LT6292B - Radiation protecting material composition, screen for radiation protection and method of making the same - Google Patents

Abstract

This invention is related to protection of radiation and is designed to the production of transparent screen protecting, eg. medical personnel from the scattered X-ray radiation and having a diffractive optical element by themselve projecting warning signal about the radiological danger towards maximum radiological danger produced by the digital holographic method. According this invention a hollow sealed container of rectangular parallelepiped shape or other shape having two opposite parallel walls is produced from the transparent unbreakable material. The inner cavity of container is filled with optically transparent gel composed of composition of high water-soluble tungsten compound and a water-soluble polymer polyacrylamide and having high resolution X-ray absorbing ability. Transparent diffractive optical element, produced by the digital holographic method, illuminated by dot light source and projecting warning signal about the radiological danger towards maximum radiological danger is formed on the transparent plastic surface of outher container by embossing.

Description

FIELD OF THE INVENTION The present invention relates to radiological protection and is directed to a transparent screen that protects, for example, medical personnel from diffuse X-ray diffraction and having a digital holographic diffraction optical element designed to produce a radiological hazard alert for maximum radiological hazard. Such screens are a mandatory protective tool in X-ray diagnostics, and in particular in interventional radiology [NCRP Report 147. Structural Shielding Design for Medical X-Ray Imaging Facilities (2004); Cousins C, Miller DL, Bernardi G, et al. ICRP publication 120: Radiological protection in cardiology.Ann ICRP 2013 Feb; 42 (1): 1-125]

BACKGROUND OF THE INVENTION Known anti-X-ray devices are generally manufactured using lead-containing materials. Protective radiological agents may be used either by insertion or placement on exposed persons [US5844246, VV02006015695, etc.], including the protection of its visual organs [US6309065, etc.], as well as transparent screens of glass or plastic containing lead or lead compounds or polymeric compositions with, for example, barium sulfate (BaSO) 4 filler [VV02008076469 et al.].

It is known that lead acrylic glass, eg. Premac®, which is used for the production of commercial radiation shields and contains 30% m / m of lead, the salts of which are chemically inserted into the acrylic copolymer resin, has a refractive index of 1.54. Lead acrylic glasses have 80-88% optical transparent visible light, and 0.5 mm equivalent lead thickness is equivalent to a 12 mm thick acrylic sheet that can block up to 90% of diffused X-ray. [Mobile X-ray Screen, AMS-076995, httD: //www.amravradiationprotection.com or Upper body shield, Mavig-PT6290 / 6272, http://www.wtec.pt/demo/mavia/Dorteara2svstems.pdf1. having X-ray absorption properties analyzed by K.A. Fetterly, D.J. Magnuson, G. M. Tannahill, et al. Effective Ace of Radiation Shields to Minimize Operator Dose During Invasive Cardiology Procedures. JACC: Cardiovascular interventions, 2011.4 (10) p. 133-1139]. Lead and its compounds, as well as materials containing lead and its compounds, are difficult to recover and, in the case of long-term contact, cause toxic effects on many human organs, especially the nervous system. Due to the high toxicity, it is proposed to ban or restrict the use of lead and its compounds in medical devices [EC Directive 2011/65 / EU, RoHS II (7)].

Unleaded polymer compositions are known to inhibit X-rays.

In the above-mentioned invention VV02008076469 describes optically transparent, X-ray-inhibiting, lead-free polymer compositions containing from 5 to 10% (by weight) of fine-grained barium sulphate BaS04, and a method for their production. The optical transparency of such a composition is determined by the same refractive indices (from 1.6 to about 1.66) of organic polymers containing sulfur fragments (polysulfones, polyethersulfones and polycarbonate copolymers) and annealed barium sulphate. For this, the barium sulphate is first annealed at different temperatures when the corresponding temperature is reached evenly at 10 ° C / min. The annealed barium sulphate, naturally cooled to room temperature, is ground. The ground barium sulphate is sieved and the collected 60 and less micrometer barium sulphate powder particles are dispensed into the extruder with the molten polysulfon resin. The granules formed from the (homogenized) composition blended in the studio are placed in an injection-molding machine, whereby, after re-melting at 320-355 ° C, sheets of 1, 2 and 3 mm thickness, of different transparency and maturity are formed, which differently inhibit Reng's radius. For example, polymer compositions of this type containing 10% (by weight) of fine-grained barium sulphate BaS04 filler sheet have a 3 mm thick sheet which reduces (up to 25%) the intensity of X-rays perpendicular to it, but is completely opaque. Meanwhile, compositions produced in this manner, containing up to 5% (by weight) of annealed fine-grained barium sulphate filler, have a 2 mm thick sheet sufficiently optically transparent (about 80% optical brightness, haze is about 40%), but only very little reduces the intensity of X-rays falling to it (up to 5%). A major drawback of the production of such compositions is that both high energy consumption is required for both the annealing of the filler (barium sulphate) and the mixing of the composition in the extruder, as well as its high temperature processes.

Completely opaque, but efficiently, X-ray-absorbing, lead-free polymer composites are obtained by mixing metallic tungsten micrometric particles (powder) with thermoplastic polyamide resin. WO0244277 discloses a polymeric composite anti-radiation protection and a method for its production in which the polyamide resin (nylon-6, nylon-66 or nylon-12) is mixed with 94 to 97% (w / w) metal tungsten or its alloy W-6Ni. 4Cu powder with an average particle size of about 13 micrometers. For the tungsten or its alloy W-6Ni-4Cu powder microparticles to be dispersed and bonded with polyamide resins more easily, the tungsten or its alloy W-6Ni-4Cu powder is first treated with Y- (2-aminoethyl) aminopropyltriethoxysilane and heated to 120 ° C. temperature. It has been found that the efficiency of X-rays absorption depends on the thickness of the composite layer and is 28-30% (6 mm thick), 48-49% (thickness 12 mm) and 62-64 % (18 mm thick).

Japanese Patent JPH10153687 (US5908884 (A)) describes compositions based on rubber for radiation protection. They are obtained by mixing fluorinated rubber dispersions in an open ball mill with 60 to 95% (w / w) metal tungsten microparticles with dimensions ranging from 4 to 100 micrometers and 5 to 40% (w / w) tungsten microparticles of less than 4 micrometers . By compression, the absorption coefficient of the cast and vulcanized 1 mm thick rubber sheets (γ-rays) of said different composition dispersions (compositions) varies from 0.7 to 1.2 cm -1 when the γ-radiation energy is 1.5MeV. In addition, vulcanised fluorinated rubber and tungsten powder composites have good thermal and chemical resistance, but are completely opaque.

International Application W02010145081 discloses an X-ray absorbing unleaded polymer composite comprising 5-10% (w / w) plastic as a binding agent, 2-30% (w / w) of rare earth organic complex compounds (unsaturated carboxylic acid salts of these metals), 2 -50% (by weight) of inorganic rare earth compounds, 2-50% by weight of tin or its inorganic compounds (oxide, chloride, sulfide, fluoride), 2-55% by weight of bismuth or its inorganic compounds (oxide, sulfide) ), 2-23% (w / w) bismuth organic complex compound (bismuth unsaturated carboxylic acid salts), 2-26% (w / w) tungsten or inorganic compounds (carbide, halide, tungsten), 0.2-3% (w / w) plasticizer , 0.1-0.3% (w / w) antioxidant, 0.05-0.3% (w / w) sialan as binder, and 0.02-0.1% (w / w) polymerization reaction in-situ initiator. Here, even the 16th rare earth metal (with the exception of radioactive prometry and actinides) is mentioned. Inorganic compounds of these rare earth metals such as oxides, halides, sulphides, carbonates, hydrides, hydroxides are used.

International Application VV020060906299 discloses X-ray shielding unleaded composites and the method of manufacturing sheets thereof, wherein the powder filler of 90% by weight of shielding properties is added to the organic polymer (polyurethane resin with plasticizer). Depending on the size of the material and its powder particles, the fillers of the different materials comprise from 40 to 80% by volume of the respective polymer compositions. The polymer compositions described in the patent for such X-ray shielding agent fillers include single Ce, La, W, Sn, CeO2, La203, Pr203, Nd2U3, S1TI2O3, EU2O3, and Gd203 powder or powder mixtures of some of these materials having a particle size varying from 1 up to 20 micrometers. Compositions produced from said materials and polyurethane resin with a 1% (w / w) plasticizer additive have been intensively blended for 0.5 to 2 hours, and 1 mm thick opaque sheets have been blown away. Polymer compositions of different materials and fillers with different particle size have a thickness of 1 mm sheets of X-ray attenuation corresponding to 0.25 to 0.85 mm equivalent lead layer thickness (mmPb).

The closest proposed invention according to the composition of the anti-radiation composition may be mentioned WO0244277, wherein the lead-free composite is obtained by mixing and dispersing up to 97% by weight of tungsten or its alloy microparticles in a polyamide resin. However, the plates that are spilled from it are not transparent.

Since none of the known (including proposed) transparent radiological screenings completely (100%) block X-rays, they are often labeled with radiation warning signs. Due to the inherent properties of X-rays, this danger is greatest when viewed in the direction of a transparent protective screen parallel to the X-rays from which the screen is to be protected. Obviously, the above-mentioned security marks block the sight of objects located behind the protective screen, looking at it in the direction of parallel X-rays.

Thus, all known radiological protection measures are either opaque (not transparent) or contain toxic substances, and the signs alerting to radiological hazards block the screen through the screen and the directions of vision that are at risk of radiological danger. On the other hand, there is a known way of displaying an alert sign only in a particular direction, as described in US5963345. According to the present invention, a warning sign consisting of a hidden lamp attached to a vehicle (e.g. a school bus) and a permeability hologram are mounted at the front or rear of the vehicle. The lamp illuminates the permeability hologram, the image that is visible only in a certain predetermined corner of vision. The hologram illuminates a predetermined angle of view, such as Stop, to alert other car drivers that a hologram car such as a school bus is about to brake. The above hologram is made in such a way that it has an asymmetric field of view. The invention also describes a method of recording such a hologram. The hologram is recorded in an analogous way by letting the objective beam pass through the diffuser and blocking it with a mask passing light at the desired inscription.

There is also a known method and device for recording large format (from A5 to 1x1.5m) digital image holograms. VVO0142861 (LT4842), which significantly accelerates the production of digital holograms. According to this method, the image in the light modulator is illuminated by pixels taken from the corresponding several hundred 3D spatial images, the light modulator is illuminated by a coherent pulsed laser light, the modulated radiation is focused with a special lens having an optical blade on its outside, the light is placed in the light immediately behind the pocket. sensitive material. The light-sensitive material is illuminated by a modulated light pulse along with a non-modulated support pulse of laser radiation and a holographic diffraction element (HDE) is inserted into a small area of light sensitive material known as a holopix or hogel. By chemically or otherwise treating a photosensitive material and illuminating a so-called HDE light whose direction is the same as the direction of unmodulated laser light at the time of recording, the HDE "designs" the same image of a spatial light modulator formed from several hundred pixels taken from the respective paths in various directions of vision. hundreds of 3D spatial images so that only one pixel image is projected in each direction. Covering the entire surface of the photosensitive material with such HDEs, their totality behaves as a normal hologram - i.e. Different views are visible at different angles of view. Typically, the digital image holograms recorded in this way are reflective holograms (i.e., illuminated by the observer), but LT4842 refers to the ability to write and use the holograms in this manner.

However, in this way bandwidth holograms are produced on light sensitive materials and could be used as warning signs, only by using additional adhesive materials that degrade the hologram permeability properties and require several additional technological operations to integrate them into the radiation screen.

The object of the present invention is to improve the known radiological screens by providing sufficient radiation protection and, at the same time, a high optical fiber as filler using new, non-lead transparent materials. It would be desirable to incorporate into the screen a diffractive optical element which warns of the danger and is visible only in the direction of the greatest danger. The essence of the invention

The object of the invention is achieved by a group of inventions, namely, a composition of radiation protection material, an optically transparent screen for radiation protection containing a filler of said composition, and a method for producing an optically transparent screen for radiation protection. All the inventions mentioned by the group are united by the above-mentioned general inventive idea.

The most important object of the invention is a composition of radiation protection material containing unleaded components having shielding properties in an organic polymer. The novelty is that the unleaded component contains ammonium meta-tungsten and the composition has a percentage by weight of: polyacrylamide 0.5-1 ammonium meta-tungsten 15-70, preferably 60 remaining water, where the composition has a density of about 1.2 to 2.5 g / cm3, the X-ray attenuation coefficient is 0.52 to 3.63 cm-1, and the equivalent lead thickness of the 10 mm thick layer of the composition corresponds to 0.15-0.72 mm.

One example of a preferred embodiment of the claimed composition is a composition comprising 1% by weight of polyacrylamide and 60% by weight of ammonium meta-tungsten having a density of about 2.05 g / cm3, about 2.47 cm-1 X-ray attenuation factor, and 10 mm thick. the equivalent lead thickness of the layer is 0.61 mm.

The optically transparent screen for radiation protection according to the present invention has a filler of the aforementioned composition. This composition is filled with a transparent plastic container with parallel sides on the filling aperture, on which the surface of one of the two parallel walls is embossed with a diffractive hatchback matrix containing information about the radiation hazard sign and its direction of vision. Such a screen is characterized by a filler optical transparency of 86% to 90%, preferably 89%.

The method of producing an optically transparent screen for radiation protection includes the following steps: - on a transparent parallel side of one of the parallel walls of the plastic container, imposes a surface diffractive hogel matrix embossment containing information about the radiation hazard sign and its direction of view, - prepares a composition of said radiation protection material in the form of a gel, - the prepared gel passes the interior of said clear plastic container through the opening of the container, - the filler of the prepared composition is sonified and sealed by the container.

The anti-radiation composition is prepared as follows: a) water-swelling high molecular weight polyacrylamide by heating to 65-80 ° C, preferably up to 70 ° C, b) mixing ammonium meta-tungstate under continuous stirring, and c) continuing mixing at a temperature of about 80 ° C; until a gel is formed, which is then sonified at 50-60 ° C.

The above-mentioned anti-radiation compositions prior to cooling the gel to room temperature, once again sealed the sonicated container by sonication at 50-60 ° C prior to sealing.

On the surface of the wall of one of the largest areas of the transparent container, at least one relief of the diffractive hogel matrix containing information about the radiation hazard sign and its direction of vision is stamped before filling.

In order to obtain a diffractive hoggle matrix relief on a light-conductive material having a digital hologram hatchet electrically wires a layer, electrolytically nickel it, the nickel layer with a mirrored digital hologram surface relief is separated and stamped on a transparent container (1) by one of the largest surface wall surface thermal surfaces. way.

The combination of all these features makes it possible to produce an optically transparent polymeric screen for radiation protection of personnel without hazardous health materials and with a warning of the radiation hazard sign visible in the direction of the greatest radiation hazard. The optic transparency of the screen filler is from 86% to 90%, preferably 89%, and the X-ray attenuation coefficient is 0.52 to 3.63 cm-1.

BRIEF DESCRIPTION OF THE DRAWINGS The invention is illustrated in the drawings, which are illustrated

FIG. 1 - radiological display with several directional warning signs.

FIG. 2 - radiological display with one directional warning sign.

DETAILED DESCRIPTION OF THE INVENTION

For the production of a radiation protection composition, a high solubility water tungsten compound ammonium meta-tungstate (NH4) 6H2W2204 (AMV, solubility ~ 160g / 100g H2O at 20 ° C) and water-soluble organic polymer - polyacrylamide are used. The ammonium meta-tungstate solution, as well as the polyacrylamide condensed tungsten compound composition (gel), has a high X-ray absorbing capacity. The proportion of tungsten in ammonium meta-tungsten (NH4) 6H2Wi204o is 75%. The composition is thickened with polyacrylamide to enhance the safety of the X-ray suppressor screens to prevent unexpected leakage of the composition, e.g. sealed by mechanical damage or the like. The density of said composition (depending on the weight of ammonium meta-tungstate in the composition) is almost twice and more times (<2.5 g / cm3) than the density of optically transparent lead glass used to suppress X-ray intensity (about 4.6 g / cm 3) (http : //www.radiansa.com/radiation-shieldina/lead-alass.htm)

The optically transparent screen for radiation protection according to the present invention consists of a transparent parallel lateral plastic container 1 on which the surface of one of the two parallel walls is embossed with a diffractive hatchel matrix relief 2, the container 1 having an opening or openings for filling the composition of the invention according to the invention. The above-mentioned diffractive hoggle matrix relief 2 includes information about the radiation hazard sign and its direction of view 4, a spot light source 5, a preferred light diode, a diffractive hatchback matrix relief 2, attached to the container 1 with a radiation absorbing gel. Transparent plastic (polycarbonate, polymethylmethacrylate, polystyrene, styrene-acrylonitrile copolymer (SAN)) sheets produce a rectangular parallelepiped or other hollow sealed container with two opposing parallel walls 1.

On the outer surface of the clear plastic container 1, prior to filling the composition described above, the embossing method produces a transparent diffractive hoggle matrix relief 2 produced by digital holography, designing a radiological hazard warning in the direction of maximum radiation hazard 4, i. on the surface of the container is imprinted with a diffractive grating containing information about the radiation hazard label, the matrix of which is produced by coating a digital hologram on a light-sensitive material as a hogel matrix by vacuum-thermal evaporation, coated with 200 nm, or thicker, electrically conductive silver layer. Subsequently, the material with a digital hologram hatchet matrix coated with a silver layer is placed in a nickel electrolytic electrochemical deposition of nickel on the silver layer. The formed nickel layer is mechanically separable from the photosensitive material with the digital hologram hatchback matrix. This nickel layer, which has a hologram on its surface, is used to terminate the diffractive hatchback matrix relief 2 on the transparent container wall.

A gel of soluble tungsten compounds and a composition of organic polymers is produced as a filler for a transparent plastic container 1 of the required composition. Add the calculated volume (mass) of distilled water at room temperature to the J heat-resistant glass container (eg flask) and add the calculated mass of high molecular weight (Mr> 104) polyacrylamide (PAA). The unmixed and unheated mixture is maintained for about 0.5 h until the PAA swells in water. The mixture is then slowly mixed in a flask with a mechanical stirrer and heated to 70 ° C in a hot water bath. After reaching this temperature, the mixture is stirred for another 0.5 h. The resulting clear, viscous, and continuously stirred and heated to 80 ° C PAA gel is then added to small portions of the calculated mass (within the solubility limit at room temperature) of ammonium meta-tungstenate (NH4) 6H2Wi204o. The resulting mixture was stirred at a temperature of 80 ° C for an additional 0.5 h until complete dissolution of ammonium meta-tungstate and a homogeneous and transparent composition (gel). After switching off, the flask with the gel contained in the flask is removed from the heated water bath and placed in a thermostated ultrasonic bath filled with water heated to 50-60 ° C. The gel in the flask is sonicated for at least 15 minutes to remove the air bubbles dispersed from the gel during preparation. The pH of the composition of PAA and ammonium meta-tungstenate thus prepared is ~ 3.5.

Such a gel (gel), without being cooled to room (ambient) temperature, is filled through the orifice 3 as described above in a transparent plastic hollow container 1.

In order for the diffractive hoggle matrix relief to form an image of a radial hazard sign in space, it must be illuminated by a spot light source, which is done by attaching a spot light source 5 to the container with a radiation-absorbing gel, the desired light-emitting diode.

Separate steps of display production are illustrated by the following examples, which do not limit the scope of the invention. Example 1 - Production of a composition (gel)

In a high X-ray intensity attenuation capability composition, ammonium meta-tungstenate (NH4) 6H2Wi2O40 and polyacrylamide are first swirled in 100 ml of distilled water and dissolved in 2.5 g of nonionic polyacrylamide PAA. 150 g of ammonium meta-tungstate (NH4) 6H2Wi204o (AMV) are added to the resulting gel, heated to 80 ° C with vigorous stirring in small portions. The resulting composition comprises about 1% (w / w) of nonionic polyacrylamide and about 60% of ammonium meta-tungsten. Such a composition is abbreviated as 1PAA-60AMV. The composition, density, optical transparency, and X-ray attenuation characteristics of this composition and other analogous compositions of other compositions are given in Table 1. Table 1

Suggested compositions Characteristics of X-ray screens

From this table it can be concluded that the optimum concentration of the optically transparent screen for radiation protection is the percentage of the mixture: polyacrylamide 1, ammonium meta-tungstenate. 60, water 29. The lead equivalent is then 0.61. Less ammonium meta-tungstate concentrations do not give the required equivalent lead thickness, and the larger the screen begins to diminish the optical transparency of the screen. At 60% am.volfr. the transparency is 89%, at 70% am. the optical transparency is 86%. Example 2 - Formation of a nickel layer used for embossing a diffractive optical element on a container wall

A light (about 200 nm) electrically conductive silver layer is applied to the photosensitive material, which already has a digital hologram hatchback matrix. The material with the digital hologram hatchet matrix and the coated silver layer is placed in a nickel electrolytic, which consists of the materials in Table 2. Table 2

Composition of sulfamate nickel electrolytes

Distilled deionised water with a specific resistance R> 10 ΜΩ is used as solvent.

Electrochemical deposition of nickel on the silver layer is performed. Parameters of the precipitation process: the pH value of the electrolyte is from 3.8 to 4.2 (optimal - 4.0), the electrolyte temperature during the nickel deposition process - from 40 ° C to 60 ° C (optimal - 50 ° C). The cathode current density is changed from 1 mA / cm2 (at the beginning of the nickel precipitation process) to 3.5 mA / cm2. Anode - titanium bag filled with Ni-0.1% NiS pellets (INCO S-Nickel) and wrapped in a polypropylene fabric cover.

The formed nickel layer is mechanically separable from the photosensitive material with the digital hologram hatchback matrix. This nickel layer, which has a hologram on its surface, is used to terminate the transparent sheet of the styrene-acrylonitrile copolymer (SAN). Thermal embossing parameters: pressure - 0.3 MPa, temperature -120 ° C, pressure duration - 5 s. Advantages and Applications of the Invention

The optically transparent polymer screen for radiation protection, with no hazardous substances for health, and with a warning of the radiation hazard, visible in the direction of the highest radiation hazard, has an optical transparent (from 86% to 90%, optimally 89%) and an X-ray attenuation factor (0.52). - 3.63 cm-1), and the equivalent thickness of the lead in the 10 mm thick layer of the composition corresponds to 0.15 - 0.72 mm. It is clear to the skilled artisan that screens of this type can be used not only in medicine but also in other areas where The present invention does not limit itself to specific embodiments of the invention, but may have equivalent implementations and modifications within the scope of the invention.

Claims (8)

DEFINITION DEFINITION 1. A composition of radiation protection material containing unleaded components having shielding properties in an organic polymer, characterized in that the unleaded component is ammonium meta-tungstate (NH4) H2Wi204o and the composition is in percent by weight: polyacrylamide 0.5-1 ammonium meta-tungsten 15-70, optimally 60 is the remainder of the composition having a density of about 1.2 to 2.5 g / cm 3, the X-ray attenuation coefficient is 0.52 to 3.63 cm-1 and the equivalent lead thickness of the 10 mm thick layer of composition corresponds to 0, 15 - 0.72 mm. A radiation protection composition according to claim 1, characterized in that, in the composition, 1% by weight of polyacrylamide and 60% by weight of ammonium meta-tungstate has a density of about 2.05 g / cm3, about 2.47 cm-1 of X-ray attenuation. 10 mm thickness of this composition has an equivalent lead thickness of 0.61 mm. 3. An optically transparent screen for radiation protection having a filler composition according to claim 1 or 2, characterized in that said composition is a filled transparent parallel-side plastic container (1) on which the surface of one of the two parallel walls is embossed with a diffractive hatchback matrix relief ( 2) containing information about the radiation hazard sign and its direction of view (4), where the optical transparency of the screen filler is from 86% to 90%, preferably 89%. Method for producing an optically transparent screen for radiation protection according to claim 3, characterized in that - on one of the parallel walls of the plastic container (1) on the transparent parallel sides, a surface relief (2) of the diffractive hatching matrix containing information about the radiation hazard sign is provided; - providing a composition of said radiation protection material in the form of a gel, - filling the inside of the clear plastic container with the prepared gel through the opening (3) of the container (1), - the filler of the prepared composition is sonified and sealed by the container (1). 5. A method according to claim 4, wherein the preparation of the radiation composition according to claim 1 comprises: a) swelling in water a high molecular weight polyacrylamide by heating to 65-80 ° C, preferably up to 70 ° C, b) mixing ammonium meta-tungsten by continuous stirring and c) continuing mixing at a temperature of about 80 ° C until a gel is formed which is then sonified at 50-60 ° C. 6. The method according to claim 4 or 5, wherein said anti-radiation composition is not further cooled by ultrasound sonication at 50-60 ° C prior to sealing the gel to room temperature prior to sealing. 7. A method according to claim 4, characterized in that at least one relief (2) of the diffractive hoggle matrix embodying the radiolabel and its direction of sight (4) is embossed on the surface of the wall of one of the largest area of the transparent container. 8. A method according to claim 7, wherein, in order to obtain said diffractive hoggle matrix relief (2) on a light-conducting material having a digital hologram hatchet, it electrically wires a layer, electrolytically nickel it, a nickel layer with a mirrored copy of the digital hologram surface relief. separates and imprints on a transparent container (1) by the thermal surface of one of the largest area of the wall surface.