Studying the GRAiNITA concept: first test beam results

Journal of Instrumentation 2026 Open access

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Authors: S. Barsuk, Oleg Bezshyyko, Ianina Boiaryntseva, Andrey Boyarintsev, D. Breton, H. Chanal, Alexander M. Dubovik, L. Golinka-Bezshyyko, Carlos Gonçalves, Y. R. Hou, Giulia Hull, M. Imre
+11 more Denys Klekots, J. Lefrançois, Jihane Maalmi, Magali Magne, B. Mathon, S. Monteil, Sebastien Olmo, David Picard, Marie-Hélène Schune, І.А. Tupitsyna, Mykhailo Yeresko
DOI: 10.1088/1748-0221/21/03/p03048
Cited by: 0
References: 6

Abstract

Abstract Data collected over a two-day period in June 2024 at the CERN SPS H9 test beam using a small-scale GRAiNITA prototype have been analyzed to characterize the detector's energy-resolution performance. The measurements allow for a first estimate of the constant term associated with detector non-uniformity. Although the evaluation is limited by the small prototype size and the use of pion beams, the results indicate that the non-uniformity-related constant term is significantly below 1 %. Furthermore, the test-beam data confirm that the contribution to the energy resolution arising from photo-electron statistics is approximately 1 %/√( E ). These findings validate the expected calorimetric performance of the GRAiNITA concept and provide important input for the design and optimization of future full-scale detectors.

Fields of Study & Subjects

Particle Detector Development and Performance Particle physics theoretical and experimental studies Radiation Detection and Scintillator Technologies

Publication details

Journal / source
Journal of Instrumentation
Publisher
IOP Publishing
Volume
21
Issue
03
Pages
P03048–P03048
Publication date
1 March 2026
Language
EN