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  • BSI
    BS ISO 20411:2018 Surface chemical analysis. Secondary ion mass spectrometry. Correction method for saturated intensity in single ion counting dynamic secondary ion mass spectrometry
    Edition: 2018
    $411.69
    / user per year

Description of BS ISO 20411:2018 2018

This document 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.

This document does not apply to time of flight mass spectrometers.

This document is only applicable to elements with minor isotopes. It is not applicable if the element is monoisotopic or contains isotopes with equal abundances.



Standard NumberBS ISO 20411:2018
TitleSurface chemical analysis. Secondary ion mass spectrometry. Correction method for saturated intensity in single ion counting dynamic secondary ion mass spectrometry
StatusRevision Underway
Publication Date2018-03-14
Identical National Standard OfISO 20411:2018
DescriptorsAnalysis, Mass, Chemical analysis and testing, Surface chemistry, Spectroscopy, Surfaces, Ions, Intensity, Secondary
ICS71.040.40 Chemical analysis
CommitteeCII/60
ISBN978 0 580 89880 8
PublisherBSI
Pages24

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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