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Physical Constants

SIMION 8.1.0 uses CODATA2010 constants (see Wikipedia:CODATA). This differs from the 8.0 manual.

In SIMION 6.0/7.0/8.0, the constants are CODATA1986 values. Dahl2000 notes “The physical constants used in version 6.0 and 7.0 are from the 74th edition of the CRC Handbook of Chemistry and Physics [12] Values of these physical constants (e.g. c, electron mass, and elementary charge) are defined to 8 or 9 significant place accuracy”. The 74th edition (1993-1994) uses CODATA1986, which were the latest CODATA values at that time. SIMION 8.0 also uses these constants.

Note

See these additional sections in this topic in the offline SIMION 8.1.0 help file:
  • List of constants
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