In research on mesoscale structure and correlations, small-angle neutron scattering (SANS) is increasingly being employed to map fully three-dimensional distributions of scattered intensity at low momentum transfer. While traditionally SANS experiments and data analysis methods are designed to prioritize the determination of salient information in only one or two dimensions, the trend towards volumetric intensity mapping experiments calls for new software tools to assist with analyzing the resulting datasets. In this paper, we describe the development of a new software module, the GRASP Integrated 3D Plotter ( GRIP ). GRIP adds numerous features to GRASP , a widely used SANS analysis program that was written in MATLAB and developed at the Institut Laue–Langevin, France. The GRIP module provides multiple methods of three-dimensional SANS data visualization and new abilities to perform 1D and 2D cuts in various momentum-space coordinate systems, including reciprocal lattice units relevant for single-crystal studies. GRIP also includes the ability to fit diffraction peaks to a fully three-dimensional ellipsoidal Gaussian function to extract peak parameters including peak intensity, location and width, as well as a built-in calculator for estimating the resolution-deconvolved 3D coherence lengths in a sample. GRIP thus represents a significant addition to GRASP which extends the utility and application of SANS. Valuable advantages are provided, in particular, for `small-angle neutron diffraction' studies of mesoscale correlations in single crystals, such as those due to incommensurate magnetic spin textures like spirals and topological skyrmion lattices.

Paul M. Neves

Jonathan S. White

Journal of Applied Crystallography

凝聚态物质研究、材料科学和生命科学中的许多研究课题利用晶体学方法来研究具有中子、X 射线和电子的晶体和非晶体物质。发表在《应用晶体学杂志》上的文章重点介绍了这些方法及其在识别结构和扩散控制的相变、结构-性能关系、缺陷、界面和表面的结构变化等方面的应用。仪器和晶体学仪器的发展、理论和解释、数值分析和其他相关主题也包括在内。该杂志是晶体学计算机程序信息的主要发表地。

The Journal of Applied Crystallography focuses on various research topics in condensed matter physics, materials science, and life sciences, utilizing crystallographic methods to study the effects of neutrons, X-rays, and electrons on crystalline and amorphous materials. Articles published in this journal emphasize the application of these methods in identifying structures, controlling phase transitions, exploring structure-property relationships, and investigating defects, interfaces, and surface structural changes. Additionally, the journal covers the development of instruments and crystallographic tools, theoretical interpretations, numerical analyses, and other related subjects. It serves as a primary platform for publishing information on crystallographic computer programs.

《Journal of Applied Crystallography》专注于凝聚态物质研究、材料科学和生命科学中的多个研究课题，这些课题利用晶体学方法研究中子、X 射线和电子对晶体和非晶体物质的影响。该期刊发表的文章重点介绍这些方法在识别结构、控制相变、研究结构-性能关系、缺陷、界面及表面结构变化等方面的应用。此外，期刊还涵盖了仪器和晶体学仪器的发展、理论与解释、数值分析及其他相关主题。该杂志是晶体学计算机程序信息的主要发表平台。

Category	Quartile
材料科学	3
材料科学, 晶体学	2
材料科学, 化学综合	3

GRASP Integrated 3D Plotter: GRIP

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