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. (Topical workshop on electronics for particle physics 2012 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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