Celebrating our Extraordinary Early Career Members

Early career scientists at ACA make remarkable contributions shaping our present and inspiring our future. Their audacity, innovation, inclusivity, and resilience remind us that career stage is no barrier to making a meaningful impact. Let us celebrate and support these exceptional individuals, recognizing their extraordinary achievements and empowering them to continue their invaluable work. 

AVL: Submit a Video!  

The Education Committee continues to collect videos for the educational video library project.  Once done this library will prove to be a powerful tool for sharing knowledge of structural science.  We invite you to contribute your expertise by submitting educational videos to be included in our growing library.


We are currently reviewing submissions on a quarterly basis with videos submitted by students, postdocs, and junior faculty (within 10 years of PhD) being eligible for a $500 (USD) prize. Videos will be evaluated by the Young Scientists Interest Group and the Education Committee will award the winner. The first 10 submission before the June 15, 2023 deadline will be automatically eligible for a $100 (USD) prize.

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RefleXions Spring 2023


Membership @ ACA

Crystallography and structural science have been and continue to be on the forefront of major discoveries in the life sciences, medicinal chemistry, and materials science. The American Crystallographic Association, Inc. (ACA) is the home for over 1,000 structural scientists all over the world who are united by the common purpose to “promote interactions among scientists who study the structure of matter at atomic (or near atomic) resolution”.



Membership 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.  Read about all of the benefits that an ACA membership can bring to you...

Warren Award Deadline Extended! 

The deadline to submit nominations for the Bertram Eugene Warren Diffraction Physics Award has been extended to June 15thPlease send your completed nomination packet to [email protected] by 11:59 PM ET on June 15, 2023.

Read More About Bertram Eugene Warren
Read More About the Award & Past Winners
Download the Award Nomination Form

 If you know a commendable individual, this is the opportunity to recognize their contributions by nominating them!

Warren's groundbreaking work has not only expanded our knowledge of diffraction but has also paved the way for practical applications in various fields, including optics, acoustics, and telecommunications. 

To honor Warren, the ACA has established this award to recognize an important recent contribution to the physics of solids or liquids using X-ray, neutron, or electron diffraction techniques.  Recent winners include Simon Billinge (2018) and Jacqueline M. Cole (2021).  


Annual SIG Meetings

It's that time of year! The Annual SIG Meetings have been scheduled.  Check out the list, register to attend and then save the date!  

Scientific Interest Groups 

ACA2023: Attendees

We are delighted to extend an invitation for you to attend the 73rd annual meeting of the American Crystallographic Association which will be held from Friday, July 7th to Wednesday, July 12th, 2023 as a fully in-person meeting. Scientists interested in biological, chemical, and material structures will travel to the waterfront in Baltimore, MD. 

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