The NA62 experiment [1] will measure the BR(K+ →π+ν¯ ν) to within about 10%. To reject the dominant background from final state photons, the large-angle vetoes (LAVs) must detect particles with better than 1 ns time resolution and 10% energy resolution over a very large energy range. A low threshold, large dynamic range, Time-over-threshold based solution has been developed for the LAV front end electronics. Our custom 32 channel 9U board uses a pair of low threshold discriminators for each channel to produce LVDS logic signals. The achieved time resolution obtained in laboratory, coupled to an HPTDC based readout board, is∼150 ps.
Performance of the NA62 LAV front-end electronics / Antonelli, A.; Corradi, G.; Gonnella, F.; Moulson, M.; Paglia, C.; Raggi, M.; Spadaro, T.; Tagnani, D.; Ambrosino, F.; Di Filippo, D.; Massarotti, P.; Napolitano, M.; Costantini, F.; Fantechi, R.; Mannelli, I.; Raffaelli, F.; Leonardi, E.; Palladino, V.; Valente, P.. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 8:(2013), pp. C01020-C01020. ((Intervento presentato al convegno Topical workshop on electronics for particle physics 2012 tenutosi a Oxford; UK [10.1088/1748-0221/8/01/C01020].
Performance of the NA62 LAV front-end electronics
Raggi, M.Membro del Collaboration Group
;
2013
Abstract
The NA62 experiment [1] will measure the BR(K+ →π+ν¯ ν) to within about 10%. To reject the dominant background from final state photons, the large-angle vetoes (LAVs) must detect particles with better than 1 ns time resolution and 10% energy resolution over a very large energy range. A low threshold, large dynamic range, Time-over-threshold based solution has been developed for the LAV front end electronics. Our custom 32 channel 9U board uses a pair of low threshold discriminators for each channel to produce LVDS logic signals. The achieved time resolution obtained in laboratory, coupled to an HPTDC based readout board, is∼150 ps.| File | Dimensione | Formato | |
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