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Calibration of CryojetHT and Cobra Plus Cryosystems used in X-ray diffraction studies

机译:X射线衍射研究中使用的CryojetHT和Cobra Plus低温系统的校准

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摘要

CryoJetHT (Oxford Instruments) and Cobra Plus (Oxford Cryosystems) cryosystems, which are used for sample cooling in X-ray diffraction experiments, have been calibrated. It is shown that the real temperature in the vicinity of the sample differs significantly (the deviation is as high as 8-10 K at low temperatures) from the temperature recorded by authorized sensors of these systems. The calibration results are confirmed by measurements of the unit-cell parameters of GdFe3(BO3)(4) single crystal in the temperature range of its phase transition. It is shown that, to determine the real temperature of a sample, one must perform an independent calibration of cryosystems rather than rely on their ratings.
机译:已对用于X射线衍射实验中样品冷却的CryoJetHT(牛津仪器公司)和Cobra Plus(牛津仪器系统)冷冻系统进行了校准。结果表明,样品附近的实际温度与这些系统的授权传感器记录的温度相差很大(低温下的偏差高达8-10 K)。校准结果通过在相变温度范围内测量GdFe3(BO3)(4)单晶的晶胞参数来确认。结果表明,要确定样品的真实温度,必须对冷冻系统进行独立校准,而不要依赖其额定值。

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