Ερευνητικό υλικό ΕΚΠΑ

Time-energy relation of the n_TOF neutron beam: Energy standards revisited

Αγγλικά

The accurate determination of neutron cross-sections as a function of the neutron energy at a time-of-flight facility requires a precise knowledge of the time-energy relation for the neutron beam. For the n_TOF neutron beam at CERN, produced by spallation of high-energy protons on a Pb target, the time-energy relation is connected to the production mechanism and to the subsequent moderation process. A calibration of the neutron energy scale is proposed based on detailed Monte Carlo simulations of the facility. This time-energy relation has been experimentally validated by means of dedicated measurements of standard energy resonances, from 1eV to approximately 1MeV. On the basis of the present measurements, it is proposed to correct the energy of the 1.3eV resonance of 193Ir, which is commonly considered as an energy standard. © 2004 Elsevier B.V. All rights reserved.

2004

Lorusso, G.
Colonna, N.
Marrone, S.
Tagliente, G.
Heil, M.
Cano-Ott, D.
Mosconi, M.
Moreau, C.
Mengoni, A.
Abbondanno, U.
Aerts, G.
Alvarez-Pol, H.
Alvarez-Velarde, F.
Andriamonje, S.
Andrzejewski, J.
Angelopoulos, A.
Assimakopoulos, P.
Badurek, G.
Baumann, P.
Bečvár, F.
Benlliure, J.
Berthomieux, E.
Bisceglie, E.
Calviño, P.
Capote, R.
Cennini, P.
Chepel, V.
Chiaveri, E.
Coceva, C.
Cortes, G.
Cortina, D.
Couture, A.
Cox, J.
Dababneh, S.
Dahlfors, M.
David, S.
Dolfini, R.
Domingo-Pardo, C.
Duran, I.
Eleftheriadis, C.
Embid-Segura, M.
Ferrant, L.
Ferrari, A.
Ferreira-Marques, R.
Frais-Koelbl, H.
Furman, W.I.
Goncalves, I.F.
Gonzalez-Romero, E.
Goverdovski, A.
Gramegna, F.
Griesmayer, E.
Gunsing, F.
Haas, B.
Haight, R.
Herrera-Martinez, A.
Ioannides, K.G.
Isaev, S.
Jericha, E.
Käppeler, F.
Kadi, Y.
Karamanis, D.
Ketlerov, V.
Kitis, G.
Koehler, P.E.
Konovalov, V.
Kossionides, E.
Krticka, M.
Leeb, H.
Lindote, A.
Lopes, M.I.
Lozano, M.
Lukic, S.
Marganiec, J.
Mastinu, P.F.
Milazzo, P.M.
Molina-Coballes, A.
Neves, F.
Oberhummer, H.
O'Brien, S.
Pancin, J.
Paradela, C.
Pavlik, A.
Pavlopoulos, P.
Perrot, L.
Peskov, V.
Plag, R.
Plompen, A.
Plukis, A.
Poch, A.
Policarpo, A.
Pretel, C.
Quesada, J.M.
Rapp, W.
Rauscher, T.
Reifarth, R.
Rosetti, M.
Rubbia, C.
Rudolf, G.
Rullhusen, P.
Salgado, J.
Savvidis, E.
Soares, J.C.
Stephan, C.
Tain, J.L.
Tassan-Got, L.
Tavora, L.M.N.
Terlizzi, R.
Tsangas, N.
Vannini, G.
Vaz, P.
Ventura, A.
Villamarin, D.
Vincente, M.C.
Vlachoudis, V.
Vlastou, R.
Voss, F.
Wendler, H.
Wiescher, M.
Wisshak, K.

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

532

3

622-630

Moderation distance; Neutron capture cross sections; Neutron energy standards; Spallation neutron source, Calibration; Computer simulation; Monte Carlo methods; Protons; Resonance, Neutron beams

https://doi.org/10.1016/j.nima.2004.04.247

10.1016/j.nima.2004.04.247

https://pergamos.lib.uoa.gr/uoa/dl/object/3074631