A Null Method for the Comparison of Two Ion Currents in a Mass Spectrometer
Open Access
- 1 May 1947
- journal article
- conference paper
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 18 (5) , 294-297
- https://doi.org/10.1063/1.1740940
Abstract
A method of determining the ratio of two small currents which vary intermittently or continuously, but always have the same relative magnitudes, is described. Although applied only to the case of making precise measurement of ratio of two ion currents in a mass spectrometer for the purpose of measuring the relative abundance of isotopes, the method would be useful in other applications as well.Keywords
This publication has 3 references indexed in Scilit:
- A New Mass Spectrograph and the Isotopic Constitution of NickelPhysical Review B, 1941
- A Mass Spectrometer for Routine Isotope Abundance MeasurementsReview of Scientific Instruments, 1940
- The photometry of mass-spectra and the atomic weights of krypton, xenon and mercuryProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1930