The branching ratio for the decay K+ -> pi(+)nu(nu) over bar is sensitive to new physics; the NA62 experiment will measure it to within about 10%. To reject the dominant background from channels with 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. Our custom readout board uses a time-over-threshold discriminator coupled to a TDC as a straightforward solution to satisfy these requirements. A prototype of the readout system was extensively tested together with the ANTI-A2 large angle veto module at CERN in summer 2010.
The NA62 LAV front-end electronics / A., Antonelli; G., Corradi; M., Moulson; C., Paglia; M., Raggi; T., Spadaro; D., Tagnani; Ambrosino, Fabio; D. D., Filippo; Massarotti, Paolo; Napolitano, Marco; Saracino, Giulio; B., Angelucci; F., Costantini; R., Fantechi; S., Gallorini; S., Giudici; I., Mannelli; F., Raffaelli; S., Venditti; G., D'Agostini; E., Leonardi; V., Palladino; M., Serra; P., Valente. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 7:(2012), pp. C01097-C01010. [10.1088/1748-0221/7/01/C01097]
The NA62 LAV front-end electronics
AMBROSINO, FABIO;MASSAROTTI, PAOLO;NAPOLITANO, MARCO;SARACINO, GIULIO;
2012
Abstract
The branching ratio for the decay K+ -> pi(+)nu(nu) over bar is sensitive to new physics; the NA62 experiment will measure it to within about 10%. To reject the dominant background from channels with 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. Our custom readout board uses a time-over-threshold discriminator coupled to a TDC as a straightforward solution to satisfy these requirements. A prototype of the readout system was extensively tested together with the ANTI-A2 large angle veto module at CERN in summer 2010.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
