DHCAL with Minimal Absorber: Measurements with Positrons

• Published in: arXiv.org
• Main Authors: The CALICE Collaboration, Freund, B, Neubüser, C, Repond, J, Schlereth, J, Xia, L, Dotti, A, Grefe, C, Ivantchenko, V, J Berenguer Antequera, E Calvo Alamillo, Marin, J, Puerta-Pelayo, J, Verdugo, A, Brianne, E, Ebrahimi, A, Gadow, K, Göttlicher, P, Günter, C, Hartbrich, O, Hermberg, B, Irles, A, Krivan, F, Krüger, K, Kvasnicka, J, S Lu, Lutz, B, Morgunov, V, Provenza, A, Reinecke, M, Sefkow, F, Schuwalow, S, Tran, H L, Garutti, E, Laurien, S, Matysek, M, Ramilli, M, Schroeder, S, Bilki, B, Norbeck, E, Northacker, D, Onel, Y, Cvach, J, Gallus, P, Havranek, M, Janata, M, Kovalcuk, M, Lednicky, D, Marcisovsky, M, Polak, I, Popule, J, Tomasek, L, Tomasek, M, Sicho, P, Smolik, J, Vrba, V, Zalesak, J, B van Doren, Wilson, G W, Miyazaki, Y, Sudo, Y, Suehara, T, Tomita, T, Ueno, H, Yoshioka, T, Bilokin, S, Bonis, J, Cornebise, P, Pöschl, R, Richard, F, Thiebault, A, Zerwas, D, J -Y Hostachy, Morin, L, Besson, D, Chadeeva, M, Danilov, M, Markin, O, Popova, E, Gabriel, M, Goecke, P, Kiesling, C, van der Kolk, N, Simon, F, Szalay, M, Corriveau, F, Blazey, G C, Dyshkant, A, Francis, K, Zutshi, V, Kotera, K, Ono, H, Takeshita, T, Ieki, S, Kamiya, Y, Ootani, W, Shibata, N, Jeans, D, Komamiya, S, Nakanishi, H
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 04.03.2016
• Subjects: Absorbers; Cassettes; Nuclear interactions; Particle beams; Physics - Instrumentation and Detectors; Positrons; Thickness
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.1603.01652

In special tests, the active layers of the CALICE Digital Hadron Calorimeter prototype, the DHCAL, were exposed to low energy particle beams, without being interleaved by absorber plates. The thickness of each layer corresponded approximately to 0.29 radiation lengths or 0.034 nuclear interaction lengths, defined mostly by the copper and steel skins of the detector cassettes. This paper reports on measurements performed with this device in the Fermilab test beam with positrons in the energy range of 1 to 10 GeV. The measurements are compared to simulations based on GEANT4 and a standalone program to emulate the detailed response of the active elements.