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Over 115 participants, including researchers, managers and IT professionals from the photon and neutron communities and representatives of the European Commission, attended the 2nd online Photon and Neutron EOSC Symposium, jointly organised by PaNOSC and ExPaNDS on 26 October 2021. Find in this booklet all presentations, the recordings will also be made available shortly.

An operational framework document describing the sustainable, coordinating organisational structure spanning national Photon and Neutron Research Infrastructures and EOSC. Common rules and best practices for implementing the national RI’s analysis services, and future data analysis services, within the EOSC.

This document summarises work in ExPaNDS Data Analysis Services work package (WP4) for the preparation and publication of Photon and Neutron reference data sets to be used to adapt, align and validate the project’s Prototype Data Analysis Services.

The ExPaNDS project aims at deploying into EOSC Data Catalogues and data analysis services. This document describes the status, a gap analysis, and a roadmap required to achieve harmonised and federated (meta)data catalogues within EOSC of the participating national Photon and Neutron (PaN) Research Infrastructures (RIs).

This paper identifies the needs specific to synchrotrons and FELs towards the European Open Science Cloud (EOSC) and how these research infrastructures and their user communities can best take advantage of the EOSC. The CALIPSOplus project [http://www.calipsoplus.eu/] brings together all photon sources in Europe. A significant number of them have participated in the Joint Research Activity 2 (JRA2 also referred to as WP24), to develop a prototype of a remote Data Analysis as a Service (DAAS) platform. The prototype was deployed and tested at the participants site and an online workshop was held at the end of 2020 to present the results. The prototype DAAS service was instrumental in identifying the needs for remote analysis and cloud-like access to IT resources for photon research infrastructures. This experience furthermore allowed the authors to reflect on the promise on "The European Open Science Cloud (EOSC) is an environment for hosting and processing research data to support EU science" made by the EOSC and its application to photon sources. The paper starts by defining the needs of the Photon and Neutron (PaN) community towards cloud computing and then presents the achievements from JRA2. It then goes on to analyse the situation for photon sources according to the services recommended by the EOSC: FAIR data, data storage, data processing, data re-use. It continues with a brief overview of the Helix Nebula Science cloud and then proceeds to an overview of EOSC services, their state and suitability for the PaN RIs.

This paper identifies the needs specific to synchrotrons and FELs towards the European Open Science Cloud (EOSC) and how these research infrastructures and their user communities can best take advantage of the EOSC. The CALIPSOplus project [http://www.calipsoplus.eu/] brings together all photon sources in Europe. A significant number of them have participated in the Joint Research Activity 2 (JRA2 also referred to as WP24), to develop a prototype of a remote Data Analysis as a Service (DAAS) platform. The prototype was deployed and tested at the participants site and an online workshop was held at the end of 2020 to present the results. The prototype DAAS service was instrumental in identifying the needs for remote analysis and cloud-like access to IT resources for photon research infrastructures. This experience furthermore allowed the authors to reflect on the promise on "The European Open Science Cloud (EOSC) is an environment for hosting and processing research data to support EU science" made by the EOSC and its application to photon sources. The paper starts by defining the needs of the Photon and Neutron (PaN) community towards cloud computing and then presents the achievements from JRA2. It then goes on to analyse the situation for photon sources according to the services recommended by the EOSC: FAIR data, data storage, data processing, data re-use. It continues with a brief overview of the Helix Nebula Science cloud and then proceeds to an overview of EOSC services, their state and suitability for the PaN RIs.