JPS63139284A - Method for confirming buried position of radioactive solid waste - Google Patents
Method for confirming buried position of radioactive solid wasteInfo
- Publication number
- JPS63139284A JPS63139284A JP61287315A JP28731586A JPS63139284A JP S63139284 A JPS63139284 A JP S63139284A JP 61287315 A JP61287315 A JP 61287315A JP 28731586 A JP28731586 A JP 28731586A JP S63139284 A JPS63139284 A JP S63139284A
- Authority
- JP
- Japan
- Prior art keywords
- radioactive solid
- solid waste
- diameter
- castable refractory
- images
- 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.)
- Pending
Links
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 18
- 239000002910 solid waste Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000002591 computed tomography Methods 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000011819 refractory material Substances 0.000 description 7
- 238000009933 burial Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、キャスタブル耐火物中に埋設された多数の放
射性固体廃棄物の埋設位置を確認する方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for confirming the burial position of a large number of radioactive solid wastes buried in castable refractories.
［従来の技術］
放射性固体廃棄物は、通常、キャスタブル耐火物中に埋
設する固体廃棄物処分が行われている。[Prior Art] Radioactive solid waste is usually disposed of by burying it in castable refractories.
従来、放射性固体廃棄物がキャスタブル耐火物によって
完全に封入されているか否かを確認するには、透過Ｘ線
装置を用いる方法がとられている。Conventionally, a method using a transmission X-ray device has been used to confirm whether radioactive solid waste is completely encapsulated with castable refractories.
［発明が解決しようとする問題点］
しかしながら、上記従来の透過Ｘ線を用いる確認方法に
よれば、解像力がキャスタブル耐火物の厚さの５％程度
であるため、確認精度が低い問題がある。[Problems to be Solved by the Invention] However, according to the conventional confirmation method using transmitted X-rays, the resolution is about 5% of the thickness of the castable refractory, so there is a problem that the confirmation accuracy is low.
そこで、本発明は、キャスタブル耐火物の厚さに左右さ
れることなく埋設位置を正確に確認し得るようにした放
射性固体廃棄物の埋設位置確認方法を提供しようとする
ものである。Therefore, the present invention aims to provide a method for confirming the buried position of radioactive solid waste, which allows the buried position to be accurately confirmed regardless of the thickness of the castable refractory.
［問題点を解決するための手段コ
前記問題点を解決するため、本発明は、キャスタブル耐
火物中に埋設された多数の放射性固体廃棄物の埋設位置
を産業用Ｘ線ＣＴ装置を用いて確認する方法である。[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention uses an industrial X-ray CT system to confirm the burial positions of a large number of radioactive solid wastes buried in castable refractories. This is the way to do it.
［作 用コ
上記手段によれば、放射性固体廃棄物を埋設したキャス
タブル耐火物のスライス断面像がその密度差に基づ＜Ｃ
Ｔ値に応じた濃淡像として搬像される。[Operation] According to the above-mentioned means, the sliced cross-sectional image of the castable refractory in which radioactive solid waste is buried is
The image is transported as a grayscale image according to the T value.
［実施例コ 以下、本発明の一実施例を図面に基づいて説明する。[Example code] Hereinafter, one embodiment of the present invention will be described based on the drawings.
まず、ペレット状若しくは円柱状（直径：５０ｍ、長さ
１５０ｓｇ）の多数の放射性固体廃棄物１を金網２内に
装入し、これをＡＪｚＯ３又は５ｉＯｚの粉砕物を骨材
とするキャスタブル耐火物３中に埋設し、円柱状（直径
：８ｏＩＦｔｆｆ１．長さ２００越）の被検査物４を形
成した。First, a large number of radioactive solid wastes 1 in the form of pellets or cylinders (diameter: 50 m, length 150 sg) are charged into a wire mesh 2, and then castable refractories 3 whose aggregates are crushed AJzO3 or 5iOz A cylindrical (diameter: 8oIFtff1.length: over 200mm) test object 4 was formed by embedding the test piece in the inside.
ついで、上記被検査物４を１２０ｋＶ、２００ｍＡ以上
の出力を有する産業用ＸＩＩＣＴ （計算断層ｌｉｔ彰
：ｃｏｍｐｕｔｅｄ ｔｏｍｏｇｒａ（ｌｈｙ）装置を
用いて軸方向及び径方向のスライス断面を搬像したとこ
ろ、第１図及び第２図に示すスライス断面像が得られた
。Next, when the inspected object 4 was imaged in axial and radial slice sections using an industrial XIICT (computed tomography) device having an output of 120 kV and 200 mA or more, the first The slice cross-sectional images shown in the figure and FIG. 2 were obtained.
なお、第１図、第２図において５はキャスタブル耐火物
３の外周に配設した金網である。In addition, in FIG. 1 and FIG. 2, 5 is a wire mesh arranged around the outer periphery of the castable refractory 3.
したがって、キャスタブル耐火物３に埋設された放射性
固体廃棄物１の埋設位置を正確に確認し）ｑることがわ
かる。Therefore, it can be seen that the buried position of the radioactive solid waste 1 buried in the castable refractory 3 can be accurately confirmed.
［発明の効果］
以上のように本発明によれば、キャスタブル耐大物中に
埋設された放射性固体廃棄物が両者の密度差に基づ＜Ｃ
Ｔ値に応じたＩｌｌ画像して明瞭に搬像できるので、従
来の技術に比し、キャスタブル耐火物中における放射性
固体廃棄物の埋設位置を精確に確認することができる。[Effects of the Invention] As described above, according to the present invention, radioactive solid waste buried in a large castable material is
Since it is possible to clearly convey an Ill image according to the T value, the buried position of radioactive solid waste in castable refractories can be confirmed more accurately than with conventional techniques.
図は本発明の一実施例を示すもので、第１図はキャスタ
ブル耐火物中に埋設された放射性固体廃棄物の軸方向の
スライス断面図、第２図は第１図におけるＩＩ−Ｉ線に
沿ったスライス断面図である。
１・・・放射性固体廃棄物 ２・・・金網３・・・
キャスタブル耐火物The figures show one embodiment of the present invention, in which Fig. 1 is a sliced cross-sectional view in the axial direction of radioactive solid waste buried in a castable refractory, and Fig. 2 is taken along the line II-I in Fig. 1. FIG. 1... Radioactive solid waste 2... Wire mesh 3...
castable refractories
Claims (1)
棄物の埋設位置を産業用Ｘ線ＣＴ装置を用いて確認する
ことを特徴とする放射性固体廃棄物の埋設位置確認方法
。A method for confirming the buried position of radioactive solid waste, comprising confirming the buried position of a large number of radioactive solid wastes buried in a castable refractory using an industrial X-ray CT device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61287315A JPS63139284A (en) | 1986-12-02 | 1986-12-02 | Method for confirming buried position of radioactive solid waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61287315A JPS63139284A (en) | 1986-12-02 | 1986-12-02 | Method for confirming buried position of radioactive solid waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63139284A true JPS63139284A (en) | 1988-06-11 |
Family
ID=17715773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61287315A Pending JPS63139284A (en) | 1986-12-02 | 1986-12-02 | Method for confirming buried position of radioactive solid waste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63139284A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6624425B2 (en) * | 2001-05-03 | 2003-09-23 | Bio-Imaging Research, Inc. | Waste inspection tomography and non-destructive assay |
| US20140299757A1 (en) * | 2009-10-29 | 2014-10-09 | Battelle Energy Alliance, Llc | Methods for radiation detection and characterization using a multiple detector probe |
-
1986
- 1986-12-02 JP JP61287315A patent/JPS63139284A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6624425B2 (en) * | 2001-05-03 | 2003-09-23 | Bio-Imaging Research, Inc. | Waste inspection tomography and non-destructive assay |
| US20140299757A1 (en) * | 2009-10-29 | 2014-10-09 | Battelle Energy Alliance, Llc | Methods for radiation detection and characterization using a multiple detector probe |
| US8878140B2 (en) * | 2009-10-29 | 2014-11-04 | Battelle Energy Alliance, Llc | Methods for radiation detection and characterization using a multiple detector probe |
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