Real-time swelling-series method improves the accuracy of lamellar neutron-diffraction data

Malcolm J. M. Darkes; Jeremy P. Bradshaw

首页> 外文期刊>Acta crystallographica.Section D. Biological crystallography >Real-time swelling-series method improves the accuracy of lamellar neutron-diffraction data

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Real-time swelling-series method improves the accuracy of lamellar neutron-diffraction data

机译：实时swelling-series方法提高了片状中子衍射数据的准确性

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Neutron-diffraction data were collected from stacked bilayers of 1, 2-dioleoyl-sn-glycero-phosphocholine under conditions of increasing relative humidity at both 0 and 8.06% ~2H_2O. Over the period of data collection, the d-repeat of both swelling-series samples increased. Each family of structure factors, representing each of the five orders of diffraction, are shown to lie on smooth curves, allowing structure factors of intermediate d-repeat to be determined. In the case of the 8.06% ~2H_2O data, but not the 0% ~2H_2O data, all observed structure factors lie on a single continuous transform. 8.06% ~2H_2O has a net neutron-scattering density of zero; its use in neutron-diffraction experiments presents a novel application of the so-called 'minus fluid' approach, without mathematical manipulation. The data are used to demonstrate the increased accuracy inherent in this real-time swelling-series approach. A quantitative analysis of errors caused by differences in d-repeat in difference subtractions is presented.

机译：中子衍射数据收集不利的影响2-dioleoyl-sn-glycero-phosphocholine下增加相对湿度条件0和8.06% ~ 2 h_2o。集合,两swelling-series d-repeat增加了样品。因素,每五个订单的代表衍射,显示躺在光滑的曲线,允许中间的结构因素d-repeat待定。8.06% ~ 2 h_2o数据,但不是0% ~ 2 h_2o数据,躺在一个单一的所有观察到的结构因素连续变换。中子散射的密度为零;中子衍射实验提出了小说所谓的“-液”的应用方法,没有数学操作。增加了用于演示的数据实时固有的准确性swelling-series方法。d-repeat差异所导致的错误差减法。

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来源
《Acta crystallographica.Section D. Biological crystallography》 |2000年第1期|48-54|共7页
作者
Malcolm J. M. Darkes; Jeremy P. Bradshaw;
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作者单位

Department of Preclinical Veterinary Sciences, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Summerhall, Edinburgh EH9 1QH, Scotland;

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原文格式 PDF
正文语种英语
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关键词
SOS Calls; Chpher(0); QUANTITATIVE ANALYSISReal timeRelative HumiditySTRUCTURE FACTORSLamellar Pattern;

机译：求救电话;Chpher(0);定量ANALYSISRealtimeRelative HumiditySTRUCTURE FACTORSLamellar模式;

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Real-time swelling-series method improves the accuracy of lamellar neutron-diffraction data

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