CC BY 3.0 UnportedAbramowicz, H.Abusleme, A.Afanaciev, K.Aguilar, J.Alvarez, E.Avila, D.Benhammou, Y.Bortko, L.Borysov, O.Bergholz, M.Bozovic-Jelisavcic, I.Castro, E.Chelkov, G.Coca, C.Daniluk, W.Dumitru, L.Elsener, K.Fadeyev, V.Firlej, M.Firu, E.Fiutowski, T.Ghenescu, V.Gostkin, M.Henschel, H.Idzik, M.Ishikawa, A.Kananov, S.Kollowa, S.Kotov, S.Kotula, J.Kozhevnikov, D.Kruchonok, V.Krupa, B.Kulis, Sz.Lange, W.Lesiak, T.Levy, A.Levy, I.Lohmann, W.Lukic, S.Milke, C.Moron, J.Moszczynski, A.Neagu, A.T.Novgorodova, O.Oliwa, K.Orlandea, M.Pandurovic, M.Pawlik, B.Preda, T.Przyborowski, D.Rosenblat, O.Sailer, A.Sato, Y.Schumm, B.Schuwalow, S.Smiljanic, I.Smolyanskiy, P.Swientek, K.Teodorescu, E.Terlecki, P.Wierba, W.Wojton, T.Yamaguchi, S.Yamamoto, H.Zawiejski, L.Zgura, I.S.Zhemchugov, A.2022-07-072022-07-072015https://oa.tib.eu/renate/handle/123456789/9648https://doi.org/10.34657/8686Detector-plane prototypes of the very forward calorimetry of a future detector at an e+e− collider have been built and their performance was measured in an electron beam. The detector plane comprises silicon or GaAs pad sensors, dedicated front-end and ADC ASICs, and an FPGA for data concentration. Measurements of the signal-to-noise ratio and the response as a function of the position of the sensor are presented. A deconvolution method is successfully applied, and a comparison of the measured shower shape as a function of the absorber depth with a Monte-Carlo simulation is given.enghttps://creativecommons.org/licenses/by/3.0/610CalorimetersFront-end electronics for detector readoutArticle