JPH0443830Y2 - - Google Patents
Info
- Publication number
- JPH0443830Y2 JPH0443830Y2 JP2563884U JP2563884U JPH0443830Y2 JP H0443830 Y2 JPH0443830 Y2 JP H0443830Y2 JP 2563884 U JP2563884 U JP 2563884U JP 2563884 U JP2563884 U JP 2563884U JP H0443830 Y2 JPH0443830 Y2 JP H0443830Y2
- Authority
- JP
- Japan
- Prior art keywords
- resistance
- radiation
- dose
- change
- detected
- 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
Links
- 230000005855 radiation Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
Description
【考案の詳細な説明】
本考案は放射線量を検出するための装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for detecting radiation dose.
従来より、放射線量（主に中性子）を計測する
装置は種々考えられているが、高速中性子束が高
信頼度で計測できたり、或いは線量の位置分布や
線質（中性子エネルギーの割合）までも簡単な手
段によつて検出できるものはなかつた。 Up until now, various devices have been considered to measure radiation dose (mainly neutrons). None could be detected by simple means.
本考案は、こうした実情に鑑み、高速中性子束
をも高信頼度で計測でき、且つ線量分布、線質ま
でも検出することができるようにした放射線量計
を提供することを目的としたもので、放射線損傷
によつて抵抗に変化を生じる抵抗線が備えられた
複数の導電ケーブルにおける両端間の抵抗変化を
個別に検出することにより、放射線量を抵抗線の
抵抗値の変化量として検出するようにしたもので
ある。 In view of these circumstances, the present invention aims to provide a radiation dosimeter that can measure fast neutron flux with high reliability and also detect dose distribution and radiation quality. By individually detecting resistance changes between both ends of multiple conductive cables equipped with resistance wires whose resistance changes due to radiation damage, the radiation dose can be detected as the amount of change in the resistance value of the resistance wires. This is what I did.
以下図面に基づいて本考案の実施例を説明す
る。 Embodiments of the present invention will be described below based on the drawings.
第１図は本考案の一例を示すもので、複数の導
電ケーブル１ａ，１ｂ……をＵ字状に設けて夫々
の導電ケーブル１ａ，１ｂ……のＵ字状折曲げ部
に同一物質からなる抵抗線２ａ，２ｂ……を設け
ると共に、前記導電ケーブル１ａ，１ｂ……の両
端部を所要の電圧がかかるようにした接続端子３
ａ，３ｂ……及び３a′，３b′……に接続し、更に
該接続端子３ａ，３ｂ……及び３a′，３b′……間
における抵抗値の変化を別個に検出する抵抗計４
ａ，４ｂ……を設け、該各抵抗計４ａ，４ｂ……
からの検出値を導入して抵抗値の変化から線量を
演算する計算機５を設ける。図中６は放射線（中
性子）の計測を行う測定対象域を示す。また前記
抵抗線２ａ，２ｂ……には、ニツケル、ニオブ、
モリブデン等の種々の金属導線を選定して用いる
ことができ、また図示の場合、線量の位置分布を
検出するために、抵抗線２ａ，２ｂ……の位置を
個々にずらすようにしてある。また、前記導電ケ
ーブル１ａ，１ｂ……は束ねて１本のケーブルと
して使い易くしている。 Figure 1 shows an example of the present invention, in which a plurality of conductive cables 1a, 1b... are provided in a U-shape, and the U-shaped bent portions of each conductive cable 1a, 1b... are made of the same material. A connection terminal 3 is provided with resistance wires 2a, 2b, and so on, and a required voltage is applied to both ends of the conductive cables 1a, 1b, and so on.
a, 3b... and 3a', 3b'..., and further detects the change in resistance value between the connection terminals 3a, 3b... and 3a', 3b'... separately.
a, 4b... are provided, and each resistance meter 4a, 4b...
A calculator 5 is provided which calculates the dose from the change in resistance value by introducing the detected value from the resistance value. In the figure, 6 indicates a measurement target area in which radiation (neutrons) is measured. In addition, the resistance wires 2a, 2b... may include nickel, niobium,
Various metal conducting wires such as molybdenum can be selected and used, and in the case shown in the figure, the positions of the resistance wires 2a, 2b, . . . are individually shifted in order to detect the positional distribution of the dose. Further, the conductive cables 1a, 1b, . . . are bundled together to make it easier to use as one cable.
前記抵抗線２ａ，２ｂ……は、中性子によつて
放射線損傷を起こし、それにより抵抗値が変化す
る。従つて前記抵抗線２ａ，２ｂ……部分を測定
対象域６に挿入すれば、放射線量に応じた抵抗変
化が抵抗計４ａ，４ｂ……により読み取られ、そ
の抵抗値が別個に計算機５に導かれて線量が検出
される。このとき、抵抗線２ａ，２ｂ……の位置
が夫々異なつていることにより、その位置の線量
が別個に検出されることになるので、線量の分布
を知ることができる。 The resistance wires 2a, 2b, . . . undergo radiation damage due to neutrons, thereby causing a change in resistance value. Therefore, when the resistance wires 2a, 2b, . the dose is detected. At this time, since the positions of the resistance wires 2a, 2b, . . . are different, the dose at that position is detected separately, so that the distribution of the dose can be known.
また、第２図に示すように、導電ケーブル１
ａ，１ｂ……の夫々に、放射線損傷による抵抗変
化の違う金属の抵抗線２a′，２b′……を取付ける
ことにより、その位置での線質、即ち中性子エネ
ルギーが高いか低いかの種類も検出することがで
きる。また、前記第１図と第２図の構成を組合わ
せて実施することにより線量分布の線質の両方を
同時に検出できることは勿論である。また本考案
においては照射による抵抗率の変化が大きい物質
を抵抗線の材質として選定することにより、高速
中性子束についても容易に高信頼度で計測するこ
とができる。 In addition, as shown in FIG. 2, a conductive cable 1
By attaching metal resistance wires 2a', 2b'..., which have different resistance changes due to radiation damage, to a, 1b..., respectively, the radiation quality at that position, that is, whether the neutron energy is high or low, can be determined. can be detected. Furthermore, by combining the configurations shown in FIG. 1 and FIG. 2, it is of course possible to detect both the radiation quality of the dose distribution at the same time. Furthermore, in the present invention, by selecting a material for the resistance wire that exhibits a large change in resistivity due to irradiation, fast neutron flux can also be easily measured with high reliability.
尚、本考案は上記実施例にのみ限定されるもの
ではなく、本考案の要旨を逸脱しない範囲内にお
いて種々変更を加え得るものである。 Note that the present invention is not limited to the above-mentioned embodiments, and various changes may be made without departing from the gist of the present invention.
上述した本考案の放射線量計によれば、抵抗線
の放射線損傷による抵抗の変化によつて線量を検
出するようにしているので、抵抗線の設置数と材
質を選定することにより、線量の位置分布と線質
を検出することができると共に、高速中性子束の
計測も高信頼度で容易に実施することができる優
れた効果を奏し得る。 According to the radiation dosimeter of the present invention described above, the dose is detected by the change in resistance due to radiation damage of the resistance wire, so the position of the dose can be determined by selecting the number and material of the resistance wire. Not only can the distribution and radiation quality be detected, but also the excellent effect of being able to easily measure fast neutron flux with high reliability can be achieved.
第１図は本考案の一実施例を示す説明図、第２
図は抵抗線の材質を変えた場合の説明図である。
１ａ，１ｂ……は導電ケーブル、２ａ，２ｂ…
…，２a′，２b′……は抵抗線、３ａ，３ｂ……，
３a′，３b′……は接続端子、４ａ，４ｂは抵抗
計、５は計算機を示す。
Fig. 1 is an explanatory diagram showing one embodiment of the present invention;
The figure is an explanatory diagram when the material of the resistance wire is changed. 1a, 1b... are conductive cables, 2a, 2b...
..., 2a', 2b'... are resistance lines, 3a, 3b...,
3a', 3b', . . . are connecting terminals, 4a, 4b are resistance meters, and 5 is a calculator.
Claims (1)
抵抗線を中間部に有した導電ケーブルと、該各導
電ケーブルの両端間の抵抗変化を個別に検出する
抵抗計と、該各抵抗計の検出値に基づいて線量の
演算を行う計算機を備えたことを特徴とする放射
線量計。 A conductive cable that has an appropriate resistance wire in the middle that causes a change in resistance due to radiation damage, a resistance meter that individually detects the change in resistance between both ends of each conductive cable, and the detected value of each resistance meter. A radiation dosimeter characterized by being equipped with a calculator that calculates a dose based on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2563884U JPS60137391U (en) | 1984-02-24 | 1984-02-24 | radiation dosimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2563884U JPS60137391U (en) | 1984-02-24 | 1984-02-24 | radiation dosimeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60137391U JPS60137391U (en) | 1985-09-11 |
| JPH0443830Y2 true JPH0443830Y2 (en) | 1992-10-15 |
Family
ID=30520886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2563884U Granted JPS60137391U (en) | 1984-02-24 | 1984-02-24 | radiation dosimeter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60137391U (en) |
-
1984
- 1984-02-24 JP JP2563884U patent/JPS60137391U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60137391U (en) | 1985-09-11 |
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