Conversion of atomic mass to TwinCAT-compatible constants.
Derived from periodictable
Per the public domain Python library periodictable:
Atomic Weights and Isotopic Composition [#Coursey]. The atomic weights are available for elements 1 through 112, 114, & 116 and isotopic compositions or abundances are given when appropriate. The atomic weights data were published by Coplen [#Coplen] in Atomic Weights of the Elements 1999, (and include changes reported from the 2001 review in Chem. Int., 23, 179 (2001)) and the isotopic compositions data were published by Rosman [#Rosman]_ and Taylor [#Taylor]_ in Isotopic Compositions of the Elements 1997. The relative atomic masses of the isotopes data were published by Audi [#Audi]_ and Wapstra [#Wapstra]_ in the 1995 Update To The Atomic Mass Evaluation.
.. [#Coursey] Coursey. J. S., Schwab. D. J., and Dragoset. R. A., NIST, Physics Laboratory, Office of Electronic Commerce in Scientific and Engineering Data. .. [#Coplen] Coplen. T. B. : U.S. Geological Survey, Reston, Virginia, USA. .. [#Rosman] Rosman. K. J. R. : Department of Applied Physics, Curtin University of Technology, Australia. .. [#Taylor] Taylor. P. D. P. : Institute for Reference Materials and Measurements, European Commission, Belgium. .. [#Audi] Audi. G. : Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, Orsay Campus, France. .. [#Wapstra] Wapstra. A. H. : National Institute of Nuclear Physics and High-Energy Physics, Amsterdam, The Netherlands.