Journal Article/Contribution to a conference proceedings

PUBDB-2025-04152

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png High-Z sensors at MHz repetition rate FELs: first AGIPD results

Magalhaes Suarez, D. (Corresponding author)CFEL*DESY* ; Hirsemann, H.CFEL*XFEL.EU*DESY* ; Klujev, A.CFEL*XFEL.EU*DESY* ; Konopkova, Z.XFEL.EU* ; Lange, S.CFEL*DESY* ; Laurus, T.CFEL*XFEL.EU*DESY* ; Niemann, M.CFEL*XFEL.EU*DESY* ; Palutke, S.XFEL.EU*DESY* ; Pennicard, D.CFEL*XFEL.EU*DESY* ; Ramilli, M.XFEL.EU* ; Rovensky, V.XFEL.EU* ; Strohm, C.XFEL.EU*DESY* ; Sztuk-Dambietz, J.XFEL.EU* ; Trunk, U.CFEL*XFEL.EU*DESY* ; Veale, M.Extern*XFEL.EU* ; Wilson, M.Extern*XFEL.EU* ; Graafsma, H.CFEL*XFEL.EU*DESY*

2025
Inst. of Physics London

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Please use a persistent id in citations: doi:10.1088/1748-0221/21/01/C01019  doi:10.3204/PUBDB-2025-04152

Abstract: To address new applications in the 20–30 keV photon energy range at the European XFEL, where silicon sensors lose quantum efficiency, the AGIPD consortia has developed anAGIPD detector prototype with high-Z sensor materials. An electron-collecting version of the chip (ecAGIPD) was designed to leverage from the higher mobility and longer lifetime of electrons with respect to holes in the candidate materials: chromium-doped gallium arsenide (GaAs:Cr) and high-flux cadmium zinc telluride (CdZnTe). This work reports on the characterization of GaAs and high-flux CdZnTe ecAGIPD prototypes at the HED instrument at the European XFEL. Their time response, linearity and performance at 2.2 and 4.5 MHz frame rates were evaluated. Preliminary results demonstrate good linearity of both materials up to 1.6e+03 15 keV photons/mm2/pulse, and a residual after-pulse signal corresponding to less than one photon on CdZnTe, up to an estimated flux of 1.2e+05 24 keV photons/mm2/pulse.

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Contributing Institute(s):

1. FS-Detektor Systeme (FS-DS)
2. Detector Operations (XFEL_DO_DD_DET)
3. HED (XFEL_E1_HED)

Research Program(s):

1. 622 - Detector Technologies and Systems (POF4-622) (POF4-622)
2. HiBEF - HIBEF Consortium (2020_Join2-HiBEF) (2020_Join2-HiBEF)

Experiment(s):

1. HED: High-Density matter Experiments (SASE2)

Appears in the scientific report 2025

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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