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Fiber laser system of 1550 nm femtosecond pulses with configurable properties for the two-photon excitation of transient currents in semiconductor detectors
/ Almagro-Ruiz, Azahara (Guglielmo Marconi U.) ; Pape, Sebastian (CERN ; Dortmund U.) ; Muñoz-Marco, Héctor (Guglielmo Marconi U.) ; Wiehe, Moritz (CERN ; Freiburg U.) ; Currás, Esteban (CERN) ; Fernández-García, Marcos (CERN ; Cantabria Inst. of Phys.) ; Moll, Michael (CERN) ; Montero, Raúl (Basque U., Bilbao) ; Palomo, Francisco Rogelio (Seville U.) ; Quintana, Cristian (Cantabria Inst. of Phys.) et al.
A fiber laser system emitting ultrashort femtosecond pulses at 1550 nm with configurable properties has been developed as an excitation source for the two-photon absorption transient current technique (TPA-TCT). The modules of the system are designed to provide the optical specifications required at the output for localized characterization of semiconductor radiation detectors: variation of pulse energy between 10 nJ and 10p
J, variation of the pulse repetition rate from 8.2 MHz to single shot, and variation of pulse duration between 300 and 600 fs. [...]
2022 - 12 p.
- Published in : Appl. Opt. 61 (2022) 9386-9397
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Superconducting Magnets for Super-FRS: Production and Testing Status
/ Müller, Hans (Darmstadt, GSI) ; Allain, Hervé (CEA, DEN, Saclay) ; Borceto, Alice (ASG Supercond., Genova) ; Chiuchiolo, Antonella (Darmstadt, GSI) ; Cho, Eun Jung (Darmstadt, GSI) ; Drago, Giovanni (ASG Supercond., Genova) ; Garcia Escudero, Marcos (Elytt, Madrid) ; Golluccio, Giancarlo (Darmstadt, GSI) ; Greiner, Florian (Darmstadt, GSI) ; Kosek, Pawel (Darmstadt, GSI) et al.
The Super FRS is a two-stage in flight separator to be built next to the site of GSI, Darmstadt, Germany as part of FAIR (Facility for Anti-proton and Ion Research). Its three branches allow to carry out a wide variety of experiments. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 2405-2408
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.2405-2408
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Test beam characterization of irradiated 3D pixel sensors
/ Garcia Alonso, Andrea (Cantabria Inst. of Phys.) ; Curras Rivera, Esteban (Cantabria Inst. of Phys.) ; Duarte Campderros, Jordi (Cantabria Inst. of Phys.) ; Fernandez Garcia, Marcos (Cantabria Inst. of Phys.) ; Gomez, Gervasio (Cantabria Inst. of Phys.) ; Gonzalez Sanchez, Javier (Cantabria Inst. of Phys.) ; Silva Jimenez, Esther (Strasbourg, IPHC) ; Vila Alvarez, Ivan (Cantabria Inst. of Phys.) ; Jaramillo Echeverria, Richard William (Cantabria Inst. of Phys.) ; Meschini, Marco (INFN, Florence) et al.
Due to the large expected instantaneous luminosity, the future HL-LHC upgrade sets strong requirements on the radiation hardness of the CMS detector Inner Tracker. Sensors based on 3D pixel technology, with its superior radiation tolerance, comply with these extreme conditions. [...]
CMS-CR-2019-161.-
Geneva : CERN, 2019 - 12 p.
Fulltext: PDF;
In : 21st International Workshop on Radiation Imaging Detectors, Kolympari, Chania, Greece, 7 - 12 Jul 2019
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BICEP/Keck Constraints on Attractor Models of Inflation and Reheating
/ Ellis, John (King's Coll. London ; CERN ; NICPB, Tallinn) ; Garcia, Marcos A.G. (Mexico U.) ; Nanopoulos, Dimitri V. (Texas A-M ; HARC, Woodlands ; Athens Academy) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.) ; Verner, Sarunas (Minnesota U., Theor. Phys. Inst.)
Recent BICEP/Keck data on the cosmic microwave background, in combination with previous WMAP and Planck data, impose strong new constraints on the tilt in the scalar perturbation spectrum, $n_s$, as well as the tensor-to-scalar ratio, $r$. These constrain the number of e-folds of inflation, $N_*$, the magnitude of the inflaton coupling to matter, $y$, and the reheating temperature, $T_{\rm reh}$, which we evaluate in attractor models of inflation as formulated in no-scale supergravity. [...]
arXiv:2112.04466; KCL-PH-TH/2021-90; CERN-TH-2021-199; ACT-06-21; MI-HET-769,
UMN-TH-4107/21; FTPI-MINN-21/26.-
2022-02-03 - 9 p.
- Published in : Phys. Rev. D 105 (2022) 043504
Fulltext: 2112.04466 - PDF; PhysRevD.105.043504 - PDF;
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Freeze-in from Preheating
/ Garcia, Marcos A.G. (Madrid, IFT ; Madrid, Autonoma U. ; INFN, Padua ; U. Padua (main)) ; Kaneta, Kunio (Tokyo Woman's Christian U.) ; Mambrini, Yann (IJCLab, Orsay ; CERN) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.) ; Verner, Sarunas (Minnesota U., Theor. Phys. Inst.)
We consider the production of dark matter during the process of reheating after inflation. The relic density of dark matter from freeze-in depends on both the energy density and energy distribution of the inflaton scattering or decay products composing the radiation bath. [...]
arXiv:2109.13280; UMN-TH-4101/21; FTPI-MINN-21/19; CERN-TH-2021-121.-
2022-03-08 - 39 p.
- Published in : JCAP 2203 (2022) 016
Fulltext: PDF;
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Development of a Tabletop Setup for the Transient Current Technique Using Two-Photon Absorption in Silicon Particle Detectors
/ Wiehe, Moritz (CERN ; Freiburg U.) ; Fernandez Garcia, Marcos (CERN) ; Moll, Michael (CERN) ; Montero, Raul (SGIker Laser Facility (UPV/EHU), Leioa) ; Palomo, F R (Escuela Técnica Superior de Ingenieros, Seville) ; Vila, Ivan (Cantabria Inst. of Phys.) ; Munoz-Marco, Hector (FYLA LASER, Valencia) ; Otgon, Viorel (FYLA LASER, Valencia) ; Perez-Millan, Pere (FYLA LASER, Valencia)
The transient current technique (TCT) is widely used in the field of silicon particle detector development. So far, only laser wavelengths with a photon energy larger than or similar to the silicon bandgap (single photon absorption) were used. [...]
2021 - 9 p.
- Published in : IEEE Trans. Nucl. Sci. 68 (2021) 220-228
Fulltext: PDF;
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Multiplication onset and electric field properties of proton irradiated LGADs
/ Ugobono, Sofia Otero (U. Santiago de Compostela (main) ; CERN) ; Centis Vignali, Matteo (CERN) ; Fernandez Garcia, Marcos (CERN ; Cantabria U., Santander) ; Gallrapp, Christian ; Hidalgo Villena, Salvador ; Mateu, Isidre ; Moll, Michael ; Pellegrini, Giulio ; Barroso, Ana Ventura (CERN ; U. Barcelona (main)) ; Vila, Ivan (Cantabria U., Santander)
This work focuses on the study of a set of Low Gain Avalanche Detectors (LGADs) produced by CNM, Barcelona (run 7859). Several samples were irradiated with 24-GeV/c protons up to different fluences, ranging between 10$^{12}$ and 10$^{15}$ n$_\textrm{eq}$/cm$^2$. [...]
SISSA, 2018 - 14 p.
- Published in : PoS Vertex2017 (2018) 041
Fulltext: PDF;
In : The 26th International Workshop on Vertex Detectors, Las Caldas, Spain, 10 - 15 Sep 2017, pp.041
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