JPS58135995A - Radiation shielding transparent material - Google Patents
Radiation shielding transparent materialInfo
- Publication number
- JPS58135995A JPS58135995A JP1811382A JP1811382A JPS58135995A JP S58135995 A JPS58135995 A JP S58135995A JP 1811382 A JP1811382 A JP 1811382A JP 1811382 A JP1811382 A JP 1811382A JP S58135995 A JPS58135995 A JP S58135995A
- Authority
- JP
- Japan
- Prior art keywords
- radiation
- transparent material
- shielding transparent
- zinc iodide
- shielding
- 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.)
- Granted
Links
Landscapes
- Laminated Bodies (AREA)
- Materials For Medical Uses (AREA)
- Glass Compositions (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は放射線遮蔽物質、特に放射線遮蔽透明物質に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to radiation shielding materials, particularly radiation shielding transparent materials.
近年原子力産業の発展に伴ない、放射線遮蔽透明物質の
ｌｌ１ｌｌＷ：は特に高まってきている。この目的の為
には多くの場合、鉛ガラスが使用されている。In recent years, with the development of the nuclear power industry, the ll1llw: of radiation-shielding transparent materials has particularly increased. Lead glass is often used for this purpose.
然し、鉛ガラスは固体のブロックであり、製造工程上の
理由から形状１寸法に制限があり、機械的に脆弱であり
多数積み重ねることは技術的に困−である上、放射線損
傷により着色し易く０２のｒ線の１０５ラド槻度の照射
で黄褐色になる欠点がある・プラスチックス中に鉛を含
ませた鉛ガラス入りプラスチックスも発表されているが
、船の含有量が２０〜８０重量囁と低く遮蔽能力が鉛ガ
ラスより格段に劣るにも拘らず、光透過率が鉛ガラスよ
り格段に低く、ざらに放射線損傷により黄色に着色する
欠点がある。過去にＺｎＢｒ２溶液が使用されたことが
あったが、光透過率が低く、化学的に活性で多くの金属
を腐蝕する上、光及び放射線損傷に対する耐性が低い欠
点がある為、現在では殆んど使用されていない。従って
、こｎ等の欠点を有しない放射線遮蔽透明物質が要望さ
れていた。However, lead glass is a solid block, and due to the manufacturing process, there is a limit to its shape and size, it is mechanically fragile, it is technically difficult to stack many pieces, and it is easily colored due to radiation damage. There is a drawback that it becomes yellowish brown when exposed to 105 rad of R-rays from 02. Plastics containing lead glass containing lead in the plastic have also been announced, but the content of the ship is 20 to 80% by weight. Although its shielding ability is much lower than that of lead glass, its light transmittance is much lower than that of lead glass, and it has the drawback of becoming yellowish due to radiation damage. Although ZnBr2 solutions have been used in the past, they are now rarely used because they have low light transmittance, are chemically active and corrode many metals, and have low resistance to light and radiation damage. is not used. Therefore, there is a need for a radiation-shielding transparent material that does not have these drawbacks.
本発明はこｎらの欠点を解消する放射線遮蔽透明物資を
提供する。The present invention provides a radiation-shielding transparent material that overcomes these drawbacks.
本発明は放射線、光の照射に対して耐性が高く、鉛ガラ
スに比べて少くとも２桁高い耐性を有する放射線遮蔽透
明物質を提供することを目的とする。An object of the present invention is to provide a radiation-shielding transparent material that has high resistance to radiation and light irradiation, and has a resistance that is at least two orders of magnitude higher than that of lead glass.
本発明は形状及び寸法に制約のない放射線遮蔽透明物質
を提供することを目的とする。The object of the present invention is to provide a radiation-shielding transparent material that is free from restrictions in shape and size.
本発明はまた、化学的安定性が高く、長年月の使用で変
化を生じない放射線遮蔽透明物質を提供することを目的
とする。Another object of the present invention is to provide a radiation-shielding transparent material that has high chemical stability and does not change over many years of use.
本発明はまた、周辺の物質に対して化学的損傷を与える
ことの殆んど又は全くない放射線遮蔽透明物質を提供す
ることを目的とＴる。It is also an object of the present invention to provide a radiation-shielding transparent material that causes little or no chemical damage to surrounding materials.
本発明はざらに、菖い化合物液体（重液］を放射線遮蔽
透明物質として提供することを目的とするう本出願人は
先に前述の目的の為に蟻酸タリウム水溶液又は蟻酸タリ
ウム水溶液とマロン噌タリウム水溶液との混合液が好適
であることを見出し、特許出願した（特願昭５５−１５
８８００号）。同出願の重液は両者共光透過率、輻射長
くこれが放射線遮蔽に大きな役割を釆す】、灯光耐性、
対放射線耐性σ）何れも鉛ガラス（ＳＦ−５）と同程度
又はそれ以上の優れた特性を有するが、タリウムがカド
ミウムと同程度に強い毒性を有する為、取扱い及び管理
が困躍な欠点があった。従ってまた、本発明は取扱い及
び管理上危険の殆んどない重液を放射線遮蔽透明物資と
して提供することを目的とするＯ
本発明はさらに、長年月の放射線、光の照射に対して変
色しない放射線遮蔽透明物資を提供することを目的とす
る。The purpose of the present invention is to provide a liquid iris compound (heavy liquid) as a radiation shielding transparent material. It was discovered that a mixture with thallium aqueous solution was suitable, and a patent application was filed (Japanese Patent Application No. 55-15
No. 8800). The heavy liquids in the same application both have light transmittance, long radiation, which plays a major role in radiation shielding, light resistance,
Radiation resistance σ) Both have excellent properties comparable to or better than lead glass (SF-5), but thallium has the same strong toxicity as cadmium, making it difficult to handle and manage. there were. Therefore, the present invention also aims to provide a heavy liquid with almost no danger in handling and management as a radiation-shielding transparent material. The purpose is to provide radiation shielding transparent materials.
こｎ等の目的は本発明により達成される。These objectives are achieved by the present invention.
本発明は沃化亜鉛水溶液よりなることを特徴とする放射
線遮蔽透明物質である。The present invention is a radiation-shielding transparent material comprising an aqueous zinc iodide solution.
沃化亜鉛Ｚｎｌ、 （比重４０ｇ）はｇｏ℃の室温にお
いて４８０ｇが１００００の水に溶解し、比重２．８０
の重液となる。重液の輻射長は８．８ｃｍであり、鉛ガ
ラスの１．５倍である。光透過率は平均９５％以上であ
る。Zinc iodide Znl (specific gravity 40g) is dissolved in 10000 g of water at room temperature of go℃, specific gravity 2.80
becomes a heavy liquid. The radiation length of heavy liquid is 8.8 cm, which is 1.5 times that of lead glass. The average light transmittance is 95% or more.
放射線遮蔽透明物質は可視光領域（λ＝８５０〜６００
ｎｍ）の光の透過率が少くとも９０％以上であり、輻射
長が充分に短いことが必要である。その池、原子番号２
ができるだけ高く、比重ができるだけ大きく、長年月に
亘り放射線損傷に対し物理的、化学的に安定なことが好
ましい。The radiation-shielding transparent material is in the visible light region (λ=850-600
It is necessary that the transmittance of light (nm) is at least 90% or more and that the radiation length is sufficiently short. The pond, atomic number 2
It is preferable that the specific gravity be as high as possible, the specific gravity be as large as possible, and be physically and chemically stable against radiation damage over many years.
沃化亜鉛の水溶液は前述した値で示されるように、放射
線遮蔽透明物質として必要な性質を充分に有し、輻射長
は鉛ガラスの１．５倍以上であり、光透過率は鉛ガラス
と同等以上であり、過去に使用された臭化亜鉛水溶液に
比べ、遮蔽能力、光透過率、灯光耐性、対放射線耐性の
何れも優れている。As shown by the above-mentioned values, the aqueous solution of zinc iodide has sufficient properties necessary as a radiation-shielding transparent material, the radiation length is more than 1.5 times that of lead glass, and the light transmittance is comparable to that of lead glass. It is equivalent to or better than the zinc bromide aqueous solution used in the past in terms of shielding ability, light transmittance, resistance to lamp light, and resistance to radiation.
使用方法は臭化亜鉛水溶液と同様である。The method of use is the same as for zinc bromide aqueous solution.
然し、沃化亜鉛の水溶液は、鉛ガラスと同様に、長年月
の光、輻射線の照射に対しては変色し、黄褐色となるこ
とを見出した。この変色は虐化によりｚｎ工２→ｚ ｎ
＋ Ｉ２−″″と分離する結果、発生することを見
出した。However, it was discovered that, like lead glass, an aqueous solution of zinc iodide changes color and becomes yellowish brown when exposed to moonlight or radiation for many years. This discoloration is caused by zn engineering 2 → z n
+I2-'''' was found to occur as a result of separation.
従って、本発明の一実施例においては、沃化亜鉛の水溶
液に対して還元剤として次亜燐＃Ｈ３ＰＯ２を加えると
、長年月の光、放射線の照射に対して極めて・安定であ
り、変色を生じないことを見出した。本発明者は還元剤
は極めて多数存在するが、次＊ＩＩ酸以外の還元剤はこ
の目的に適さないことを見出した。例えば、多くの還元
剤は沃化亜鉛と化学変化を起し、着色する。Therefore, in one embodiment of the present invention, when hypophosphorous #H3PO2 is added as a reducing agent to an aqueous solution of zinc iodide, it is extremely stable against irradiation with moonlight and radiation for many years, and does not discolor. We found that this does not occur. The inventors have found that although there are a large number of reducing agents available, reducing agents other than the following *II acids are not suitable for this purpose. For example, many reducing agents chemically change with zinc iodide, resulting in color.
本発明の好適な一実施例においては、沃化亜鉛の飽和水
溶液に対し次亜１１＃の６０％水溶液を１２．６重置襲
加える。このようにすると、重液の酸化は完全に阻止さ
れ、強度の元、１０ フド以上の放射線に対しても長年
月に亘り、酸化を防止することができる。５０％次亜燐
酸水溶液の混入により比重は２．４０に低下するが、さ
らに沃化亜鉛を添加含有させることにより比重を２．７
０まで上昇させることができる。この重液は放射線遮蔽
透明物質として、従来の臭化亜鉛水溶液よりも邊かにＷ
Ｉｎた特性を有する。輻射長は条、０備、比重２．７０
であり、鉛ガラスＳＦ −５に比べて、光、放射線に対
して少くとも１００倍以上の耐性を有する。沃化亜鉛に
は記録された毒性はない。In a preferred embodiment of the present invention, a saturated aqueous solution of zinc iodide is bombarded with 12.6 times a 60% aqueous solution of hypochlorite 11#. In this way, oxidation of the heavy liquid is completely prevented, and oxidation can be prevented for many years even in the presence of intense radiation of 10 Fd or more. By mixing 50% hypophosphorous acid aqueous solution, the specific gravity decreases to 2.40, but by further adding zinc iodide, the specific gravity decreases to 2.7.
It can be raised to 0. This heavy liquid is used as a radiation-shielding transparent material, and has a slightly higher concentration of W than the conventional zinc bromide aqueous solution.
It has different characteristics. Radiation length is 0, specific gravity 2.70
It has at least 100 times more resistance to light and radiation than lead glass SF-5. Zinc iodide has no documented toxicity.
沃化亜鉛水溶液は、強化ガラス窓を有し、内面にレジン
ライニングを施したステンレススチール製容器に貯蔵す
ることかでき、腐蝕を完全に防止することができる。Zinc iodide aqueous solutions can be stored in stainless steel containers with tempered glass windows and resin lining on the inside to completely prevent corrosion.
本発明はまた、三塩化アンチモンの塩酸溶液より成るこ
とを特徴とする放射線遮蔽透明物質である。The present invention is also a radiation-shielding transparent material characterized in that it is made of a hydrochloric acid solution of antimony trichloride.
三塩化アンチモンＳｂＯ／３（比重４．１５）は、０℃
で６００９が１００００のＩＮ−塩酸に溶解し、比重２
．４０の重液となる。この重液は輻射長５． Ｑ Ｃ１
＆であり、船ガラスの２倍（遮蔽能力はγ線に対して約
５０％）である。可視光に対する透過率は平均９５％以
上である。また、光、放射線に対して極めて安定であり
、鉛ガラス５Ｆ−６に比べて少くトも１００倍以上の耐
性をＮＴる。使用にあたっては、臭化亜鉛水溶液とｂｆ
ｊ様に使用することができる。貯蔵容器は沃化亜鉛水溶
液と同様の容器が使用できる。この重液は臭化亜鉛水溶
液と比べ、同程度の遮蔽能力をｉするが、光透過率、灯
光耐性、対放射線耐性が格段に優れている。また、アン
チモンの毒性は鉛と同程度である。Antimony trichloride SbO/3 (specific gravity 4.15) is heated at 0°C
When 6009 is dissolved in 10000 IN-hydrochloric acid, the specific gravity is 2.
．． 40 heavy liquid. This heavy liquid has a radiation length of 5. Q C1
&, which is twice as strong as ship glass (the shielding ability is approximately 50% against gamma rays). The average transmittance for visible light is 95% or more. In addition, it is extremely stable against light and radiation, and has resistance that is at least 100 times greater than that of lead glass 5F-6. When using, zinc bromide aqueous solution and bf
It can be used by J. As a storage container, a container similar to that used for the zinc iodide aqueous solution can be used. This heavy liquid has the same shielding ability as a zinc bromide aqueous solution, but is much superior in light transmittance, resistance to lamp light, and resistance to radiation. Also, antimony's toxicity is on the same level as lead.
かくて本発明の放射線遮蔽透明物質は、従来の放射線遮
蔽透明物質に比べて極めて優れている。Thus, the radiation-shielding transparent material of the present invention is extremely superior to conventional radiation-shielding transparent materials.
本発明の広汎な精神と視舒を逸脱することなく本発明の
種々な変更と修整が可能なこと勿論である。It will be understood that various changes and modifications may be made to the invention without departing from its broad spirit and scope.
Claims (1)
蔽透明物質。 ２、特許請求の範囲１記載の放射線遮蔽透明物質におい
て、沃化亜鉛の飽和水溶液より成る放射線遮蔽透明物質
。 ＆ 特許請求の範囲１記載の放射線遮蔽透明物質におい
て、沃化亜鉛水溶液に還元剤を添加して成る放射線遮蔽
透明物質。 ４、 特許請求の範囲８記載の放射線遮蔽透明物質にお
いて、還元剤が次亜１１！である放射線遮蔽透明物質。 翫 特許請求の範囲令記載の放射線遮蔽透明物質におい
て、沃化亜鉛飽和水溶液に対して１２．５ 慮置鴨の次
亜燐酸５０％水溶液を添加して成る放射線遮蔽透明物質
。 ａ 特許請求の範囲５記戦の放射線遮蔽透明物質におい
て、沃化亜鉛をさらに添加して成る放射線遮蔽透明物質
。 フ、 三塩化アンチモンの４ａ！溶液より成ることを特
徴とする放射線遮蔽透明物質。 ＆ 特許請求の範囲７記載の放射線遮蔽透明物質におい
て、塩酸溶液がＩＮの塩嗜水溶液である放射線遮蔽透明
物質。[Claims] L. A radiation-shielding transparent material comprising an aqueous zinc iodide solution. 2. The radiation shielding transparent material according to claim 1, which comprises a saturated aqueous solution of zinc iodide. & The radiation-shielding transparent material according to claim 1, which is obtained by adding a reducing agent to an aqueous zinc iodide solution. 4. In the radiation-shielding transparent material according to claim 8, the reducing agent is hypochlorite 11! A radiation shielding transparent material.翫 The radiation-shielding transparent material according to the scope of claims, which is obtained by adding a 50% aqueous solution of hypophosphorous acid of 12.5 ml to a saturated aqueous solution of zinc iodide. a. A radiation-shielding transparent material according to claim 5, which further contains zinc iodide. Fu, 4a of antimony trichloride! A radiation-shielding transparent material comprising a solution. & The radiation shielding transparent material according to claim 7, wherein the hydrochloric acid solution is an aqueous salt solution of IN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1811382A JPS58135995A (en) | 1982-02-09 | 1982-02-09 | Radiation shielding transparent material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1811382A JPS58135995A (en) | 1982-02-09 | 1982-02-09 | Radiation shielding transparent material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58135995A true JPS58135995A (en) | 1983-08-12 |
| JPS6318160B2 JPS6318160B2 (en) | 1988-04-16 |
Family
ID=11962554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1811382A Granted JPS58135995A (en) | 1982-02-09 | 1982-02-09 | Radiation shielding transparent material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58135995A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0559396U (en) * | 1992-12-17 | 1993-08-06 | 日本原子力研究所 | Nuclear fuel material and special fissile material monitoring device |
| FR2866646A1 (en) * | 2004-02-24 | 2005-08-26 | Snecma Moteurs | Using iodinated methanes for absorbing ionizing radiation, useful particularly for detecting core residues in hollow molded objects and in protective devices |
-
1982
- 1982-02-09 JP JP1811382A patent/JPS58135995A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0559396U (en) * | 1992-12-17 | 1993-08-06 | 日本原子力研究所 | Nuclear fuel material and special fissile material monitoring device |
| FR2866646A1 (en) * | 2004-02-24 | 2005-08-26 | Snecma Moteurs | Using iodinated methanes for absorbing ionizing radiation, useful particularly for detecting core residues in hollow molded objects and in protective devices |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6318160B2 (en) | 1988-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS57111334A (en) | Corrosion preventing agent, manufacture and protection coating containing same | |
| ES8401553A1 (en) | Borate solution soluble polyvinyl alcohol films. | |
| JPS58135995A (en) | Radiation shielding transparent material | |
| US5431908A (en) | Method for preparing polyhalide resin disinfectants | |
| JP3381274B2 (en) | Algae-proofing composition and algae-proofing agent for ornamental fish using the present composition | |
| JPS57102982A (en) | Heat accumulating material | |
| US4035181A (en) | Protection of silver reduction materials | |
| JPS56116041A (en) | Binder for photographic toner | |
| US4585573A (en) | Heat storage material and process for producing the same | |
| Ham et al. | Stability of trace iodine solutions | |
| Boswell et al. | Nickel Catalysts. I. The Effect of the Temperature of Preparation on the Crystal Size and Composition of Nickel Oxide1 | |
| JPS5531832A (en) | Stabilization of copper compound in polyamide | |
| US3261747A (en) | Stabilized iodine labeled 2'-deoxy-5-iodouridine | |
| US3130044A (en) | Magnetic mercury | |
| US2739894A (en) | Single powder photographic developers containing lithium hydroxide | |
| US2682464A (en) | Method of packaging and stabilizing single-powder developers | |
| Landini et al. | Reduction and racemisation of sulphoxides by halide ions in aqueous perchloric acid: first-and second-order dependence of rates on h 0 | |
| JPS6342958B2 (en) | ||
| Kalkar et al. | Chemical effects induced by γ-irradiated NaCl in aqueous AgNO3 solution | |
| US2683650A (en) | Shielding window against radioactivity and composition therefor | |
| GB1217414A (en) | Long term silver dip | |
| Das et al. | Precipitation from homogeneous solution by photochemical action: Determination of thorium | |
| JPS6340456B2 (en) | ||
| Šušić et al. | The polarographic behavior of metal ions in molten LiNO3− KNO3 eutectic in presence of complexon III | |
| US3037622A (en) | Hydrogen peroxide stabilization |