[en] Neutron induced reactions remain as a subject of great interest for both theory and applications, especially at medium energy range (20 MeV - 40 MeV), where particle emission is mostly described by “pre-equilibrium processes” and nuclear structure effects start to wash out. The current theoretical nuclear models still lack the capability to predict cross sections for any nucleus in an arbitrary energy range with reasonable accuracy for practical applications. These models, implemented within codes like TALYS [1], still rely on experimental data, which are necessary for a correct choice of their free parameters. In this scope, this project aims at obtaining double differential cross-sections measurements of light charged particles (p, d, t, He, and α) for natC, natCr and natFe in neutron-induced reactions. The latter two elements are the primary components of Eurofer steel, which will be extensively explored in fusion technologies, such as in the upcoming DONES facility [2]. Reliable data on radiation damage in structural material are essential for making suitable predictions regarding the longevity and performance of these materials. In the last few years, three experiments have been conducted at the Neutrons For Science (NFS) facility at GANIL with the Medley setup to study production of light ions in those elements. This setup, designed and assembled in Uppsala [3], comprises eight telescopes, each containing two silicon detectors and one CsI, for detection and identification of light-ions using the ΔE-ΔE-E technique. The first objective of this series of experiments is to measure the NFS neutron spectrum, using neutron-proton elastic scattering in a CH target. Medley has shown to provide good particle identification with enough energy resolution to distinguish between the individual isotopes of H and of He, and the required resolution for time of flight measurements in the whole energy range available at the facility. In this contribution, we will present the preliminary values of the NFS neutron spectrum, along with the perspectives regarding the analysis of light-ion emission on the aforementioned nuclei. [1] A. Koning, S. Hilaire, and S. Goriely, Eur. Phys. J. A, 59 6 (2023) 131 [2] Y. Qiu, Fusion Engineering and Design, 201 (2024) 114242 [3] Pomp, S., et al., EPJ Web of Conferences, 8 (2010) 07013

[en] The major upgrade of the energy and intensity of the existing ISOLDE and REX-ISOLDE radioactive ion beam facilities at CERN requires the replacement of most of the existing ISOLDE post-acceleration equipment by a superconducting linac based on quarter-wave resonators housed together with superconducting solenoids in a series of four high-β and two low-β cryo-modules. As well as providing optimum conditions for physics, the cryo-modules need to function under stringent vacuum and cryogenic conditions. We present the detail design and expected cryogenic performance of the high- β cryo-module together with the cryogenic supply and distribution system destined to service the complete superconducting linac

[en] In the frame of the High Luminosity upgrade of the LHC, improved collimation schemes are needed to cope with the superconducting magnet quench limitations due to the increasing beam intensities and particle debris produced in the collision points. Two new TCLD collimators have to be installed on either side of the ALICE experiment to intercept heavy-ion particle debris. Beam optics solutions were found to place these collimators in the continuous cryostat of the machine, in the locations where connection cryostats, bridging a gap of about 13 m between adjacent magnets, are already present. It is therefore planned to replace these connection cryostats with two new shorter ones separated by a bypass cryostat allowing the collimators to be placed close to the beam pipes. The connection cryostats, of a new design when compared to the existing ones, will still have to ensure the continuity of the technical systems of the machine cryostat (i.e. beam lines, cryogenic and electrical circuits, insulation vacuum). This paper describes the functionalities and the design solutions implemented, as well as the plans for their construction. (paper)

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[en] The High Luminosity LHC (HL-LHC) is a project to upgrade the LHC collider after 2020-2025 to increase the integrated luminosity by about one order of magnitude and extend the physics production until 2035. An upgrade of the focusing triplets insertion system for the ATLAS and CMS experiments is foreseen using superconducting magnets operating in a pressurised superfluid helium bath at 1.9 K. This will require the design and construction of four continuous cryostats, each about sixty meters in length and one meter in diameter, for the final beam focusing quadrupoles, corrector magnets and beam separation dipoles. The design is constrained by the dimensions of the existing tunnel and accessibility restrictions imposing the integration of cryogenic piping inside the cryostat, thus resulting in a very compact integration. As the alignment and position stability of the magnets is crucial for the luminosity performance of the machine, the magnet support system must be carefully designed in order to cope with parasitic forces and thermo-mechanical load cycles. In this paper, we present the conceptual design of the cryostat and discuss the approach to address the stringent and often conflicting requirements of alignment, integration and thermal aspects. (paper)

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[en] tecognition of the Competition of the regulatory authority for the test: Determination of the Committed Effective Dose due to the incorporation of 131I. Product of the low perception of risk of the License Holder, the lack of training of those responsible for security and the lack of standardization and quality assurance in the part of the dose allocation process carried out in the Nuclear Medicine Departments, the individual radiological surveillance of the 131I incorporation in Cuba is not done properly according to the requirements of the Center National Nuclear Safety and international recommendations. Fruit of the consensus between Radiation Protection and Hygiene Center and the National Nuclear Safety Center are They developed recommendations for the Individual Radiological Surveillance of Internal Exposure, which they contain the actions aimed at bridging the identified deficiencies. An approach of system with national scope and stable over time that allows the recognition of the Competence of the regulatory authority even if the dose allocation process is shared between the Department of Nuclear Medicine and the Laboratory of Internal Dosimetry.

[en] The neutron Time of Flight (n_TOF) facility at CERN is a source of high flux of neutrons obtained by the spallation process of 20 GeV/c protons onto a solid lead target and the remarkable beam density of the Protons Synchrotron (PS). From Nov 2008 the n_TOF facility resumed operation after a halt of 4 years due to radio-protection issues. It features a new lead spallation target with a more robust design, more efficient cooling, separate moderator circuit and most important without any loss of the unique neutron performances of the previous target. The outstanding characteristics of this facility: high neutron flux 10⁶ n/cm²/s.c. at 185 m, wide spectral function from thermal up to GeV, low repetition rates 1.2 s^-1 and the excellent energy resolution of 2 x 10^-4 open new possibilities for high precision cross section measurements, using radioactive samples of modest mass. Moreover the separate moderator circuit will permit in the future the use of borated or heavy water instead of normal water to reduce the 2.2 MeV γ background for the neutron capture measurements. The facility has been commissioned in Nov. 2008, with performances similar of the previous target and predicted by Monte Carlo simulations. (author)