JPH0321795U - - Google Patents
Info
- Publication number
- JPH0321795U JPH0321795U JP8172889U JP8172889U JPH0321795U JP H0321795 U JPH0321795 U JP H0321795U JP 8172889 U JP8172889 U JP 8172889U JP 8172889 U JP8172889 U JP 8172889U JP H0321795 U JPH0321795 U JP H0321795U
- Authority
- JP
- Japan
- Prior art keywords
- scintillator
- wall
- optical fiber
- photomal
- photocathode
- 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
- 239000013307 optical fiber Substances 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Description
第１図は本考案一実施例の小口径管内壁放射能
測定装置を示す断面図、第２図、第３図、第４図
はそれぞれ第１図の装置の変形例を示す断面図、
第５図は本考案の他の実施例の小口径管内壁放射
能測定装置を示す断面図、第６図は管内壁放射能
測定に用いる従来の放射線検出器を示す断面図で
ある。
１……フオトマル、２……シンチレータ、３…
…遮蔽体、４……支持棒、５……プリズム、６…
…円錐形ミラー、７……レンズ、８……光フアイ
バー、９……パイプ状支持棒。
FIG. 1 is a sectional view showing an apparatus for measuring radioactivity on the inner wall of a small diameter pipe according to an embodiment of the present invention, and FIGS. 2, 3, and 4 are sectional views showing modifications of the apparatus shown in FIG. 1, respectively.
FIG. 5 is a sectional view showing a small diameter tube inner wall radioactivity measuring device according to another embodiment of the present invention, and FIG. 6 is a sectional view showing a conventional radiation detector used for measuring tube inner wall radioactivity. 1...Photomaru, 2...Scintillator, 3...
...shielding body, 4... support rod, 5... prism, 6...
...Conical mirror, 7...Lens, 8...Optical fiber, 9...Pipe-shaped support rod.
Claims (1)
シンチレータと、このシンチレータに直交２面の
一方を対向させて配置されたプリズムと、このプ
リズムの直交２面の他方に光電面を対向させて配
置されたフオトマルと、前記シンチレータの正面
に窓を有しシンチレータ、プリズムおよびフオト
マルを囲む鉛製の遮蔽体とを具備した小口径管内
壁放射能測定装置。 (2) 測定対象の管内壁に正対させて配置された
シンチレータと、このシンチレータの発光を光学
的手段により受光するように一端が配置された光
フアイバーと、前記シンチレータの正面に窓を有
しシンチレータ、前記光学的手段および光フアイ
バーを囲む鉛製の遮蔽体と、この遮蔽体の頂部に
取着され前記管の軸線方向に延在し前記光フアイ
バーを挿通させて外部へ導くパイプ状支持棒と、
外部に別置きされその光電面に導出された光フア
イバーの他端が光学的に接続されたフオトマルと
を具備した小口径管内壁放射能測定装置。[Claims for Utility Model Registration] (1) A scintillator disposed directly opposite the inner wall of the pipe to be measured, a prism disposed with one of its two orthogonal surfaces facing the scintillator, and A small-diameter tube inner wall radioactivity measuring device comprising a photomal with a photocathode facing the other side of the surface, and a lead shield having a window in front of the scintillator and surrounding the scintillator, a prism, and the photomal. (2) A scintillator disposed directly facing the inner wall of the tube to be measured, an optical fiber having one end disposed so as to receive light emitted from the scintillator by optical means, and a window in front of the scintillator. a lead shield surrounding the scintillator, the optical means and the optical fiber; and a pipe-shaped support rod attached to the top of the shield and extending in the axial direction of the tube, through which the optical fiber is inserted and guided to the outside. and,
A small-diameter tube inner wall radioactivity measuring device comprising a photomal, which is placed separately outside and has the other end of an optical fiber guided to the photocathode and optically connected to the photocathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8172889U JPH0321795U (en) | 1989-07-12 | 1989-07-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8172889U JPH0321795U (en) | 1989-07-12 | 1989-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0321795U true JPH0321795U (en) | 1991-03-05 |
Family
ID=31627921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8172889U Pending JPH0321795U (en) | 1989-07-12 | 1989-07-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0321795U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014149201A (en) * | 2013-01-31 | 2014-08-21 | Toshiba Corp | Photo detection unit and alpha ray measurement device |
-
1989
- 1989-07-12 JP JP8172889U patent/JPH0321795U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014149201A (en) * | 2013-01-31 | 2014-08-21 | Toshiba Corp | Photo detection unit and alpha ray measurement device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0142833A3 (en) | Radiation image read-out apparatus | |
| JPH0321795U (en) | ||
| JPS5574635A (en) | Light pen | |
| JPH0422711U (en) | ||
| NL8700733A (en) | DENTAAL ROENTGEN DEVICE. | |
| JPS63109609U (en) | ||
| JPS6376807U (en) | ||
| JPS62184406U (en) | ||
| JPH028247Y2 (en) | ||
| JPS63200154U (en) | ||
| JPS6230281Y2 (en) | ||
| JPH06242249A (en) | Radiographic image detector | |
| JPS5869206U (en) | Bubble measuring device using optical fiber | |
| JPS62140476U (en) | ||
| JPH0233348U (en) | ||
| EIICHI et al. | Optoelectronic device with optical coupling body and its manufacture | |
| JPH0216080U (en) | ||
| JPS61119119U (en) | ||
| JPS581405U (en) | X-ray irradiation tube | |
| JPS57116233A (en) | Checking device for end surface of optical fiber | |
| JPH0185811U (en) | ||
| JPH01120104U (en) | ||
| DEBOER | Investigation of scintillator and fibre light in plastic scintillation dosimetry(M. S. Thesis) | |
| JPS5842489B2 (en) | light pen | |
| JPS61189234U (en) |