If you have few, you'll want to use a probabilistic model. The model works well when there are a large number of atoms in the sample.The ratio of C-14 to C-12 in the atmosphere's carbon dioxide molecules is about 1.3×10, and this value is assumed constant for the main part of archaeological history since the formation of the earth's atmosphere.Knowing the level of activity of a sample of organic material enables us to deduce how much C-14 there is in the material at present.
The steps are the same as in the case of photon survival.
One scroll, the Book of Isaiah, has been dated at 1917BC ±275 years, certainly long before the time of Christ.
Some of the others are roughly contemporary with Christ.
Since we also know the ratio of C-14 to C-12 originally, we can find the time that has passed since carbon exchange ceased, that is, since the organic material "died".
In the case of the Dead Sea scrolls, important questions required answers. Did they really date from around the time of Christ? Using Libby's radiocarbon dating technique, the scrolls have been dated, using the linen coverings the scrolls were wrapped in.