The NA62 LAV front-end electronics
Abstract
The branching ratio for the decay K+→π+νbar nu 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.
- Publication:
-
Journal of Instrumentation
- Pub Date:
- January 2012
- DOI:
- 10.1088/1748-0221/7/01/C01097
- arXiv:
- arXiv:1111.5768
- Bibcode:
- 2012JInst...7C1097A
- Keywords:
-
- Physics - Instrumentation and Detectors;
- High Energy Physics - Experiment
- E-Print:
- prepared for the TWEPP 2011 conference proceedings