GB1042113A - Improvements in or relating to x-radiation detectors - Google Patents

Improvements in or relating to x-radiation detectors

Info

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
Application number
GB402665A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1042113A publication Critical patent/GB1042113A/en
Expired legal-status Critical Current

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.
GB402665A 1964-02-03 1965-01-29 Improvements in or relating to x-radiation detectors Expired GB1042113A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
Tabrizchi et al. Design and optimization of a corona discharge ionization source for ion mobility spectrometry
US2211668A (en) Electronic device
US3294970A (en) Means comprising a source of coherent radiant energy for the production of ions for mass spectrometry
US3742213A (en) Apparatus and methods for detecting, separating, concentrating and measuring electronegative trace vapors
USH414H (en) Surface ionization source
US5969349A (en) Ion mobility spectrometer
GB2315154A (en) Electron capture detector
GB1537250A (en) Prefilter-ionizer apparatus for use with secondary ion mass spectrometers
GB1326051A (en) Elemental analyzing apparatus
GB1330948A (en) Apparatus for examining a substance by x-ray fluorescenece
Sloane et al. The emission of negative ions from oxide coated cathodes
Herzog et al. Mass Spectroscopic Determination of Photoionization Products
US2953702A (en) Ionisation chamber for radiation measurements
GB945438A (en) Ionization detector
GB1042113A (en) Improvements in or relating to x-radiation detectors
US3011060A (en) X-ray spectrograph
GB1222577A (en) Improvements in and relating to ion cyclotron resonance mass spectrometers
US2837677A (en) Proportional counter tube
US2770735A (en) Non-poisoning mass spectrometer
GB1357263A (en) Ionization chamber
Ueda et al. Sputtering Mass Spectrometer with Cesium Primay Ion Source
Rudat Miniature ion-source-mounted east atom and ion gun for fast atom bombardment and secondary ion mass spectrometry
US3458258A (en) Method of detecting a carbon in the gaseous phase
Poschenrieder et al. Mass spectrometric gas analysis utilizing selective photoionization
GB1086959A (en) Mass spectrometer gas analyzer instrument