[en] IT Department of Synchrotron SOLEIL is structured along of a team of software developers responsible for the development and maintenance of all software from hardware controls up to supervision applications. With a very heterogonous development environment such as, several software languages, strongly coupled components and an increasing number of releases of the entire software stacks, it has become mandatory to standardize the entire development process through a “Continuous Delivery approach”; making it easy to release and deploy on time at any time. We achieved our objectives by building up a Continuous Delivery solution around two aspects, Deployment Pipeline and DevOps. A deployment pipeline is achievable by extensively automating all stages of the delivery process (the continuous integration of software, the binaries build and the integration tests). Another key point of Continuous Delivery is also a close collaboration between software developers and system administrators, often known as the DevOps movement. This paper details the feedbacks on how we have adopted this Continuous Delivery approach, modifying our daily development team life and give an overview of the future steps. (author)

[en] A distributed software control system aims to enhance the upgrade ability and reliability by sharing responsibility between several components. The disadvantage is that it makes it harder to detect problems on a significant number of modules. With Kaizen in mind we have chosen to continuously invest in automation to obtain a complete overview of software quality despite the growth of legacy code. The development process has already been mastered by staging each life-cycle step thanks to a continuous integration server based on JENKINS and MAVEN. We enhanced this process, focusing on 3 objectives: Automatic Test, Static Code Analysis and Post-Mortem Supervision. Now, the build process automatically includes a test section to detect regressions, incorrect behaviour and integration incompatibility. The in-house TANGOUNIT project satisfies the difficulties of testing distributed components such as Tango Devices. In the next step, the programming code has to pass a complete code quality check-up. The SONAR quality server has been integrated in the process, to collect each static code analysis and display the hot topics on summary web pages. Finally, the integration of Google BREAKPAD in every TANGO Devices gives us essential statistics from crash reports and enables us to replay the crash scenarios at any time. We have already gained greater visibility on current developments. Some concrete results will be presented including reliability enhancement, better management of subcontracted software development, quicker adoption of coding standards by new developers and understanding of impacts when moving to a new technology. (authors)

[en] Short communication. 1 tab

[en] Short communication. 1 tab

[en] We present two rare lumbar lesions with similar MRI features: high signal on T1-weighted and proton density images and low signal on T2-weighted images; a melanotic schwannoma, and a giant-cell tumour-like lesion. Melanin in the first case and haemosiderin and metahaemoglobin in the second were responsible for the MRI characteristics. (orig.)

[en] Synchrotron SOLEIL is continuously optimizing its 29 beamlines in order to propose state of the art synchrotron radiation based experimental techniques to its users. Among the topics addressed by the related transversal projects, the enhancement of the computing tools is identified as a high priority task. In this area, the aim is to optimize the beam time usage providing the users with a fast, simultaneous and multi-technique scanning platform. The concrete implementation of this general concept allows the users not only to acquire more data in the same amount of beam time, but also to address specific phenomena otherwise difficult to tackle (like processes involving rapid transformation of the sample). This paper gives the reader a detailed overview of the so called ‘Flyscan’ platform. It notably details the solution retained to generalize a prototype previously developed as a proof of concept. Some application examples are also reported. (author)

[en] An increasing number of synchrotron beamlines need to use several detection techniques in parallel and in fast acquisition modes. It means measuring signals from all detectors 'on-the-fly' while actuators are moving in order to avoid significant time overheads that are introduced by motor settling times in step-scan mode. The large amount of data produced in such experiment has to be managed. Relying on our Tango based software distributed architecture, a set of C++/java libraries, Tango devices and GUI (graphical user interface) applications has been developed to form a 'distributed fast acquisition system for multi-detector experiments' (FLYSCAN) for the future Soleil beamline Nanoscopium. This paper presents the status of the development and the implementation of FLYSCAN

[en] Over the period 2002-2012, CEA conducted some extensive R&D on the design of GFR fuel elements (together with related material and core/system studies). This paper reviews the challenges raised by this programme, the solutions proposed to address them, and the remaining issues. Studies were performed on the assembly duct, the pin bundle and the fuel pin. The main issues were related to the challenge of using silicon carbide composites (SiC/SiC) for the pin cladding and the assembly duct, as well as mixed uranium-plutonium carbide (UPuC) for the nuclear fuel. Emphasizing the pin design, key achievements are reviewed in this paper regarding such topics as fission product confinement and high burnup performance, for the sake of which original design options were recently patented. (author)