historical aging has been registered since the last firing of the object. The ‘neutral energy ‘ – ß or NTL ß (alpha) which is the amount of energy emitted by the same material after renewed exposure to radiation from a gauged radioactive source. The ‘annual energy rate ‘ or J D/ D which represents the annual increase of accumulatively stored energy.
These variables interrelate in the following ways: archaeological energy ——————————– = neutral energy archaeological dose —————————– = age annual energy rate a) In a case where archaeological energy can be established the neutral energy curve, in certain areas, runs proportional to the archaeological curve.
The Laboratory Kotalla, as one of the oldest institutes of its kind, is consequently in the fortunate position of being able to take full advantage of theirextensive archives.
Result provides a statement on the last time of firing.
The error limits on the dates obtained are typically in the range of 5 to 10%.