Publications by Johan Fopma


Performance of the front-end electronics of the ANTARES neutrino telescope

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 622 (2010) 59-73

JA Aguilar, I Al Samarai, A Albert, M Anghinolfi, G Anton, S Anvar, M Ardid, AC Assis Jesus, T Astraatmadja, JJ Aubert, R Auer, B Baret, S Basa, M Bazzotti, V Bertin, S Biagi, C Bigongiari, M Bou-Cabo, MC Bouwhuis, A Brown, J Brunner, J Busto, F Camarena, A Capone, L Caponetto, C Crloganu, G Carminati, J Carr, E Castorina, V Cavasinni, S Cecchini, T Chaleil, Charvis, T Chiarusi, N Chon Sen, M Circella, H Costantini, N Cottini, P Coyle, C Curtil, G De Bonis, N De Botton, I Dekeyser, E Delagnes, A Deschamps, C Distefano, C Donzaud, D Dornic, D Drouhin, F Druillole, T Eberl, U Emanuele, JP Ernenwein, S Escoffier, E Falchini, F Fehr, F Feinstein, V Flaminio, J Fopma, K Fratini, U Fritsch, JL Fuda, P Gay, G Giacomelli, JP Gmez-Gonzlez, K Graf, G Guillard, G Halladjian, G Hallewell, C Hoffmann, H Van Haren, AJ Heijboer, Y Hello, JJ Hernndez-Rey, B Herold, J Hßl, M De Jong, N Kalantar-Nayestanaki, O Kalekin, A Kappes, U Katz, P Kooijman, C Kopper, A Kouchner, W Kretschmer, D Lachartre, H Lafoux, R Lahmann, P Lamare, G Lambard, G Larosa, H Laschinsky, H Le Provost, A Le Van Suu, D Lefvre, T Legou, G Lelaizant, G Lim, D Lo Presti, H Loehner

ANTARES is a high-energy neutrino telescope installed in the Mediterranean Sea at a depth of 2475 m. It consists of a three-dimensional array of optical modules, each containing a large photomultiplier tube. A total of 2700 front-end ASICs named analogue ring samplers (ARS) process the phototube signals, measure their arrival time, amplitude and shape as well as perform monitoring and calibration tasks. The ARS chip processes the analogue signals from the optical modules and converts information into digital data. All the information is transmitted to shore through further multiplexing electronics and an optical link. This paper describes the performance of the ARS chip; results from the functionality and characterization tests in the laboratory are summarized and the long-term performance in the apparatus is illustrated. © 2010 Elsevier B.V.


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