ISO 20411:2018
Current
The latest, up-to-date edition.
Surface chemical analysis — Secondary ion mass spectrometry — Correction method for saturated intensity in single ion counting dynamic secondary ion mass spectrometry
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English
09-03-2018
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ISO 20411:2018 specifies a method for determining the maximum count rate for an acceptable limit of divergence from linearity of the intensity scale in pulse counting magnetic sector-type secondary ion mass spectrometers or quadrupole secondary ion mass spectrometers. It uses a test based on depth profile analysis of two isotopes in a reference material which has a gradual concentration change between low and high concentration regimes. It also includes a correction method for saturated intensity caused by the dead time of the detector. The correction can increase the intensity range for 95 % linearity so that a higher maximum count rate can be employed for those spectrometers for which the relevant correction equations have been shown to be valid.
ISO 20411:2018 does not apply to time of flight mass spectrometers.
ISO 20411:2018 is only applicable to elements with minor isotopes. It is not applicable if the element is monoisotopic or contains isotopes with equal abundances.
| Committee |
ISO/TC 201/SC 6
|
| DevelopmentNote |
Supersedes ISO/DIS 20411. (03/2018)
|
| DocumentType |
Standard
|
| Pages |
15
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| JIS K 0158:2021 | Identical |
| BS ISO 20411:2018 | Identical |
| ISO 18115-1:2013 | Surface chemical analysis — Vocabulary — Part 1: General terms and terms used in spectroscopy |
| ISO 18115-2:2013 | Surface chemical analysis Vocabulary Part 2: Terms used in scanning-probe microscopy |
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