On behalf of the International Union of Crystallography (IUCr), it is with immense excitement and joy that we cordially extend our warmest invitation to you to join the IUCr for the Twenty-Seventh Congress and General Assembly, set to be held in the magnificent city of Calgary, located in the heart of Alberta, Canada from August 11th-18th, 2026.

Calgary, a city renowned for its breathtaking natural beauty and warm hospitality, has been chosen as the host for this remarkable occasion. Nestled amidst stunning landscapes and boasting a rich cultural heritage, this vibrant metropolis promises to provide an unforgettable experience for all attendees.

8-9:30 AM (PDT)

The 19th International Conference on X-ray Absorption Fine Structure (XAFS2026) will be held in Chiang Mai, Thailand, from 21 to 26 June 2026. Organized under the auspices of the International X-ray Absorption Society (IXAS), this triennial event serves as the foremost global forum for researchers and practitioners in the field of X-ray absorption spectroscopy.

XAFS2026 will bring together scientists, beamline specialists, and interdisciplinary experts to exchange knowledge, foster collaboration, and explore emerging frontiers in XAFS-related research. The scientific program will encompass eleven main topics:

• Advanced X-ray spectroscopies

• Computational and theoretical methods

• Materials science

• Catalysis

• Environmental sciences

• Biological systems

• Geosciences

• Energy-related applications

• Industrial and applied research

• Instrumentation and beamline development

• Cultural heritage and archaeology

Hosted in one of Southeast Asia's most culturally vibrant cities, XAFS2026 is committed to promoting inclusivity, accessibility, and international engagement. The conference welcomes participation from all career stages and geographic regions.

For further details, please visit the official conference website: https://xafs2026.org/XAFS2026/

2025 Pittsburgh Diffraction Conference (PDC)

Hosted by Brookhaven National Laboratory
October 9–12, 2025

On behalf of the Conference Committee, we are delighted to invite you to 82nd annual Pittsburgh Diffraction Conference (PDC). This year’s conference will be held October 9–12, 2025 at Brookhaven National Laboratory, on New York’s beautiful Long Island.
 

The Pittsburgh Diffraction Conference is one of the longest-running scientific meetings in North America focused on the advancement of structural science through diffraction-based methods. Bridging both life sciences and materials sciences, the conference brings together researchers who utilize laboratory-based instruments, X-ray light sources, electron diffraction, and neutron scattering to explore the structure and dynamics of matter. It serves as a vibrant forum for sharing recent scientific breakthroughs, fostering interdisciplinary collaborations, and highlighting innovations across experimental and computational frontiers

This year’s program features a diverse and timely selection of breakout sessions, reflecting key areas of growth in the field. Topics include energy storage, emphasizing structural insights that enable next-generation energy technologies; AI and its applications in the development of emergent materials; novel materials with transformative properties; and the effects of extreme environments on structures, reveling details on dynamic processes and molecular motion that lead to biomolecular functions and a better understanding of complex soft materials.

Conference Web Page and Registration:  

https://www.bnl.gov/pittsburgh-diffraction-conference/index.php 

Important dates:

April 21, 2025               General registration opens
July 31, 2025                Deadline to submit an abstract for an oral/poster presentation
September 19, 2025      General registration closes

Pre-event workshops:

PDF 101: A Hands on Tutorial to Total Scattering Methods (organizers: Milinda Abeykoon, Daniel Olds)

Hands-on Workshop: Crystal Clear Insights: Mastering Protein Crystallization (organizers: Crissy Traver, Vivian Stojanoff)

Evening Events:

Brookhaven National Lab facility tour.
Friday, October 10, 2025
https://www.bnl.gov/pittsburgh-diffraction-conference/nsls2tour.php

Banquet Dinner
Danfords Hotel and Marina
25 E Broadway, Port Jefferson, NY 11777
Date: Friday, October 10, 2025, 7-9 p.m.

 

Awards Dinner
Charles B. Wang Center
100 Nicolls Road, Stony Brook, NY 11794
Date: Saturday, October 11, 2025, 7-9 p.m.

We are excited to announce the International School on Electron Crystallography, which will be held in the charming town of Erice, Italy, from 30 May - 7 June 2025. This event will bring together leading experts, researchers, and students in the field of electron crystallography to explore the latest developments and techniques.

Dates: 30 May - 7 June 2025

Location: Ettore Majorana Foundation and Centre for Scientific Culture, Erice, Italy

About the School:

The International School on Electron Crystallography offers a comprehensive learning experience for participants at all levels, from beginners to advanced researchers. Through lectures, hands-on tutorials, and interactive sessions, attendees will gain valuable insights into the principles and applications of electron crystallography, including electron diffraction, 3D electron diffraction (3D ED), structure determination, and the latest innovations in the field.

Key Topics:

Fundamentals of electron crystallography and diffraction

3D electron diffraction techniques

Structure determination of molecular and inorganic materials

Applications in nanomaterials, pharmaceuticals, and structural biology

Recent advances in instrumentation and data analysis

Who Should Attend:

The school is designed for students, postdocs, and professionals working in electron microscopy, crystallography, materials science, chemistry, physics, and related disciplines. Whether you are new to electron crystallography or looking to deepen your expertise, this school provides a unique opportunity to expand your knowledge and network with experts in the field.

Travel and Grants:

Various travel grants from different organizations will be advertised on the school's webpage to support student participation.

How to Apply:

Details on registration, abstract submission, and travel grant applications will be made available on the official website: https://crystalerice.org/2025/

Join us in Erice for an inspiring week of learning, networking, and exploring the beautiful surroundings of Sicily!

For further information, please visit our website or contact the course directors: Alexander Eggeman (University of Manchester, UK), Mauro Gemmi (Istituto Italiano di Tecnologia, Pisa, IT), Tatiana Gorelik (Forschungszentrum Juelich, DE).

2025 Pittsburgh Diffraction Conference (PDC)

Hosted by Brookhaven National Laboratory
October 9â€"12, 2025

On behalf of the Conference Committee, we are delighted to invite you to 82nd annual Pittsburgh Diffraction Conference (PDC). This year’s conference will be held October 9â€"12, 2025 at Brookhaven National Laboratory, on New York’s beautiful Long Island.

The Pittsburgh Diffraction Conference is one of the longest-running scientific meetings in North America focused on the advancement of structural science through diffraction-based methods. Bridging both life sciences and materials sciences, the conference brings together researchers who utilize laboratory-based instruments, X-ray light sources, electron diffraction, and neutron scattering to explore the structure and dynamics of matter. It serves as a vibrant forum for sharing recent scientific breakthroughs, fostering interdisciplinary collaborations, and highlighting innovations across experimental and computational frontiers

This year’s program features a diverse and timely selection of breakout sessions, reflecting key areas of growth in the field. Topics include energy storage, emphasizing structural insights that enable next-generation energy technologies; AI and its applications in the development of emergent materials; novel materials with transformative properties; and the effects of extreme environments on structures, reveling details on dynamic processes and molecular motion that lead to biomolecular functions and a better understanding of complex soft materials.

Â

Conference Web Page and Registration:Â Â

https://www.bnl.gov/pittsburgh-diffraction-conference/index.phpÂ

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Important dates:

April 21, 2025Â Â Â Â Â Â Â Â General registration opens
July 31, 2025Â Â Â Â Â Â Â Â Deadline to submit an abstract for an oral/poster presentation
September 19, 2025Â Â Â General registration closes

Pre-event workshops:

PDF 101: A Hands on Tutorial to Total Scattering Methods (organizers: Milinda Abeykoon, Daniel Olds)

Hands-on Workshop: Crystal Clear Insights: Mastering Protein Crystallization (organizers: Crissy Traver, Vivian Stojanoff)

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Evening Events:

Brookhaven National Lab facility tour.
Friday, October 10, 2025
https://www.bnl.gov/pittsburgh-diffraction-conference/nsls2tour.php

Banquet Dinner
Danfords Hotel and Marina
25 E Broadway, Port Jefferson, NY 11777
Date: Friday, October 10, 2025, 7-9 p.m.

Awards Dinner
Charles B. Wang Center
100 Nicolls Road, Stony Brook, NY 11794
Date: Saturday, October 11, 2025, 7-9 p.m.

The Polish Crystallographic Meeting, Scientific Workshop and Session of the Young Crystallographers Sections of PCrA will be held at the Institute of Low Temperature and Structure Research of the Polish Academy of Sciences, ul. Okólna 2 in Wrocław.

The Workshop is devoted to selected issues and problems of modern crystallography.

The Scientific Session of the Young Crystallographers Section of PCrAÂ is a forum for exchanging experiences addressed primarily to students, PhD students and young doctors (maximum 5 years after defense).

The topics of the Meeting include basic and applied research on the ideal and real structure of crystals carried out with the use of X-ray radiation obtained both with traditional methods and in synchrotrons, research with the use of neutrons and electrons, problems of symmetry, phase transformations and crystal growth, new research and computational methods and all other aspects of crystallography. The conference is an annual meeting place and a forum for exchanging ideas of all Polish crystallographers.

During the inauguration of the 66th Polish Crystallography Meeting, the winners of the 6th National Crystallography Olympiad will be decorated: http://olimpiadakrystalograficzna.pl.

 At the XXV Congress and General Assembly of the International Union of Crystallography in Prague, it was decided that the 35th edition of the European Crystallographic Meeting would be held in Lviv, Ukraine, in 2025.

 Unfortunately, there is a war in Ukraine, and it is not reasonable to organize a great scientific event in Lviv in 2025. An alternative was thus elaborated where, thanks to a collaboration between the Ukrainian Crystallographic Committee and the Polish Crystallographic Association, the conference site will be Poznan, a city in neighbouring Poland.

Following the success of the previous tri-annual GOLD conferences on the applications of gold in high-technology (Québec 2022; Paris 2018; Cardiff 2015), the GOLD 2025 conference (10th ) will be held on May 11-14, 2025, in San Sebastian, Spain. The event will take place at the Kursaal Convention Center, a splendid venue by the seaside.

In particular, the following topics will be covered:Â

ï‚· Basics of powder diffraction and Rietveld Refinement

ï‚· The profile of a Bragg reflection

ï‚· Determination of the Instrument Resolution Function (IRF) for powder diffractometers

ï‚· Whole Powder Pattern-Fitting techniques (WPPF)

ï‚· The intensity of a Bragg reflection

ï‚· Correction factors for diffraction angles and intensity

ï‚· Methods to develop a starting model for crystal structure determination

ï‚· Penalty-functions, constraints, restraints

ï‚· Rigid Bodies (RB) (flexible polyhedra, molecules, z-matrices)

 Strategies for structure determination, global optimization in direct space, Charge-Flipping (CF)

ï‚· Difference-Fourier-analysis in combination with Rietveld refinement

ï‚· Isotropic and anisotropic microstructural parameters

ï‚· Using the ICDD PDF5+ database for phase identification and str file export

ï‚· Quantitative Phase Analysis (QPA)

ï‚· Different methods for quantifying the amorphous content

ï‚· Alternative ways of describing crystal structures

ï‚· Sequential and parametric Rietveld refinementsÂ

ï‚· Stacking faulted superstructures

ï‚· The making of Rietveld-Plots for publication

ï‚· Basics of total scattering and pair distribution function analysis

ï‚· Obtaining the pair distribution function from total scattering data

ï‚· Determining and accounting for effects of instrumental resolution

ï‚· Small-box crystal structure refinement

ï‚· Modelling nanoparticle structures and particle size distributions

ï‚· Simulated annealing and large-box approachÂ

Main tutors:Â

Sebastian Bette (MPI-FKF), Robert E. Dinnebier (MPI-FKF), Martin Etter (DESY), John Evans (Uni. Durham), Paolo Scardi (Uni. Trento), Maxwell W. Terban (Momentum Transfer)Â Â

We are excited to announce the International School on Electron Crystallography, which will be held in the charming town of Erice, Italy, from 30 May - 7 June 2025. This event will bring together leading experts, researchers, and students in the field of electron crystallography to explore the latest developments and techniques.

Dates: 30 May - 7 June 2025
Location: Ettore Majorana Foundation and Centre for Scientific Culture, Erice, Italy

About the School:

The International School on Electron Crystallography offers a comprehensive learning experience for participants at all levels, from beginners to advanced researchers. Through lectures, hands-on tutorials, and interactive sessions, attendees will gain valuable insights into the principles and applications of electron crystallography, including electron diffraction, 3D electron diffraction (3D ED), structure determination, and the latest innovations in the field.

Key Topics:

• Fundamentals of electron crystallography and diffraction
• 3D electron diffraction techniques
• Structure determination of molecular and inorganic materials
• Applications in nanomaterials, pharmaceuticals, and structural biology
• Recent advances in instrumentation and data analysis

Who Should Attend:

The school is designed for students, postdocs, and professionals working in electron microscopy, crystallography, materials science, chemistry, physics, and related disciplines. Whether you are new to electron crystallography or looking to deepen your expertise, this school provides a unique opportunity to expand your knowledge and network with experts in the field.

Travel and Grants:

Various travel grants from different organizations will be advertised on the school's webpage to support student participation.

How to Apply:

Details on registration, abstract submission, and travel grant applications will be made available on the official website: https://crystalerice.org/2025/

Join us in Erice for an inspiring week of learning, networking, and exploring the beautiful surroundings of Sicily!

For further information, please visit our website or contact the course directors: Alexander Eggeman (University of Manchester, UK), Mauro Gemmi (Istituto Italiano di Tecnologia, Pisa, IT), Tatiana Gorelik (Forschungszentrum Juelich, DE).

The CrysAC Workhop on "Bio-Apatite, humans, archaeology and environment", organized within the activities of the Commission on Crystallography in Art and Cultural Heritage, will take place on September 17, 2024 at the Department of Geosciences of University of Padova.

It will be followed the next day by a short workshop on "Carbonates, humans, archaeology and environment". This workshop invites scientists from research institutions, museums, and conservation bodies, to look at apatite from various points of view from mineralogy, structure, anthropology, archaeometry or possible nano-technology.

The Polish Crystallographic Meeting, Scientific Workshop and Session of the Young Crystallographers Sections of PCrA will be held at the Institute of Low Temperature and Structure Research of the Polish Academy of Sciences, ul. Okólna 2 in Wrocław.

The Workshop is devoted to selected issues and problems of modern crystallography.

The Scientific Session of the Young Crystallographers Section of PCrAÂ is a forum for exchanging experiences addressed primarily to students, PhD students and young doctors (maximum 5 years after defense).

The topics of the Meeting include basic and applied research on the ideal and real structure of crystals carried out with the use of X-ray radiation obtained both with traditional methods and in synchrotrons, research with the use of neutrons and electrons, problems of symmetry, phase transformations and crystal growth, new research and computational methods and all other aspects of crystallography. The conference is an annual meeting place and a forum for exchanging ideas of all Polish crystallographers.