International Standard
ISO 20411:2018
Surface chemical analysis — Secondary ion mass spectrometry — Correction method for saturated intensity in single ion counting dynamic secondary ion mass spectrometry
Reference number
ISO 20411:2018
Edición 1
2018-03
International Standard
Vista previa
ISO 20411:2018
67923
No disponible en español
Publicado (Edición 1, 2018)

ISO 20411:2018

ISO 20411:2018
67923
Idioma
Formato
CHF 96
Convertir Franco suizo (CHF) a tu moneda

Resumen

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.

Informaciones generales

  •  : Publicado
     : 2018-03
    : Norma Internacional para revisar [90.92]
  •  : 1
     : 15
  • ISO/TC 201/SC 6
    71.040.40 
  • RSS actualizaciones

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)