Abstract

Future space experiments dedicated to the observation of high-energy gamma and cosmic rays will increasingly rely on a highly performing calorimetry apparatus, and their physics performance will be primarily determined by the geometrical dimensions and the energy resolution of the calorimeter deployed. Thus it is extremely important to optimize its geometrical acceptance, the granularity, and its absorption depth for the measurement of the particle energy with respect to the total mass of the apparatus which is the most important constraint for a space launch. The proposed design tries to satisfy these criteria while staying within a total mass budget of about 1.6 tons. Calocube is a homogeneous calorimeter instrumented with Cesium iodide (CsI) crystals, whose geometry is cubic and isotropic, so as to detect particles arriving from every direction in space, thus maximizing the acceptance; granularity is obtained by filling the cubic volume with small cubic CsI crystals. The total radiation length in any direction is more than adequate for optimal electromagnetic particle identification and energy measurement, whilst the interaction length is at least suficient to allow a precise reconstruction of hadronic showers. Optimal values for the size of the crystals and spacing among them have been studied. The design forms the basis of a three-year R&D activity which has been approved and financed by INFN. An overall description of the system, as well as results from preliminary tests on particle beams will be described.

Details

Title
CALOCUBE: an approach to high-granularity and homogenous calorimetry for space based detectors
Author
Bongi, M 1 ; Adriani, O 1 ; Albergo, S 2 ; Auditore, L 3 ; Bagliesi, M G 4 ; Berti, E 1 ; Bigongiari, G 4 ; Boezio, M 5 ; Bonechi, L 6 ; Bonechi, S 4 ; Bonvicini, V 5 ; Bottai, S 6 ; Brogi, P 4 ; Carotenuto, G 7 ; Cassese, A 8 ; Castellini, G 9 ; Cattaneo, P W 10 ; Cauz, D 11 ; Cumani, P 12 ; D'Alessandro, R 1 ; Detti, S 6 ; Fasoli, M 13 ; Gregorio, A 12 ; Lamberto, A 3 ; Lenzi, P 6 ; Maestro, P 4 ; Marrocchesi, P S 4 ; Mezzasalma, A 3 ; Miritello, M 14 ; Mori, N 1 ; Papini, P 6 ; Pauletta, G 11 ; Rappazzo, G F 15 ; Rappoldi, A 10 ; Ricciarini, S 8 ; Spillantini, P 1 ; Starodubtsev, O 1 ; Sulaj, A 4 ; Tiberio, A 1 ; Trifirò, A 3 ; Trimarchi, M 3 ; Vannuccini, E 6 ; Vedda, A 13 ; Zampa, G 5 ; Zampa, N 5 ; Zerbo, B 16 

1  University of Florence, Department of Physics and Astronomy, via G. Sansone 1, I-50019 Sesto Fiorentino (Firenze), Italy; INFN Firenze, via B. Rossi 1, I-50019 Sesto Fiorentino (Firenze), Italy 
2  University of Catania, of Physics and Astronomy, via S. Sofia 64, I-95123 Catania, Italy; INFN Catania, via S. Sofia 64, I-95123 Catania, Italy 
3  University of Messina, Department of Physics, sal. Sperone 31, I-98166 Messina, Italy; INFN Messina, sal. Sperone 31, I-98166 Messina, Italy 
4  University of Siena, Department of Physical Sciences, Earth and Environment, I-53100 Siena, Italy; INFN Pisa, via F. Buonarroti 2, I-56127 Pisa, Italy 
5  INFN Trieste, via Valerio 2, I-34127 Trieste, Italy 
6  INFN Firenze, via B. Rossi 1, I-50019 Sesto Fiorentino (Firenze), Italy 
7  Institute for Polymer, Composites and Biomaterials (CNR), piazzale E. Fermi 1, I-80055 Portici (Napoli), Italy 
8  INFN Firenze, via B. Rossi 1, I-50019 Sesto Fiorentino (Firenze), Italy; IFAC (CNR), via Madonna del Piano 10, I-50019 Sesto Fiorentino (Firenze), Italy 
9  IFAC (CNR), via Madonna del Piano 10, I-50019 Sesto Fiorentino (Firenze), Italy 
10  INFN Pavia, via A. Bassi 6, I-27100 Pavia, Italy 
11  INFN Trieste, via Valerio 2, I-34127 Trieste, Italy; University of Udine, Department of Chemistry, Physics and Environment, via delle Scienze 206, I-33100 Udine, Italia 
12  INFN Trieste, via Valerio 2, I-34127 Trieste, Italy; University of Trieste, Department of Physics, via Valerio 2, I-34127 Trieste, Italy 
13  University of Milano-Bicocca, Department of Materials Science, via Cozzi 55, I-20125 Milano, Italy 
14  MATIS (CNR), via S. Sofia 64, I-95123 Catania, Italy 
15  INFN Catania, via S. Sofia 64, I-95123 Catania, Italy; University of Messina, Department of Physics, sal. Sperone 31, I-98166 Messina, Italy 
16  INFN Catania, via S. Sofia 64, I-95123 Catania, Italy 
Publication year
2015
Publication date
Feb 2015
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1088/1742-6596/587/1/012029
ProQuest document ID
2576247141
Copyright
© 2015. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.