JP3009924U - Continuous beta gamma absolute measuring device - Google Patents
Continuous beta gamma absolute measuring deviceInfo
- Publication number
- JP3009924U JP3009924U JP1994006575U JP657594U JP3009924U JP 3009924 U JP3009924 U JP 3009924U JP 1994006575 U JP1994006575 U JP 1994006575U JP 657594 U JP657594 U JP 657594U JP 3009924 U JP3009924 U JP 3009924U
- Authority
- JP
- Japan
- Prior art keywords
- air
- frame
- attached
- measuring device
- dust filter
- 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 - Lifetime
Links
Landscapes
- Measurement Of Radiation (AREA)
Abstract
(57)【要約】
【目的】 空気中には微量の放射性元素が多種類存在
し、その絶対量を測定することが原子力産業の上で、ま
た自然科学的にあるいは国民の保健医学的に必要な場合
がある。それらの放射性元素を連続的かつ、絶対的に測
定できる装置を提供する。
【構成】 空気吸引ポンプ（２）を取り付け、その反対
側に空気取入れ孔（３）を設けた箱（１）内に塵埃濾過
（じんあいろか）フィルター用の枠（５）を取り付け、
その枠に塵埃濾過フィルターを装着し、その枠を挟んで
空気吸収ポンプ（２）側にガンマ線計数装置（６）を置
き、空気取入れ孔（３）側にベータ線計数装置（４）を
置き、その両方を同時計数回路（７）に接続した測定装
置。
(57) [Abstract] [Purpose] There are many kinds of trace amounts of radioactive elements in the air, and it is necessary to measure the absolute amount in the nuclear industry, in the natural sciences, or in the public health medicine. There is a case. Provided is a device capable of continuously and absolutely measuring those radioactive elements. [Structure] An air suction pump (2) is attached, and a frame (5) for a dust filter is attached in a box (1) provided with an air intake hole (3) on the opposite side,
A dust filter is attached to the frame, a gamma ray counting device (6) is placed on the side of the air absorption pump (2) with the frame sandwiched, and a beta ray counting device (4) is placed on the side of the air intake hole (3). A measuring device in which both are connected to a coincidence counting circuit (7).
Description
【０００１】[0001]
この考案は集塵装置の中にベータ線計数装置とガンマ線計数装置を置いた連続 的な放射性元素の絶対測定装置に関するものである。 The present invention relates to a continuous absolute measuring device for radioactive elements in which a beta ray counter and a gamma ray counter are placed in a dust collector.
【０００２】[0002]
以前にも、ある時刻の一点だけで絶対測定をする装置は考案されていた。また 、集塵装置のついた、連続的な放射性元素測定装置はあったが、絶対測定はでき なかった。 Previously, a device that made an absolute measurement at only one point at a certain time was devised. Also, there was a continuous radioactive element measuring device with a dust collector, but absolute measurement was not possible.
【０００３】[0003]
従来、時々刻々に数量が変化する放射性元素の連続的な絶対測定はできなかっ た。本考案は空気中の放射性元素量の連続的変化を厳密な絶対測定法でおこなう ことを可能にするものである。 In the past, continuous absolute measurement of radioactive elements, whose quantity changed every moment, was not possible. The present invention enables a continuous change in the amount of radioactive elements in the air to be performed by a strict absolute measurement method.
【０００４】[0004]
いま、本考案を図面で説明すれば、以下のようである。 （イ）箱（１）の側面に空気吸引ポンプ（２）をつなぎ、反対側に空気取入れ孔 （３）を設け、測定対象の空間から空気を吸引する （ロ）箱（１）内に塵埃濾過フィルター用の枠（５）を設置する。吸引した空気 は洩れなくフィルターを通過させなければならない。 （ハ）フィルターを挟んで空気吸引ポンプ（２）側にガンマ線計数装置（６）、 空気取入れ孔（３）側にベータ線計数装置（４）を配置する。 （ニ）ガンマ線計数装置（６）、ベータ線計数装筺（４）を同時計数回路（７） に接続する。 The present invention will now be described with reference to the drawings. (A) The air suction pump (2) is connected to the side of the box (1) and the air intake hole (3) is provided on the opposite side to suck air from the space to be measured. (B) Dust inside the box (1) Install the frame (5) for the filtration filter. The sucked air must pass through the filter without leakage. (C) A gamma ray counting device (6) is arranged on the side of the air suction pump (2), and a beta ray counting device (4) is arranged on the side of the air intake hole (3) with the filter in between. (D) The gamma ray counting device (6) and the beta ray counting device (4) are connected to the coincidence counting circuit (7).
【０００５】[0005]
集塵装置の空気吸引ポンプ（２）を作動させると、空気取入れ孔（３）から連 続的に空気が入り、空気中の塵埃は濾過されてフィルターに付着する。それとと もに、付着した塵埃に含まれる放射性元素から出るベータ線はベータ線計数装置 （４）で、ガンマ線はガンマ線計数装置（６）で、また両者の同時計数値は同時 計数回路（７）でそれぞれ計数され、次式で放射性元素の壊変率Ｘが連続的に絶 対測定される。 When the air suction pump (2) of the dust collector is operated, air continuously enters through the air intake hole (3), and dust in the air is filtered and adheres to the filter. At the same time, beta rays emitted from radioactive elements contained in the attached dust are beta ray counters (4), gamma rays are gamma ray counters (6), and the same clock value of both is the simultaneous counting circuit (7). The decay rate X of radioactive elements is continuously measured by the following equation.
【図面の簡単な説明】[Brief description of drawings]
【図１】 本考案の箱（１）を透視した斜視図である。FIG. 1 is a perspective view of a box (1) of the present invention seen through.
【図２】 本考案の箱（１）を透視した真横図である。FIG. 2 is a side view of the box (1) of the present invention seen through.
【図３】 本考案の斜視図である。FIG. 3 is a perspective view of the present invention.
１ 箱 ２ 空気吸引
ポンプ ３ 空気取入れ孔 ４ ベータ線
計数装置 ５ 塵埃濾過フィルター用の枠 ６ ガンマ線
計数装置 ７ 同時計数回路1 Box 2 Air Suction Pump 3 Air Intake Hole 4 Beta Ray Counter 5 Dust Filter Filter Frame 6 Gamma Ray Counter 7 Simultaneous Counting Circuit
Claims (1)
か）フィルター用の枠（５）を取り付ける。 （ロ）その箱に、空気吸引ポンプ（２）を取り付けた集
塵装置を作成する。 （ハ）その枠に塵埃濾過フィルターをつけ、その枠を挟
んで空気吸収ポンプ側にガンマ線計数装置（６）を置
き、反対側にベータ線計数装置（４）を置く。 （ニ）ベータ線計数装置（４）とガンマ線計数装置
（６）を同時計数回路（７）に接続する。 以上のごとく構成された測定装置。(A) A frame (5) for a dust filter is installed in a box (1). (B) A dust collector in which the air suction pump (2) is attached to the box is prepared. (C) A dust filter is attached to the frame, the gamma ray counter (6) is placed on the side of the air absorption pump with the frame sandwiched, and the beta ray counter (4) is placed on the opposite side. (D) The beta ray counting device (4) and the gamma ray counting device (6) are connected to the coincidence counting circuit (7). A measuring device configured as described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1994006575U JP3009924U (en) | 1994-05-01 | 1994-05-01 | Continuous beta gamma absolute measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1994006575U JP3009924U (en) | 1994-05-01 | 1994-05-01 | Continuous beta gamma absolute measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3009924U true JP3009924U (en) | 1995-04-18 |
Family
ID=43145701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1994006575U Expired - Lifetime JP3009924U (en) | 1994-05-01 | 1994-05-01 | Continuous beta gamma absolute measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3009924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0571456U (en) * | 1992-02-28 | 1993-09-28 | エヌ・オー・ケー・メグラスティック株式会社 | Coupling |
| KR102656549B1 (en) * | 2023-10-31 | 2024-04-11 | 주식회사 미래와도전 | Compact Radiation Detection Apparatus |
-
1994
- 1994-05-01 JP JP1994006575U patent/JP3009924U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0571456U (en) * | 1992-02-28 | 1993-09-28 | エヌ・オー・ケー・メグラスティック株式会社 | Coupling |
| KR102656549B1 (en) * | 2023-10-31 | 2024-04-11 | 주식회사 미래와도전 | Compact Radiation Detection Apparatus |
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