Brok Erik, Krycka Kathryn L, Vreeland Erika C, Gomez Andrew, Huber Dale L, Majkrzak Charles F
NIST Center For Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, United States of America.
Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, United States of America.
J Phys Commun. 2018;2(9). doi: 10.1088/2399-6528/aadf5f.
In the work reported herein, we investigate the practicality of a recently introduced variant of a general phase-sensitive method in small-angle neutron scattering that attempts to address the loss of phase-information as well as the orientational averaging simultaneously-through the use of reference structures in conjunction with finite element analysis. In particular, one possible physical realization of this approach is to employ polarized beams together with a magnetic reference connected to the sample object. We report on a first such practical implementation by successfully recovering the structure of a core-shell nanoparticle system.
在本文所报道的工作中，我们研究了一种最近引入的小角中子散射通用相敏方法变体的实用性，该方法试图通过结合参考结构与有限元分析来同时解决相位信息丢失以及取向平均问题。具体而言，这种方法的一种可能物理实现方式是使用极化光束以及与样品对象相连的磁性参考物。我们通过成功恢复核壳纳米粒子系统的结构，报道了首个此类实际应用。
