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Attempt to affect the apparent C-14 age of cotton by scorching in a CO2 environment

机译：尝试通过在CO2环境中烧焦来影响棉花的表观C-14年龄

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One explanation for the radiocarbon dates on the Shroud of Turin being younger than the time of Christ is that the heat from a fire, which scorched a portion of the Shroud, may have affected the C-14 content (dates) on the shroud by affecting molecular exchange between the fabric and atmospheric carbon. This report describes a laboratory test on the susceptibility of cellulose, in the form of cotton, to incorporate carbon from CO2 while it is heated in a closed tube with carbon dioxide until the cotton considerably darkened. To maximize the effect of this hypothetical process, we simulated the shroud material with cotton that had a C-14 level of 0.55 modem (55 pMC, equivalent to 4800 yr), and the atmosphere with pure CO2, which had a C-14 level of 1.3 modem (130 pMC). No measurable C-14 transferred from the gas phase to the solid phase. The implication of this test is that scorching is an unlikely mechanism to affect the apparent age of cellulose-like material. [References: 3]
机译：都灵裹尸布上的放射性碳日期比基督时代年轻的一种解释是，烧焦裹尸布一部分的火热可能影响了裹尸布上C-14的含量（日期），织物和大气碳之间的分子交换。该报告描述了一种实验室测试，测试了棉花形式的纤维素吸收二氧化碳中碳的敏感性，同时将其在封闭的管中与二氧化碳一起加热，直到棉花明显变黑。为了最大程度地发挥这一假设过程的作用，我们用C-14值为0.55调制解调器（55 pMC，相当于4800 yr）的棉花和纯净的CO2值为C-14的棉布模拟了覆盖材料。 1.3调制解调器（130 pMC）。没有可测量的C-14从气相转移到固相。该测试的含义是，焦烧是不可能影响纤维素样材料表观年龄的机制。 [参考：3]

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