JPH04320988A - Radiation detector - Google Patents
Radiation detectorInfo
- Publication number
- JPH04320988A JPH04320988A JP3090376A JP9037691A JPH04320988A JP H04320988 A JPH04320988 A JP H04320988A JP 3090376 A JP3090376 A JP 3090376A JP 9037691 A JP9037691 A JP 9037691A JP H04320988 A JPH04320988 A JP H04320988A
- Authority
- JP
- Japan
- Prior art keywords
- detection element
- radiation
- detection
- element base
- hole
- 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
- 230000005855 radiation Effects 0.000 title claims abstract description 83
- 238000001514 detection method Methods 0.000 claims abstract description 102
- 238000007747 plating Methods 0.000 claims abstract description 18
- 239000012212 insulator Substances 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000000428 dust Substances 0.000 abstract description 6
- 230000035515 penetration Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、放射線診断装置、非破
壊検査装置などに用いる、広い領域を複数の検出素子を
配置して計測する放射線検出器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiation detector used in radiological diagnostic equipment, non-destructive testing equipment, etc., which measures a wide area by arranging a plurality of detection elements.
【０００２】0002
【従来の技術】近年、放射線は工業分野、あるいは医療
分野で広く利用されるようになり、放射線の測定用に簡
便な放射線検出器の実現が望まれている。以下に従来の
この種の放射線検出器について説明する。図３に従来の
放射線検出器の構成を示す。図に示すように、この放射
線検出器は放射線を検出する検出素子２１を検出素子基
板２２上に直線状に複数個配列されており、検出素子２
１の上面に形成された検出素子電極２３と、検出素子基
板２２の上部端面に形成された基板電極２４とが各検出
素子２１毎に導電性ワイヤ２５で電気的に接続されてい
る。2. Description of the Related Art In recent years, radiation has come to be widely used in the industrial and medical fields, and it is desired to realize a simple radiation detector for measuring radiation. A conventional radiation detector of this type will be explained below. FIG. 3 shows the configuration of a conventional radiation detector. As shown in the figure, in this radiation detector, a plurality of detection elements 21 for detecting radiation are arranged linearly on a detection element substrate 22.
A detection element electrode 23 formed on the upper surface of the detection element substrate 1 and a substrate electrode 24 formed on the upper end surface of the detection element substrate 22 are electrically connected to each detection element 21 by a conductive wire 25.
【０００３】0003
【発明が解決しようとする課題】このような従来の放射
線検出器では、低被曝線量において放射線量子の検出効
率を上げるためには、検出素子と検出素子から出力され
る放射線信号を増幅する初段増幅回路との電気的接続距
離をできるだけ短くする必要がある。さらに検出素子の
固定には、外圧から検出素子を保護するため、機械的強
度、および電磁遮蔽、放射線遮蔽などの対策を確保する
必要がある。しかし、従来の構成では、検出素子基板２
２上に素子を載置した状態で、導電性ワイヤ２５で電気
的接続が施されたままの状態のため、塵埃や外圧には弱
いという課題を有していた。[Problems to be Solved by the Invention] In such conventional radiation detectors, in order to increase the detection efficiency of radiation quanta at low exposure doses, it is necessary to increase the detection element and the first stage amplification that amplifies the radiation signal output from the detection element. It is necessary to keep the electrical connection distance to the circuit as short as possible. Furthermore, in fixing the detection element, it is necessary to ensure mechanical strength and measures such as electromagnetic shielding and radiation shielding in order to protect the detection element from external pressure. However, in the conventional configuration, the detection element substrate 2
Since the electrical connection is still made with the conductive wire 25 while the device is placed on the device 2, there is a problem that it is susceptible to dust and external pressure.
【０００４】また、導電性ワイヤ２５で接続する方法で
は、一般にワイヤボンダー装置などで電気的接続がなさ
れているが、その接続方法は、ワイヤーと金属で形成さ
れた電極との間で合金化して接続がなされていた。この
方法では、接続時に検出素子２１に直接外圧を加えるこ
とになり、組立中に電気特性、放射線特性を劣化させる
という課題を有していた。[0004] Furthermore, in the method of connecting with conductive wire 25, electrical connection is generally made using a wire bonder device, etc., but this connection method involves alloying the wire and an electrode made of metal. A connection had been made. This method has the problem of directly applying external pressure to the detection element 21 during connection, resulting in deterioration of electrical characteristics and radiation characteristics during assembly.
【０００５】また、検出素子２１と初段増幅回路（図示
せず）の接続には導電性ワイヤ２５で接続しているため
に、検出素子２１上を覆う放射線遮蔽体（図示せず）は
、導電性ワイヤに接触しないように絶縁距離を確保する
必要がある。そのため、検出素子２１に放射線遮蔽体を
接近して固定することが難しく、放射線を照射したとき
、隣接する検出素子への放射線の漏れ込み（クロストー
ク）が発生し、実際の放射線量子数よりも多く数えるこ
とになり、放射線測定精度を低下させるなどの課題を有
していた。Furthermore, since the detection element 21 and the first stage amplifier circuit (not shown) are connected by a conductive wire 25, the radiation shield (not shown) covering the detection element 21 is not electrically conductive. It is necessary to ensure an insulating distance to avoid contact with the conductive wires. Therefore, it is difficult to fix a radiation shield close to the detection element 21, and when radiation is irradiated, radiation leakage (crosstalk) to adjacent detection elements occurs, and the number of radiation quanta exceeds the actual number of radiation quanta. This resulted in a large number of counts, which led to problems such as lowering the accuracy of radiation measurement.
【０００６】本発明はこのような課題を解決するもので
、検出素子を塵埃から護り、電磁的、機械的に保護する
ことにより、放射線測定精度を向上することができる放
射線検出器を提供することを目的とするものである。The present invention solves these problems and provides a radiation detector that can improve radiation measurement accuracy by protecting the detection element from dust and electromagnetically and mechanically. The purpose is to
【０００７】[0007]
【課題を解決するための手段】この課題を解決するため
に本発明は、放射線を検出する複数個の検出素子を、検
出素子基台上に直線状または円弧状に配置した放射線検
出器にあって、前記検出素子が前記検出素子基台の中央
部に設けた溝に配設され、かつ前記検出素子の上に絶縁
体と放射線遮蔽体を位置決め手段で固定したものである
。[Means for Solving the Problem] In order to solve this problem, the present invention provides a radiation detector in which a plurality of detection elements for detecting radiation are arranged in a straight line or in an arc on a detection element base. The detection element is disposed in a groove provided in the center of the detection element base, and an insulator and a radiation shield are fixed onto the detection element by positioning means.
【０００８】また、検出素子基台に設けた導電性スルホ
ールめっきと、検出素子の表面に形成された電極とを、
導電性接着剤で固着したものである。[0008] Furthermore, the conductive through-hole plating provided on the detection element base and the electrodes formed on the surface of the detection element are
It is fixed with conductive adhesive.
【０００９】さらに、検出素子基台の中央部に配設した
検出素子の電極と、前記検出素子基台の一部に設けた孔
に、導電性のコンタクトピンを挿入固着し、かつ前記電
極と前記コンタクトピンが電気的に接続され、前記コン
タクトピンが回路基板などに設けられたコネクタに挿入
して装着するようにしたものである。Furthermore, conductive contact pins are inserted and fixed into the electrodes of the detection element disposed in the center of the detection element base and into the holes provided in a part of the detection element base, and the contact pins are connected to the electrodes. The contact pins are electrically connected, and the contact pins are inserted into and attached to a connector provided on a circuit board or the like.
【００１０】0010
【作用】この構成の放射線検出器によれば、検出素子基
台に設けた溝に検出素子を固着し、その上面に絶縁体と
放射線遮蔽体を密着して積層し固定するため、検出素子
を塵埃、外圧から保護することができる。また、検出素
子基台の上面に設けた、導電性パターンを形成した導電
性スルホールめっき部で電気的接続を行なうよう構成し
ている。そのため、スルホールめっき部に導電性接着剤
を流入し加熱するだけで、短時間での電気的接続が可能
となる。また、検出素子の幅と長さに等しい面積の透過
孔を設け、位置決めした状態で密着して固定することに
より、放射線を測定するときに隣接する検出素子への放
射線漏れ込みを抑制し、適正な放射線量子を数えること
ができる。また、検出素子と初段増幅回路との接続は、
検出素子基台に導電性パターンを設けたことで電気的接
続距離を極端に短くすることができ、さらに金属性の放
射線遮蔽体を導電性パターンの上に設けたことで、浮遊
容量を低減し、クロストークや回路発振を抑制すること
ができる。また、検出素子に設けた電極と電気的に接続
され、検出素子基台の下面から導電性ピンを突出させた
構成により、回路基板に設けたコネクタへの着脱が容易
となり、放射線検出器の交換を簡単に行うことができる
こととなる。[Function] According to the radiation detector with this configuration, the detection element is fixed in the groove provided in the detection element base, and the insulator and radiation shield are laminated and fixed in close contact with the upper surface of the detection element. Can be protected from dust and external pressure. Further, the structure is such that electrical connection is made through a conductive through-hole plating portion on which a conductive pattern is formed, which is provided on the upper surface of the detection element base. Therefore, electrical connection can be established in a short time simply by flowing the conductive adhesive into the through-hole plating area and heating it. In addition, by providing a transmission hole with an area equal to the width and length of the detection element and fixing it in close contact with each other in a positioned position, radiation leakage to adjacent detection elements can be suppressed when measuring radiation. radiation quanta can be counted. In addition, the connection between the detection element and the first stage amplifier circuit is
By providing a conductive pattern on the detection element base, the electrical connection distance can be extremely shortened, and by providing a metallic radiation shield on top of the conductive pattern, stray capacitance can be reduced. , crosstalk and circuit oscillation can be suppressed. In addition, the configuration has conductive pins that are electrically connected to the electrodes provided on the detection element and protrude from the bottom surface of the detection element base, making it easy to attach and detach from the connector provided on the circuit board, allowing for replacement of the radiation detector. This can be done easily.
【００１１】[0011]
【実施例】以下に本発明の一実施例を図面を用いて説明
する。図１に本発明の一実施例の放射線検出器の構成を
示す。一面に電圧印加用、他の一面に放射線検出用の電
極１が設けられた検出素子２は、中央部に検出素子２の
幅より広く、検出素子の厚さと同じ深さの溝を形成した
検出素子基台３の溝の底面に、直線状または円弧状に並
べられている。また、検出素子基台３は、中央部の溝の
両側面にスルホールめっきＡ４、スルホールめっきＣ５
が検出素子基台３を貫通しない状態で形成されている。
さらに検出素子基台３の両端面部にスルホールめっきＢ
６、スルホールめっきＤ７が検出素子基台３を垂直に貫
通した状態で形成されていて、スルホールめっきＡ４と
スルホールめっきＢ６および、スルホールめっきＣ５と
スルホールめっきＤ７が、それぞれ導電性パターンで電
気的に接続されている。さらに検出素子基台の上面に、
位置決めピン９が少なくとも２カ所に設けられている。
また、検出素子基台３の上面に、位置決め用孔を有する
絶縁体１１と、検出素子２と長さおよび幅が同じ寸法の
放射線透過孔１２を有する放射線遮蔽体１４とが、位置
決めピン９で位置決めして固定され、放射線検出部を構
成している。また、電極１と導電性パターン８との電気
的接続は、スルホールめっきＡ４およびスルホールめっ
きＣ５に導電性接着剤を注入して接着する構成としてい
るため、検出素子にかかる外圧荷重を最小限に抑制して
接続することができる。これにより検出素子の電気特性
、放射線特性の劣化を防止することができる。また、放
射線検出部と初段増幅回路の接続は、図示していないが
、スルホールめっきＢ６、スルホールめっきＤ７の下部
で、はんだなどで接続される。検出素子２は、金属材料
を用いた放射線遮蔽体１４と検出素子基台３で囲むため
機械的強度と電磁シールドが確保される。また、検出素
子基台３と放射線遮蔽体１４の間に絶縁体１１を挿入す
ることにより、検出素子の表面に塵埃などの混入を防止
している。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of a radiation detector according to an embodiment of the present invention. The detection element 2 has an electrode 1 for voltage application on one side and a radiation detection electrode 1 on the other side, and has a groove in the center that is wider than the width of the detection element 2 and has the same depth as the thickness of the detection element. They are arranged in a linear or arcuate manner on the bottom surface of the groove of the element base 3. In addition, the detection element base 3 has through-hole plating A4 and through-hole plating C5 on both sides of the central groove.
is formed so as not to penetrate through the detection element base 3. Furthermore, through-hole plating B is applied to both end surfaces of the detection element base 3.
6. Through-hole plating D7 is formed to perpendicularly penetrate detection element base 3, and through-hole plating A4 and through-hole plating B6 and through-hole plating C5 and through-hole plating D7 are electrically connected by conductive patterns, respectively. has been done. Furthermore, on the top surface of the detection element base,
Positioning pins 9 are provided at at least two locations. Further, on the upper surface of the detection element base 3, an insulator 11 having a positioning hole and a radiation shield 14 having a radiation transmitting hole 12 having the same length and width as the detection element 2 are attached with positioning pins 9. It is positioned and fixed, and constitutes a radiation detection section. In addition, the electrical connection between the electrode 1 and the conductive pattern 8 is made by injecting conductive adhesive into the through-hole plating A4 and the through-hole plating C5, thereby minimizing the external pressure load applied to the detection element. and can be connected. This can prevent deterioration of the electrical characteristics and radiation characteristics of the detection element. Furthermore, although not shown, the radiation detection section and the first-stage amplifier circuit are connected at the lower part of the through-hole plating B6 and the through-hole plating D7 using solder or the like. Since the detection element 2 is surrounded by a radiation shield 14 made of a metal material and a detection element base 3, mechanical strength and electromagnetic shielding are ensured. Further, by inserting an insulator 11 between the detection element base 3 and the radiation shield 14, it is possible to prevent dust from entering the surface of the detection element.
【００１２】図２に検出素子基台３に絶縁体１１と放射
線遮蔽体１４を位置決めして積層し、検出素子２と電気
的に接続されたコンタクトピン１５が挿入固着された放
射線検出器の構成を示す。放射線を遮蔽するタングステ
ン（Ｗ）、銅（Ｃｕ）、鉛（Ｐｂ）などの金属材料を用
いた放射線遮蔽体１４の中央部に検出素子２の長さおよ
び幅と同じ大きさの放射線透過孔１２を設けている。ま
た、放射線遮蔽体１４の上に絶縁体１１を積層し、検出
素子基台３の上部に設けた位置決めピン９により位置決
めして固定するよう構成している。検出素子２と放射線
透過孔１２との位置は、位置決めピンにより正確に位置
決めして固定できる。また放射線遮蔽体１４は検出素子
２に密着して固定できるため、放射線を照射するとき、
隣接する検出素子への漏れ込みを防ぐとともに、複数個
の検出素子に対して適正な強さの放射線が均一に照射さ
れるようになっている。FIG. 2 shows the structure of a radiation detector in which an insulator 11 and a radiation shield 14 are positioned and stacked on a detection element base 3, and a contact pin 15 electrically connected to the detection element 2 is inserted and fixed. shows. A radiation transmitting hole 12 having the same length and width as the detection element 2 is provided in the center of a radiation shielding body 14 made of a metal material such as tungsten (W), copper (Cu), or lead (Pb) that shields radiation. has been established. Further, the insulator 11 is laminated on the radiation shield 14, and is positioned and fixed by a positioning pin 9 provided on the upper part of the detection element base 3. The positions of the detection element 2 and the radiation transmitting hole 12 can be accurately positioned and fixed using positioning pins. Furthermore, since the radiation shield 14 can be fixed in close contact with the detection element 2, when irradiating radiation,
This prevents radiation from leaking into adjacent detection elements and uniformly irradiates a plurality of detection elements with radiation of appropriate intensity.
【００１３】また、検出素子２の表面に形成した電極と
、検出素子基台３の相対する位置に孔を設け、検出素子
２と電気的に接続されたコンタクトピン１５を挿入して
固定し、検出素子基台３を貫通して下方に突出している
。この突出したコンタクトピン１５の先端を回路基板１
８に設けられたコネクタ１７のソケット１６に挿入して
電気的に接続するとともに放射線検出器を固定していて
、着脱を容易に行うことができる構成となっている。Further, a hole is provided at a position where the electrode formed on the surface of the detection element 2 and the detection element base 3 face each other, and a contact pin 15 electrically connected to the detection element 2 is inserted and fixed. It penetrates the detection element base 3 and protrudes downward. Connect the tip of this protruding contact pin 15 to the circuit board 1.
The radiation detector is inserted into the socket 16 of the connector 17 provided in the connector 8 for electrical connection, and also fixes the radiation detector, so that it can be easily attached and detached.
【００１４】なお、本実施例では位置決め用孔と位置決
めピンを位置決め手段として用いたが、本発明はこれに
限定されるものではなく、他の位置決め手段を用いても
よい。In this embodiment, a positioning hole and a positioning pin are used as the positioning means, but the present invention is not limited thereto, and other positioning means may be used.
【００１５】[0015]
【発明の効果】以上の実施例の説明からも明かなように
本発明によれば、検出素子が検出素子基台の中央部に設
けられた溝に配列し、検出素子基台の上面に絶縁体と放
射線遮蔽体を位置決めピンで固定する。この構成により
、検出素子への塵埃の侵入を防止するとともに、外圧に
対する機械的保護と電磁シールドが確保される。また、
検出素子の電極と検出素子基台の導電性パターンとの電
気的接続は導電性スルホールめっき部に導電性接着剤を
注入して加熱硬化することにより、検出素子にかかる外
圧を最小限に抑制して接続することが可能となり、電気
特性、放射線特性の低下を防止することができる。
また、ワイヤボンド法により電気的接続を行うのに必要
なワイヤボンダー装置が不要となる。また、放射線遮蔽
体の中央部に検出素子の長さおよび、幅と同寸法の放射
線透過孔を設け、検出素子基台に密着して固定できるた
め、検出素子に放射線が照射するとき、隣接する検出素
子への放射線の漏れ込みを防ぎ、複数個の検出素子に対
して放射線量の均一化と適正化図ることができる。また
、検出素子基台に検出素子の電極と電気的に接続され、
検出素子基台を貫通するコンタクトピンを回路基板に設
けられたコネクタに挿入することにより、電気的接続と
放射線検出器の固定が同時に可能となり、放射線検出器
の着脱が容易に行うことができる。この結果、放射線検
出素子のメンテナンス性を向上することができ、簡便な
放射線検出器を実現できる。As is clear from the above description of the embodiments, according to the present invention, the detection elements are arranged in the groove provided in the center of the detection element base, and the detection elements are arranged in the groove provided in the center of the detection element base. Fix the body and radiation shield with positioning pins. This configuration prevents dust from entering the detection element, and ensures mechanical protection and electromagnetic shielding against external pressure. Also,
The electrical connection between the electrodes of the detection element and the conductive pattern on the detection element base is made by injecting a conductive adhesive into the conductive through-hole plating and curing it by heating, thereby minimizing the external pressure applied to the detection element. This makes it possible to connect the wires with the same connection, thereby preventing deterioration of electrical characteristics and radiation characteristics. Further, a wire bonder device required for making electrical connections by the wire bonding method is not required. In addition, a radiation transmitting hole with the same length and width as the detection element is provided in the center of the radiation shield, and it can be fixed tightly to the detection element base, so that when the detection element is irradiated with radiation, adjacent It is possible to prevent radiation from leaking into the detection elements, and to equalize and optimize the radiation dose for a plurality of detection elements. In addition, the electrode of the detection element is electrically connected to the detection element base,
By inserting a contact pin that passes through the detection element base into a connector provided on the circuit board, electrical connection and fixation of the radiation detector can be made simultaneously, and the radiation detector can be easily attached and detached. As a result, maintenance of the radiation detection element can be improved, and a simple radiation detector can be realized.
【図１】本発明の一実施例における放射線検出器の分解
斜視図FIG. 1: An exploded perspective view of a radiation detector in one embodiment of the present invention.
【図２】同放射線検出器の回路基板への装着状態を示す
分解断面図[Figure 2] Exploded cross-sectional view showing how the radiation detector is attached to the circuit board
【図３】従来の放射線検出器の要部断面図[Figure 3] Cross-sectional view of main parts of a conventional radiation detector
１ 電極 ２ 検出素子 ３ 検出素子基台 ４ スルホールＡ ５ スルホールＣ ６ スルホールＢ ７ スルホールＤ ８ 導電性パターン ９ 位置決めピン １０ 位置決め用孔Ａ １１ 絶縁体 １２ 放射線透過孔 １３ 位置決め用孔Ｂ １４ 放射線遮蔽体 １５ コンタクトピン １６ ソケット １７ コネクタ １８ 回路基板 1 Electrode 2 Detection element 3 Detection element base 4 Through hole A 5 Through hole C 6 Through hole B 7 Through hole D 8 Conductive pattern 9 Positioning pin 10 Positioning hole A 11 Insulator 12 Radiation transmission hole 13 Positioning hole B 14 Radiation shield 15 Contact pin 16 Socket 17 Connector 18 Circuit board
Claims (3)
出素子基台上に直線状または円弧状に配置した放射線検
出器にあって、前記検出素子が前記検出素子基台の中央
部に設けた溝に配設され、かつ前記検出素子の上に絶縁
体と放射線遮蔽体を位置決め手段で固定した放射線検出
器。1. A radiation detector in which a plurality of detection elements for detecting radiation are arranged in a linear or circular arc shape on a detection element base, wherein the detection element is located in the center of the detection element base. A radiation detector, which is disposed in the groove provided and has an insulator and a radiation shield fixed on the detection element by positioning means.
っきと、検出素子の表面に形成された電極とを、導電性
接着剤で固着した請求項１記載の放射線検出器。2. The radiation detector according to claim 1, wherein the conductive through-hole plating provided on the detection element base and the electrode formed on the surface of the detection element are fixed with a conductive adhesive.
の電極と、前記検出素子基台の一部に設けた孔に導電性
のコンタクトピンを挿入固着し、かつ前記電極と前記コ
ンタクトピンが電気的に接続され、前記コンタクトピン
が配線基板に設けられたコネクタに挿入して装着するよ
うにした請求項１記載の放射線検出器。3. A conductive contact pin is inserted and fixed into an electrode of the detection element disposed in the center of the detection element base and a hole provided in a part of the detection element base, and the electrode and the 2. The radiation detector according to claim 1, wherein the contact pin is electrically connected, and the contact pin is inserted into and attached to a connector provided on a wiring board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3090376A JPH04320988A (en) | 1991-04-22 | 1991-04-22 | Radiation detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3090376A JPH04320988A (en) | 1991-04-22 | 1991-04-22 | Radiation detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04320988A true JPH04320988A (en) | 1992-11-11 |
Family
ID=13996850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3090376A Pending JPH04320988A (en) | 1991-04-22 | 1991-04-22 | Radiation detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04320988A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002542587A (en) * | 1999-04-20 | 2002-12-10 | コミツサリア タ レネルジー アトミーク | Ionization chamber, sequence for measuring activity of β-ray emitting gas and method of using the same |
| US7301214B2 (en) | 2001-04-11 | 2007-11-27 | Nihon Kessho Kogaku Co., Ltd. | Component of a radiation detector comprising a substrate with positioning structure for a photoelectric element array |
| CN102998692A (en) * | 2011-09-16 | 2013-03-27 | 中国人民解放军63973部队 | Hands-and-feet contamination detecting instrument |
| JP2014115272A (en) * | 2012-11-15 | 2014-06-26 | Mitsubishi Heavy Ind Ltd | Radioactivity measuring apparatus |
-
1991
- 1991-04-22 JP JP3090376A patent/JPH04320988A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002542587A (en) * | 1999-04-20 | 2002-12-10 | コミツサリア タ レネルジー アトミーク | Ionization chamber, sequence for measuring activity of β-ray emitting gas and method of using the same |
| US7301214B2 (en) | 2001-04-11 | 2007-11-27 | Nihon Kessho Kogaku Co., Ltd. | Component of a radiation detector comprising a substrate with positioning structure for a photoelectric element array |
| CN102998692A (en) * | 2011-09-16 | 2013-03-27 | 中国人民解放军63973部队 | Hands-and-feet contamination detecting instrument |
| CN102998692B (en) * | 2011-09-16 | 2015-06-03 | 中国人民解放军63973部队 | Hands-and-feet contamination detecting instrument |
| JP2014115272A (en) * | 2012-11-15 | 2014-06-26 | Mitsubishi Heavy Ind Ltd | Radioactivity measuring apparatus |
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