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# European Neutron Scattering Association: The European Neutron Scattering Association (ENSA) represents the scientific community in Europe that uses neutron sources to explore the structure and dynamics of materials. It brings together national user groups to coordinate strategy, strengthen collaboration, and advocate for world‑class neutron research. ENSA works to ensure efficient use of existing facilities while supporting long‑term planning for future neutron sources. The association promotes training, innovation, and opportunities for young scientists across a broad range of disciplines. Through its initiatives and partnerships, ENSA helps secure a vibrant and sustainable future for neutron science in Europe.

## Sitemaps
[XML Sitemap](https://ensa-neutron.eu/sitemap_index.xml): Includes all crawlable and indexable pages.

## Posts
- [ENSA New Name & New Executive Board](https://ensa-neutron.eu/general/ensa-new-name-new-executive-board/): ENSA has voted to change its name to the European Neutron Science Association (from the European Neutron Scattering Association) at its recent meeting of delegates at the Budapest Neutron Centre in Hungary. The Chair and twelve delegates were present in person while three delegates joined online.
- [Bertaut-Prize-Call 2026 – open](https://ensa-neutron.eu/general/bertaut-prize-call-open/): See also:
- [ENSA Position Paper 2025](https://ensa-neutron.eu/general/ensa-position-paper-2025/): ENSA has published its Position Paper on the status and future of neutron scattering in Europe:
- [ENSA Prizes awarded at the ICNS 2025](https://ensa-neutron.eu/general/ensa-prizes-awarded-at-the-icns2025/): The award ceremonies for the ENSA prizes were held during the ICNS2025 in Copenhagen (Denmark) and Lund (Sweden) on 6-10 July 2025.
- [Rendering the European neutron research landscape](https://ensa-neutron.eu/brightness2/rendering-the-european-neutron-research-landscape/): The article "Rendering the European neutron research landscape" is now published in Nature Scientific Report and available online. It reports on a new semi-supervised learning method to render the European neutron community of scientists and "tell where neutron-scattering scientists are, and what they do".
- [ENSA prizes 2025 – calls open](https://ensa-neutron.eu/general/ensa-prizes-2025-calls-open/)
- [Welcome to Finland](https://ensa-neutron.eu/news/welcome-to-finland/): 30 April 2024: The ENSA board expresses a warm welcome to Finland as a new member of the European neutron scientist community! Finland will be represented by Paavo Penttilä from the Department of Bioproducts and Biosystems, Aalto University, Espoo, Finland.
- [Astrid Schneidewind elected as new chair of ENSA](https://ensa-neutron.eu/news/astrid-schneidewind-elected-as-new-chair-of-ensa/): At the ENSA meeting held on November 15th 2023 at PSI in Switzerland, Dr. Astrid Schneidewind was elected chair of ENSA. Dr Schneidewind is instrument scientist of PANDA, a cold three axis spectrometer located at MLZ and operated by FZ Jülich. She takes over the role of ENSA chair after Prof Henrik Rønnow.
- [ENSA-ESUO Joint Meeting held at PSI](https://ensa-neutron.eu/news/ensa-esuo-joint-meeting-held-at-psi/): On 13-14 November 2023, ENSA and ESUO (European Synchrotron User Organization) held a joint meeting in conjunction with a meeting on European data policy organized by the DAPHNE4NFDI (DAta from PHoton and Neutron Experiments) project.
- [Stefano Deledda elected as new vice-chair](https://ensa-neutron.eu/news/stefano-deledda-elected-as-new-vice-chair-2/): At the ENSA meeting held during the ECNS2023, Dr. Stefano Deledda was elected ENSA vice-chair. Dr Stefano Deledda is a senior scientist at the Institute for Energy Technology (IFE) in Norway and takes over the vice-chair role after Dr. Lambert van Eijck.
- [Welcome to Portugal](https://ensa-neutron.eu/news/welcome-to-portugal/): The ENSA board expresses a warm welcome to Portugal as a new member of the European neutron scientists community! Portugal will be represented by the president of the Portugese Groups of Neutron and Muon Users NeMPo, Maria Paula Marques.
- [Tribute to Prof. Dr. Michael Steiner](https://ensa-neutron.eu/in-memory/tribute-to-prof-dr-michael-steiner/): ENSA joins the Helmholtz-Zentrum Berlin in the tribute to Prof. Dr. Michael Steiner, who passed away on the 5th of November 2022 at the age of 79, in Berlin. In addition to his many scientific contributions and his efforts for neutron scattering at the Hahn Meitner Institut and its evolution into the Helmholtz-Zentrum Berlin, Michael worked for our community as chair of ENSA during the period 2009-2014.
- [Tribute to Dr. Hannu Muttka](https://ensa-neutron.eu/in-memory/tribute-to-dr-hannu-muttka/): ENSA joins ILL in the tribute to Hannu Muttka, who passed away earlier this year. Among the many scientific adventures he participated in and responsibilities he took upon himself, Hannu Muttka acted as the ENSA chair from October 2004 to October 2006. He shall be greatly missed.
- [Call for nominations ENSA PRIZES](https://ensa-neutron.eu/general/call-for-nominations-ensa-prizes/): The ENSA Awards for 3 Prizes for 2021 are held in 2022. Information can be found on the websites of the Walter Hälg Prize (sponsored by SwissNeutronics), the Erwin Felix Lewy Bertaut Prize (shared between ECA and ENSA) and the Neutron Instrumentation and Innovation Award (sponsored by Mirrotron)
- [prof. Ferenc Mezei wins Gothenburg Lise Meitner Award](https://ensa-neutron.eu/news/prof-ferenc-mezei-wins-gothenburg-lise-meitner-award-2/): We would like to congratulate our much appreciated colleague and distinguished scientist Prof. Ference Mezei as a laureate of the
- [QENS/WINS: online 2021 + San Sebastian 2022](https://ensa-neutron.eu/conferences/qens-wins-online-2021-san-sebastian-2022/): As you may remember, QENS/WINS2020 could not be held as planned, and was postponed to 17-21 May 2021. In view of the development of the pandemics, we have rescheduled the face-to-face conference again.
- [Protected: for ENSA delegates](https://ensa-neutron.eu/brightness2/for-ensa-delegates/): the new analysis <----- click here for the 'balloons' explaining our choice of the topic/container names. (https://ensa.tudelft.nl/topics/15topics.html)
- [Artificial Intelligence interpretation of our community](https://ensa-neutron.eu/brightness2/artificial-intelligence-interpretation-of-our-community/)
- [QENS/WINS 2020 San Sebastian](https://ensa-neutron.eu/general/qens-wins-2020-san-sebastian/): The QENS/WINS 2020 Conference will be celebrated in San Sebastian (Spain), from June 8 to June 12, 2020. 
- [Trends and Perspectives in Neutron Scattering: Quantum Materials From Bulk to Nano](https://ensa-neutron.eu/general/trends-and-perspectives-in-neutron-scattering-quantum-materials-from-bulk-to-nano/): JCNS is glad to announce the JCNS Workshop “Trends and Perspectives in Neutron Scattering” that  will take place in Tutzing (Germany) on the shores of the Starnberg lake, from October 13 - 16, 2020.  The conference is organized by the Jülich Centre for Neutron Science (JCNS), Forschungszentrum Jülich. As a unique probe for studying magnetism, neutron scattering matches the entire range of length- and time-scales relevant for many novel magnetic and electronic phenomena.  The workshop is devoted to the area of quantum materials in all their forms. 
- [Henrik Rønnow elected as new Chair](https://ensa-neutron.eu/general/henrik-ronnow-elected-as-new-chair/): We are very proud :-) to announce that prof. Henrik Rønnow is elected as our new Chair! Henrik has been very actively involved in the business of ENSA of the last years and we look forward to work with him even more intensely in the coming years.
- [Closure of Orphee reactor LLB](https://ensa-neutron.eu/general/closure-of-orphee-reactor-llb/): The planned closure of the Orphee reactor at Laboratoire Leon Brillouin in Saclay, Paris since a few days means the loss of a great piece of research infrastructure in neutron scattering science. The expertise of the staff involved is of course maintained and applied but training future neutron scientists cannot be done anymore at this bright neutron source.
- [Happy birthday Ultra Cold Neutron!](https://ensa-neutron.eu/general/happy-birthday-ultra-cold-neutron/): A musical celebration of the Ultra Cold Neutron in Nature by Hartmut Abele and co-workers:
- [ECNS 2019: a very successful conference!](https://ensa-neutron.eu/general/ecns-2019-a-very-successful-conference/): An impression of the Saint Petersburg ECNS 2019 conference: the marvelous conference venue MANEGE CENTRAL EXHIBITION HALL in the center of St Petersburg, next to the St. Isaac Cathedral; the opening session on Sunday afternoon by the officials; the 25th celebration of ENSA, celebrated with the user community and a beautiful cake and concert, which were generously offered by the local ECNS organisers: many thanks!
- [First Instrumentation & Innovation Prize](https://ensa-neutron.eu/general/first-instrumentation-innovation-prize/): The winner of the inaugural 2019 ENSA Neutron Instrumentation and
Innovation Award is Markus Appel. “For
ground-breaking advances of the neutron back-scattering technique
leading to extended dynamic range, higher resolution and better
signal-to-noise on the IN16B spectrometer at ILL”. Markus Appel,
currently a staff scientist at ILL, has since his PhD from TU
Darmstadt devoted his talents to implementing innovative improvements
to the neutron backscattering technique. These span from conceptual
changes such as moving from monochromator to time-of-flight, over
clever rephrasing of choppers to achieve ultra-low background, to the
material and mechanical challenge of implementing GaAs analyzers.
Together these improvements to the IN16B spectrometer at ILL has
enabled a wide range of exciting science by a large number of user
groups - perfectly embellishing the spirit of the Neutron
Instrumentation and Innovation Award. More information about the
award, sponsored by Mirrotron, can be found here
(https://ensa.tudelft.nl/awards/). Markus Appel from ILL is delivering a talk on backscattering spectroscopy after receiving the inaugural ENSA Neutron Instrumentation and Innovation Award of 2019.
- [The 2019 Walter Hälg Prize Winner: Kell Mortensen](https://ensa-neutron.eu/general/certificate-for-the-halg-award-kell-mortensen/): Kell has been a world leader in the application of small-angle neutron scattering (SANS) to soft matter systems, in particular, polymers for three decades. He has contributed numerous fundamental advances to our understanding of the thermodynamics and dynamics of soft materials along with developing innovative in-situ techniques.
- [Work in progress](https://ensa-neutron.eu/general/work-in-progress/): The previous ENSA website has been blocked for some time now, due to technical problems. We are constructing a new site at this moment. Please bear with us.
- [ECNS 2019 St. Petersburg](https://ensa-neutron.eu/general/ecns-2019-st-petersburg/): The upcoming European Conference for Neutron Scattering will be held in the beautiful city of Saint Petersburg from 30 June until 05 July 2019.
- [UCANS 8](https://ensa-neutron.eu/general/ucans-8/): The 8th International Meeting of the Union for Compact Acceleration-driven Neutron Sources will be held in Paris from July 8-11 2019. For the programme see https://ucans8.sciencesconf.org/
- [Hello Neutron Scatterers!](https://ensa-neutron.eu/news/hello-neutron-scatterers/): Welcome to the new website of the European Neutron Scattering Association (ENSA).

## Pages
- [ENSA publications](https://ensa-neutron.eu/ensa-publications/): 2025-IUCrJ-12-FAIRData-Murphy 2025-Velichko-ScientificReports-rendering the EuropeanLandscape-s41598-025-88099-w
- [ENSA Delegates](https://ensa-neutron.eu/delegates/): Following Russia’s aggression, European countries have put into place several (economic) sanctions against Russia, some of which impacts scientific collaborations. Among the national delegates to ENSA, there is a Russian delegate and a Russian observer.
- [Documents from ICNS 2025 Copenhagen, Denmark](https://ensa-neutron.eu/documents_icns_2025/): Here you find material created at ICNS2025 in preparation and result of the Sessions: Topical Exchange “Future Trends in Neutron Science – User Needs and Community Collaboration”.
- [Downloads](https://ensa-neutron.eu/download/): Documents provided by ENSA for download - please cite.
- [Archives](https://ensa-neutron.eu/archives/)
- [Last year winners of 2024](https://ensa-neutron.eu/last-year-winners-of-2024/): Dr. Daniel Mazzone from the Paul Scherrer Institut (PSI) in Villigen, Switzerland has been awarded with the Erwin Félix Lewy Bertaut Prize.
- [About the Walter Hälg Prize](https://ensa-neutron.eu/about-the-walter-halg-prize/): Walter Hälg, the pioneer of reactor technology and neutron scattering in Switzerland, passed away peacefully on December 28, 2011 at the age of 94. He was well known to the world wide neutron scattering community not only through his numerous contributions in instrumentation and science, but also by his generous sponsorship of the Walter Hälg Prize which has been awarded biennially to distinguished scientists by the European Neutron Scattering Association (ENSA) since 1999.
- [About Neutron Instrumentation and Innovation Prize](https://ensa-neutron.eu/about-neutron-instrumentation-and-innovation-prize/): The inaugural 2019 Neutron Instrumentation and Innovation Award sponsored by Mirrotron.
- [About Erwin Felix Lewy Bertaut price](https://ensa-neutron.eu/about-erwin-felix-lewy-bertaut-price/): The Bertaut Prize is presented to a young scientist (within 8 years of completing their PhD thesis) who has a clear connection to the ECA/ENSA region, in recognition of significant experimental, methodological, or theoretical contributions to the study of matter through crystallographic or neutron scattering techniques.
- [European Neutron Science Association (ENSA)](https://ensa-neutron.eu/): The European Neutron Science Association (ENSA) is an affiliation of national neutron‑scattering societies and committees across Europe, active since the early 1990s when it began coordinating efforts for major neutron‑science initiatives. It represents the scientific user community that relies on neutron sources for research in physics, chemistry, materials science, biology, and engineering. ENSA’s mission is to identify community needs, optimize the use of existing neutron facilities, support long‑term planning for future sources, and promote training and opportunities for young scientists. The association also provides a platform for coordination, communication, and strategic development among European neutron facilities. ENSA operates as a distributed organization rather than a single physical headquarters, with activities coordinated through national delegates and its board. It may be noted that ENSA voted to change its name from the European Neutron Scattering Association in May 2026.
- [Contact Us](https://ensa-neutron.eu/contact-us/): Contact us if you have any questions
- [ENSA News](https://ensa-neutron.eu/news/)
- [Imprint](https://ensa-neutron.eu/imprint/): The European European Neutron Scattering Assocication (ENSA) is an Association internationale sans but lucratif (AISBL).
- [Past Events](https://ensa-neutron.eu/past-events/): The International Conference on Neutron Scattering was be held in the beautiful city of Copenhagen in Denmark from 6th to 10th July, 2025.
- [Upcoming Events](https://ensa-neutron.eu/upcoming-events/): LYNGBY, DENMARK : The European Spallation Source (ESS) has officially announced its Data Management and Scientific Computing (DMSC) Summer School, scheduled to take place from August 24–28, 2026.
- [Structure and governance of ENSA](https://ensa-neutron.eu/structure-and-governance/): The European Neutron Science Association (ENSA) is built around a network of national delegates who represent the neutron science user communities of their respective countries. Each participating nation appoints one or more delegates, ensuring that the full diversity of Europe’s scientific landscape is reflected in ENSA’s discussions and decisions. These delegates form the core of the association’s governance, providing insight into national priorities, identifying community needs, and shaping the strategic direction of neutron‑scattering research across Europe. Their collective expertise ensures that ENSA remains a truly pan‑European voice for the scientific user community.
- [Events](https://ensa-neutron.eu/events/): The International Conference on Neutron Scattering was be held in the beautiful city of Copenhagen in Denmark from 6th to 10th July, 2025.
- [Awards](https://ensa-neutron.eu/awards/)
- [Neutron Links](https://ensa-neutron.eu/neutron-links/)
- [Neutron News](https://ensa-neutron.eu/neutron-news/)
- [About ENSA](https://ensa-neutron.eu/about/): The European Neutron Science Association (ENSA) gathers scientists that use neutron sources for their research. As a unique microscopic probe, neutrons contribute to an extremely large field of science and technology, in the service of our society. Download the ENSA brochure to discover the unique capabilities of neutrons, exploited daily throughout research institutions in Europe:
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- [Protected: Demo_survey](https://ensa-neutron.eu/demo_survey/): Hello, ENSA delegate,
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- [Protected: Survey_on_Future_Needs](https://ensa-neutron.eu/survey_on_future_needs/)
- [Neutron News](https://ensa-neutron.eu/neutron-news-2/): Three neutron science research reactors in Europe have ceased operations in 2019. The League of advanced European Neutron Sources, LENS, and the European Neutron Scattering Association, ENSA, warn of a “neutron gap” that could impact scientific research across multiple fields in physics, materials science, chemistry, biology, medical science and engineering.
- [Neutron Links](https://ensa-neutron.eu/neutron-links-2/): https://neutronsources.org/
- [Events](https://ensa-neutron.eu/events-2/): The upcoming European Conference for Neutron Scattering will be held in the beautiful city of Munich in Germany from 20-23 March 2023. The event is organized by Heinz Maier-Leibnitz Zentrum MLZ.
- [Awards](https://ensa-neutron.eu/awards-page/): Call for Nominations 2025
- [About](https://ensa-neutron.eu/about-2/): The European Neutron Science Association (ENSA) (formerly European Neutron Scattering Association) gathers scientists that use neutron sources for their research. As a unique microscopic probe, neutrons contribute to an extremely large field of science and technology, in the service of our society. Download the ENSA brochure to discover the unique capabilities of neutrons, exploited daily throughout research institutions in Europe: