| 摘要 |
In a method of dating paintings in particular from the last two hundred years isotopes of a selected element are detected which are found in living plants and used for making binding agents of artistic paint. In the detection only the relative concentration of the two isotopes in relation to each other has to be determined. One of them can be radioactive suitably having a half-life period smaller than e.g. 1000 years. For accurate determining even isotopes having shorter half-life periods can be used. For dating paintings alleged to have been made in the 20th century e.g.Sr andSr orCs andCs can be used to decide whether a painting was made before or after the midst of said century. |
