Development & first Performance evaluation of multi-element monolithic HPGe detector for X-ray spectroscopy

N. Goyal; F. J. Iguaz; S. Aplin; A. Balerna; P. Bell; J. Casas; M. Cascella; S. Chatterji; C. Cohen; E. Collet; E. N. Gimenez; H. Graafsma; H. Hirsemann; K. Klementiev; T. Kolodziej; T. Martin; R. H. Menk; C. Menneglier; C. Meraihia; J. R. Murias; M. Porro; M. Quispe; B. Schmitt; S. Scully; M. Turcato; C. Ward; E. Welter

arXiv · 2512.08389

Development & first Performance evaluation of multi-element monolithic HPGe detector for X-ray spectroscopy

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Abstract

The first operational prototype of a high-purity Germanium (HPGe) detector developed within the European LEAPS-INNOV project is presented in this work. This prototype features a monolithic, multi-element sensor optimized for high-resolution X-ray spectroscopy in the hard X-ray regime, capable of handling high count rates (20-250 kcps/mm2) across a broad energy range (5-100 keV). We discuss here a complete laboratory-based characterization of the detector's performance, as well as an on-beam evaluation at the BM05 beamline of the ESRF synchrotron facility, using monochromatic X-rays in the 20-50 keV energy range. We provide a detailed performance assessment that also includes a phenomenological defect-depth estimation model.

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N. Goyal, F. J. Iguaz, S. Aplin, A. Balerna, P. Bell, J. Casas, M. Cascella, S. Chatterji, C. Cohen, E. Collet, E. N. Gimenez, H. Graafsma, H. Hirsemann, K. Klementiev, T. Kolodziej, T. Martin, R. H. Menk, C. Menneglier, C. Meraihia, J. R. Murias, M. Porro, M. Quispe, B. Schmitt, S. Scully, M. Turcato, C. Ward, E. Welter. 2025-12-09. Development & first Performance evaluation of multi-element monolithic HPGe detector for X-ray spectroscopy. https://arxiv.org/abs/2512.08389

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