CN2837990Y - Material for attenuation of roentgen tube ray, especially thin film for ray protection suite - Google Patents
Material for attenuation of roentgen tube ray, especially thin film for ray protection suite Download PDFInfo
- Publication number
- CN2837990Y CN2837990Y CNU2004900000069U CN200490000006U CN2837990Y CN 2837990 Y CN2837990 Y CN 2837990Y CN U2004900000069 U CNU2004900000069 U CN U2004900000069U CN 200490000006 U CN200490000006 U CN 200490000006U CN 2837990 Y CN2837990 Y CN 2837990Y
- Authority
- CN
- China
- Prior art keywords
- coating
- thin film
- radiation protection
- film
- flexible material
- 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
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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
- G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
- G21F3/02—Clothing
-
- 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
- G21F1/12—Laminated shielding materials
- G21F1/125—Laminated shielding materials comprising metals
Abstract
The utility model relates to a material used for the attenuation of roentgen tube rays, particularly to a thin film for an exposure suit. For the improvement, the utility model is provided with at least two flexibility materials of coatings and thin films of an elastic body used for a ray exposure suit, especially thermoplastic added absorption materials to weaken roentgen tube rays, namely that the roentgen ray of roentgen tube pressure in a wide range from 50KV to 150KV is made to have an even and favorable radial absorbency in the condition of raising an attenuation degree (lead equivalent) and reducing surface weight. A 'soft' absorption material arranged in a first coating/thin film with an orientation toward a radial source is as an absorption material, and a 'hard' absorption materials mounted in a coat/thin film which is with an orientation toward protective personnel and the last to be close to the body is as the absorption material. Especially, if another coating/thin film is arranged between the first coating/thin film close to the radial source and the last coating/thin film close to the body, the coating/thin film is appended with the absorption material with the (absorption) intensity which is between the absorption intensity of the coating/thin film on the coating/thin film close to the radial source and the absorption intensity of the last coating/thin film close to the body.
Description
Technical field
The present invention relates to a kind of material of the roentgen tube ray that is used for decaying, especially for the film of radiation protection clothes.
Background technology
Roentgen-ray (X ray) are used for experiment in a lot of fields, wherein according to the different mining of application scenario with different radiation intensity.In pharmaceuticals industry, aspect diagnosis, adopt 60 to 125KV, adopting 50 aspect the treatment to the roentgen's voltage more than the 150KV.The ray that is rich in energy is given the material that is penetrated wholly or in part with its energy when penetrable material, at this moment itself is decayed.The penetration performance of roentgen-ray depends on used accelerating potential; Therefore usually, the data of the penetration capacity of roentgen-ray or the intensity accelerating potential by being used for producing ray are represented.
Roentgen-ray do not have unified type.But it by two kinds form with constituent aspect very different ingredients form: bremstrahlen and distinctive own radiation.Bremstrahlen is launched when electronics is braked suddenly when hitting material; Its energy comes from the speed of the electronics that hits the roentgen tube anode, and it is relevant with the accelerating potential on being added in roentgen tube.Maximum kinetic energy that this is given, so the speed of electronics has the certain distribution with the corresponding upper limit of accelerating potential.Therefore the ray frequency spectrum is to have a broader frequency spectrum as the wavelength of the shortwave limit corresponding to highest energy.Distinctive own radiation comes from the electron shell of anode material material; It is made up of the single wavelength of strict restriction that is subjected to, and depends on the atom of roentgen tube anode material.Therefore each roentgen tube has its intrinsic roentgen's line spectrum.
This ray insalubrity of being rich in energy owing to the reason of occupation often need be protected ray through the personnel of raying, weakens this ray with this by means of a kind of absorber.In absorber, be rich in different and interaction that interweave takes place between the roentgen-ray of energy and the absorbing material.Three processes participate in this interaction: photoelectric effect, Compton scattering and coupling.Interested when selecting absorbing material is total dough softening.Absorbing material brings best effect must for described mixing frequency spectrum.
This radiation protection clothes contain the respective material of the roentgen tube ray that is used for decaying, and make the shape of film, wherein these films are made of elastic body, particularly thermoplastic elastomer, be mixed in its inside simple substance or as the heavy element (atomic number is greater than 50) of compound.In used roentgen's voltage range, lead reaches the highest absorption value in medicine diagnosis.Therefore in the material that becomes known for the radiation protection clothes the main lead that is embedded in the elastomeric material or the aluminium oxide of adopting as absorbing material.In field of medicaments for roentgen protection except the lead equivalent of press IEC61331-1 also employing press the yardstick of the dough softening of IEC1331-1 as absorbance log, this absorbance log relates to the radiation energy of the accelerating potential that depends on roentgen tube.Aspect face weight, plumbous equivalent material has less weight with respect to lead in middle roentgen-ray scope.Be lower than 70KV and be higher than the face weight of plumbous equivalent material in the accelerating potential scope of 125KV improper.
Owing to, use lead-free and absorb roentgen-ray with the harm of heavy metal lead associated health.Here particularly adopt the ordinal number of imbedding in the elastomeric material greater than 50 element or the uniform homogeneous blend of forming thus, also have the potpourri of forming by plumbous and lead-free.Yet known up to now plumbous equivalent material no matter be with which type of combination and coating, compared with lead for the radiation protection film of same thickness and is had relatively poor absorption value all the time.
Plumbous equivalent material combination or that apply may have uncertain absorption space.The virgin material of each atomic number has an intrinsic absorption spectrum relevant with absorption band atom.In order to obtain in the whole wavelength coverage of roentgen-ray absorbing fully, thereby ray is weakened, known multiple combination of materials.This combination of different materials and mustn't go to these (absorption) values and.Need measure absorbance log in desirable accelerating potential scope respectively for the combination of materials of film and thickness.The comparison of plumbous equivalent material can be obtained by absorbance log.
Summary of the invention
The objective of the invention is, a kind of radiation protection film that is used for is provided when reducing face weight, especially for the absorbing material of the dough softening with raising (lead equivalent) of radiation protection clothes, it has all even good ray absorption capacity for the roentgen-ray in a wide roentgen tube accelerating potential scope from 50KV to 150KV.
According to the present invention, this purpose realizes by the represented feature of independent claims; Dependent claims is introduced good improvement structure and preferred form of implementation.
Improving the dough softening (lead equivalent) when reducing face weight reaches by combination of different materials and the stagewise configuration especially for the radiation protection clothes under the roentgen-ray effect.The virgin material of each certain atomic number has intrinsic absorption spectrum (Fig. 1).Combination of different materials can not get these (absorption) value sums.Need test absorbance log in desired voltage range respectively for the thickness of a kind of combination of materials and used film.If protect roentgen-ray,, but make radiation strengthened (Aufh rtung) owing to stay the high-energy ray composition just low energy ray is absorbed so with a kind of soft absorbing material.The high-energy ray of this reinforcement can be absorbed by lead or massicot the most reliably.
Film as basis of the present invention is made up of the combination of the classification of different absorbing materials.Because the absorption by soft component is strengthened roentgen-ray, at first be provided with unleaded or few lead material towards radiographic source, elastic body comprises as the atomic number of " soft " absorber greater than about 50 to about 70 element or its compound.They for example are:
35 bromines, 38 strontiums, 40 zirconiums, 42 molybdenums, 45 rhodiums, 47 silver medals, 48 cadmiums, 49 indiums, 50 tin, 51 antimony, 53 iodine, 55 caesiums, 56 barium, light 57-71 lanthanide (comprising 58 ceriums).The ray of absorption enhancement again near the layer of health.Elastic body adds as the atomic number of " firmly " absorber greater than about 70 element or its compound, for example heavy 57-71 lanthanide, 74 tungsten, 75 rheniums, 60 osmiums, 77 iridium, 78 platinum, 79 gold medals, 80 mercury, 82 lead, 83 bismuths, 84 poloniums, 90 thoriums, 92 uranium and 89-103 actinide for this reason.
In order to absorb the roentgen-ray of remaining reinforcement, near health, a radiogenic side adopts the film that comprises as the element lead of decay roentgen-ray dorsad, it contains simple substance lead or massicot or as other plumbous compounds.
Film as basis of the present invention is made up of a kind of stagewise configuration of different absorbing materials.Here importantly, adopt the absorbing material of " soft " or its potpourri-for example tin, antimony, oxygen gadolinium sulfide, calcium-tungstate, bismuth oxide, barium sulphide, strontium carbide earlier towards this kept man of a noblewoman of radiographic source.The absorption of " firmly " roentgen-ray composition that stays is then born by " firmly " absorbing material or its potpourri, for example lead, massicot, tungsten or other potpourris.
Under the situation of different absorbing materials combination, find that unexpectedly following membrane structure has good roentgen-ray absorption value (dough softening) in being equivalent to 50 to 150KV the hard scope of wide roentgen-ray.This film also has for the radiation protection purpose, for example is used for baffle plate, masking film or the like, needed flexibility, so it is well suited for this purposes.Flexiblely also make face weight significantly reduce except high, this has just improved, and the wearing comfortableness-the two is for being used as ray protection material, and is particularly for radiation protection baffle plate and ray masking film, particularly important.In addition, to compare with tungsten be economic solution for this structure and plumbous equivalent material such as bismuth.
Obtained checking in the following structure described in the table 2 together with films/coatings listed in table 1 in the preferred form of implementation of the present invention, wherein constituent is for the design of the energy range of 50KV to 150KV:
Table 1:
| Film R1:Tin: barium sulphide: strontium carbide: polymkeric substance: | 79.7 percentage by weight 8.0 percentage by weights 0.3 percentage by weight 12.0 percentage by weights |
| Film R2:Plumbous: massicot: antimony: tin: polymkeric substance | 8.0 percentage by weight 33.0 percentage by weights 13.0 percentage by weights 33.0 percentage by weights 13.0 percentage by weights |
| Film R3:Plumbous: massicot: polymkeric substance: | 25.0 percentage by weight 62.0 percentage by weights 13.0 percentage by weights |
| Coating S1:Tin: | 80.0 percentage by weight |
| Polymkeric substance, liquid state: | 20.0 percentage by weight |
| Coating S2:Plumbous: massicot: polymkeric substance, liquid state: | 25.0 percentage by weight 62.0 percentage by weights 13.0 percentage by weights |
| Coating S3:Plumbous: massicot: antimony: tin: polymkeric substance, liquid state: | 8.0 percentage by weight 33.0 percentage by weights 13.0 percentage by weights 13.0 percentage by weights 13.0 percentage by weights |
| Coating S4:Tin: barium sulphide: strontium carbide: polymkeric substance, liquid state: | 79.7 percentage by weight 8.0 percentage by weights 0.3 percentage by weight 12.0 percentage by weights |
Carried out further test by combination listed in these films/coatings his-and-hers watches 2;
The face weight of all structures (films/coatings): 5500g/m
2
Test roentgen tube voltage: constant 96KV:
Ray filter: 3.5mm aluminium filters.
Film susceptibility for lead equivalent is determined: T8.
Table 2
| Membrane structure | Voltage KV | Dosage mAs | Lead equivalent |
| Example A:R1+R2: relatively: 2 * R1: | 96 96 | 1.3 1.3 | 0.525 0.484 |
| 2×R2： | 96 | 1.4 | 0.500 |
| Example B:R1+R3 compares: 2 * R1:2 * R3: | 96 96 96 | 1.3 1.3 1.3 | 0.494 0.484 0.484 |
| Example C:R2+R3: relatively: 2 * R2:2 * R3: | 96 96 96 | 1.3 1.3 1.3 | 0.464 0.500 0.413 |
| Example D: S1-R1-S2： | 96 | 1.3 | 0.490 |
| Example E: S1-R2-S3： | 96 | 1.3 | 0.505 |
| Example F: S1-R1-S4： | 96 | 1.3 | 0.485 |
| Example G: S1-R3-S3： | 96 | 1.3 | 0.470 |
These combinations of film and coating unexpectedly demonstrate higher absorption value.As known by table 2.The lead equivalent of combination is apparently higher than the numerical value for double single thin film institute measured value.In further testing with different roentgen's voltages, form of implementation of the present invention shows obvious superiority.
Description of drawings
Essence of the present invention schematically illustrates in the accompanying drawings:
Wherein expression:
Fig. 1: the attenuating material (being equivalent to routine A) that has the air layer of bilayer film and between them;
Fig. 2: the attenuating material (being equivalent to routine D) that has the coated on both sides on the matrix film;
Fig. 3: have by the coated on both sides of Fig. 2 and be connected the three-layer thin-film of back and the attenuating material of the air layer between them;
Fig. 4: by Fig. 3's but the attenuating material put upside down of structure.
Embodiment
Place the ray protection material 1 of making baffle plate, apron, curtain or the like in (representing) light path between roentgen tube " X " and personnel " P " to be protected by ray cone, and direct or indirect roentgen-ray are attenuated to such degree with it, make that to treat protected personnel can be free movable and be not subjected to the big danger of phototoxis.Film 2 and 3 is linked in sequence as ray protection material 1 front and back for this reason, and they weaken roentgen-ray with its combination.
The ray protection material 1 of the another kind of layout of expression among Fig. 2, be linked in sequence before and after wherein one be coated in that coating 6 and on the matrix film 5 is connected the back be coated in coated film 7 on the matrix film 5 equally, certainly, also can adopt radiation protection film (for example film R1, R2 or R3) as the matrix film here.Wherein coated film applies into the layer of respective thickness with liquid polymer, for example uses scraper plate, then sclerosis.Be used for the substrate of liquid polymer for the paint conduct of base in order to acrylates, epoxy resin, teflon or the like.
Fig. 3 and 4 is illustrated in the improvement structure of the structure of the ray protection material 1 shown in Fig. 2, but wherein connect in the centre and connect a film 1 (Fig. 3) under the situation of an air layer 4, perhaps connect in the middle of same under the situation of an air layer 4 and connect a film 2 in the back in this structure front.Form by the film 4 of ray approaching side at the ray protection material shown in Fig. 31, on it, apply a three-layer thin-film 5 towards radiographic source, the film of coating also can be set on the radiogenic dorsad side at the film of ray approaching side under the situation of correspondingly selecting absorbing material certainly, here.The distance of leaving an air layer 4 in the back of this bilayer film connects second layer film 3.In the ray protection material shown in Fig. 41, be provided with film 2 at the ray approaching side, the distance of leaving an air layer 4 in its back connects second layer film 5.Here, pass at this ray side film 5 on a side for the treatment of protected personnel, apply three-layer thin-film 8, same certainly, in that it also can be arranged on the side for the treatment of protected personnel dorsad under the situation of corresponding selection absorbing material.Here the air layer that is adopted can for example be made of the bubble air bubble film in the middle of being connected.
Hold court from behind a screen in order to make radiation protection, radiation protection cloak/apron or the like, these films not pipe racks still do not interconnect (specifically not drawing) with the film of coating in edge, this connects by welding or sewing and is undertaken here.Certainly, rolling bar or fringing band can be set here, wherein can also make the color mark of a ray attenuation.
Claims (14)
1. the flexible material that is used for the radiation protection clothes, its at least two coatings or film with a kind of especially thermoplastic elastomer body is a base, be added with absorbing material in order to weaken this material of roentgen tube ray, it is characterized by: at the absorbing material that " soft " is set in radiogenic first coating/thin film as absorbing material, towards treat protected personnel near last coating/thin film of health in " firmly " be set absorbing material as absorbing material.
2. by the flexible material that is used for radiation protection clothes of claim 1, it is characterized by: for the situation that another coating/thin film is arranged between close radiogenic first coating/thin film and close last coating/thin film of health, this coating/thin film adds such absorbing material, and its absorption intensity is between being fitted near the coating/thin film on the radiogenic coating/thin film with between the absorption intensity near last coating/thin film of health.
3. by the flexible material that is used for radiation protection clothes of claim 1, it is characterized by: for the situation that other coating/thin films are arranged between close radiogenic first coating/thin film and close last coating/thin film of health, these coating/thin films comprise such absorbing material, and its absorption intensity strengthens to the coating/thin film that is fitted near on last coating/thin film of health gradually from being fitted near the coating/thin film on the radiogenic coating/thin film.
4. by each the flexible material that is used for radiation protection clothes of claim 1 to 3, it is characterized by: to elastic body add atomic number at about 50 elements simple substance or the chemical combination attitude to about 70 scopes as soft absorbing material, for example tin, antimony, oxygen gadolinium sulfide, calcium-tungstate, barium sulphide and composition thereof or compound.
5. by the flexible material that is used for radiation protection clothes of claim 1 or 2, it is characterized by: to elastic body add atomic number greater than the element simple substance in about 70 scopes or the chemical combination attitude as hard absorbing material, for example tungsten, rhenium, mercury, lead, bismuth and composition thereof or compound.
6. by the flexible material that is used for the radiation protection clothes of claim 4 or 5, it is characterized by: the absorption characteristic of used absorbing material is replenished in 50 to 150KV scopes at least mutually.
7. by claim 4,5 or 6 the flexible material that is used for radiation protection clothes, it is characterized by: the absorbing material that adds to elastic body is mixed in the elastic body equably with the powder type of granularity in about 2 μ m to 100 mu m ranges, in elastic body with respect to its deal of finished product potpourri between 5-90%.
8. by each the flexible material that is used for radiation protection clothes of claim 1 to 7, it is characterized by: the thickness of single coating/thin film is between 0.1 to 10.mm.
9. by each the flexible material that is used for radiation protection clothes of claim 1 to 8, it is characterized by: the component of polymer of film is at least 10% percentage by weight, and each film all vulcanizes.
10. by each the flexible material that is used for radiation protection clothes of claim 1 to 9, it is characterized by: the bonding mutually or welding in edge at least of used film.
11. each the flexible material that is used for radiation protection clothes by claim 1 to 9 is characterized by: used film by means of one around rolling interconnect.
12. by each the flexible material that is used for radiation protection clothes of claim 1 to 9, it is characterized by: used film is equipped with at least one coating and hardens into the coating of respective thickness.
13. the flexible material that is used for the radiation protection clothes by claim 12 is characterized by: on the both sides of used film, apply a coating and sclerosis.
14. the flexible material that is used for radiation protection clothes by claim 12 or 13 is characterized by: coating is applying at the thickness between the 0.2mm to 2.0mm, and wherein coating thickness is preferably determined by means of a scraper plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10310666.9 | 2003-03-12 | ||
| DE10310666A DE10310666A1 (en) | 2003-03-12 | 2003-03-12 | Material for attenuating the rays of an X-ray tube, in particular for a film for radiation protective clothing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2837990Y true CN2837990Y (en) | 2006-11-15 |
Family
ID=32945861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004900000069U Expired - Lifetime CN2837990Y (en) | 2003-03-12 | 2004-02-26 | Material for attenuation of roentgen tube ray, especially thin film for ray protection suite |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN2837990Y (en) |
| DE (1) | DE10310666A1 (en) |
| WO (1) | WO2004081101A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107437438A (en) * | 2010-01-07 | 2017-12-05 | Bloxr解决方案有限责任公司 | Radiation protection system |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005029511A1 (en) * | 2005-06-24 | 2006-12-28 | Siemens Ag | Device used in medical X-ray devices comprises screen consisting of at least two materials for absorbing X-ray radiation |
| DE102006028958B4 (en) * | 2006-06-23 | 2008-12-04 | Mavig Gmbh | Layered lead-free X-ray protective material |
| US10157689B2 (en) | 2014-12-17 | 2018-12-18 | Savannah River Nuclear Solutions, Llc | Reinforced radiological containment bag |
| CN105997132A (en) * | 2016-08-01 | 2016-10-12 | 王梅 | Radiation protection device for imaging department |
| US10340049B2 (en) | 2016-08-04 | 2019-07-02 | Savannah River Nuclear Solutions, Llc | Alpha/beta radiation shielding materials |
| CN113674889B (en) * | 2021-07-30 | 2023-11-14 | 海南大学 | X-ray radiation protection module and manufacturing method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4795654A (en) * | 1984-11-05 | 1989-01-03 | Innofinance Altalanos Innovacios Penzintezet | Structure for shielding X-ray and gamma radiation |
| DE8437706U1 (en) * | 1984-12-22 | 1985-11-14 | Uniplast Dr. Raehs Kg, 5190 Stolberg | Reflective combination protection made from multi-layer film sections |
| US4923741A (en) * | 1988-06-30 | 1990-05-08 | The United States Of America As Represented By The Administrator, National Aeronautics And Space Administration | Hazards protection for space suits and spacecraft |
| WO1990006582A1 (en) * | 1988-11-28 | 1990-06-14 | Teleki Peter | Structure for influencing the effect of x-ray or gamma radiation on a target sensitive to the radiation |
| DE19955192C2 (en) * | 1999-11-16 | 2003-04-17 | Arntz Beteiligungs Gmbh & Co | Process for producing radiation protection material |
-
2003
- 2003-03-12 DE DE10310666A patent/DE10310666A1/en not_active Withdrawn
-
2004
- 2004-02-26 CN CNU2004900000069U patent/CN2837990Y/en not_active Expired - Lifetime
- 2004-02-26 WO PCT/EP2004/001901 patent/WO2004081101A2/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107437438A (en) * | 2010-01-07 | 2017-12-05 | Bloxr解决方案有限责任公司 | Radiation protection system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004081101A3 (en) | 2005-01-06 |
| WO2004081101A2 (en) | 2004-09-23 |
| DE10310666A1 (en) | 2004-10-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140226 Granted publication date: 20061115 |