Radioisotope production at the IFMIF-DONES facility

This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. This work was supported by the Spanish projects FIS2015-69941-C2-1-P (MINECO-FEDER, EU), A-FQM-371-UGR18 (Prog. Operativo FEDER Andalucia 2014-2020), the Spanish Association Against Cancer (AECC) (Grant No. PS16163811PORR), and the sponsors of the University of Granada Chair Neutrons for Medicine: Fundacion ACS, Capitan Antonio and La Kuadrilla.The International Fusion Materials Irradiation Facility - Demo Oriented NEutron Source (IFMIF-DONES) is a single-sited novel Research Infrastructure for testing, validation and qualification of the materials to be used in a fusion reactor. Recently, IFMIF-DONES has been declared of interest by ESFRI (European Strategy Forum on Research Infrastructures) and its European host city would be Granada (Spain). In spite the first and most important application of IFMIF-DONES related to fusion technology, the unprecedented neutron flux available could be exploited without modifying the routine operation of IFMIF-DONES. Thus, it is already planned an experimental hall for a complementary program with neutrons. Also, a complementary program on the use of the deuteron beam could help IFMIF-DONES to be more sustainable. In the present work, we study radioisotope production with deuterons of Lu-177. The results show the viability of IFMIF-DONES for such production in terms of the needs of a territory of small-medium size. Also the study suggests that new nuclear data at higher deuteron energies are mandatory for an accurate study in this field.Euratom 633053Spanish project (MINECO-FEDER, EU) FIS2015-69941-C2-1-PSpanish project (Prog. Operativo FEDER Andalucia 2014-2020) A-FQM-371-UGR18Spanish Association Against Cancer (AECC) PS16163811PORRUniversity of Granada Chair Neutrons for Medicine: Fundacion AC

Smart lanthanide antennas for sensing water

Two new families of lanthanide antennas are described. 8-Methoxy- 4,5-dihydrocyclopenta[de]quinolin-2(1H)-one phosphonates or carboxylates behave as selective antennas exhibiting Eu3+ luminescence in organic solvents, while quinolin-2(1H)-one analogues selectively sensitize the Tb3+ emission. These emissions are quenched by H2O addition. Based on this behaviour, the new lanthanide antennas can be used as highly sensitive water sensors.Spanish Ministerio de Economia y Competividad SAF2012-32209 FU2015-67284-RMinisterio de Ciencia e Innovacion/Agencia Estatal de Investigacion/European Regional Development Fund CTQ2017-85658-R CTQ2015-63997-C2Consejo Superior de Investigaciones Cientificas (CSIC) 201580E07

Preparing Phase 4 of the n_TOF/CERN facility

After CERN's Long Shutdown 2, the n_TOF facility infrastructure was largely upgraded. The biggest change is the installation of a new lead spallation target, the performance of which needs to be carefully examined. During Summer 2021, the facility's two flight paths were characterised in terms of neutron beam energy distribution, profile and resolution. In this work, the characterisation of the facility is described and the first results are given

Synthesis, Photophysical Properties, and Laser Behavior of 3-Amino and 3-Acetamido BODIPY Dyes

The asymmetrically substituted BODIPY dyes 9a and 9b have been synthesized through a key redox step involving the r-nitroso derivative of the starting pyrrol. Both dyes emit fluorescence with quantum yields of ca. 0.7, but only 8b behaves as a good laser dye, with an efficiency of 48% in ethanol solution.This work was supported by Project MAT2004-04643-C03-01 and -02 of the Spanish CICYT. M.L. and M.P.-S. thank Ministerio de Educación y Ciencia for a “Juan de la Cierva” contract and a grant, respectively.Peer reviewe

Synthesis, Photophysical Properties, and Laser Behavior of 3-Amino and 3-Acetamido BODIPY Dyes

The asymmetrically substituted BODIPY dyes 9a and 9b have been synthesized through a key redox step involving the r-nitroso derivative of the starting pyrrol. Both dyes emit fluorescence with quantum yields of ca. 0.7, but only 8b behaves as a good laser dye, with an efficiency of 48% in ethanol solution.This work was supported by Project MAT2004-04643-C03-01 and -02 of the Spanish CICYT. M.L. and M.P.-S. thank Ministerio de Educación y Ciencia for a “Juan de la Cierva” contract and a grant, respectively.Peer reviewe

Electronics Irradiation With Neutrons at the NEAR Station of the n_TOF Spallation Source at CERN

We study the neutron field at the NEAR station of the neutron time-of-flight (n_TOF) facility at CERN, through Monte Carlo simulations, well-characterized static random access memories (SRAMs), and radio-photoluminescence (RPL) dosimeters, with the aim of providing neutrons for electronics irradiation. Particle fluxes and typical quantities relevant for electronics testing were simulated for several test positions at NEAR and compared to those at the CERN high-energy accelerator mixed-field facility (CHARM), highlighting similitudes and differences. The SRAM detectors, based on single-event upset (SEU) and single-event latch-up (SEL) counts, each one with a different energy response, and RPL dosimeters were tested in a reference position, and the results were benchmarked to FLUKA simulations. Finally, the neutron spectra at NEAR are compared to those of the most well-known spallation sources and typical environments of interest, for accelerator and atmospheric applications, showing the potential of the facility for electronics irradiation