GB1042113A - Improvements in or relating to x-radiation detectors - Google Patents
Improvements in or relating to x-radiation detectorsInfo
- Publication number
- GB1042113A GB1042113A GB402665A GB402665A GB1042113A GB 1042113 A GB1042113 A GB 1042113A GB 402665 A GB402665 A GB 402665A GB 402665 A GB402665 A GB 402665A GB 1042113 A GB1042113 A GB 1042113A
- Authority
- GB
- United Kingdom
- Prior art keywords
- detector
- gas
- rays
- window
- synthetic substance
- 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
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/225—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion
-
- 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
- H01J47/08—Geiger-Müller counter tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
- H01J5/18—Windows permeable to X-rays, gamma-rays, or particles
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Radiation (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
1,042,113. Ionization counters. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Jan. 29, 1965 [Feb. 3, 1964], No. 4026/65. Heading HID. The window 19 of an X-radiation detector comprises a sheet of a synthetic substance, e.g. polyethylene or polypropylene, having a molecular composition substantially solely of carbon and hydrogen and the thickness of which has been reduced to less than 1 Á by stretching. The detector further comprises a wire electrode 10 supported axially by an insulating disc 9 in a cylindrical metal envelope 6 forming a second electrode. A filling of an ionizable gas, e.g. argon, neon, nitrogen or a mixture thereof, and a quenching vapour or gas, e.g. methane, isobutane, alcohol, a halogen or CO 2 , is constantly renewed through a tube 7 and leaves through apertures 8 in the disc 9. An electron beam from a cathode 1 is focused by electrodes 2 on to a specimen plate 3. The resulting X-rays 4 strike an analyzing crystal 5 and are reflected to a collimator 20 on the window 19. These components are mounted in a vacuum-tight envelope (not shown). X-rays not absorbed by the gas filling leave the detector through an aperture 14 covered by a thin plate 22 of synthetic substance. To detect radiation of different wavelengths the crystal 5 and detector may be simultaneously rotated, the latter at twice the angular velocity of the former.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US34201764A | 1964-02-03 | 1964-02-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1042113A true GB1042113A (en) | 1966-09-07 |
Family
ID=23339980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB402665A Expired GB1042113A (en) | 1964-02-03 | 1965-01-29 | Improvements in or relating to x-radiation detectors |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE659135A (en) |
FR (1) | FR1424096A (en) |
GB (1) | GB1042113A (en) |
NL (1) | NL6501040A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2227118A (en) * | 1988-11-30 | 1990-07-18 | Outokumpu Oy | Analyser detector window |
GB2468474A (en) * | 2008-12-09 | 2010-09-15 | Thermo Electron Mfg Ltd | Beta radiation monitor |
-
1965
- 1965-01-28 NL NL6501040A patent/NL6501040A/xx unknown
- 1965-01-29 GB GB402665A patent/GB1042113A/en not_active Expired
- 1965-02-01 BE BE659135A patent/BE659135A/xx unknown
- 1965-02-03 FR FR4170A patent/FR1424096A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2227118A (en) * | 1988-11-30 | 1990-07-18 | Outokumpu Oy | Analyser detector window |
GB2227118B (en) * | 1988-11-30 | 1993-06-16 | Outokumpu Oy | X-ray analyser having a polyimide detector window |
GB2468474A (en) * | 2008-12-09 | 2010-09-15 | Thermo Electron Mfg Ltd | Beta radiation monitor |
GB2468474B (en) * | 2008-12-09 | 2013-12-25 | Thermo Electron Ltd | Beta radiation monitor and method |
US8680476B2 (en) | 2008-12-09 | 2014-03-25 | Thermo Electron Limited | Beta radiation monitor and method |
Also Published As
Publication number | Publication date |
---|---|
BE659135A (en) | 1965-08-02 |
FR1424096A (en) | 1966-01-07 |
NL6501040A (en) | 1965-08-04 |
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