EP0242294B1 - Röntgen-Strahlenschutzmaterial - Google Patents

Röntgen-Strahlenschutzmaterial Download PDF

Info

Publication number
EP0242294B1
EP0242294B1 EP19870400849 EP87400849A EP0242294B1 EP 0242294 B1 EP0242294 B1 EP 0242294B1 EP 19870400849 EP19870400849 EP 19870400849 EP 87400849 A EP87400849 A EP 87400849A EP 0242294 B1 EP0242294 B1 EP 0242294B1
Authority
EP
European Patent Office
Prior art keywords
metal
powder
mixture
rays
material according
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.)
Expired - Lifetime
Application number
EP19870400849
Other languages
English (en)
French (fr)
Other versions
EP0242294A1 (de
Inventor
Yves Valy
Jean Bourcereau
Jean Sainte Luce Banchelin
Michel Puech
Jean Duphil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Group SAS
Original Assignee
Airbus Group SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Airbus Group SAS filed Critical Airbus Group SAS
Publication of EP0242294A1 publication Critical patent/EP0242294A1/de
Application granted granted Critical
Publication of EP0242294B1 publication Critical patent/EP0242294B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G21F1/00—Shielding characterised by the composition of the materials
    • G21F1/02—Selection of uniform shielding materials
    • G21F1/10—Organic substances; Dispersions in organic carriers
    • G21F1/103—Dispersions in organic carriers
    • G21F1/106—Dispersions in organic carriers metallic dispersions

Definitions

  • the X-ray protective metal sheet cannot be placed directly against the totality of the external faces of the device because of the often complex profile of this one.
  • this profile complexity is often imposed by heat dissipation constraints.
  • materials for protection against ⁇ and neutron radiation formed from a plastic or rubberized material containing powder of a salt of lead, tungsten, barium, cadmium, bismuth or tin of a saturated fatty acid. These materials are notably described in document FR-A-2 027 514 filed in the name of F. MARYEN.
  • the amount of powder in the binder can be up to 50% by volume of the finished X-ray protection material. As with particle size, the higher the amount of powder, the more effective the protection. However, an amount of powder greater than 50% by volume is contrary to good mechanical strength of the material and good homogeneity of the latter. Furthermore, the minimum quantity of powder allowing effective protection against X-rays is 25% by volume of the finished protective material.
  • These mixture granules are in particular introduced into a mold containing a box, intended to contain electronic circuits and to be protected against X-rays.
  • the thickness of the protective coating depends on the efficiency of the desired X-ray filtering and the energy spectrum of these rays can be adapted in each case. However, a thickness of 1.5 mm may be sufficient in the majority of cases.
  • a similar material can be obtained by replacing the DINYL resin with the HYTREL resin from DUPONT de NEMOURS, the latter being a polyether blocker (thermoplastic).
  • the resin matrix of the protective material according to the invention is a thermoplastic resin
  • the material will be mainly used as a coating material; it may cover a rigid housing or a flat or curved panel made of plastic or metal, an electrical conductor or an optical conductor of plastic or glass.
  • the resin used must have a coefficient of expansion compatible with that of the material constituting the surface to be covered.
  • a protective material according to the invention this can be produced directly in the form of a housing or a protective panel, rigid or flexible depending on the resin used.
  • the invention applies when minimum mass conditions are required.
  • the material according to the invention allows filtering efficiency equivalent to that of a sheet of solid material, a gain in mass, size and a reduction in manufacturing costs.
  • the material according to the invention can be used advantageously to protect the electronic devices on board an aircraft.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • X-Ray Techniques (AREA)

Claims (9)

  1. Material zum Schutz gegen Röntgenstrahlen, dadurch gekennzeichnet, daß es im wesentlichen besteht aus einer Harzmatrix, die ein Gemisch (a) von Metallen mit der Atomzahl von mindestens 47 oder ein Gemisch (b) aus mindestens einem Metall mit der Atomzahl von mindestens 47 und mindestens einer anorganischen Verbindung eines Metalls mit der Atomzahl von mindestens 47 in Form eines gleichmäßig dispergierten Pulvers enthält, das erst bei einer Temperatur von mindestens 630°C schmilzt.
  2. Material nach Anspruch 1, dadurch gekennzeichnet, daß das Gemisch (a) von Metallen mindestens zwei Metalle umfaßt, die komplementäre Röntgenstrahlenabsorptionsspektren aufweisen.
  3. Material nach Anspruch 1, dadurch gekennzeichnet, daß das Metall und die organische Verbindung des Gemisches (b) komplementäre Röntgenstrahlenabsorptionsspektren aufweisen.
  4. Material nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Pulver 25 bis SO Vol.-% des Materials darstellt.
  5. Material nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Pulver eine Korngröße in dem Bereich von 0,5 bis 25 µm hat.
  6. Material nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Pulver eine Korngröße in dem Bereich von 1,6 bis 10 µm hat.
  7. Material nach Anspruch 1, dadurch gekennzeichnet, daß das Metall ausgewählt wird aus Silber, Tantal, Wolfram, Barium, Hafnium und Uran.
  8. Material nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die anorganische Verbindung ausgewählt wird aus einem Oxid, einem Nitrid und einem Carbid.
  9. Material nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Pulver besteht aus einem Gemisch von Barium und Hafnium, einem Gemisch von Wolfram und Uranoxid, einem Gemisch von Tantal und Uranoxid oder einem Gemisch von Wolfram und Tantal.
EP19870400849 1986-04-16 1987-04-14 Röntgen-Strahlenschutzmaterial Expired - Lifetime EP0242294B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8605441 1986-04-16
FR8605441A FR2597651B1 (fr) 1986-04-16 1986-04-16 Materiau de protection contre les rayons x et procedes de fabrication de ce materiau

Publications (2)

Publication Number Publication Date
EP0242294A1 EP0242294A1 (de) 1987-10-21
EP0242294B1 true EP0242294B1 (de) 1991-06-19

Family

ID=9334292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870400849 Expired - Lifetime EP0242294B1 (de) 1986-04-16 1987-04-14 Röntgen-Strahlenschutzmaterial

Country Status (6)

Country Link
EP (1) EP0242294B1 (de)
JP (1) JPS62250399A (de)
CA (1) CA1298698C (de)
DE (1) DE3770857D1 (de)
ES (1) ES2023425B3 (de)
FR (1) FR2597651B1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8827531D0 (en) * 1988-11-25 1988-12-29 Du Pont Canada Highly filled compositions
GB8827529D0 (en) * 1988-11-25 1988-12-29 Du Pont Canada Radiation protection material
JPH06511315A (ja) * 1991-07-16 1994-12-15 スミス アンド ネフュー ピーエルシー 放射線保護手袋
GB9300564D0 (en) * 1993-01-12 1993-03-03 Smith & Nephew Protective articles
RU2138865C1 (ru) * 1995-06-29 1999-09-27 Российский Федеральный Ядерный Центр - Всероссийский Научно-Исследовательский Институт Экспериментальной Физики Рентгенозащитная композиция
FR2755440B1 (fr) * 1996-11-07 1999-01-15 Tuffet Sophie Procede de conservation de longue duree de molecules d'adn et conditionnement pour sa mise en oeuvre
IL139465A0 (en) * 1998-05-06 2001-11-25 Method for prolonged storage of dna molecules and packaging implementing said method
UA59493C2 (uk) * 2001-12-26 2003-09-15 Юрій Сергійович Алексеєв Радіаційнозахисний матеріал
UA64033C2 (en) * 2002-03-06 2004-02-16 Yurii Sergiiovych Aleksieiev Composite material for radiation protection and the method for producing the material
RU2294030C2 (ru) * 2002-10-02 2007-02-20 Российский федеральный ядерный центр - Всероссийский научно-исследовательский институт экспериментальной физики - РФЯЦ ВНИИЭФ Рентгенозащитная композиция
WO2004051670A1 (fr) * 2002-12-03 2004-06-17 Yuri Sergeyevich Alexeyev Materiau composite de protection contre le rayonnement et procede de production de ce dernier (2 variantes)
RU2326905C2 (ru) * 2006-01-10 2008-06-20 Федеральное государственное унитарное предприятие "Комбинат "Электрохимприбор" Полимерная композиция
RU2325998C2 (ru) * 2006-01-10 2008-06-10 Федеральное государственное унитарное предприятие "Комбинат "Электрохимприбор" Способ изготовления крупногабаритных толстостенных деталей
RU2415485C1 (ru) * 2009-06-30 2011-03-27 Открытое Акционерное Общество "Государственный Ракетный Центр Имени Академика В.П. Макеева" Рентгенозащитная композиция
FR2969016B1 (fr) * 2010-12-21 2013-02-08 Commissariat Energie Atomique Agencement pour le moulage d'un melange a base de poudre metallique autour d'un noyau ceramique
US20230386690A1 (en) * 2022-05-24 2023-11-30 Stark Street Materials Company Silicon enhanced ionizing radiation shielding and its method of manufacture

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE639424A (de) *
BE553665A (de) * 1955-12-23
US3114721A (en) * 1961-01-23 1963-12-17 Gen Electric Radiation shielding compositions
FR2212613B1 (de) * 1972-12-28 1975-09-12 Flaugnatti Richard
GB2007480A (en) * 1977-10-20 1979-05-16 Lintoff Eng Ltd Radiation shielding
FR2439460A1 (fr) * 1978-10-19 1980-05-16 Serole Michelle Materiau de protection radiologique a haut coefficient d'attenuation
FR2570001B1 (fr) * 1984-09-07 1987-04-03 Tech Milieu Ionisant Procede de depot d'un materiau constitue en majeure partie par un metal, un alliage, du bore et/ou une substance ceramique, utilisable pour la realisation de blindages ou d'ecrans biologiques

Also Published As

Publication number Publication date
EP0242294A1 (de) 1987-10-21
DE3770857D1 (de) 1991-07-25
FR2597651B1 (fr) 1989-12-08
ES2023425B3 (es) 1992-01-16
JPS62250399A (ja) 1987-10-31
CA1298698C (en) 1992-04-14
FR2597651A1 (fr) 1987-10-23

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