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Development and first performance evaluation of multi-element monolithic HPGe detector for X-ray spectroscopy

Goyal, N. ; Iguaz, F. J. ; Aplin, S. ; Balerna, A. ; Bell, P. LU ; Casas, J. ; Cascella, M. LU orcid ; Chatterji, S. ; Cohen, C. and Collet, E. , et al. (2026) In Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1092.
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, intended for handing high count rates of 30 Mcps, across a broad energy range (5–100 keV). The present prototype demonstrates a throughput of about 150–200 kcps/pixel, corresponding to a total count rate of about 1.5–2 Mcps for the full 10 element detector. 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... (More)

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, intended for handing high count rates of 30 Mcps, across a broad energy range (5–100 keV). The present prototype demonstrates a throughput of about 150–200 kcps/pixel, corresponding to a total count rate of about 1.5–2 Mcps for the full 10 element detector. 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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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Detector characterization, High purity germanium sensors, Spectroscopy detectors, Synchrotron applications, XAFS, XRF
in
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
volume
1092
article number
171854
publisher
Elsevier
external identifiers
  • scopus:105044302291
ISSN
0168-9002
DOI
10.1016/j.nima.2026.171854
language
English
LU publication?
yes
id
5072bb66-62a3-4e30-9c5e-9ad8d9e48f69
date added to LUP
2026-10-01 11:28:40
date last changed
2026-10-01 11:29:06
@article{5072bb66-62a3-4e30-9c5e-9ad8d9e48f69,
  abstract     = {{<p>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, intended for handing high count rates of 30 Mcps, across a broad energy range (5–100 keV). The present prototype demonstrates a throughput of about 150–200 kcps/pixel, corresponding to a total count rate of about 1.5–2 Mcps for the full 10 element detector. 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.</p>}},
  author       = {{Goyal, N. and Iguaz, F. J. and Aplin, S. and Balerna, A. and Bell, P. and Casas, J. and Cascella, M. and Chatterji, S. and Cohen, C. and Collet, E. and Gimenez, E. N. and Graafsma, H. and Hirsemann, H. and Klementiev, K. and Kolodziej, T. and Martin, T. and Menk, R. H. and Menneglier, C. and Meraihia, C. and Murias, J. R. and Porro, M. and Quispe, M. and Schmitt, B. and Scully, S. and Turcato, M. and Ward, C. and Welter, E.}},
  issn         = {{0168-9002}},
  keywords     = {{Detector characterization; High purity germanium sensors; Spectroscopy detectors; Synchrotron applications; XAFS; XRF}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment}},
  title        = {{Development and first performance evaluation of multi-element monolithic HPGe detector for X-ray spectroscopy}},
  url          = {{http://dx.doi.org/10.1016/j.nima.2026.171854}},
  doi          = {{10.1016/j.nima.2026.171854}},
  volume       = {{1092}},
  year         = {{2026}},
}