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Optical dating was invented in 1984 in the physics department at Simon Fraser University, British Columbia, Canada, by David Huntley and colleagues. It was quickly used by Martin Aitken’s laboratory in Oxford, England, but it was many years before it was adopted elsewhere. Now there are numerous laboratories around the world, though most are in Europe. In 1994 the principles behind Optical dating (and thermoluminescence dating) were extended to include surfaces last seen by the sun before buried, of carved rock types from ancient monuments and artifacts, made of granite, basalt and sandstone, and this has proved possible. The initiator of ancient buildings luminescence dating Prof. Ioannis Liritzis has shown this in several cases of various monuments.
Some mineral grains (e.g., quartz, feldspars, flint, pyroclastic glass) behave as natural radiation dosimeters when buried, storing as trapped electrons (at grain-defect sites) a portion of the energy deposited by background nuclear and cosmic radiations. Both the last exposure to daylight and the last heating event can be dated (but not for the same sample). Daylight empties light-sensitive electron traps; heating empties all electron traps. After burial, ionizing radiations repopulate emptied traps at a nearly constant rate. In the laboratory, traps are again emptied by either heating or intense illumination. The resulting electron-hole recombination (e.g., at grain impurity ions) produces luminescence (TL or OSL). The longer the burial time (the sample's “age”), the larger the number of trapped electrons and the greater the intensity of luminescence. To translate this luminescence into an age in calendar years, two independent tasks are performed: known artificial doses of nuclear radiation (from calibrated radiation sources) are applied to subsamples to scale the signal, yielding an “equivalent dose” or DE value (having units of grays or Gy); and the burial dose rate DR (GY/year) is derived from measured radioactivity in portions of the sample grains and the surrounding sediments. Then the age A = DE/DR, independent of any other chronometric technique.
Any chance of a possible connection of the Hittites with East Asians?
The term Hittite in Cuneiform (the earliest form of writing invented by the Sumerians) appears as Khittae* representing a once powerful nation from the Far East known as the Khitai, also in Hebrew as Khettai, and has been preserved through the centuries in the more familiar term, Cathay.
....The evidence strongly suggests that Ham's grandsons, Heth (Hittites/Cathay) and Sin (Sinites/China), are the ancestors of Mongoloid peoples.