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Carbon dating the Dead Sea Scrolls
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Carbon dating the Dead Sea Scrolls : ウィキペディア英語版
Carbon dating the Dead Sea Scrolls
Carbon dating the Dead Sea Scrolls refers to a series of radiocarbon dating tests performed on the Dead Sea Scrolls, first by the AMS (Accelerator Mass Spectrometry) lab of the Zurich Institute of Technology in 1991 and then by the AMS Facility at the University of Arizona in Tucson in 1994-95. There was also a historical test of a piece of linen performed in 1950 by Willard Libby, the inventor of the dating method.
==Testing==
One of the earliest carbon dating tests was carried out on November 14, 1950. This was on a piece of linen from Qumran Cave 1, the resulting date range being 167 BCE - 233 CE. Libby had first started using the dating method in 1946 and the early testing required relatively large samples, so testing on scrolls themselves only became feasible when methods used in the dating process were improved upon.〔Doudna, G. "Carbon-14 Dating", in ''Encyclopedia of the Dead Sea Scrolls'', Schiffman, Lawrence, & VanderKam, James, eds., Vol.1 (Oxford: 2000)〕 F.E. Zeuner carried out tests on date palm wood from the Qumran site yielding a date range of 70 BCE - 90 CE. In 1963 Libby tested a sample from the Isaiah Scroll, which provided a range of 200 BCE - 1 CE.〔Carmi, Israel, "Radiocarbon Dating of the Dead Sea Scrolls" in ''The Dead Sea Scrolls: Fifty Years after their Discovery. 1947-1997'', Schiffman, Lawrence, Tov, Emanuel, & VanderKam, James, eds., (Jerusalem: IES, 2000) p.881.〕
In 1991 Robert Eisenman and Philip R. Davies made a request to date a number of scrolls, which led to a series of tests carried out in Zurich on samples from fourteen scrolls. Among these were samples from other sites around the Dead Sea, which contained date indications within the text to supply a control for the carbon dating results. A similar battery of tests was carried out in 1994-95 in Tucson, this time with samples from twenty-two scrolls as well as another piece of linen.〔

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