An iron- plastic-scintillator shashlik calorimeter with a 4.3 X0 longitudinal segmentation was tested in November 2016 at the CERN East Area facility with charged particles up to 5 GeV. The performance of this detector in terms of electron energy resolution, linearity, response to muons and hadron showers are presented in this paper and compared with simulation. Such a fine-grained longitudinal segmentation is achieved using a very compact light readout system developed by the SCENTT and ENUBET Collaborations, which is based on fiber-SiPM coupling boards embedded in the bulk of the detector. We demonstrate that this system fulfills the requirements for neutrino physics applications and discuss performance and additional improvements.
@article{arxiv.1801.06167,
title = {Testbeam performance of a shashlik calorimeter with fine-grained longitudinal segmentation},
author = {G. Ballerini and A. Berra and R. Boanta and C. Brizzolari and G. Brunetti and M. G. Catanesi and S. Cecchini and F. Cindolo and A. Coffani and G. Collazuol and E. Conti and F. Dal Corso and G. De Rosa and A. Gola and C. Jollet and A. Longhin and L. Ludovici and L. Magaletti and G. Mandrioli and A. Margotti and V. Mascagna and A. Meregaglia and M. Pari and L. Pasqualini and G. Paternoster and L. Patrizii and C. Piemonte and M. Pozzato and F. Pupilli and M. Prest and E. Radicioni and A. C. Ruggeri and G. Sirri and M. Soldani and M. Tenti and F. Terranova and E. Vallazza},
journal= {arXiv preprint arXiv:1801.06167},
year = {2018}
}