Structure Matters!Welcome to the American Crystallographic Association. The American Crystallographic Association, Inc. (ACA) is a non-profit, scientific organization of over a thousand members in more than thirty-five countries. The ACA was founded in 1949 through a merger of the American Society for X-Ray and Electron Diffraction (ASXRED) and the Crystallographic Society of America (CSA). The objective of the ACA is to promote interactions among scientists who study the structure of matter at atomic (or near atomic) resolution. These interactions will advance experimental and computational aspects of crystallography and diffraction. Understanding the nature of the forces that both control and result from the molecular and atomic arrangements in matter will help shed light on chemical interactions in nature. 2020 Fall RefleXions
Call for NominationsThe ACA recognizes distinguished achievement in the field of crystallography to both mature and early career crystallographers through the presentation of various annual awards and prizes. The ACA is now inviting nominations for its 2022 awards. Find out how to submit a nomination and view past winners. Bau Neutron Diffraction Award Nominations are also being accepted for the ACA Fellows program. View current ACA fellows and find details on how to submit a nomination. Nomination Deadline: April 1, 2021
MembershipMembership in the ACA is open to any person who is actively interested in the purposes of the Association. The ACA welcomes everyone from students to retirees. All of our members contribute to the life and vigor of the Association. Your membership helps the ACA share our scientific passions and accomplishments through different approaches, including the annual conference, our publications and educational outreach. The ACA was established to connect scientists and anyone interested in crystallography and the ACA strives to continue to reach that goal today. As we progress forward the ACA remembers and memorializes our past crystallographic discoveries and achievements. It is with our history and achievements that the ACA hopes to inspire future generations of explorers, scientists and crystallographers. As a student, let the ACA inspire you to dive into physics, math and chemistry. As a grad or undergrad let the ACA help you establish your professional network. Regular members share research, accomplishments and curate industry connections. Retired members help remember our history and encourage future crystallographers.
ACA 2020 ElectionElection season is approaching! Check out the candidates and make sure your profile is up to date with your selected SIGs! 2020 Election & CandidatesHow to Update Your SIG MembershipVote NowThe voting portal will open on Monday, October 26, 2020. If you have any issues accessing or submitting the form please feel free to contact ACA Headquarters. Ballots must be submitted by November 23, 2020 at 11:59 PM EST.
Members! Update your ACA Profile!The ACA offers a directory of members. If you are a member, log into your account and upload a photo and update contact information! Current contact information will ensure you receive timely notices and updates from the ACA. Also, make sure you have chosen your SIGs so that you can cast a vote in the upcoming election. You can find information on how to update your profile HERE.
ACA 2020 Annual Meeting
Public Meeting PageRegistered Attendees: Log In to View Meeting Pages
Special Article: Crystallography & COVID-19With new cases of the coronavirus disease 2019 (COVID-19) climbing steeply across the globe, everyone has an interest in solving COVID-19 challenges, but crystallography has a special role to play. Read an overview about structural science and COVID in a special article published through the ACA.
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