GB1137039A - Through-flow ionisation chamber - Google Patents
Through-flow ionisation chamberInfo
- Publication number
- GB1137039A GB1137039A GB13780/67A GB1378067A GB1137039A GB 1137039 A GB1137039 A GB 1137039A GB 13780/67 A GB13780/67 A GB 13780/67A GB 1378067 A GB1378067 A GB 1378067A GB 1137039 A GB1137039 A GB 1137039A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- envelope
- flange
- gas
- chamber
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J47/00—Tubes for determining the presence, intensity, density or energy of radiation or particles
- H01J47/02—Ionisation chambers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Medicinal Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Radiation (AREA)
Abstract
1,137,039. Ionization chambers. COMMISSARIAT A L'ENERGIE ATOMIQUE. 23 March, 1967 [28 March, 1966], No. 13780/67. Heading H1D. A through-flow ionization chamber for measuring the ion content of a gas has a high tension electrode 22 and a measuring electrode 12 at a potential substantially equal to that of the envelope 6 which is earthed, the measuring electrode 12 having orifices 28 to admit gas to the useful volume of the chamber, which orifices are sufficiently small to substantially confine the electric field to said useful volume with the object of lowering and stabilizing the parasitic collection rate. The electrodes 12 and 22 are supported from a flange 8 of the envelope 6 by insulators 10 and 20. Insulating ring 10 is electrostatically shielded by a flange 29 of electrode 12 and an extension 30 of flange 8. In an arrangement (Fig. 2, not shown), for monitoring the radioactive gas content of an atmosphere, the envelope 6 communicates at one end with a chamber containing a dust filter (32) and a deionization filter, and at the other end with a chamber containing a fan (34) and an amplifier (35). Alternative embodiments (Figs. 3 to 5, not shown) comprise a cylindrical arrangement in which the high tension electrode surrounds the measuring electrode which surrounds a gas inlet tube, and an arrangement with flat plate electrodes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR55291A FR1480257A (en) | 1966-03-28 | 1966-03-28 | Circulating ionization chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1137039A true GB1137039A (en) | 1968-12-18 |
Family
ID=8604869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13780/67A Expired GB1137039A (en) | 1966-03-28 | 1967-03-23 | Through-flow ionisation chamber |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE695036A (en) |
| CH (1) | CH478454A (en) |
| DE (1) | DE1589583B1 (en) |
| ES (1) | ES338578A1 (en) |
| FR (1) | FR1480257A (en) |
| GB (1) | GB1137039A (en) |
| LU (1) | LU53262A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2202369A (en) * | 1987-02-06 | 1988-09-21 | Kernforschungsz Karlsruhe | Radioactive-gas detection apparatus comprising an ionization chamber |
| US7823438B2 (en) | 2005-01-24 | 2010-11-02 | Calectro Ab | Fluid detector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4441024A (en) * | 1981-11-16 | 1984-04-03 | The United States Of America As Represented By The United States Department Of Energy | Wide range radioactive gas concentration detector |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL224264A (en) * | 1957-10-24 | |||
| US3084255A (en) * | 1958-11-13 | 1963-04-02 | Lab For Electronics Inc | Radiation sensitive system |
| DE1123409B (en) * | 1959-06-23 | 1962-02-08 | Inst Staubforschung Und Radioa | Ionization chamber for the detection of beta rays |
| FR1332343A (en) * | 1962-08-16 | 1963-07-12 | Thomson Houston Comp Francaise | Ionization chamber |
-
1966
- 1966-03-28 FR FR55291A patent/FR1480257A/en not_active Expired
-
1967
- 1967-03-06 BE BE695036D patent/BE695036A/xx unknown
- 1967-03-14 DE DE19671589583 patent/DE1589583B1/en active Pending
- 1967-03-23 GB GB13780/67A patent/GB1137039A/en not_active Expired
- 1967-03-23 LU LU53262D patent/LU53262A1/xx unknown
- 1967-03-28 CH CH429567A patent/CH478454A/en not_active IP Right Cessation
- 1967-03-28 ES ES338578A patent/ES338578A1/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2202369A (en) * | 1987-02-06 | 1988-09-21 | Kernforschungsz Karlsruhe | Radioactive-gas detection apparatus comprising an ionization chamber |
| US7823438B2 (en) | 2005-01-24 | 2010-11-02 | Calectro Ab | Fluid detector |
Also Published As
| Publication number | Publication date |
|---|---|
| LU53262A1 (en) | 1967-05-23 |
| CH478454A (en) | 1969-09-15 |
| FR1480257A (en) | 1967-05-12 |
| DE1589583B1 (en) | 1970-12-23 |
| ES338578A1 (en) | 1968-12-01 |
| BE695036A (en) | 1967-08-14 |
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