GB961492A - Method for determining the thickness of thin coatings based on a polymer or copolymercontaining halogen - Google Patents

Method for determining the thickness of thin coatings based on a polymer or copolymercontaining halogen

Info

Publication number
GB961492A
GB961492A GB3306862A GB3306862A GB961492A GB 961492 A GB961492 A GB 961492A GB 3306862 A GB3306862 A GB 3306862A GB 3306862 A GB3306862 A GB 3306862A GB 961492 A GB961492 A GB 961492A
Authority
GB
United Kingdom
Prior art keywords
film
tube
thickness
radiation
halogen
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
GB3306862A
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.)
Solvay SA
Original Assignee
Solvay SA
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 Solvay SA filed Critical Solvay SA
Publication of GB961492A publication Critical patent/GB961492A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01N23/20—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 using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
    • G01N23/203—Measuring back scattering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

961,492. Linear-dimension gauges; beta-ray backscattering. SOLVAY & CIE. Aug. 28, 1962 [Aug. 30, 1961], No. 33068/62. Headings G1A and G1M. The thickness of a halogen-containing polymer or copolymer coating deposited on a film of material, such as regenerated cellulose or polyethylene, having a mean atomic number different from that of the coating, is determined by measuring the intensity of back-scattered #-radiation incident on the film and coating and coming from a source of pure #-radiation such as carbon-14 or nickel-63. The supporting film must have a thickness greater than the saturation length (so that its contribution to the back-scattered radiation is constant). The Geiger-Mueller measuring tube 2 may be calibrated by taking readings using coatings of different known thickness and the virgin film. The film is supported beneath the tube 2 on a perforated disc 10 and held by suction, applied from below, via tube 11. An arm 8 supports the tube 2 above the sample. The radio-active material is,in the case of carbon- 14 placed in a groove 3, a modified construction ' being used for nickel-63, which has weaker radiation, so that the distances between the source, the film and the window of the G.-M. tube can be reduced considerably.
GB3306862A 1961-08-30 1962-08-28 Method for determining the thickness of thin coatings based on a polymer or copolymercontaining halogen Expired GB961492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE484235 1961-08-30

Publications (1)

Publication Number Publication Date
GB961492A true GB961492A (en) 1964-06-24

Family

ID=3844595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3306862A Expired GB961492A (en) 1961-08-30 1962-08-28 Method for determining the thickness of thin coatings based on a polymer or copolymercontaining halogen

Country Status (4)

Country Link
BE (1) BE607694A (en)
CH (1) CH396426A (en)
GB (1) GB961492A (en)
NL (1) NL282116A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2651023A1 (en) * 1975-11-11 1977-05-18 Fondedile Spa PROCESS FOR MANUFACTURING A BASE PILE FOR ALTERNATIVE PRESSURE AND TENSION LOADS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2651023A1 (en) * 1975-11-11 1977-05-18 Fondedile Spa PROCESS FOR MANUFACTURING A BASE PILE FOR ALTERNATIVE PRESSURE AND TENSION LOADS

Also Published As

Publication number Publication date
CH396426A (en) 1965-07-31
NL282116A (en)
BE607694A (en)

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