GB993810A - Method and apparatus for determining coating thickness - Google Patents
Method and apparatus for determining coating thicknessInfo
- Publication number
- GB993810A GB993810A GB1890663A GB1890663A GB993810A GB 993810 A GB993810 A GB 993810A GB 1890663 A GB1890663 A GB 1890663A GB 1890663 A GB1890663 A GB 1890663A GB 993810 A GB993810 A GB 993810A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating
- radiation
- thickness
- aluminium
- scaler
- 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
-
- 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
-
- 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
- G01N23/223—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 by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/07—Investigating materials by wave or particle radiation secondary emission
- G01N2223/076—X-ray fluorescence
Landscapes
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
993,810. Measuring coating thickness using radiation. UNITED STATES STEEL CORPORATION. May 13, 1963 [June 6, 1962], No. 18906/63. Heading G1A. The thickness of a coating material on a base material having an atomic number at least three greater than the coating material is measured by directing a primary X-ray beam on to the coating at a potential sufficient to excite the coating but lower than the potential required to excite the base material and measuring the intensity of the resulting characteristic radiation emitted from the coating. In the arrangement shown X-rays from a tube 5 are received by an aluminium coating C on a ferrous base B and the resulting characteristic X-radiation from the coating is detected by a standard flow proportional counter 8 after passing through collimating tubes 10. The signal from the counter 8 is fed through a linear amplifier to a pulse height analyzer 16 which allows only the signals resulting from the characteristic radiation from aluminium to be counted by three high speed binary counters 18 and a six stage decode scaler and timer 20. The scaler and timer 20 are calibrated against known standards so that they provide an indication of the thickness of the aluminium coating. The apparatus is contained in a vacuum chamber 2 evacuated by a pump 4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US20054962A | 1962-06-06 | 1962-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB993810A true GB993810A (en) | 1965-06-02 |
Family
ID=22742178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1890663A Expired GB993810A (en) | 1962-06-06 | 1963-05-13 | Method and apparatus for determining coating thickness |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE633063A (en) |
| FR (1) | FR1358240A (en) |
| GB (1) | GB993810A (en) |
| NL (1) | NL293722A (en) |
-
1962
- 1962-06-06 NL NL293722A patent/NL293722A/xx unknown
-
1963
- 1963-05-13 GB GB1890663A patent/GB993810A/en not_active Expired
- 1963-05-30 BE BE633063A patent/BE633063A/xx unknown
- 1963-06-04 FR FR936909A patent/FR1358240A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE633063A (en) | 1963-12-02 |
| NL293722A (en) | 1963-06-06 |
| FR1358240A (en) | 1964-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3404275A (en) | Method of assaying and devices for the application of said method | |
| US4075480A (en) | Quench determination in liquid scintillation counting systems | |
| GB816062A (en) | Method and apparatus for measuring the thickness of a deposit | |
| GB1145713A (en) | Method and apparatus for counting standardization in scintillation spectrometry | |
| US2769097A (en) | Thickness measuring instrument | |
| JPH03123881A (en) | Method and apparatus for analyzing gamma ray nuclide | |
| Peirson | The γ-ray spectrum of fission products from slow neutron irradiation of uranium 235 | |
| US3748473A (en) | Gauge for determining the percentage by weight of moisture contained in a bulk material transported on a moving conveyor | |
| US3296438A (en) | Nuclear particle detection system and calibration means therefor | |
| GB1193840A (en) | Method of and Apparatus for Determining the Mean Size of Given Particles in a Fluid | |
| GB993810A (en) | Method and apparatus for determining coating thickness | |
| US4283625A (en) | X-Ray fluorescence analysis | |
| US3246151A (en) | Low background beta-ray scintillation spectrometer | |
| US4060728A (en) | Method of measuring the disintegration rate of beta-emitting radionuclide in a liquid sample | |
| GB872464A (en) | Apparatus for measuring the thickness of a coating on a base material | |
| GB1456083A (en) | Gamma ray spectrometer display means | |
| JPS5582006A (en) | Measuring method for thickness | |
| JPS57197410A (en) | Measuring method of adhered amount of high polymer film on metallic plate | |
| FR2335854A1 (en) | X:ray tomography system with collimated beam - uses two stage collimator with parallel plates and has reference level detector | |
| US3398280A (en) | Method and apparatus for determining cooling age of nuclear reactor fuel | |
| Govil et al. | Half-life of the first excited state of I129 | |
| US3154684A (en) | X-ray analysis system with means to detect only the coherently scattered X-rays | |
| GB1100693A (en) | Radiation measuring instrument | |
| US3408496A (en) | Alpha ray excited composition analysis | |
| GB931825A (en) | Method and apparatus for measuring low density atmospheres |