GB1364065A - Ionisation chamber - Google Patents
Ionisation chamberInfo
- Publication number
- GB1364065A GB1364065A GB3779971A GB3779971A GB1364065A GB 1364065 A GB1364065 A GB 1364065A GB 3779971 A GB3779971 A GB 3779971A GB 3779971 A GB3779971 A GB 3779971A GB 1364065 A GB1364065 A GB 1364065A
- Authority
- GB
- United Kingdom
- Prior art keywords
- graphite
- discs
- contact
- rings
- ionization
- 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
Landscapes
- Measurement Of Radiation (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
1364065 Ionization chambers NATIONAL RESEARCH DEVELOPMENT CORP 28 July 1972 [11 Aug 1971] 37799/71 Heading HID An ionization chamber comprises methyl methacrylate discs 1, 2, 4 spaced apart by insu lating rings 5, 6, 7, 8 and carrying on their surfaces in contact with air in the chamber conductive material 14 arranged in a pattern of circular and radial lines occupying only a small proportion of the surfaces. The material 14 can be colloidal graphite held in grooves on the surfaces, contact being made by circumferential graphite regions 15. Graphite coatings 19 between the spacing rings intercept any leakage current between the discs. A filtered air inlet 11 is provided.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3779971A GB1364065A (en) | 1971-08-11 | 1971-08-11 | Ionisation chamber |
CA148,293A CA960378A (en) | 1971-08-11 | 1972-07-31 | Ionization chamber |
US277042A US3884817A (en) | 1971-08-11 | 1972-08-01 | Ionization chamber |
DE2239065A DE2239065A1 (en) | 1971-08-11 | 1972-08-08 | IONIZATION CHAMBER |
DE19727229420U DE7229420U (en) | 1971-08-11 | 1972-08-08 | IONIZATION CHAMBER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3779971A GB1364065A (en) | 1971-08-11 | 1971-08-11 | Ionisation chamber |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1364065A true GB1364065A (en) | 1974-08-21 |
Family
ID=10399083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3779971A Expired GB1364065A (en) | 1971-08-11 | 1971-08-11 | Ionisation chamber |
Country Status (4)
Country | Link |
---|---|
US (1) | US3884817A (en) |
CA (1) | CA960378A (en) |
DE (2) | DE2239065A1 (en) |
GB (1) | GB1364065A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0174691A1 (en) * | 1984-09-10 | 1986-03-19 | Philips Electronics Uk Limited | Ionisation chamber |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4047039A (en) * | 1976-06-03 | 1977-09-06 | General Electric Company | Two-dimensional x-ray detector array |
US4131799A (en) * | 1977-04-01 | 1978-12-26 | Applied Radiation Corporation | Ionization chamber |
US4230944A (en) * | 1979-02-09 | 1980-10-28 | Advanced Instrument Development, Inc. | X-ray system exposure control with ion chamber |
USRE30644E (en) * | 1979-04-26 | 1981-06-09 | General Electric Company | X-ray detector |
EP0358646A1 (en) * | 1987-03-26 | 1990-03-21 | Deutsches Elektronen-Synchrotron DESY | Coaxial cable with screening electrode for use as an ionization chamber |
TWI315540B (en) * | 2006-07-28 | 2009-10-01 | Iner Aec Executive Yuan | Penetration ionization chamber |
US20110095199A1 (en) * | 2009-10-27 | 2011-04-28 | Institute Of Nuclear Energy Research Atomic Energy Council, Executive Yuan | Method to measure current using parallel plate type ionization chamber with the design of guard electrode |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2509700A (en) * | 1947-02-21 | 1950-05-30 | Atomic Energy Commission | Radioactivity measuring device |
US2657316A (en) * | 1950-11-07 | 1953-10-27 | Friedman Herbert | Method of suppressing photoelectric threshold |
US2683234A (en) * | 1952-08-27 | 1954-07-06 | Gen Electric | Ionization chamber |
US2875343A (en) * | 1957-03-14 | 1959-02-24 | Robert D Birkhoff | Personnel dosimeter |
US3132249A (en) * | 1961-02-16 | 1964-05-05 | Ralph C Maggio | Detection, segregation and counting of radiations of different energies |
US3110835A (en) * | 1961-12-06 | 1963-11-12 | Harold G Richter | Flexible geiger counter |
US3601612A (en) * | 1969-08-22 | 1971-08-24 | Atomic Energy Commission | Wire spark chamber with magnetostrictive readout |
-
1971
- 1971-08-11 GB GB3779971A patent/GB1364065A/en not_active Expired
-
1972
- 1972-07-31 CA CA148,293A patent/CA960378A/en not_active Expired
- 1972-08-01 US US277042A patent/US3884817A/en not_active Expired - Lifetime
- 1972-08-08 DE DE2239065A patent/DE2239065A1/en active Pending
- 1972-08-08 DE DE19727229420U patent/DE7229420U/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0174691A1 (en) * | 1984-09-10 | 1986-03-19 | Philips Electronics Uk Limited | Ionisation chamber |
Also Published As
Publication number | Publication date |
---|---|
DE7229420U (en) | 1972-11-16 |
US3884817A (en) | 1975-05-20 |
CA960378A (en) | 1974-12-31 |
DE2239065A1 (en) | 1973-02-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |