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1. The 139La(n,gamma) cross section: key for the onset of the s process

Author

R. TERLIZZI, U. ABBONDANNO, G. AERTS, H. ALVAREZ, F. ALVAREZ VELARDE, S. ANDRIAMONJE, J. ANDRZEJEWSKI, P. ASSIMAKOPOULOS, L. AUDOUIN, G. BADUREK, P. BUMAN, F. BECVAR, E. BERTOUMIEUX, M. CALVIANI, F. CALVINO, D. CANO OTT, R. CAPOTE, A. CARRILLO DE ALBORNOZ, P. CENNINI, VCHEPEL, E. CHIAVERI, N. COLONNA, G. CORTES, A. COUTURE, J. COX, M. DAHLFORS, S. DAVID, I. DILLMAN, R. DOLFINI, C. DOMINGO PARDO, W. DRIDI, I. DURAN, C. ELEFTHERIADIS, M. EMBID SEGURA, L. FERRANT, A. FERRARI, R. FERREIRA MARQUES, L. FITZPATRICK, H. FRAIS KOELBL, K. FUJII, W. FURMAN, R. GALLINO, I. GONCALVES, E. GONZALES ROMERO, A. GOVERDOVSKI, F. GRAMEGNA, E. GRIESMAYER, C. GUERRERO, F. GUNSING, B. HAAS, R. HAIGHT, M. HEIL, A. HERRERA MARTINEZ, M. IGASHIRA, S. ISAEV, E. JERICHA, Y. KADI, F. KAPPELER, D. KARAMANIS, D. KARADIMOS, M. KERVENO, V. KETLEROV, P. KOEHLER, V. KOLNOVALOV, E. KOSSIONIDES, M. KRTICKA, C. LAMBOUDIS, H. LEEB, A. LINDOTE, I. LOPES, M. LOZANO, S. LUKIC, J. MARGANIEC, L. MARQUES, S. MARRONE, P. MASTINU, A. MENGONI, P. M. MILAZZO, C. MOREAU, M. MOSCONI, F. NEVES, H. OBERHUMMER, S. O'BRIEN, J. PANCIN, C. PAPACHRISTODOULOU, C. PAPADOPOULOS, C. PARADELA, N. PATRONIS, A. PAVLIK, P. PAVLOPOULOS, L. PERROT, M. PIGNATARI, R. PLAG, A. PLOMPEN, A. PLUKIS, A. POCH, C. PRETEL, J. QUESADA, T. RAUSCHER, R. REIFARTH, M. ROSETTI, C. RUBBIA, G. RUDOLF, P. RULLHUSEN, J. SALGADO, L. SARCHIAPONE, I. SAVVIDIS, C. STEPHAN, G. TAGLIENTE, J. L. TAIN, L. TASSAN GOT, L. TAVORA, P. VAZ, A. VENTURA, D. VILLARMARIN, M. C. VINCENTE, V. VLACHOUDIS, R. VLASTOU, F. VOSS, S. WALTER, H. WENDLER, M. WIESCHER, K. WISSHAK, MASSIMI, CRISTIAN, VANNINI, GIANNI, R.TERLIZZI, U.ABBONDANNO, G.AERTS, H.ALVAREZ, F.ALVAREZ-VELARDE, S.ANDRIAMONJE, J.ANDRZEJEWSKI, P.ASSIMAKOPOULOS, L.AUDOUIN, G.BADUREK, P.BUMAN, F.BECVAR, E.BERTOUMIEUX, M.CALVIANI, F.CALVINO, D.CANO-OTT, R.CAPOTE, A.CARRILLO DE ALBORNOZ, P. CENNINI, VCHEPEL, E.CHIAVERI, N.COLONNA, G.CORTES, A.COUTURE, J.COX, M.DAHLFORS, S.DAVID, I.DILLMAN, R.DOLFINI, C.DOMINGO-PARDO, W.DRIDI, I.DURAN, C.ELEFTHERIADIS, M.EMBID-SEGURA, L. FERRANT, A.FERRARI, R.FERREIRA-MARQUES, L.FITZPATRICK, H. FRAIS-KOELBL, K.FUJII, W.FURMAN, R.GALLINO, I.GONCALVES, E.GONZALES-ROMERO, A.GOVERDOVSKI, F.GRAMEGNA, E.GRIESMAYER, C.GUERRERO, F.GUNSING, B.HAAS, R.HAIGHT, M.HEIL, A.HERRERA-MARTINEZ, M.IGASHIRA, S.ISAEV, E. JERICHA, Y.KADI, F.KAPPELER, D.KARAMANIS, D.KARADIMOS, M.KERVENO, V.KETLEROV, P.KOEHLER, V.KOLNOVALOV, E.KOSSIONIDES, M.KRTICKA, C.LAMBOUDIS, H.LEEB, A.LINDOTE, I.LOPES, M.LOZANO, S.LUKIC, J.MARGANIEC, L.MARQUES, S.MARRONE, C.MASSIMI, P.MASTINU, A.MENGONI, P.M.MILAZZO, C.MOREAU, M.MOSCONI, F.NEVES, H.OBERHUMMER, S.O'BRIEN, J.PANCIN, C.PAPACHRISTODOULOU, C. PAPADOPOULOS, C.PARADELA, N.PATRONIS, A.PAVLIK, P.PAVLOPOULOS, L.PERROT, M.PIGNATARI, R.PLAG, A.PLOMPEN, A.PLUKIS, A.POCH, C.PRETEL, J.QUESADA, T.RAUSCHER, R.REIFARTH, M.ROSETTI, C.RUBBIA, G.RUDOLF, P.RULLHUSEN, J.SALGADO, L.SARCHIAPONE, I.SAVVIDIS, C.STEPHAN, G.TAGLIENTE, J.L.TAIN, L.TASSAN-GOT, L.TAVORA, G.VANNINI, P.VAZ, A.VENTURA, D.VILLARMARIN, M.C.VINCENTE, V.VLACHOUDIS, R.VLASTOU, F.VOSS, S.WALTER, H.WENDLER, M.WIESCHER, and K.WISSHAK

Subjects
Nuclear Theory, Nuclear Physics - Experiment, Nuclear Experiment
Abstract

The nuclear resonance parameters and the capture cross section of the neutron magic isotope 139La has been measured n_TOF. The description of the experimental apparata is followed by the data analysis procedures. We extracted the resonance parameters, the main nuclear quantities such as the resonance integral, the average gamma widths for s- and p-waves, the nuclear level densities and the neutron strength functions. These results represent a signifcant improvement over previous data. The deduced Maxwellian-averaged capture cross sections are important for the interpretation of the most recent spectroscopic observations in low metallicity stars. The nuclear resonance parameters and the capture cross section of the neutron magic isotope 139La has been measured n_TOF. The description of the experimental apparata is followed by the data analysis procedures. We extracted the resonance parameters, the main nuclear quantities such as the resonance integral, the average gamma widths for s- and p-waves, the nuclear level densities and the neutron strength functions. These results represent a signifcant improvement over previous data. The deduced Maxwellian-averaged capture cross sections are important for the interpretation of the most recent spectroscopic observations in low metallicity stars.

Published
2006

2. NEUTRON CAPTURE CROSS SECTION OF 232Th AT THE n_TOF FACILITY AT CERN IN THE UNRESOLVED RESONANCE REGION UP TO 1 MeV

Author

G. Aerts, U. Abbondanno, H. Alvarez, F. Alvarez Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becvar, E. Berthomieux, F. Calvino, D. Cano Ott, R. Capote, A. Carrillo de Albornoz, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, A. Couture, J. Cox, M. Dahlfors, S. David, I. Dilmann, R. Dolfini, C. Domingo Pardo, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid Segura, L. Ferrant, A. Ferrari, R. Ferreira Marques, L. Fritzpatrick, H. Frais Koelbl, K. Fujii, W. Furman, I. Goncalves, E. Gonzalez Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, C. Guerrero, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, M. Igashira, S. Isaev, E. Jericha, F. Kappeler, Y. Kadi, D. Karadimos, D. Karamanis, M. Kerveno, V. Ketlerov, P. E. Koehler, V. Konovalov, E. Kossionides, M. Krticka, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, L. Marques, S. Marrone, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. Papadopoulos, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin, M. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, H. Wendler, M. Wiescher, K. Wisshak, VANNINI, GIANNI, G.Aert, U.Abbondanno, H.Alvarez, F.Alvarez-Velarde, S.Andriamonje, J.Andrzejewski, P.Assimakopoulo, L.Audouin, G.Badurek, P.Baumann, F.Becvar, E. Berthomieux, F. Calvino, D.Cano-Ott, R.Capote, A.Carrillo de Albornoz, P.Cennini, V.Chepel, E.Chiaveri, N.Colonna, G.Corte, A.Couture, J.Cox, M.Dahlfor, S.David, I.Dilmann, R.Dolfini, C.Domingo-Pardo, W.Dridi, I.Duran, C.Eleftheriadi, M.Embid-Segura, L.Ferrant, A.Ferrari, R.Ferreira-Marque, L.Fritzpatrick, H.Frais-Koelbl, K.Fujii, W.Furman, I.Goncalve, E.Gonzalez-Romero, A.Goverdovski, F.Gramegna, E.Griesmayer, C.Guerrero, F.Gunsing, B.Haa, R.Haight, M.Heil, A.Herrera-Martinez, M.Igashira, S.Isaev, E.Jericha, F.Kappeler, Y.Kadi, D.Karadimo, D.Karamani, M.Kerveno, V.Ketlerov, P.E.Koehler, V.Konovalov, E.Kossionide, M.Krticka, C.Lamboudi, H.Leeb, A.Lindote, I.Lope, M.Lozano, S.Lukic, J.Marganiec, L.Marque, S.Marrone, P.Mastinu, A.Mengoni, P.M.Milazzo, C.Moreau, M.Mosconi, F.Neve, H.Oberhummer, S.O'Brien, M.Oshima, J.Pancin, C.Papachristodoulou, C.Papadopoulo, C.Paradela, N.Patroni, A.Pavlik, P.Pavlopoulo, L.Perrot, M.T.Pigni, R.Plag, A.Plompen, A.Pluki, A. Poch, C.Pretel, J.Quesada, T.Rauscher, R.Reifarth, M.Rosetti, C.Rubbia, G.Rudolf, P.Rullhusen, J.Salgado, L.Sarchiapone, I.Savvidi, C.Stephan, G.Tagliente, J.L.Tain, L.Tassan-Got, L.Tavora, R.Terlizzi, G.Vannini, P.Vaz, A.Ventura, D.Villamarin, M.Vincente, V.Vlachoudi, R.Vlastou, F.Vo, S.Walter, H.Wendler, and M.Wiescher and K. Wisshak

Published
2006

3. New measurement of neutron capture resonances in 209Bi

Author

DOMINGO-PARDO, C., ABBONDANNO, U., AERTS, G., ALVAREZ-POL, H., ALVAREZ-VELARDE, F., ANDRIAMONJE, S., ANDRZEJEWSKI, J., ASSIMAKOPOULOS, P., AUDOUIN, L., BADUREK, G., BAUMANN, P., BECVAR, F., BERTHOUMIEUX, E., CALVINO, F., CANO-OTT, D., CAPOTE, R., DE ALBORNOZ, A.C., CENNINI, P., CHEPEL, V., CHIAVERI, E., COLONNA, N., CORTES, G., COUTURE, A., COX, J., DAHLFORS, M., DAVID, S., DILLMAN, I., DOLFINI, R., DRIDI, W., DURAN, I., ELEFTHERIADIS, C., EMBID-SEGURA, M., FERRANT, L., FERRARI, Anthony, FERREIRA-MARQUES, R., FITZPATRICK, L., FRAIS-KOELBL, H., FUJII, K., FURMAN, W., GALLINO, R., GONCALVES, I., GONZALEZ-ROMERO, E., GOVERDOVSKI, A., GRAMEGNA, F., GRIESMAYER, E., GUERRERO, C., GUNSING, F., HAAS, B., HAIGHT, R., HEIL, M., HERRERA-MARTINEZ, A., IGASHIRA, M., ISAEV, S., JERICHA, E., KADI, Y., KAPPELER, F., KARAMANIS, D., KARADIMOS, D., KERVENO, M., KETLEROV, V., KOEHLER, P., KONOVALOV, V., KOSSIONIDES, E., KRTICKA, M., LAMBOUDIS, C., LEEB, H., LINDOTE, A., LOPES, I., LOZANO, M., LUKIC, S., MARGANIEC, J., MARQUES, L., MARRONE, S., MASTINU, P., MENGONI, A., MILAZZO, P.M., MOREAU, C., MOSCONI, M., NEVES, F., OBERHUMMER, H., OSHIMA, M., O'BRIEN, S., PANCIN, J., PAPACHRISTODOULOU, C., PAPADOPOULOS, C., PARADELA, C., PATRONIS, N., PAVLIK, A., PAVLOPOULOS, P., PERROT, L., PLAG, R., PLOMPEN, A., PLUKIS, A., POCH, A., PRETEL, C., QUESADA, J., RAUSCHER, T., REIFARTH, R., ROSETTI, M., RUBBIA, C., RUDOLF, G., RULLHUSEN, P., SALGADO, J., SARCHIAPONE, L., SAVVIDIS, I., STEPHAN, C., TAGLIENTE, G., TAIN, J.L., TASSAN-GOT, L., TAVORA, L., TERLIZZI, R., VANNINI, G., VAZ, P., VENTURA, A., VILLAMARIN, D., VINCENTE, M.C., VLACHOUDIS, V., VLASTOU, R., VOSS, F., WALTER, S., WENDLER, H., WIESCHER, M., WISSHAK, K., Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), European Organization for Nuclear Research (CERN), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Pôle Universitaire Léonard de Vinci (PôLE UNIVERSITAIRE LéONARD DE VINCI), Pôle Universitaire Léonard de Vinci (PULV), nTOF, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), C.Domingo-Pardo, U.Abbondanno, G.Aert, H.Alvarez-Pol, F.Alvarez-Velarde, S.Andriamonje, J.Andrzejewski, P.Assimakopoulo, L.Audouin, G.Badurek, P.Baumann, F.Becvar, E.Berthomieux, F.Calvino, D.Cano-Ott, R.Capote, A.Carrillo de Albornoz, P.Cennini, V.Chepel, E.Chiaveri, N.Colonna, G.Corte, A.Couture, J.Cox, M.Dahlfor, S.David, I.Dilmann, R.Dolfini, W.Dridi, I.Duran, C.Eleftheriadi, M.Embid-Segura, L.Ferrant, A.Ferrari, R.Ferreira-Marque, L.Fritzpatrick, H.Frais-Koelbl, K.Fujii, W.Furman, R.Gallino, I.Goncalve, E.Gonzalez-Romero, A.Goverdovski, F.Gramegna, E.Griesmayer, C.Guerrero, F.Gunsing, B.Haa, R.Haight, M.Heil, A.Herrera-Martinez, M.Igashira, S.Isaev, E.Jericha, Y.Kadi, F.Käppeler, D.Karamani, D.Karadimo, M.Kerveno, V.Ketlerov, P.E.Koehler, V.Konovalov, E.Kossionide, M.Krticka, C.Lamboudi, H.Leeb, A.Lindote, I.Lope, M.Lozano, S.Lukic, J.Marganiec, L.Marque, S.Marrone, P.Mastinu, A.Mengoni, P.M.Milazzo, C.Moreau, M.Mosconi, F.Neve, H.Oberhummer, M.Oshima, S.O'Brien, J.Pancin, C.Papachristodoulou, C.Papadopoulo, C.Paradela, N.Patroni, A.Pavlik, P.Pavlopoulo, L.Perrot, R.Plag, A.Plompen, A.Pluki, A.Poch, C.Pretel, J.Quesada, T.Rauscher, R.Reifarth, M.Rosetti, C.Rubbia, G.Rudolf, P.Rullhusen, J.Salgado, L.Sarchiapone, I.Savvidi, C.Stephan, G.Tagliente, J.L.Tain, L.Tassan-Got, L.Tavora, R.Terlizzi, G.Vannini, P.Vaz, A.Ventura, D.Villamarin, M.C.Vincente, V.Vlachoudi, R.Vlastou, F.Vo, S.Walter, H.Wendler, and M.Wiescher and K. Wisshak

Subjects
25.40.Lw, 25.40.Sc, 27.80.+w, 97.10.Cv, GALACTIC CHEMICAL EVOLUTION, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], ABUNDANCES, ELEMENTS, FACILITY, Nuclear Experiment (nucl-ex), Nuclear Experiment, CROSS-SECTION, S-PROCESS, DETECTOR, CHRONOMETERS, SYSTEM, STARS
Abstract

The neutron capture cross section of Bi209 has been measured at the CERN n TOF facility by employing the pulse-height-weighting technique. Improvements over previous measurements are mainly because of an optimized detection system, which led to a practically negligible neutron sensitivity. Additional experimental sources of systematic error, such as the electronic threshold in the detectors, summing of gamma-rays, internal electron conversion, and the isomeric state in bismuth, have been taken into account. Gamma-ray absorption effects inside the sample have been corrected by employing a nonpolynomial weighting function. Because Bi209 is the last stable isotope in the reaction path of the stellar s-process, the Maxwellian averaged capture cross section is important for the recycling of the reaction flow by alpha-decays. In the relevant stellar range of thermal energies between kT=5 and 8 keV our new capture rate is about 16% higher than the presently accepted value used for nucleosynthesis calculations. At this low temperature an important part of the heavy Pb-Bi isotopes are supposed to be synthesized by the s-process in the He shells of low mass, thermally pulsing asymptotic giant branch stars. With the improved set of cross sections we obtain an s-process fraction of 19(3)% of the solar bismuth abundance, resulting in an r-process residual of 81(3)%. The present (n,gamma) cross-section measurement is also of relevance for the design of accelerator driven systems based on a liquid metal Pb/Bi spallation target., 10 pages, 5figures, recently published in Phys. Rev. C

Published
2006
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4. Measurement of the 151Sm(n,γ) cross section from 0.6 eV to 1 MeV via the neutron time-of-flight technique at the CERN n_TOF facility

Author

S. Marrone, U. Abbondanno, G. Aerts, F. Alvarez Velarde, H. Alvarez Pol, S. Andriamonje, J. Andrzejewski, G. Badurek, P. Baumann, F. Becvar, J. Benlliure, E. Berthomieux, F. Calvino, D. Cano Ott, R. Capote, P. Cennini, V. Chepel, E. Chiaveri, N. Colonna, G. Cortes, D. Cortina, A. Couture, J. Cox, S. Dababneh, M. Dahlfors, S. David, R. Dolfini, C. Domingo Pardo, I. Duran Escribano, M. Embid Segura, L. Ferrant, A. Ferrari, R. Ferreira Marques, H. Frais Koelbl, K. Fujii, W. I. Furman, R. Gallino, I. Goncalves, E. Gonzalez Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera Martinez, S. Isaev, E. Jericha, F. Kappeler, Y. Kadi, D. Karadimos, M. Kerveno, V. Ketlerov, P. E. Koehler, V. Konovalov, M. Krticka, C. Lamboudis, H. Leeb, A. Lindote, M. I. Lopes, M. Lozano, S. Lukic, J. Marganiec, J. Martinez Val, P. F. Mastinu, A. Mengoni, P. M. Milazzo, A. Molina Coballes, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, J. Pancin, T. Papaevangelou, C. Paradela, A. Pavlik, P. Pavlopoulos, J. M. Perlado, L. Perrot, M. Pignatari, M. T. Pigni, R. Plag, A. Plompen, A. Plukis, A. Poch, A. Policarpo, C. Pretel, J. M. Quesada, S. Raman, W. Rapp, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, J. C. Soares, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan Got, L. M. N. Tavora, R. Terlizzi, P. Vaz, A. Ventura, D. Villamarin Fernandez, M. Vincente Vincente, V. Vlachoudis, F. Voss, H. Wendler, M. Wiescher, K. Wisshak, VANNINI, GIANNI, S.Marrone, U.Abbondanno, G. Aert, F.Alvarez-Velarde, H.Alvarez-Pol, S.Andriamonje, J.Andrzejewski, G.Badurek, P.Baumann, F.Becvar, J. Benlliure, E. Berthomieux, F. Calvino, D.Cano-Ott, R.Capote, P.Cennini, V.Chepel, E.Chiaveri, N.Colonna, G.Corte, D.Cortina, A.Couture, J.Cox, S.Dababneh, M.Dahlfor, S.David, R.Dolfini, C.Domingo-Pardo, I.Duran-Escribano, M.Embid-Segura, L.Ferrant, A.Ferrari, R.Ferreira-Marque, H.Frais-Koelbl, K.Fujii, W.I.Furman, R.Gallino, I.Goncalve, E.Gonzalez-Romero, A.Goverdovski, F.Gramegna, E.Griesmayer, F.Gunsing, B.Haa, R.Haight, M.Heil, A.Herrera-Martinez, S.Isaev, E.Jericha, F.Kappeler, Y.Kadi, D.Karadimo, M.Kerveno, V.Ketlerov, P.E.Koehler, V.Konovalov, M.Krticka, C.Lamboudi, H.Leeb, A.Lindote, M.I.Lope, M.Lozano, S.Lukic, J.Marganiec, J.Martinez-Val, P.F.Mastinu, A.Mengoni, P.M.Milazzo, A.Molina-Coballe, C.Moreau, M.Mosconi, F.Neve, H.Oberhummer, S.O'Brien, J.Pancin, T.Papaevangelou, C.Paradela, A.Pavlik, P.Pavlopoulo, J.M.Perlado, L.Perrot, M.Pignatari, M.T.Pigni, R.Plag, A.Plompen, A.Pluki, A. Poch, A.Policarpo, C.Pretel, J.M.Quesada, S.Raman, W.Rapp, T.Rauscher, R.Reifarth, M.Rosetti, C.Rubbia, G.Rudolf, P.Rullhusen, J.Salgado, J.C.Soare, C.Stephan, G.Tagliente, J.L.Tain, L.Tassan-Got, L.M.N.Tavora, R.Terlizzi, G.Vannini, P.Vaz, A.Ventura, D.Villamarin-Fernandez, M.Vincente-Vincente, V.Vlachoudi, F.Vo, H.Wendler, and M.Wiescher and K. Wisshak

Published
2006

5. The data acquisition system of the neutron time-of-flight facility n- TOF at CERN

Author

Abbondanno, U., Aerts, G., Alvarez-Velarde, F., Alvarez, H., Andriamonje, S., Andrzejewski, J., Badurek, G., Baumann, P., Becvar, F., Benlliure, J., Berthomieux, E., Betev, B., Calvino, P., Cano-Ott, D., Capote, R., Cennini, P., Chepel, V., Chiaveri, E., Colonna, N., Cortes, G., Cortina, D., Couture, A., Cox, J., Dababneh, S., David, S., Dolfini, R., Domingo-Pardo, C., Duran, I., Eleftheriadis, C., Embid-Segura, M., Ferrant, L., Ferrari, Anthony, 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., Heil, M., Herrera-Martinez, A., Isaev, S., Jericha, E., Käppeler, F., Kadi, Y., Kerveno, M., Ketlerov, V., Koehler, P.E., Konovalov, V., Kossionides, E., Krticka, M., Leeb, H., Lindote, A., Lopes, M.I., Lozano, M., Lukic, S., Marganiec, J., Marrone, S., Martinez-Val, J., Mastinu, P.F., Mengoni, A., Milazzo, P.M., Molina-Coballes, A., Moreau, C., Mosconi, M., Neves, F., Oberhummer, H., O'Brien, S., Pancin, J., Papaevangelou, T., Paradela, C., Pavlik, A., Pavlopoulos, P., Perlado, J.M., 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., Rulhusen, P., Salgado, J., Schäfer, E., Soares, J.C., Stephan, C., Tagliente, G., Tain, J.L., Tassan-Got, L., Tavora, L.M.N., Terlizzi, R., Vannini, G., Vaz, P., Ventura, A., Villamarin-Fernandez, D., Vincente-Vincente, M., Vlachoudis, V., Voss, F., Wendler, H., Wiescher, M., Wisshak, K., Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions, U.Abbondanno, G. Aert, F.Alvarez, H.Alvarez, S.Andriamonje, J.Andrzejewski, G.Badurek, P.Baumann, F.Becvar, J. Benlliure, E. Berthomieux, B.Betev, F. Calvino, D.Cano-Ott, R.Capote, P.Cennini, V.Chepel, E.Chiaveri, N.Colonna, G.Corte, D.Cortina, A.Couture, J.Cox, S.Dababneh, S.David, R.Dolfini, C.Domingo-Pardo, I.Duran, M.Embid-Segura, L.Ferrant, A.Ferrari, R.Ferreira-Marque, H.Frais-Koelbl, W.Furman, I.Goncalve, E.Gonzalez-Romero, A.Goverdovski, F.Gramegna, E.Griesmayer, F.Gunsing, B.Haa, R.Haight, M.Heil, A.Herrera-Martinez, S.Isaev, E.Jericha, Y.Kadi, F.Kappeler, M.Kerveno, V.Ketlerov, P.E.Koehlera, V.Konovalov, M.Krticka, H.Leeb, A.Lindote, M.I.Lope, M. Lozano, S.Lukic, J.Marganiec, S.Marrone, J.Martinez-Val, P.Mastinu, A.Mengoni, P.M.Milazzo, A.Molina-Coballe, C.Moreau, M.Mosconi, F.Neve, H.Oberhummer, S.O'Brien, J.Pancin, T.Papaevangelou, C.Paradela, A.Pavlik, P.Pavlopoulo, J.M.Perlado, L.Perrot, V.Peskov, R.Plag, A.Plompen, A.Pluki, A. Poch, A.Policarpo, C.Pretel, J.M.Quesada, W. Rapp, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusena, J. Salgado, E. Schaeffer, J.C. Soare, C. Stephan, G. Tagliente, J.L. Tain, L. Tassan-Got, L.M.N. Tavora, R. Terlizzi, G. Vannini, P. Vaz, A. Ventura, D. Villamarin-Fernandez, M. Vincente-Vincente, V. Vlachoudi, F. Vo, H. Wendler, M. Wiescher, K. Wisshak., Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and TOF

Subjects
Nuclear and High Energy Physics, Memory buffer register, TheoryofComputation_COMPUTATIONBYABSTRACTDEVICES, Radiative capture, Computer interfaces, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, ComputingMethodologies_ARTIFICIALINTELLIGENCE, Radiació, Nuclear physics--Experiments, Nuclear magnetic resonance, Data acquisition, Neutron flux, 0103 physical sciences, Pulse shape analysis, Neutron, 010306 general physics, Instrumentation, Physics, Large Hadron Collider, Física [Àrees temàtiques de la UPC], 010308 nuclear & particles physics, business.industry, 25.40.Lw, 25.40.Ny, 29.50.+v, 29.85.+c, Neutron time-of-flight spectroscopy, TheoryofComputation_GENERAL, Dead time, Flash-ADC, Time of flight, Neutron capture, Física nuclear -- Experiments, ComputingMethodologies_PATTERNRECOGNITION, business, Computer hardware
Abstract

The n_TOF facility at CERN has been designed for the measurement of neutron capture, fission and (n; n) crosssections 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 2GHz and 8 Mbyte memory buffer. The software is written in C and Cþþand is running on PCs equipped with RedHat Linux.

Published
2005
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