JPS55162076A - Radiation detector - Google Patents
Radiation detectorInfo
- Publication number
- JPS55162076A JPS55162076A JP7075979A JP7075979A JPS55162076A JP S55162076 A JPS55162076 A JP S55162076A JP 7075979 A JP7075979 A JP 7075979A JP 7075979 A JP7075979 A JP 7075979A JP S55162076 A JPS55162076 A JP S55162076A
- Authority
- JP
- Japan
- Prior art keywords
- film
- radioactive gas
- clean air
- air
- main body
- 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
Landscapes
- Measurement Of Radiation (AREA)
Abstract
PURPOSE: To eliminate the contamination for the detection and thus ensure the accurate measurement at all times, by providing the air layer in front of the plastic scintillator to exhaust the contaminated air.
CONSTITUTION: The clean air is led in from outside via pump 9 and ventilation tube 10 each, and thus clean air layer 11 is formed between the front of plastic scintillator 4 and incident window film 8. As a result, the greater part of the radioactive gas can be exhausted outside via the clean air although part of the radioactive gas within measurement container 2 may transmits through film 8. Accordingly, almost no radioactive gas enters directly scintillator 4 to give contamination there, and thus the detection error can be reduced. The film through which the radiation of plastics, beryllium or the like can pass easily is used for film 8. At the same time, the effect of heat exchange is obtained by exhausting the air via the pump. As a result, the sudden change of the temperature can be avoided for the detector main body, thus keeping the detector main body at a constant temperature.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7075979A JPS55162076A (en) | 1979-06-05 | 1979-06-05 | Radiation detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7075979A JPS55162076A (en) | 1979-06-05 | 1979-06-05 | Radiation detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55162076A true JPS55162076A (en) | 1980-12-17 |
Family
ID=13440749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7075979A Pending JPS55162076A (en) | 1979-06-05 | 1979-06-05 | Radiation detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55162076A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5276332A (en) * | 1991-11-29 | 1994-01-04 | Cogema Compagnie Generale Des Matieres Nucleaires | Apparatus for measuring the α activity of a solution |
-
1979
- 1979-06-05 JP JP7075979A patent/JPS55162076A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5276332A (en) * | 1991-11-29 | 1994-01-04 | Cogema Compagnie Generale Des Matieres Nucleaires | Apparatus for measuring the α activity of a solution |
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