Characterization of 150 μm thick silicon microstrip prototype for the FOOT experiment
Authors: Silvestre Gianluigi , Peverini Francesca , Servoli Leonello , Kanxheri Keida , Barbanera Mattia , Placidi Pisana , Ionica Maria , Caprai Mirco , Ambrosi Giovanni , Salvi Lucia , Fiandrini Emanuele , Alpat Behcet , Alexandrov Andrey , Argirò Stefano , Arteche Diaz Raul , Bartosik Nazar , Battistoni Giuseppe , Belcari Nicola , Bellinzona Elettra , Biondi Silvia , Bisogni Maria Giuseppina , Bruni Graziano , Carra Pietro , Cavanna Francesca , Cerello Piergiorgio , Ciarrocchi Esther , Clozza Alberto , Colombi Sofia , De Gregorio Angelica , De Lellis Giovanni , Del Guerra Alberto , De Simoni Micol , Di Crescenzo Antonia , Di Ruzza Benedetto , Donetti Marco , Dong Yunsheng , Durante Marco , Faccini Riccardo , Ferrero Veronica , Finck Christian , Fiorina Elisa , Fischetti Marta , Francesconi Marco , Franchini Matteo , Franciosini Gaia , Galati Giuliana , Galli Luca , Gentile Valerio , Giraudo Giuseppe , Hetzel Ronja , Iarocci Enzo , Kraan Aafke Christine , La Tessa Chiara , Laurenza Martina , Lauria Adele , Lopez Torres Ernesto , Manna Alice , Marafini Michela , Massa Maurizio , Massimi Cristian , Mattei Ilaria , Mereghetti Alessio , Mengarelli Alberto , Moggi Andrea , Montesi Maria Cristina , Morone Maria Cristina , Morrocchi Matteo , Muraro Silvia , Pastore Alessandra , Pastrone Nadia , Patera Vincenzo , Pennazio Francesco , Pullia Marco , Ramello Luciano , Reidel Claire-Anne , Ridolfi Riccardo , Rosso Valeria , Sanelli Claudio , Sarti Alessio , Sartorelli Gabriella , Sato Osamu , Savazzi Simone , Scavarda Lorenzo , Schiavi Angelo , Schuy Christoph , Scifoni Emanuele , Sciubba Adalberto , Sécher Alexandre , Selvi Marco , Sitta Mario , Spighi Roberto , Spiriti Eleuterio , Sportelli Giancarlo , Stahl Achim , Tomassini Sandro , Tommasino Francesco , Toppi Marco , Traini Giacomo , Trigilio Antonio , Ubaldi Giacomo , Tioukov Valeri , Valetti Alessandro , Valle Serena Marta , Vanstalle Marie , Villa Mauro , Weber Ulrich , Zarrella Roberto , Zoccoli Antonio 
Published: December 2022

Abstract
The goals of the FOOT (FragmentatiOn Of Target) experiment are to measure the proton double differential fragmentation cross-section on H, C, O targets at beam energies of interest for hadrontherapy (50–250 MeV for protons and 50–400 MeV/u for carbon ions), and also at higher energy, up to 1 GeV/u for radioprotection in space. Given the short range of the fragments, an inverse kinematic approach has been chosen, requiring precise tracking capabilities for charged particles. One of the subsystems designed for the experiment will be the MSD (Microstrip Silicon Detector), consisting of three x-y measurement planes, each one made by two single sided silicon microstrip sensors. In this document, we will present a detailed description of the first MSD prototype assembly, developed by INFN Perugia group and the subsequent characterization of the detector performance. The prototype is a wide area
(∼ 100 cm2) single sensor, 150 μm thick to reduce material budget and fragmentation probability along the beam path, with 50 μm strip pitch and 2 floating strip readout approach. The pitch adapter to connect strips with the readout channels of the ASIC has been implemented directly on the silicon surface. Beside the interest for the FOOT experiment, the results in terms of cluster signal, signal-to-noise ratio, dynamic range of the readout chips, as well as long-term stability studies in terms of noise, are relevant also for other experiments where the use of thin sensors is crucial.