시트층의 구성 및 성분은 제2실시예에서 설명한 제1시트층(21) 및 제2시트층(22)의 구성 및 성분과 동일하므로, 중복 설명을 생략한다.Each of the unit sheet bodies (A, B, C, D, E, F, G, H, I) includes a first base made of synthetic rubber having physical properties that can be closely adhered to along the curves of the human body, and a first base A first sheet layer made of a lead-free shielding material mixed with and in direct contact with the human body; and a second base composed of synthetic rubber adhered on the first sheet layer and having physical properties capable of adhering to the curves of the human body, and a second sheet layer composed of a wax shielding material mixed with the second base. Here, the composition and components of the first sheet layer and the second sheet layer are the same as those of the first sheet layer 21 and the second sheet layer 22 described in the second embodiment, and thus duplicate descriptions will be omitted. .

이하, 본 Type 4의 사용예를 설명한다.Hereinafter, a usage example of this Type 4 will be described.

납 성분이 없어 인체에 무해한 제1시트층을 인체 위에 놓고, 납 성분이 있어 산란선 차폐가 높은 제2시트층을 위로 향하게 한 상태에서, 진단용 전리 방사선을 이용한 검사를 할 수 있다. 따라서, 산란선으로 인해 인체에 미치는 유해성과, 차폐시트의 납 성분으로 인해 인체에 미치는 유해성을 모두 없앨 수 있다.A test using ionizing radiation for diagnosis can be performed in a state in which the first sheet layer, which is harmless to the human body without lead, is placed on the human body, and the second sheet layer, which has lead and has high scattering radiation shielding, faces upward. Therefore, it is possible to eliminate both the harmful effects to the human body due to scattered rays and the harmful effects to the human body due to the lead component of the shielding sheet.

[제3실시예에 따른 차폐시트(30) 사용시 이점][Advantages of using the shielding sheet 30 according to the third embodiment]

제3실시예에 따른 합성고무 기반 산란선 차폐시트(30)를 사용하면, 도 6에 도시된 바와 같이, 진단용 전리 방사선을 이용한 검사를 하기 전에, 산란선이 조사되는 영역에 부착된 단위시트몸체(E)만 떼어 내면 된다.When the synthetic rubber-based scattering radiation shielding sheet 30 according to the third embodiment is used, as shown in FIG. 6, before examination using ionizing radiation for diagnosis, the unit sheet body attached to the area to which scattered radiation is irradiated (E) only needs to be removed.

따라서, 본 발명의 제1실시예 및 제2실시예와 같이, 여러 장의 합성고무 기반 산란선 차폐시트(10,20)를 준비해야 하는 불편과, 조사야 외 영역을 여러 장의 합성고무 기반 산란선 차폐시트(10,20)로 덮는 수고를 덜 수 있다.Therefore, as in the first and second embodiments of the present invention, the inconvenience of preparing several sheets of synthetic rubber-based scattering radiation shielding sheets 10 and 20, and the inconvenience of preparing several sheets of synthetic rubber-based scattering radiation shielding for the area outside the irradiation field, as in the first and second embodiments of the present invention The trouble of covering with the sheets 10 and 20 can be saved.

10,20,30: 합성고무 기반 산란선 차폐시트
21: 제1시트층 22: 제2시트층
31: 시트틀 A,B,C,D,E,F,G,H,I: 단위시트몸체
a,b,c,d,e,f,g,h,i: 산란선 통과공
10,20,30: Synthetic rubber-based scattering ray shielding sheet
21: first sheet layer 22: second sheet layer
31: seat frame A, B, C, D, E, F, G, H, I: unit seat body
a,b,c,d,e,f,g,h,i: Scattering line through hole

Claims (5)

삭제delete 인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 제1베이스와, 상기 제1베이스에 혼합된 무납차폐재로 구성되며, 인체와 직접 접촉하는 제1시트층; 및
상기 제1시트층 위에 접착되며, 인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 제2베이스와, 상기 제2베이스에 혼합된 유납차폐재로 구성된 제2시트층으로 구성되며,
상기 유납차폐재는, 산화납(PbO)분말을 기본으로 포함하고, 비스무트(Bi)분말 또는 황산바륨(BaSO4)분말 또는 탄산칼슘(CaCO3)분말을 포함하며,
상기 무납차폐재는, 산화납(PbO)분말을 포함하지 않고, 황산바륨(BaSO4)분말 또는 아이오딘화 칼륨(KI)분말 또는 탄산칼슘(CaCO3)분말 또는 쉘파우더를 포함하는 것을 특징으로 하는 합성고무 기반 산란선 차폐시트.
A first sheet layer composed of a first base composed of synthetic rubber having physical properties capable of being closely adhered to along the curves of the human body and a lead-free shielding material mixed with the first base, and in direct contact with the human body; and
It consists of a second base composed of synthetic rubber adhered on the first sheet layer and having physical properties that can adhere along the curves of the human body, and a second sheet layer composed of a wax shielding material mixed with the second base,
The wax shielding material basically includes lead oxide (PbO) powder, and includes bismuth (Bi) powder, barium sulfate (BaSO 4 ) powder, or calcium carbonate (CaCO 3 ) powder,
The lead-free shielding material does not contain lead oxide (PbO) powder, but includes barium sulfate (BaSO 4 ) powder, potassium iodide (KI) powder, calcium carbonate (CaCO 3 ) powder, or shell powder. Synthetic rubber-based scattering ray shielding sheet.
삭제delete 구획된 복수개의 산란선 통과공들이 형성된, 벨크로로 제조된 시트틀; 및
상기 복수개의 산란선 통과공 각각에 탈부착되는, 벨크로가 부착된 단위시트몸체들을 포함되며,
상기 단위시트몸체들 각각은,
인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 제1베이스와, 상기 제1베이스 상에 혼합된 무납차폐재로 구성되며, 인체와 직접 접촉하는 제1시트층; 및
상기 제1시트층 위에 접착되며, 인체의 굴곡을 따라 밀착될 수 있는 물성을 가진 합성고무로 구성된 제2베이스와, 상기 제2베이스 상에 혼합된 유납차폐재로 구성된 제2시트층으로 구성되며,
상기 유납차폐재는, 산화납(PbO)분말을 기본으로 포함하고, 비스무트(Bi)분말 또는 황산바륨(BaSO4)분말 또는 탄산칼슘(CaCO3)분말을 포함하며,
상기 무납차폐재는, 황산바륨(BaSO4)분말 또는 아이오딘화 칼륨(KI)분말 또는 탄산칼슘(CaCO3)분말 또는 쉘파우더를 포함하는 것을 특징으로 하는 합성고무 기반 산란선 차폐시트.
a seat frame made of Velcro and formed with a plurality of partitioned scattering line passage holes; and
It includes unit sheet bodies attached with Velcro that are detachable from each of the plurality of scattering line passage holes,
Each of the unit sheet bodies,
A first sheet layer composed of a first base composed of synthetic rubber having physical properties capable of being closely adhered to along the curves of the human body and a lead-free shielding material mixed on the first base and in direct contact with the human body; and
It consists of a second base composed of synthetic rubber adhered on the first sheet layer and having physical properties that can adhere along the curves of the human body, and a second sheet layer composed of a wax shielding material mixed on the second base,
The wax shielding material basically includes lead oxide (PbO) powder, and includes bismuth (Bi) powder, barium sulfate (BaSO 4 ) powder, or calcium carbonate (CaCO 3 ) powder,
The lead-free shielding material comprises barium sulfate (BaSO 4 ) powder, potassium iodide (KI) powder, calcium carbonate (CaCO 3 ) powder, or shell powder.
제2항 또는 제4항에 있어서,
상기 합성고무는, 에보나이트고무(ebonite rubber), 스티렌부타디엔고무(styrene butadien rubber), 부타디엔고무(butadiene rubber), 니트릴고무(acrylonitrile-butadiene rubber:NBR), 폴리클로로프렌고무(polychloroprene rubber), 에틸렌프로필렌고무(ethylene propylene rubber), 우레탄고무(urethane rubber), 아크릴고무(acrylic rubber), 하이파론고무(CSM) 중 어느 하나인 것을 특징으로 하는 합성고무 기반 산란선 차폐시트.
According to claim 2 or 4,
The synthetic rubber includes ebonite rubber, styrene butadien rubber, butadiene rubber, acrylonitrile-butadiene rubber (NBR), polychloroprene rubber, and ethylene propylene rubber. (Ethylene propylene rubber), urethane rubber (urethane rubber), acrylic rubber (acrylic rubber), synthetic rubber-based scattering ray shielding sheet, characterized in that any one of Hypalon rubber (CSM).
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170002683U (en) * 2016-01-19 2017-07-27 주식회사바텍 Radiation shield clothes
JP2017206645A (en) * 2016-05-20 2017-11-24 株式会社ツーワン Rubber composition excellent in radiation shielding property and flexibility
KR101953363B1 (en) 2018-07-25 2019-02-28 장서구 Radiation shielding material and method for making the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170002683U (en) * 2016-01-19 2017-07-27 주식회사바텍 Radiation shield clothes
JP2017206645A (en) * 2016-05-20 2017-11-24 株式会社ツーワン Rubber composition excellent in radiation shielding property and flexibility
KR101953363B1 (en) 2018-07-25 2019-02-28 장서구 Radiation shielding material and method for making the same

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