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On the Charge Collection Efficiency of the PERCIVAL Detector

DOI: 10.1088/1748-0221/11/12/C12032 DOI Help

Authors: J. Correa (DESY; CFEL) , A. Marras (DESY; CFEL) , C. B. Wunderer (DESY; CFEL) , P. Göttlicher (DESY) , S. Lange (DESY; CFEL) , S. Reza (DESY; Mid Sweden University) , I. Shevyakov (DESY) , M. Tennert (DESY; CFEL) , M. Niemann (DESY; CFEL) , H. Hirsemann (DESY; CFEL) , S. Smoljanin (DESY; CFEL) , J. Supra (DESY) , Q. Xia (DESY) , M. Zimmer (DESY) , A. Allahgoli (DESY; CFEL) , A. Gloskovskii (DESY) , J. Viefhaus (DESY) , F. Scholz (DESY) , J. Seltmann (DESY) , S. Klumpp (DESY) , G. Cautero (Elettra Sincrotrone Trieste) , D. Giuressi (Elettra Sincrotrone Trieste) , A. Khromova (Elettra Sincrotrone Trieste; Università degli Studi di Trieste) , R. Menk (Elettra Sincrotrone Trieste) , G. Pinaroli (Elettra Sincrotrone Trieste; Università degli Studi di Udine) , L. Stebel (Elettra Sincrotrone Trieste) , S. Rinaldi (Elettra Sincrotrone Trieste) , N. Zema (Istituto di Struttura della Materia) , D. Catone (Istituto di Struttura della Materia) , U. Pedersen (Diamond Light Source) , N. Tartoni (Diamond Light Source) , N. Guerrini (University of Oxford) , B. Marsh (RAL (Rutherford Appleton Laboratory) / STFC) , I. Sedgwick (Science and Technology Facilities Council (STFC)) , T. J. Nicholls (RAL (Rutherford Appleton Laboratory) / STFC) , R. Turchetta (RAL (Rutherford Appleton Laboratory) / STFC) , H. J. Hyun (Pohang Accelerator Laboratory) , K. S. Kim (Pohang Accelerator Laboratory) , S. Y. Rah (Pohang Accelerator Laboratory) , M. E. Hoenk (Jet Prop Laboratory, California Institute of Technology) , A. D. Jewell (Jet Prop Laboratory, California Institute of Technology) , T. J. Jones (Jet Prop Laboratory, California Institute of Technology) , S. Nikzad (Jet Prop Laboratory, California Institute of Technology) , H. Graafsma (DESY; Mid Sweden University)
Co-authored by industrial partner: No

Type: Conference Paper
Conference: 18th International Workshop on Radiation Imaging Detectors (IWORID2016)
Peer Reviewed: No

State: Published (Approved)
Published: December 2016

Abstract: The PERCIVAL soft X-ray imager is being developed by DESY, RAL, Elettra, DLS, and PAL to address the challenges at high brilliance Light Sources such as new-generation Synchrotrons and Free Electron Lasers. Typical requirements for detector systems at these sources are high frame rates, large dynamic range, single-photon counting capability with low probability of false positives, high quantum efficiency, and (multi)-mega-pixel arrangements. PERCIVAL is a monolithic active pixel sensor, based on CMOS technology. It is designed for the soft X-ray regime and, therefore, it is post-processed in order to achieve high quantum efficiency in its primary energy range (250 eV to 1 keV) . This work will report on the latest experimental results on charge collection efficiency obtained for multiple back-side-illuminated test sensors during two campaigns, at the P04 beam-line at PETRA III, and the CiPo beam-line at Elettra, spanning most of the primary energy range as well as testing the performance for photon-energies below 250 eV . In addition, XPS surface analysis was used to cross-check the obtained results.

Subject Areas: Technique Development, Physics


Technical Areas: Detectors