TW201019348A - Radiation shielding structure composition - Google Patents
Radiation shielding structure composition Download PDFInfo
- Publication number
- TW201019348A TW201019348A TW98133871A TW98133871A TW201019348A TW 201019348 A TW201019348 A TW 201019348A TW 98133871 A TW98133871 A TW 98133871A TW 98133871 A TW98133871 A TW 98133871A TW 201019348 A TW201019348 A TW 201019348A
- Authority
- TW
- Taiwan
- Prior art keywords
- composition
- weight
- radiation shielding
- shielding structure
- radiation
- Prior art date
Links
- 230000005855 radiation Effects 0.000 title claims abstract description 44
- 239000000203 mixture Substances 0.000 title claims abstract description 39
- 239000002253 acid Substances 0.000 claims abstract description 24
- 235000012245 magnesium oxide Nutrition 0.000 claims abstract description 22
- 239000010881 fly ash Substances 0.000 claims abstract description 14
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 13
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 13
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 10
- 239000010452 phosphate Substances 0.000 claims abstract description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 10
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical class [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 235000012255 calcium oxide Nutrition 0.000 claims abstract 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 27
- 239000000395 magnesium oxide Substances 0.000 claims description 21
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 9
- 239000000292 calcium oxide Substances 0.000 claims description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- FNAQSUUGMSOBHW-UHFFFAOYSA-H calcium citrate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O FNAQSUUGMSOBHW-UHFFFAOYSA-H 0.000 claims description 4
- 239000001354 calcium citrate Substances 0.000 claims description 4
- FUFJGUQYACFECW-UHFFFAOYSA-L calcium hydrogenphosphate Chemical compound [Ca+2].OP([O-])([O-])=O FUFJGUQYACFECW-UHFFFAOYSA-L 0.000 claims description 4
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 4
- 235000019691 monocalcium phosphate Nutrition 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 235000013337 tricalcium citrate Nutrition 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 230000002285 radioactive effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical group [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- 229910052684 Cerium Inorganic materials 0.000 claims 1
- 229910052797 bismuth Inorganic materials 0.000 claims 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims 1
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 230000003204 osmotic effect Effects 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 claims 1
- QVLTXCYWHPZMCA-UHFFFAOYSA-N po4-po4 Chemical compound OP(O)(O)=O.OP(O)(O)=O QVLTXCYWHPZMCA-UHFFFAOYSA-N 0.000 claims 1
- NTTOTNSKUYCDAV-UHFFFAOYSA-N potassium hydride Chemical compound [KH] NTTOTNSKUYCDAV-UHFFFAOYSA-N 0.000 claims 1
- 229910000105 potassium hydride Inorganic materials 0.000 claims 1
- 239000002689 soil Substances 0.000 claims 1
- 229910052712 strontium Inorganic materials 0.000 claims 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims 1
- 239000000378 calcium silicate Substances 0.000 abstract description 3
- 229910052918 calcium silicate Inorganic materials 0.000 abstract description 3
- 235000012241 calcium silicate Nutrition 0.000 abstract description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 abstract description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011777 magnesium Substances 0.000 abstract description 2
- 229910052749 magnesium Inorganic materials 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 7
- 235000019796 monopotassium phosphate Nutrition 0.000 description 7
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 239000004576 sand Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 235000013980 iron oxide Nutrition 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- DFGKGUXTPFWHIX-UHFFFAOYSA-N 6-[2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]acetyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)C1=CC2=C(NC(O2)=O)C=C1 DFGKGUXTPFWHIX-UHFFFAOYSA-N 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- WZECUPJJEIXUKY-UHFFFAOYSA-N [O-2].[O-2].[O-2].[U+6] Chemical compound [O-2].[O-2].[O-2].[U+6] WZECUPJJEIXUKY-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012615 aggregate Substances 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- QXDMQSPYEZFLGF-UHFFFAOYSA-L calcium oxalate Chemical compound [Ca+2].[O-]C(=O)C([O-])=O QXDMQSPYEZFLGF-UHFFFAOYSA-L 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910000398 iron phosphate Inorganic materials 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 1
- 239000004137 magnesium phosphate Substances 0.000 description 1
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 1
- 229960002261 magnesium phosphate Drugs 0.000 description 1
- 235000010994 magnesium phosphates Nutrition 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 1
- 229910000342 sodium bisulfate Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 235000011008 sodium phosphates Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000439 uranium oxide Inorganic materials 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- -1 warp Chemical compound 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
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
- G21F1/06—Ceramics; Glasses; Refractories
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
-
- 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
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/34—Disposal of solid waste
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00258—Electromagnetic wave absorbing or shielding materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00862—Uses not provided for elsewhere in C04B2111/00 for nuclear applications, e.g. ray-absorbing concrete
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Description
201019348 六、發明說明： 【發明所屬之技術領域】 本發明大體係關於一種用於輻射屏蔽應用中之組合物。 本申請案主張於2 00 8年10月6曰申請之美國臨時申請案 第61/102,997號之優先權，該案之全文以引用的方式併入 本文中。 【先前技術】 輕射屏蔽結構的使用係常見的，尤其在核技術領域及任 何產生輻射的設備中。示例性輻射源包括宇宙射線、醫療 設備中的X射線、核反應器、陰極射線管（如電視及電腦監 視器）及類似物。輕射劑量在各種裝置中係經嚴密監測， 且針對人類曝露量有多種法規標準。輻射屏蔽對於限制敏 感設備對輻射的曝露亦很重要。舉例而言，保護核反應容 器免受γ射線照射。另一實例係：保護其他醫療裝置免受 可發出輻射之醫療裝置的照射。 混凝土或水泥係通常用於輻射屏蔽中的候選材料。舉例 而言’美國專利第5,786,611號提出一種用於儲存使用後的 核廢料之容器。該等容器包含混凝土及安定的氧化鈾集料 及諸如B2〇3、Hf03或Gd2〇3之中子吸收物質。美國專利第 4,727,257號提出一種輻射屏蔽組合物，其包含基於含集料 之水泥的灰漿，其中該集料包含懸浮的凝膠劑及硼材料。 美國公開案第2002/0165082號提出一種磷酸鹽陶瓷輻射屏 蔽組合物，其包含鎂、鉀及磷黏合劑，及用於散熱之構 件，如B4C、Bi2〇3、Fe2〇3、Fe3〇4、錯金屬及錯。 143794.doc 201019348 但是，仍需要一種價格較便宜且對重金屬依賴度較低， 同時可提供令人接受的輻射屏蔽水準之用於輻射屏蔽結構 之組合物。 【發明内容】 輻射屏蔽結構係廣泛用於核能發電廠、粒子加速器、研 究反應器、實驗室設備及放射及又射線醫療設備之屏蔽。 一重要態樣為由於所需的衰減係數或縮減因數而選擇特定 的屏蔽結構。線性衰減係數（μ)係取決於屏蔽材料之密 度》為消除材料密度變化之影響，該線性衰減係數係表示 為質量衰減係數b/p)cm2g-i。此係基於單位質量材料而直 接測量的屏蔽材料之效率。 為此，本發明提供一種輻射屏蔽結構組合物其包含矽 酸約、氧化鎂及酸式碟酸鹽。基於〇 662 放射源）及1.173 MeV(l pCz_Co_60放射源）之光子能量，該 輻射屏蔽結構與普通混凝土相比，具有提高的衰減係數。 在另一實施例中，本發明提供一種輻射屏蔽結構組合 物，其包含氧化鎂或氧化鈣、酸式磷酸鹽及飛灰，且基於 0.662 MeV(5 μ(：Κ：3-137放射源）及MeV〇…心⑼放 射源）之光子能量，該組合物與普通混凝土相比，具有提 高的衰減係數。 又另一實施例中，本發明提供一種輻射固化結構組合 物’其包含氧化鎂或氧化舞、酸式鱗酸鹽及高嶺土且基 於 0.662 MeV(5 pCiCS-l37 放射源）及丨 173 MeV〇 wC〇6〇 放射源）之光子能量，該組合物與普通混凝土相比，具有 143794.doc 201019348 提高的衰減係數。 【實施方式】 現將參考文中描述的其他實施例，更詳細描述本發明之 上述及其他態樣。應瞭解的是：本發明可以不同形式實施 且不應將其視為受限於文中闡述的實施例。相反地提供 此等實施例係為使本發明更加詳盡及完整，且使熟悉此項 技術者全面瞭解本發明之範圍。 文中本發明之說明中所使用的術語係僅用於描述特定實 施例之目的，且不意欲限制本發明。如本發明實施例之描 述及隨附申請專利範圍中所使用，單數形式「一」及 該」亦意欲包括複數形式，除非上下文另有清楚指示。 同樣地，如文中所使用，「及/或」係指且涵蓋任何及所有 一或多種相關列出項之可能的組合。此外，如文中所使 用，當術語「約」係指諸如化合物的量、劑量、時間、溫 度及類似之可測值時，其意欲包括指定量之20%、丨〇0/。、 5%、1%、0.5%或甚至〇·1。/。的變化。除非另有定義，否則 說明中所使用的全部術語（包括技術及科學術語）皆與本發 明所屬技術領域中之普通技藝者通常所瞭解的含義相同。 .該輻射屏蔽結構包含矽酸鈣（矽灰石）、氧化鎂及酸式碟 酸鹽。在一實施例中’該組合物包含約丨5至4〇重量％之石夕 酸辑、約10至35重量％之氧化鎂及約25至45重量％之酸式 破酸鹽。該組合物可視需要包含0.1至4〇重量％的高嶺土或 飛灰。 在另一實施例中，該輻射屏蔽結構包含氧化鎂或氧化 143794.doc 201019348 鈣酸式碌酸鹽及飛灰。在一實施例中，該結構包含1 4〇重量/。的锻燒氧化鎂或氧㈣、25至55重量％的酸 酸鹽及20至40重量％的飛灰。 在另一實施例中，該輕射屏蔽結構包含氧化鎂或氧化 妈、酸式賴鹽及高嶺土 u施财，該結構包含15 至40重量/〇的炮燒氧化鎂或氧化㉟、⑽至“重量％的酸式 碟酸鹽及5至25重量％的高嶺土。 不例性酸式磷酸鹽包括磷酸二氫鉀、磷酸鎂、磷酸鈉、 磷酸鋁、磷酸銨、磷酸鐵、磷酸鋅及其組合。在上述實施 例中，該酸式磷酸鹽可係磷酸二氫鉀。 可將該輻射屏蔽結構組合物與適宜的添加劑混合，且添 加量通常可約0.1至約30重量％。示例性添加劑包括阻燃 劑、經石、珍珠岩、纖維、乳化劑、抗絮凝劑、整合劑、 粒狀添加劑、粗集料（如石頭及沙）、如硼酸、加速劑（如購 自俄亥俄州，克利夫蘭市，Euclid化學品公司之 Accelguard)、著色劑及顏料之化學添加劑、填料、集料、 硼砂、矽石材料、氧化鐵、黏結劑（如購自俄亥俄州，克 利夫蘭市’ Euclid化學品公司之Eucopoxy樹脂及 Eucoweld、FlexC0n及Corr_b〇nd)、可塑劑、硬化劑（如購自 俄亥俄州’克利夫蘭市，Euciid化學品公司之Euco
Diamond Hard)、修補聚合物（如購自俄亥俄州，克利夫蘭 市’ Euclid化學品公司之Euc〇rapid修補劑）、微石夕粉（如購 自俄亥俄州，克利夫蘭市，Euclid化學品公司之
Eucoshot)、緩凝劑、表面軟化劑及高嶺土、固化化合物 143794.doc 201019348 (如 Brownstone CS)、減水劑（如 Accelguard、 Eucon AC)、 及加氣劑（如AEA及Air Mix)。 或者’亦可將中子吸收劑添加至該輻射屏蔽結構中。示 例性中子吸收劑包括重金屬及重金屬化合物，如：硼、 Β2〇3、Hf03或Gd203、氧化鐵、鉛及類似物。 或者’組合物中亦可包含各種加固物，或可將組合物施 用於加固物中。示例性加固物包括鋼（如鋼筋）、其他金屬
(如鉛）、碳、玻璃、石材、玄武岩、及呈纖維、顆粒及/或 織物/墊子形式的類似物。 可將該輻射屏蔽結構組合物混合成漿物，且喷塗於存在 的表面或基材上，以提高該表面的衰減係數，或可利用喷 塗、擠壓、模塑及類似方法使該漿物形成預定形狀。適宜 的結構包括用於核能發電廠、粒子加速器、研究反應器、 X射線設備、放射設備及類似物的屏蔽。其他結構包括用 於收容可發出有害輻射之廢料的傳輸及儲存容器，此係如 於2009年10月2曰申請之美國專利案第__號[代理 人案號：9591-8]所描述，該案之全文以引用的方式併入本 文中。 以下實例僅用於闡述本發明，且不具有限制性。 實例 實例1至6係以如下方式經調配： 實例1 氧化鎂 23% 填酸二氫鉀 23% 143794.doc 201019348 飛灰 21% 沙 33% 經測試之樣品具有0.50英吋的厚度。 氧化鎂 實例2 20% 填酸二氫鉀 23% 矽酸鈣 24% 沙 33% 經測試之樣品具有1.25英吋的厚度。 用鹽水重複進行實例1 實例3 。經測試之樣品具有2.00英吋的 厚度。 實例4 氧化鎂 23% 磷酸二氫鉀 23% 飛灰 11% 高嶺土 10% 沙 33% 經測試之樣品具有0.75英吋的厚度。 氧化鎂 實例5 3 0% 磷酸二氫鉀 34% 矽酸鈣 36% 經測試之樣品具有0.50英吋的厚度。 143794.doc 201019348 實例6 氧化鎂 3 0% 磷酸二氫鉀 31% 飛灰 28% 礙酸氫鈉 10% 經測試之樣品具有1 _00英吋的厚度。 實例7 重複進行實例1，且經測試之樣品具有1 ·〇〇英吋的厚 ❹ 度。該測試係利用一種由北卡羅來納州立大學（North
Carolina State University)開發之用於測量衰減係數的方法 而進行。 如圖1及2所示，與普通混凝土相比，實例1至6所得之調 配物具有顯著提高的衰減係數。 製備如下之調配物。 實例8 氧化鎂 3 4% 磷酸二 氫鉀 31% 飛灰 17% 高嶺土 15% 氧化鎂 實例9 34% 磷酸二 氫鉀 31% 飛灰 17% 高嶺土 15% 沙 3 0% 143794.doc 201019348 雖然已描述本發明之特定實施例，但應瞭解的是：由隨 附申請專利範圍所限定之本發明不受上述描述中所闡述的 特定細節限制’因為在不脫離下文所主張之本發明之本質 或範圍的情況下’有可能出現其各種明顯的變體。 【圖式簡單說明】 圖1係就利用5 pC/Cs-137放射源之〇·662 MeV光子能量 而言’實例1至6之輻射屏蔽結構組合物及普通混凝土 (「OC」）的衰減係數圖。 圖2係就利用1 pCz_Co-60放射源之1·173 MeV光子能量而 言’實例1至6之輻射屏蔽結構組合物及普通混凝土 (「OC」）的衰減係數圖。 143794.doc -10-
Claims (1)
- 201019348 ’ 七、申請專利範圍： 1. 一種輻射屏蔽結構組合物，其包含矽酸鈣、氧化鎂及酸 式磷酸鹽，且基於0.662 MeV(5 gCz_Cs-137放射源）及 1.173 MeV(l μ(：ζ·(：ο-60放射源）之光子能量，與普通混凝 • 土相比，其具有提高的衰減係數。 • 2.如請求項1之輻射屏蔽結構組合物，其包含1〇至4〇重量〇/0 之矽酸鈣、10至35重量％之氧化鎂及15至45重量％之酸 式磷酸鹽。 • 3. 如清求項2之輻射屏蔽結構組合物，其中該酸式破酸鹽 係碟酸二氫斜。 4. 一種包含請求項1之輻射屏蔽結構組合物之輻射屏蔽結 構’該組合物係經喷塗至基材上或形成預定結構。 5. 一種輻射屏蔽結構組合物，其包含氧化鎂或氧化鈣、酸 式磷酸鹽及飛灰，且基於0.662 MeV(5 pC/Csl37放射 源）及1.173 MeV(l μ(：κ〇_60放射源）之光子能量，與普 通混凝土相比，其具有提高的衰減係數。 6. 如請求項5之輻射屏蔽結構組合物，其包含Η至h重量％ 之炮燒氧化鎂或氧㈣、15至55重量％之酸式碌酸鹽及 20至40重量％之飛灰。 其中該酸式域酸鹽 如請求項6之輻射屏蔽結構組合物 係碟酸二氫鉀。 一種包含如諸炎馆ς ^ .....結構， 一種輻 143794.doc 201019348 式碟酸鹽及高嶺土，且基於〇·662 MeV(5 pC/Cs-137放射 源）及1.173 MeV(l μ(：ί(：ο-60放射源）之光子能量，與普 通混凝土相比，其具有提高的衰減係數。 ίο. 11. 12. 13. 14. 15. 16. 17. 如請求項9之輻射屏蔽結構組合物，其包含15至35重量〇/0 之緞燒氧化鎂或氧化舞、15至55重量％之酸式碟酸鹽及 20至40重量。/。之高嶺土。 如請求項1 〇之輻射屏蔽結構組合物，其中該酸式磷酸鹽 係磷酸二氫_。 一種包含如請求項10之輻射屏蔽結構組合物之輻射屏蔽 結構’該組合物係經喷塗至基材上或形成預定結構。 一種使一結構或基材屏蔽輻射之方法，該方法包括將包 含矽酸鈣、氧化鎂及酸式磷酸鹽之組合物施用於該結構 或基材上。 如请求項13之方法’其中該組合物包含1〇至4〇重量。/〇之 碎酸弼、10至35重量％之氧化鎂及15至45重量％之酸式 磷酸鹽。 一種使一結構或基材屏蔽輻射之方法，該方法包括將包 含氧化鎂或氧化鈣、酸式磷酸鹽及飛灰之組合物施用於 該結構或基材上。 如咕求項15之方法，其中該組合物包含丨5至重量％之 煅燒氧化鎂或氧化鈣、15至55重量％之酸式磷酸鹽及2〇 至40重量％之飛灰。 一種使一結構或基材屏蔽輻射之方法，該方法包括將包 含氧化鎖或氧化鈣、酸式磷酸鹽及高嶺土之組合物施用 143794.doc 201019348 ’ 於該結構或基材上。 18.如請求項17之方法，其中該組合物包含15至40重量％之 煅燒氧化鎂或氧化鈣、15至55重量％之酸式磷酸鹽及20 至40重量％之高嶺土。143794.doc
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- 2009-10-02 US US12/572,812 patent/US8409346B2/en not_active Expired - Fee Related
- 2009-10-05 JP JP2011531088A patent/JP2012504773A/ja active Pending
- 2009-10-05 CN CN2009801488255A patent/CN102246244A/zh active Pending
- 2009-10-05 EP EP09819697A patent/EP2345042A4/en not_active Withdrawn
- 2009-10-05 BR BRPI0920603A patent/BRPI0920603A2/pt not_active IP Right Cessation
- 2009-10-05 CA CA 2742305 patent/CA2742305A1/en not_active Abandoned
- 2009-10-05 CN CN2009801488274A patent/CN102246245A/zh active Pending
- 2009-10-05 BR BRPI0920813A patent/BRPI0920813A2/pt not_active IP Right Cessation
- 2009-10-05 EP EP09819698A patent/EP2345043A4/en not_active Withdrawn
- 2009-10-05 KR KR20117010298A patent/KR20110084417A/ko not_active Withdrawn
- 2009-10-05 KR KR20117010297A patent/KR20110084416A/ko not_active Withdrawn
- 2009-10-05 WO PCT/US2009/059477 patent/WO2010042417A2/en not_active Ceased
- 2009-10-05 WO PCT/US2009/059476 patent/WO2010042416A2/en not_active Ceased
- 2009-10-05 JP JP2011531089A patent/JP2012504774A/ja active Pending
- 2009-10-05 CA CA 2742259 patent/CA2742259A1/en not_active Abandoned
- 2009-10-06 TW TW98133869A patent/TW201019347A/zh unknown
- 2009-10-06 TW TW98133871A patent/TW201019348A/zh unknown
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102246244A (zh) | 2011-11-16 |
| US20140061542A1 (en) | 2014-03-06 |
| US20100090168A1 (en) | 2010-04-15 |
| US20100089292A1 (en) | 2010-04-15 |
| WO2010042417A2 (en) | 2010-04-15 |
| CA2742259A1 (en) | 2010-04-15 |
| WO2010042417A3 (en) | 2010-07-08 |
| CN102246245A (zh) | 2011-11-16 |
| BRPI0920603A2 (pt) | 2015-12-22 |
| EP2345043A4 (en) | 2012-06-20 |
| KR20110084416A (ko) | 2011-07-22 |
| JP2012504774A (ja) | 2012-02-23 |
| US8409346B2 (en) | 2013-04-02 |
| JP2012504773A (ja) | 2012-02-23 |
| WO2010042416A3 (en) | 2010-07-08 |
| EP2345042A2 (en) | 2011-07-20 |
| WO2010042416A2 (en) | 2010-04-15 |
| EP2345043A2 (en) | 2011-07-20 |
| CA2742305A1 (en) | 2010-04-15 |
| BRPI0920813A2 (pt) | 2017-07-11 |
| TW201019347A (en) | 2010-05-16 |
| EP2345042A4 (en) | 2012-06-27 |
| KR20110084417A (ko) | 2011-07-22 |
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