Author
Manuel Lozano
Other affiliations: University of Notre Dame, University of Basel, Centre national de la recherche scientifique
Bio: Manuel Lozano is an academic researcher from University of Seville. The author has contributed to research in topics: Neutron & Neutron cross section. The author has an hindex of 26, co-authored 178 publications receiving 3661 citations. Previous affiliations of Manuel Lozano include University of Notre Dame & University of Basel.
Papers published on a yearly basis
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18 Jun 1999
1,107 citations
Spanish National Research Council1, University of Seville2, University of California, Santa Cruz3, International School for Advanced Studies4, Space Telescope Science Institute5, Complutense University of Madrid6, Harvard University7, University of California, Berkeley8, University of Western Ontario9, University of Nottingham10, University of Pittsburgh11, University of Arizona12
TL;DR: In this article, the evolution of the spectrum of the EBL between 0.1 and 1000 µm has been determined directly from galaxy spectral energy distribution (SED) observations over a wide redshift range.
Abstract: Theextragalacticbackgroundlight(EBL)isoffundamentalimportancebothforunderstanding the entire process of galaxy evolution and for"-ray astronomy, but the overall spectrum of the EBL between 0.1 and 1000µm has never been determined directly from galaxy spectral energy distribution (SED) observations over a wide redshift range. The evolving, overall spectrum of the EBL is derived here utilizing a novel method based on observations only. This is achieved from the observed evolution of the rest-frameK-band galaxy luminosity function up to redshift 4, combined with a determination of galaxy-SED-type fractions. These are based on fitting Spitzer Wide-Area Infrared Extragalactic Survey (SWIRE) templates to a multiwavelength sample of about 6000 galaxies in the redshift range from 0.2 to 1 from the All-wavelength Extended Groth Strip International Survey (AEGIS). The changing fractions of quiescent galaxies, star-forming galaxies, starburst galaxies and active galactic nucleus (AGN) galaxies in that redshift range are estimated, and two alternative extrapolations of SED types to higher redshifts are considered. This allows calculation of the evolution of the luminosity densities from the ultraviolet (UV) to the infrared (IR), the evolving star formation ratedensityoftheUniverse,theevolvingcontributiontothebolometricEBLfromthedifferent galaxy populations including AGN galaxies and the buildup of the EBL. Our EBL calculations are compared with those from a semi-analytic model, another observationally based model and observational data. The EBL uncertainties in our modelling based directly on the data are quantified, and their consequences for attenuation of very-high-energy"-rays due to pair production on the EBL are discussed. It is concluded that the EBL is well constrained from the UV to the mid-IR, but independent efforts from IR and"-ray astronomy are needed in order to reduce the uncertainties in the far-IR.
693 citations
DSM1, University of Santiago de Compostela2, National and Kapodistrian University of Athens3, University of Ioannina4, Centre national de la recherche scientifique5, Vienna University of Technology6, Charles University in Prague7, CERN8, Istituto Nazionale di Fisica Nucleare9, Polytechnic University of Catalonia10, University of Seville11, Royal Institute of Technology12, ENEA13, University of Notre Dame14, Spanish National Research Council15, Aristotle University of Thessaloniki16, University of Applied Sciences Wiener Neustadt17, Joint Institute for Nuclear Research18, Los Alamos National Laboratory19, Oak Ridge National Laboratory20, Technical University of Madrid21, University of Vienna22, University of Basel23, Institute for Reference Materials and Measurements24
01 Apr 2004-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this paper, the accuracy of the pulse height weighting technique for the determination of neutron capture cross-sections is investigated and several causes of systematic deviation are identified and their effect is quantified.
Abstract: The accuracy of the pulse height weighting technique for the determination of neutron capture cross-sections is investigated. The technique is applied to measurements performed with C6D6 liquid scintillation detectors of two different types using capture samples of various dimensions. The data for well-known (n, gamma) resonances are analyzed using weighting functions obtained from Monte Carlo simulations of the experimental set-up. Several causes of systematic deviation are identified and their effect is quantified. In all the cases measured the reaction yield agrees with the standard value within 2%.
104 citations
Istituto Nazionale di Fisica Nucleare1, DSM2, University of Santiago de Compostela3, University of Łódź4, University of Ioannina5, Centre national de la recherche scientifique6, Vienna University of Technology7, Charles University in Prague8, Polytechnic University of Puerto Rico9, University of Seville10, International Atomic Energy Agency11, CERN12, University of Coimbra13, University of Notre Dame14, Technische Universität München15, Spanish National Research Council16, Aristotle University of Thessaloniki17, Joint Institute for Nuclear Research18, Los Alamos National Laboratory19, Tokyo Institute of Technology20, Oak Ridge National Laboratory21, University of Bologna22, National Technical University of Athens23, University of Vienna24, Institute for Reference Materials and Measurements25, University of Basel26, ENEA27
21 Sep 2009-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: The Total Absorption Calorimeter (TAC) as discussed by the authors was designed for measuring neutron capture cross-sections of low-mass and/or radioactive samples with the accuracy required for nuclear technology and stellar nucleosynthesis.
Abstract: The n_TOF Collaboration has built and commissioned a high-performance detector for ( n , γ ) measurements called the Total Absorption Calorimeter (TAC). The TAC was especially designed for measuring neutron capture cross-sections of low-mass and/or radioactive samples with the accuracy required for nuclear technology and stellar nucleosynthesis. We present a detailed description of the TAC and discuss its overall performance in terms of energy and time resolution, background discrimination, detection efficiency and neutron sensitivity.
90 citations
Istituto Nazionale di Fisica Nucleare1, DSM2, University of Santiago de Compostela3, University of Łódź4, Vienna University of Technology5, Centre national de la recherche scientifique6, Charles University in Prague7, Bulgarian Academy of Sciences8, Polytechnic University of Catalonia9, University of Seville10, CERN11, University of Notre Dame12, Spanish National Research Council13, University of Applied Sciences Wiener Neustadt14, Joint Institute for Nuclear Research15, Los Alamos National Laboratory16, Oak Ridge National Laboratory17, Technical University of Madrid18, University of Vienna19, Royal Institute of Technology20, Institute for Reference Materials and Measurements21, University of Basel22, ENEA23
11 Feb 2005-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: A scalable and versatile data solution has been designed based on 8-bit flash-ADCs with sampling rates up to 2 GHz and 8 Mbyte memory buffer for high accuracy measurement of neutron capture, fission and (n, xn) cross-sections at CERN.
Abstract: The n_TOF facility at CERN has been designed for the measurement of neutron capture, fission and (n, xn) cross-sections with high accuracy. This requires a flexible and-due to the high instantaneous neutron flux-almost dead time free data acquisition system. A scalable and versatile data solution has been designed based on 8-bit flash-ADCs with sampling rates up to 2 GHz and 8 Mbyte memory buffer. The software is written in C and C++ and is running on PCs equipped with RedHat Linux.
89 citations
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Book•
23 Feb 2020
TL;DR: The ATLAS detector as installed in its experimental cavern at point 1 at CERN is described in this paper, where a brief overview of the expected performance of the detector when the Large Hadron Collider begins operation is also presented.
Abstract: The ATLAS detector as installed in its experimental cavern at point 1 at CERN is described in this paper. A brief overview of the expected performance of the detector when the Large Hadron Collider begins operation is also presented.
3,111 citations
Journal Article•
TL;DR: In this paper, the ATLAS experiment is described as installed in i ts experimental cavern at point 1 at CERN and a brief overview of the expec ted performance of the detector is given.
Abstract: This paper describes the ATLAS experiment as installed in i ts experimental cavern at point 1 at CERN. It also presents a brief overview of the expec ted performance of the detector.
2,798 citations
Los Alamos National Laboratory1, Brookhaven National Laboratory2, Oak Ridge National Laboratory3, Rensselaer Polytechnic Institute4, Argonne National Laboratory5, Lawrence Livermore National Laboratory6, International Atomic Energy Agency7, National Institute of Standards and Technology8, Japan Atomic Energy Agency9, Idaho National Laboratory10, Jožef Stefan Institute11, Nuclear Research and Consultancy Group12, University of Vienna13
TL;DR: The ENDF/B-VII.1 library as mentioned in this paper is the most widely used data set for nuclear data analysis and has been updated several times over the last five years. But the most recent version of the ENDF-B-VI.0 library is based on the JENDL-4.0 standard.
2,171 citations
Los Alamos National Laboratory1, National Nuclear Data Center2, Oak Ridge National Laboratory3, Argonne National Laboratory4, Lawrence Livermore National Laboratory5, National Institute of Standards and Technology6, Rensselaer Polytechnic Institute7, Idaho National Laboratory8, Westinghouse Electric9, Atomic Energy of Canada Limited10, Nuclear Research and Consultancy Group11
TL;DR: The ENDF/B-VII.0 as discussed by the authors file contains data primarily for reactions with incident neutrons, protons, and photons on almost 400 isotopes, based on experimental data and theory predictions.
1,913 citations
TL;DR: The fourth version of the Japanese Evaluated Nuclear Data Library has been produced in cooperation with the Japanese Nuclear Data Committee as mentioned in this paper, and much emphasis is placed on the improvement of the original library.
Abstract: The fourth version of the Japanese Evaluated Nuclear Data Library has been produced in cooperation with the Japanese Nuclear Data Committee. In the new library, much emphasis is placed on the impro...
1,699 citations