Status of NEMO

The activities towards the realization of a km3 Cherenkov neutrino detector carried out by the NEMO Collaboration are described. Long-term exploration of a 3500 m deep-sea site close to the Sicilian coast has shown that it is optimal for the installation of the detector. The realization of a Phase-1 project, which is under way, will validate the proposed technologies for the realization of the km3 detector on a Test Site at 2000 m depth. The realization of a new infrastructure on the candidate site (Phase-2 project) will provide the possibility to test detector components at 3500 m depth

Procedures and results of the measurements on large area photomultipliers for the NEMO project

The selection of the photomultiplier plays a crucial role in the R&D activity related to a large-scale underwater neutrino telescope. This paper illustrates the main procedures and facilities used to characterize the performances of 72 large area photomultipliers, Hamamatsu model R7081 sel. The voltage to achieve a gain of 5 x 107, dark count rate and single photoelectron time and charge properties of the overall response were measured with a properly attenuated 410 nm pulsed laser. A dedicated study of the spurious pulses was also performed. The results prove that the photomultipliers comply with the general requirements imposed by the project. (C) 2009 Elsevier B.V. All rights reserved

Procedures and results of the measurements on large area photomultipliers for the NEMO project

The selection of the photomultiplier plays a crucial role in the R&D activity related to a large-scale underwater neutrino telescope. This paper illustrates the main procedures and facilities used to characterize the performances of 72 large area photomultipliers, Hamamatsu model R7081 sel. The voltage to achieve a gain of 5×17, dark count rate and single photoelectron time and charge properties of the overall response were measured with a properly attenuated 410 nm pulsed laser. A dedicated study of the spurious pulses was also performed. The results prove that the photomultipliers comply with the general requirements imposed by the project

The NEMO project: A status report

The latest results and the activities towards the construction of a km(3) Cherenkov neutrino detector carried out by the NEMO Collaboration are described. Long-term exploration of a 3500m deep-sea site close to the Sicilian coast has shown that it is optimal for the installation of the detector. The NEMO Phase-1 project has validated several technologies proposed for the construction of the km3 detector on a test site at 2000 m depth. The new infrastructure on the candidate Capo Passero site set up as part of the Phase-2 project will provide the possibility to test detector components at 3500 m depth. (c) 2010 Elsevier B.V. All rights reserved

Timing calibration for the NEMO (NEutrino Mediterranean Observatory) prototype2007 IEEE Nuclear Science Symposium Conference Record

The timing calibration is a delicate operation to perform for assuring the full functionality of a large underwater neutrino telescope. In this paper we illustrate the main features of our system for timing calibration tailored to the needs of the prototype of the NEMO (NEutrino Mediterranean Observatory) apparatus. We point out that the approach proposed can be easily adapted to work in any underwater neutrino telescope

The NEMO project: A status report

none87The latest results and the activities towards the construction of a km3 Cherenkov neutrino detector carried out by the NEMO Collaboration are described. Long-term exploration of a 3500 m deep-sea site close to the Sicilian coast has shown that it is optimal for the installation of the detector. The NEMO Phase-1 project has validated several technologies proposed for the construction of the km3 detector on a test site at 2000 m depth. The new infrastructure on the candidate Capo Passero site set up as part of the Phase-2 project will provide the possibility to test detector components at 3500 m depth.M. Taiuti;S. Aiello;F. Ameli;I. Amore;M. Anghinolfi;A. Anzalone;G. Barbarino;M. Battaglieri;M. Bazzotti;A. Bersani;N. Beverini;S. Biagi;M. Bonori;B. Bouhdaef;M. Brunoldi;G. Cacopardo;A. Capone;L. Caponetto;G. Carminati;T. Chiarusi;M. Circella;R. Cocimano;R. Coniglione;M. Cordelli;M. Costa;A. D’Amico;G. De Bonis;G. De Rosa;G. De Ruvo;R. De Vita;C. Distefano;E. Falchini;V. Flaminio;K. Fratini;A. Gabrielli;S. Galatà;E. Gandolfi;G. Giacomelli;F. Giorgi;G. Giovanetti;A. Grimaldi;R. Habel;M. Imbesi;V. Kulikovsky;D. Lattuada;E. Leonora;A. Lonardo;D. Lo Presti;F. Lucarelli;A. Margiotta;A. Marinelli;A. Martini;R. Masullo;E. Migneco;S. Minutoli;M. Morganti;P. Musico;M. Musumeci;C.A. Nicolau;A. Orlando;M. Osipenko;R. Papaleo;V. Pappalardo;P. Piattelli;D. Piombo;G. Raia;N. Randazzo;S. Reito;G. Ricco;G. Riccobene;M. Ripani;A. Rovelli;M. Ruppi;G.V. Russo;S. Russo;P. Sapienza;D. Sciliberto;M. Sedita;E. Shirokov;F. Simeone;V. Sipala;M. Spurio;L. Trasatti;S. Urso;M. Vecchi;P. Vicini;R. WischnewskiTaiuti, MAURO GINO; S., Aiello; F., Ameli; I., Amore; M., Anghinolfi; A., Anzalone; G., Barbarino; M., Battaglieri; M., Bazzotti; A., Bersani; N., Beverini; S., Biagi; M., Bonori; B., Bouhdaef; Brunoldi, Marco; G., Cacopardo; A., Capone; L., Caponetto; G., Carminati; T., Chiarusi; M., Circella; R., Cocimano; R., Coniglione; M., Cordelli; M., Costa; A., D’Amico; G., De Bonis; G., De Rosa; G., De Ruvo; R., De Vita; C., Distefano; E., Falchini; V., Flaminio; Fratini, Katia; A., Gabrielli; S., Galatà; E., Gandolfi; G., Giacomelli; F., Giorgi; G., Giovanetti; A., Grimaldi; R., Habel; M., Imbesi; V., Kulikovsky; D., Lattuada; E., Leonora; A., Lonardo; D., Lo Presti; F., Lucarelli; A., Margiotta; A., Marinelli; A., Martini; R., Masullo; E., Migneco; S., Minutoli; M., Morganti; P., Musico; M., Musumeci; C. A., Nicolau; A., Orlando; M., Osipenko; R., Papaleo; V., Pappalardo; P., Piattelli; D., Piombo; G., Raia; N., Randazzo; S., Reito; Ricco, Giovanni; G., Riccobene; M., Ripani; A., Rovelli; M., Ruppi; G. V., Russo; S., Russo; P., Sapienza; D., Sciliberto; M., Sedita; E., Shirokov; F., Simeone; V., Sipala; M., Spurio; L., Trasatti; S., Urso; M., Vecchi; P., Vicini; R., Wischnewsk

Recent achievements of the NEMO project

The status of the activities towards the realization of a km3 Cherenkov neutrino detector carried out by the NEMO Collaboration is described. The realization of a Phase-1 project, which is under way, will validate the proposed technologies for the realization of the km3 detector on a Test Site at 2000 m depth. The realization of a new infrastructure on the candidate site (Phase-2 project) will provide the possibility to test detector components at 3500 m depth

Status of NEMO

The activities towards the realization of a km3 Cherenkov neutrino detector carried out by the NEMO Collaboration are described. Long-term exploration of a 3500 m deep-sea site close to the Sicilian coast has shown that it is optimal for the installation of the detector. The realization of a Phase-1 project, which is under way, will validate the proposed technologies for the realization of the km3 detector on a Test Site at 2000 m depth. The realization of a new infrastructure on the candidate site (Phase-2 project) will provide the possibility to test detector components at 3500 m depth