Search results for "accelerator"
showing 10 items of 1507 documents
"Table 6" of "Measurement of the low-energy antideuteron inelastic cross section"
2020
Raw primary antiproton-to-proton ratio from Geant4-based MC simulations as a function of the momentum p_primary with sigma_inel(pbar)x1.25.
"Table 13" of "Production of charged pions, kaons and (anti-)protons in Pb-Pb and inelastic pp collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV"
2021
Integrated yield ratios of protons ($p+pbar$) to pions ($\pi^{+}+\pi^{-}$) measured in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV.
"Table 1" of "Production of muons from heavy-flavour hadron decays in p-Pb collisions at $\mathbf{\sqrt{{\textit s}_{NN}} = 5.02}$ TeV"
2017
pT-differential production cross section of heavy-flavour decay muons at forward rapidity (proton-going side) and backward rapidity (Pb-going side)
"Table 4" of "Production of muons from heavy-flavour hadron decays in p-Pb collisions at $\mathbf{\sqrt{{\textit s}_{NN}} = 5.02}$ TeV"
2017
pT-differential nuclear modification factor of heavy-flavour decay muons at forward rapidity (proton-going side)
"Table 2" of "Production of muons from heavy-flavour hadron decays in p-Pb collisions at $\mathbf{\sqrt{{\textit s}_{NN}} = 5.02}$ TeV"
2017
pT-differential nuclear modification factor of heavy-flavour decay muons at forward rapidity (proton-going side)
"Table 6" of "Production of muons from heavy-flavour hadron decays in p-Pb collisions at $\mathbf{\sqrt{{\textit s}_{NN}} = 5.02}$ TeV"
2017
pT-differential forward-to-backward ratio of heavy-flavour decay muons
Direct measurement of resonance driving terms in the super proton synchrotron (SPS) of cern using beam position monitors
2003
El objetivo principal de esta tesis consiste en desarrollar un metodo para medir los terminos resonantes del Hamiltoniano de un acelerador mediante la transfomada de Fourier de la posicion del haz vuelta tras vuelta. Dos aspectos fundamentales de este metodo de medida son: el efecto de la decoherencia del haz en el espectro de Fourier y la variacion longitudinal de estos terminos resonantes. Ambos se estudian analiticamente y mediante simulaciones numericas. Con el fin de probar la validez de esta tecnica se realizaron experimentos en dos aceleradores de hadrones: el SPS del CERN y el RHIC del BNL. Por ultimo se estudia como utilizar dipolos AC para que esta tecnica no sea destructiva
Design exploration of aes accelerators on FPGAS and GPUs
2017
The embedded systems are increasingly becoming a key technological component of all kinds of complex tech-nical systems and an exhaustive analysis of the state of the art of all current performance with respect to architectures, design methodologies, test and applications could be very in-teresting. The Advanced Encryption Standard (AES), based on the well-known algorithm Rijndael, is designed to be easily implemented in hardware and software platforms. General purpose computing on graphics processing unit (GPGPU) is an alternative to recongurable accelerators based on FPGA devices. This paper presents a direct comparison between FPGA and GPU used as accelerators for the AES cipher. The res…
Design study for a 500 MeV positron beam at the Mainz Microtron MAMI
2022
A design study has been performed for a positron beam with an energy of 500 MeV to be realized at the applied physics area of the Mainz Microtron MAMI. Positrons will be created after pair conversion of bremsstrahlung, produced by the 855 MeV electron beam af MAMI in a tungsten converter target. From the two conceivable geometries (i) pair conversion in the bremsstrahlung converter target itself, and (ii) bremsstrahlung pair conversion in a separated lead foil, the former was considered in detail. Positrons will be energy selected within an outside open electron beam-line bending magnet, and bent back by an additional sector magnet. Magnetic focusing elements in between are designed to prep…
Optical absorption of divalent metal tungstates: Correlation between the band-gap energy and the cation ionic radius
2008
We have carried out optical-absorption and reflectance measurements at room temperature in single crystals of AWO4 tungstates (A = Ba, Ca, Cd, Cu, Pb, Sr, and Zn). From the experimental results their band-gap energy has been determined to be 5.26 eV (BaWO4), 5.08 eV (SrWO4), 4.94 eV (CaWO4), 4.15 eV (CdWO4), 3.9-4.4 eV (ZnWO4), 3.8-4.2 eV (PbWO4), and 2.3 eV (CuWO4). The results are discussed in terms of the electronic structure of the studied tungstates. It has been found that those compounds where only the s electron states of the A2+ cation hybridize with the O 2p and W 5d states (e.g BaWO4) have larger band-gap energies than those where also p, d, and f states of the A2+ cation contribu…