GB838144A - Radioactivity warning apparatus - Google Patents
Radioactivity warning apparatusInfo
- Publication number
- GB838144A GB838144A GB3221057A GB3221057A GB838144A GB 838144 A GB838144 A GB 838144A GB 3221057 A GB3221057 A GB 3221057A GB 3221057 A GB3221057 A GB 3221057A GB 838144 A GB838144 A GB 838144A
- Authority
- GB
- United Kingdom
- Prior art keywords
- radiation
- particles
- trapped
- radioactivity
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- G01T7/02—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids
- G01T7/04—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids by filtration
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
838,144. Detecting radioactivity. BARCROSS Ltd. Oct. 15, 1958 [Oct. 15, 1957], No. 32210/57. Class 40 (3). A rise in radioactivity in dust particles in a gas is detected by passing the gas through a filter at a constant rate and detecting the radiation from particles trapped in the filter. Under steady conditions the increase in radiation due to new particles being trapped is balanced by the decrease due to natural decay of activity from the old particles, and the detector output is constant. A rise in output therefore denotes an increased number of radioactive particles being trapped. In the Figure a constant-speed displacement pump 13 sucks air into a chamber 15 via a filter paper 16. A Geiger counter 20 detects the beta radiation from the paper, and a further counter 23 measures the background radiation. Signals from the two counters are combined in a rate meter 22 and their difference operates a recording chart and audible alarm in a unit 25. A further warning is given if the pressure in the chamber 15 rises due to rupture of the filter paper. The Geiger counter can be replaced or supplemented by a scintillation counter and photomultiplier for detecting alpha radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3221057A GB838144A (en) | 1958-10-15 | 1958-10-15 | Radioactivity warning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3221057A GB838144A (en) | 1958-10-15 | 1958-10-15 | Radioactivity warning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB838144A true GB838144A (en) | 1960-06-22 |
Family
ID=10335015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3221057A Expired GB838144A (en) | 1958-10-15 | 1958-10-15 | Radioactivity warning apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB838144A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2803440A1 (en) * | 1978-01-26 | 1979-08-02 | Muenchener Apparatebau Fuer El | ARRANGEMENT FOR MEASURING RADIOACTIVITY CONCENTRATIONS |
| FR2516243A1 (en) * | 1981-11-10 | 1983-05-13 | Novelec | DEVICE, ASSEMBLY AND HEAD FOR DETECTING PARTICLES OF AEROSOL HAVING RADIOACTIVE PROPERTIES |
| WO2013135938A1 (en) * | 2012-03-16 | 2013-09-19 | Universitat Rovira I Virgili | Station for identifying and measuring environmental gamma radiation in real time by means of spectrometry on a paper filter |
-
1958
- 1958-10-15 GB GB3221057A patent/GB838144A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2803440A1 (en) * | 1978-01-26 | 1979-08-02 | Muenchener Apparatebau Fuer El | ARRANGEMENT FOR MEASURING RADIOACTIVITY CONCENTRATIONS |
| FR2516243A1 (en) * | 1981-11-10 | 1983-05-13 | Novelec | DEVICE, ASSEMBLY AND HEAD FOR DETECTING PARTICLES OF AEROSOL HAVING RADIOACTIVE PROPERTIES |
| EP0079079A1 (en) * | 1981-11-10 | 1983-05-18 | NOVELEC Société à Responsabilité limitée dite: | Apparatus and detector head for radioactive aerosol particles |
| WO2013135938A1 (en) * | 2012-03-16 | 2013-09-19 | Universitat Rovira I Virgili | Station for identifying and measuring environmental gamma radiation in real time by means of spectrometry on a paper filter |
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