Search Results - "Mangiarotti A."

A review of electron–nucleus bremsstrahlung cross sections between 1 and 10 MeV by Mangiarotti, A., Martins, M.N.

“…More than 80 years have passed since the first calculations of electron-nucleus bremsstrahlung cross sections were published by Sommerfeld, for…”
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Spectral distribution and Coulomb correction for nuclear bremsstrahlung induced by heavy targets by Mangiarotti, A., Lauth, W., Jakubassa-Amundsen, D.H., Klag, P., Malafronte, A.A., Martins, M.N., Nielsen, C.F., Uggerhøj, U.I.

“…Bremsstrahlung spectra below 250 MeV have been measured colliding 500 MeV–electrons with Cu, Ag, and Au targets. The experimental intensity ratios relative to…”
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On higher–order corrections to nuclear bremsstrahlung cross sections by Mangiarotti, A., Jakubassa-Amundsen, D.H., Martins, M.N.

“…A quantitative understanding of bremsstrahlung by electrons in the screened field of atomic nuclei has been developed by several researchers over the last 80…”
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Measurement of the first Townsend ionization coefficient in a methane-based tissue-equivalent gas by Petri, A.R., Gonçalves, J.A.C., Mangiarotti, A., Botelho, S., Bueno, C.C.

“…Tissue-equivalent gases (TEGs), often made of a hydrocarbon, nitrogen, and carbon dioxide, have been employed in microdosimetry for decades. However, data on…”
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A low-cost small-size commercial PIN photodiode: II. Comparison of measurements with monoenergetic electrons to analytical expressions and Monte Carlo simulations by Mangiarotti, A., Petri, A.R., Malafronte, A.A., Gonçalves, J.A.C., Barros, S.F., Bueno, C.C., Fernández-Varea, J.M., Maidana, N.L., Martins, M.N., Vanin, V.R.

“…Commercial PIN photodiodes, repurposed as particle detectors, have received a lot of attention along the past decades because they can offer a low-cost…”
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A low-cost small-size commercial PIN photodiode: I. Electrical characterisation and low-energy photon spectrometry by Malafronte, A.A., Petri, A.R., Gonçalves, J.A.C., Barros, S.F., Bueno, C.C., Maidana, N.L., Mangiarotti, A., Martins, M.N., Quivy, A.A., Vanin, V.R.

“…Silicon PIN (p-type-intrinsic-n-type) photodiodes are well suited as particle detectors. Here the interest is on a low-cost solution by repurposing a…”
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Performance Characterization of Dosimeters Based on Radiation-Hard Silicon Diodes in Gamma Radiation Processing by Bueno, C. C., Camargo, F., Gonçalves, J. A. C., Pascoalino, K., Mangiarotti, A., Tuominen, E., Härkönen, J.

“…The dosimetric response of silicon diodes produced with distinct engineering technologies, Magnetic Czochralski (MCz), and standard Float Zone (Fz), has been…”
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Measurements of the spectral location of the structured target resonance for ultrarelativistic electrons by Andersen, K.K., Andersen, S.L., Knudsen, H., Mikkelsen, R.E., Thomsen, H.D., Uggerhøj, U.I., Wistisen, T.N., Esberg, J., Sona, P., Mangiarotti, A., Ketel, T.J.

“…When an ultrarelativistic electron traverses two closely spaced foils, a radiation spectrum ‘resonance’ appears, arising from the photon formation length…”
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Comparison of analytical and Monte Carlo calculations of multi-photon effects in bremsstrahlung emission by high-energy electrons by Mangiarotti, A., Sona, P., Ballestrero, S., Uggerhøj, U.I., Andersen, K.K.

“…Approximate analytical calculations of multi-photon effects in the spectrum of total radiated energy by high-energy electrons crossing thin targets are…”
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Experimental investigations on the first Townsend coefficient in pure isobutane by Lima, I.B., Mangiarotti, A., Vivaldini, T.C., Gonçalves, J.A.C., Botelho, S., Fonte, P., Takahashi, J., Tarelho, L.V., Bueno, C.C.

“…In this work we present results of the first Townsend coefficient (α) in pure isobutane by measuring the current growth as a function of the electric field…”
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A general semi-analytic method to simulate discrete bremsstrahlung at very low radiated photon energies by the Monte Carlo method by Mangiarotti, A., Sona, P., Ballestrero, S., Uggerhøj, U.I.

“…A computer code for Monte-Carlo simulations in the framework of the GEANT 3 toolkit has been implemented for the description of the discrete bremsstrahlung…”
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Secondary effects on electron multiplication in pure isobutane by Mangiarotti, A., Lima, I.B., Vivaldini, T.C., Gonçalves, J.A.C., Petri, A.R., Botelho, S., Fonte, P., Bueno, C.C.

“…The presence of secondary processes in electron multiplication under high uniform electric fields at atmospheric pressure in pure isobutane was investigated…”
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The effect of temperature on the rate capability of glass timing RPCs by González-Díaz, D., Belver, D., Blanco, A., Ferreira Marques, R., Fonte, P., Garzón, J.A., Lopes, L., Mangiarotti, A., Marín, J.

“…In this study, we demonstrate a strong influence of the working temperature on the counting rate capability of large-area timing resistive plate chambers…”
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Exactly solvable model for the time response function of RPCs by Mangiarotti, A., Fonte, P., Gobbi, A.

“…The fluctuation theory for the growth of several avalanches is briefly summarized and extended to include the case of electronegative gas mixtures. Based on…”
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On the macroscopic formation length for GeV photons by Thomsen, H.D., Esberg, J., Kirsebom, K., Knudsen, H., Uggerhøj, E., Uggerhøj, U.I., Sona, P., Mangiarotti, A., Ketel, T.J., Dizdar, A., Dalton, M.M., Ballestrero, S., Connell, S.H.

“…Experimental results for the radiative energy loss of 206 and 234 GeV electrons in 5–10 μm thin Ta targets are presented. An increase in radiation emission…”
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Direct measurement of the Chudakov effect by Virkus, T, Thomsen, H D, Uggerhøj, E, Uggerhøj, U I, Ballestrero, S, Sona, P, Mangiarotti, A, Ketel, T J, Dizdar, A, Kartal, S, Pagliarone, C

“…Experimental results for the restricted energy loss of pairs created from 1-178 GeV photons in a thin Au target and subsequently passing a CCD detector are…”
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Restricted energy loss of ultrarelativistic particles in thin targets – A search for deviations from constancy by Andersen, K.K., Esberg, J., Hansen, K.R., Knudsen, H., Lund, M., Thomsen, H.D., Uggerhøj, U.I., Møller, S.P., Sona, P., Mangiarotti, A., Ketel, T.J., Dizdar, A., Ballestrero, S.

“…Experimental results for the restricted energy loss of ultrarelativistic electrons, with Lorentz factors up to 3 × 10 5 , in a 535 μ m thin silicon detector…”
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The time response function of spark counters and RPCs by Gobbi, A., Mangiarotti, A.

“…The fluctuation theory for the avalanche growth with and without space charge effects is briefly summarized and compared to a broad field of applications…”
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On the physical origin of tails in the time response of spark counters by Mangiarotti, A., Gobbi, A.

“…The time response function of a spark counter is calculated considering that the time delay and its fluctuations originate from the avalanche growth, under…”
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Fiasco: a multidetector optimized for semiperipheral heavy ion collisions at Fermi energies by Bini, M., Casini, G., Olmi, A., Poggi, G., Stefanini, A.A., Bardelli, L., Bartoli, A., Bidini, L., Coppi, C., Del Carmine, P., Mangiarotti, A., Maurenzig, P.R., Pasquali, G., Piantelli, S., Poggi, S., Taccetti, N., Vanzi, E.

“…The Fiasco multidetector is a low-threshold apparatus, optimized for the investigation of peripheral to semi-central collisions in heavy ion reactions at Fermi…”
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