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Calibration procedures and data correction of ePix100 detectors at the European XFEL

Duarte, N. ; Ahmed, K. ; Cascella, M. LU orcid ; Hauf, S. ; Preston, T. ; Shayduk, R. ; Turcato, M. and Ramilli, M. (2023) In Journal of Instrumentation 18(11).
Abstract

The European XFEL is a research facility that delivers extremely bright and short coherent X-ray pulses of tunable energy at MHz repetition rate, providing unprecedented capabilities to conduct scientific research across multiple domains. Among the suite of deployed detectors, several ePix100 modules, belonging to the family of ePix detectors developed at SLAC, are used. These charge-integrating hybrid pixel detectors offer single-photon resolution for energies above 2 keV and a dynamic range of 100 photons at 8 keV. Their low noise, small pixel size, compact dimensions, maneuverability and vacuum compatibility make them an attractive choice for some of the hard X-ray instruments at the European XFEL for imaging, spectroscopy, and... (More)

The European XFEL is a research facility that delivers extremely bright and short coherent X-ray pulses of tunable energy at MHz repetition rate, providing unprecedented capabilities to conduct scientific research across multiple domains. Among the suite of deployed detectors, several ePix100 modules, belonging to the family of ePix detectors developed at SLAC, are used. These charge-integrating hybrid pixel detectors offer single-photon resolution for energies above 2 keV and a dynamic range of 100 photons at 8 keV. Their low noise, small pixel size, compact dimensions, maneuverability and vacuum compatibility make them an attractive choice for some of the hard X-ray instruments at the European XFEL for imaging, spectroscopy, and scattering experiments. The European XFEL is committed to providing users with completely corrected detector data. To achieve this goal, periodic calibration procedures are conducted to generate calibration constants that allow the conversion of raw detector output into physically meaningful information through a series of successive data correction steps. In this work, an overview of the ePix100 calibration procedures and correction algorithms will be provided, with a focus on particularly relevant processes for this detector, such as common mode noise and charge sharing correction.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Instrumentation for FEL, Pattern recognition, cluster finding, calibration and fitting methods, Solid state detectors, X-ray detectors
in
Journal of Instrumentation
volume
18
issue
11
article number
C11008
publisher
IOP Publishing
external identifiers
  • scopus:85177493918
ISSN
1748-0221
DOI
10.1088/1748-0221/18/11/C11008
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2023 IOP Publishing Ltd and Sissa Medialab
id
70f7004c-1dbd-4241-9e96-419153d32c31
date added to LUP
2024-01-03 12:16:38
date last changed
2024-01-03 12:18:53
@article{70f7004c-1dbd-4241-9e96-419153d32c31,
  abstract     = {{<p>The European XFEL is a research facility that delivers extremely bright and short coherent X-ray pulses of tunable energy at MHz repetition rate, providing unprecedented capabilities to conduct scientific research across multiple domains. Among the suite of deployed detectors, several ePix100 modules, belonging to the family of ePix detectors developed at SLAC, are used. These charge-integrating hybrid pixel detectors offer single-photon resolution for energies above 2 keV and a dynamic range of 100 photons at 8 keV. Their low noise, small pixel size, compact dimensions, maneuverability and vacuum compatibility make them an attractive choice for some of the hard X-ray instruments at the European XFEL for imaging, spectroscopy, and scattering experiments. The European XFEL is committed to providing users with completely corrected detector data. To achieve this goal, periodic calibration procedures are conducted to generate calibration constants that allow the conversion of raw detector output into physically meaningful information through a series of successive data correction steps. In this work, an overview of the ePix100 calibration procedures and correction algorithms will be provided, with a focus on particularly relevant processes for this detector, such as common mode noise and charge sharing correction.</p>}},
  author       = {{Duarte, N. and Ahmed, K. and Cascella, M. and Hauf, S. and Preston, T. and Shayduk, R. and Turcato, M. and Ramilli, M.}},
  issn         = {{1748-0221}},
  keywords     = {{Instrumentation for FEL; Pattern recognition, cluster finding, calibration and fitting methods; Solid state detectors; X-ray detectors}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{11}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Instrumentation}},
  title        = {{Calibration procedures and data correction of ePix100 detectors at the European XFEL}},
  url          = {{http://dx.doi.org/10.1088/1748-0221/18/11/C11008}},
  doi          = {{10.1088/1748-0221/18/11/C11008}},
  volume       = {{18}},
  year         = {{2023}},
}