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Yoshioka, T.; Nomachi, M.; Artamanov, A.; Bhuyan, B.; Frank, J.S.; Fujiwara, T.; Higa, K.; Kettell, S.H.; Komatsubara, T.K.; Konaka, A.; Kozjevnikov, A.; Kushnirenko, A.; Muramatsu, N.; Nakano, T.; Nomura, T.; Petrenko, S.; Poutissou, R.; Redlinger, G.; Sekiguchi, T.; Shinkawa, T.; Sugimoto, S.; Tsunemi, T.
IEEE transactions on nuclear science, 2004-June, 2004-06-00, 20040601, Letnik: 51, Številka: 3Journal Article
A new programmable trigger board and digital mean-timer modules using complex programmable logic device have been introduced to the trigger system of the BNL-E949 experiment. The online dead time was reduced from 4.0% to 1.7% by introducing an on-chip prescaler to the programmable trigger board. The acceptance loss of the online photon veto was reduced from 4.9% to 1.8% by introducing the mean-timer modules.
