American Crystallographic Association

American Crystallographic Association, Inc.
Abbreviation	ACA
Formation	1949
Legal status	Scientific Organisation
Purpose	Promote interactions among scientists who study the structure of matter at atomic resolution
Headquarters	Buffalo, NY
Membership	2,200 in > 60 countries
President	Cora Lind-Kovacs
Vice-President	Allen Oliver
Website	www.amercrystalassn.org

The American Crystallographic Association, Inc. (ACA) is a non-profit, scientific organization for scientists who study the structure of matter via crystallographic methodologies. Since its founding in 1949 it has amassed over 2000 members worldwide.

The association meets annually in July and has several interest groups dealing with specific aspects of crystallography, including fiber diffraction, neutron scattering and powder diffraction.

A quarterly magazine, called ACA RefleXions, is published in addition to a scholarly journal. Structural Dynamics is a peer-reviewed, open access, online-only journal co-published by ACA and AIP Publishing. It highlights research articles on structural determination and dynamics of systems, enabled by the emerging new instruments (e.g. XFELs, high harmonic generation, ultra-short electron sources, etc.) and new experimental and theoretical methodologies. The journal is accepting short communications, topical reviews, and research papers in the following topics: Experimental Methodologies, Theory and Modeling, Surfaces and Interfaces, Materials, Liquids and Solutions, and Biological Systems.

The association presents several awards^[1]