X-ray analyzer
US6968043B2 · kind B2 · utility
1Cited by
4References
7Claims
0Family size
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Inventors
Key dates
| Filing date | Jul 24, 2003 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Nov 30, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is disclosed an X-ray analyzer capable of precisely measuring a trace amount of cadmium contained in plastic. The analyzer has an X-ray filter assembly between an X-ray tube having an Rh target and a plastic sample. The filter assembly consists of first, second, and third X-ray filters which are made of zirconium, copper, and molybdenum, respectively. The first through third X-ray filters have thicknesses of about 100 μm, 200 μm, and 40 μm, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.