Measurement of the distribution of $^{207}$Bi depositions on calibration sources for SuperNEMO
Creators: name: Arnold, R.
name: Augier, C.
name: Barabash, A. S.
name: Basharina-Freshville, A.
name: Birdsall, E.
name: Blondel, S.
name: Bongrand, M.
name: Boursette, D.
name: Breier, R.
name: Brudanin, V.
name: Busto, J.
name: Calvez, S.
name: Cerna, C.
name: Cesar, J. P.
name: Ceschia, M.
name: Chapon, A.
name: Chauveau, E.
name: Chopra, A.
name: Dawson, L.
name: De Capua, S.
name: Duchesneau, D.
name: Durand, D.
name: Eurin, G.
name: Evans, J. J.
name: Filosofov, D.
name: Flack, R.
name: Franchini, P.
name: Girard-Carillo, C.
name: Gómez, H.
name: Guillon, B.
name: Guzowski, P.
name: Hoballah, M.
name: Hodák, R.
name: Hussain, M. H.
name: Jeremie, A.
name: Jullian, S.
name: Kaizer, J.
name: Klimenko, A.
name: Kochetov, O.
name: Konovalov, S. I.
name: Kovalenko, V.
name: Lalanne, D.
name: Lang, K.
name: Lemière, Y.
name: Noblet, T. Le
name: Liptak, Z.
name: Liu, X. R.
name: Loaiza, P.
name: Macko, M.
name: Macolino, C.
name: Marquet, C.
name: Mauger, F.
name: Minotti, A.
name: Mora, Y.
name: Morgan, B.
name: Mott, J.
name: Nemchenok, I.
name: Nomachi, M.
name: Nova, F.
name: Nowacki, F.
name: Ohsumi, H.
name: Oliviéro, G.
name: Pahlka, R. B.
name: Palušová, V.
name: Patrick, C.
name: Perrot, F.
name: Pin, A.
name: Piquemal, F.
name: Povinec, P.
name: Proga, M.
name: Quinn, W. S.
name: Ramachers, Y. A.
name: Remoto, A.
name: Reyss, J. L.
name: Saakyan, R.
name: Salamatin, A.
name: Salazar, R.
name: Sarazin, X.
name: Sedgbeer, J.
name: Shitov, Yu.
name: Simard, L.
name: Šimkovic, F.
name: Smolnikov, A.
name: Söldner-Rembold, S.
name: Štekl, I.
name: Suhonen, J.
name: Sutton, C. S.
name: Szklarz, G.
name: Tedjditi, H.
name: Thomas, J.
name: Timkin, V.
name: Torre, S.
name: Tretyak, Vl. I.
name: Tretyak, V. I.
name: Umatov, V. I.
name: Vilela, C.
name: Vorobel, V.
name: Waters, D.
name: Xie, F.
name: Žemlička, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: The SuperNEMO experiment will search for neutrinoless double-beta decay ($0νββ$), and study the Standard-Model double-beta decay process ($2νββ$). The SuperNEMO technology can measure the energy of each of the electrons produced in a double-beta ($ββ$) decay, and can reconstruct the topology of their individual tracks. The study of the double-beta decay spectrum requires very accurate energy calibration to be carried out periodically. The SuperNEMO Demonstrator Module will be calibrated using 42 calibration sources, each consisting of a droplet of $^{207}$Bi within a frame assembly. The quality of these sources, which depends upon the entire $^{207}$Bi droplet being contained within the frame, is key for correctly calibrating SuperNEMO's energy response. In this paper, we present a novel method for precisely measuring the exact geometry of the deposition of $^{207}$Bi droplets within the frames, using Timepix pixel detectors. We studied 49 different sources and selected 42 high-quality sources with the most central source positioning.
description: 16 pages, 12 figures, submitted to JINST, response to reviewer comments