ASTM International - ASTM E2426-10(2019)

Standard Practice for Pulse Counting System Dead Time Determination by Measuring Isotopic Ratios with SIMS

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Organization: ASTM International
Publication Date: 1 January 2019
Status: active
Page Count: 3
ICS Code (Physicochemical methods of analysis): 71.040.50
significance And Use:

5.1 Electron multipliers are commonly used in pulse-counting mode to detect ions from magnetic sector mass spectrometers. The electronics used to amplify, detect and count pulses from the electron... View More

scope:

1.1 This practice provides the Secondary Ion Mass Spectrometry (SIMS) analyst with a method for determining the dead time of the pulse-counting detection systems on the instrument. This practice also allows the analyst to determine whether the apparent dead time is independent of count rate.

1.2 This practice is applicable to most types of mass spectrometers that have pulse-counting detectors.

1.3 This practice does not describe methods for precise or accurate isotopic ratio measurements.

1.4 This practice does not describe methods for the proper operation of pulse counting systems and detectors for mass spectrometry.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Document History

ASTM E2426-10(2019)
January 1, 2019
Standard Practice for Pulse Counting System Dead Time Determination by Measuring Isotopic Ratios with SIMS
1.1 This practice provides the Secondary Ion Mass Spectrometry (SIMS) analyst with a method for determining the dead time of the pulse-counting detection systems on the instrument. This practice also...
June 1, 2010
Standard Practice for Pulse Counting System Dead Time Determination by Measuring Isotopic Ratios with SIMS
Electron multipliers are commonly used in pulse-counting mode to detect ions from magnetic sector mass spectrometers. The electronics used to amplify, detect and count pulses from the electron...
November 1, 2005
Standard Practice for Pulse Counting System Dead Time Determination by Measuring Isotopic Ratios with SIMS
Electron multipliers are commonly used in pulse-counting mode to detect ions from magnetic sector mass spectrometers. The electronics used to amplify, detect and count pulses from the electron...
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