hrpd meaning in English

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The hrpd , wich is designed for the study of crystal structure and magnetic structure of materials , was simulated and optimized
对高分辨粉末衍射谱仪的设计方案进行了模拟和优化研究，该谱仪主要用于材料的晶体结构和磁结构研究。
According to the demands of neutron scattering instruments to be built at china advanced research reactor ( carr ) , the designs of several new instruments , i . e . two cold neutron guides ( cng ) , one neutron stress diffractometer and one high resolution neutron powder diffactometer ( hrpd ) , have been simulated and optimized using monte - carlo simulation softwares , mcstas and vitess , first . requirement on the size of the cold neutron source ( cns ) by cngs has been also studied . the results of this thesis have provided essential data as a basis of the neutron instruments designs
本论文结合当前中国先进研究堆( chinaadvancedresearchreactor ， carr )中子散射工程谱仪建设的迫切需要，选择国际上广泛使用的通用中子散射谱仪模拟软件mcstas和vitess作为模拟研究工具，首次对若干台新建谱仪的设计方案进行了全面的模拟和优化研究，包括两条冷中子导管、中子应力衍射仪和高分辨中子粉末衍射仪，并配合冷源设计研究了导管对冷源尺寸的要求。