Speaker
Dr
Cornelia Wunderer
(DESY)
Description
With the increased brilliance of state-of-the-art Synchrotron radiation sources and the advent of Free Electron Lasers enabling revolutionary science with EUV to X-ray photons comes an urgent need for suitable photon imaging detectors.
With both Petra III and FLASH at DESY providing unique opportunities for experiments (also) with soft X-ray beams, DESY's Photon Science Detector Group is developing sensors to meet the diverse range of requirements presented by their users. These include a demand for soft X-ray area detectors with high frame rates, very large dynamic range, single-photon resolution with low probability of false positives, and (multi)-megapixels.
Beyond involvement in the DSSC and Gotthard developments, as well as participation in the CAMP instrument, DESY is leading a collaborative effort with RAL and Elettra to develop the "Pixelated Energy Resolving CMOS Imager, Versatile and Large", short PERCIVAL, to fulfill the demand for high-performance soft-X-ray imagers.
PERCIVAL is a monolithic active pixel sensor (MAPS), i.e. based on CMOS technology. It will be back-thinned to access its primary energy range of 250 eV to 1 keV with target efficiencies above 90%. According to its preliminary specifications, the roughly 10x10cm^2, 4k x 4k monolithic sensor will operate at frame rates up to 120 Hz (commensurate with most FELs) and use multiple gains within its 25 micron pixels to measure 1 to ~ 10^5 (500eV) photons.
Small-scale prototype systems are currently being manufactured. We will present the projected PERCIVAL performance parameters and project timeline. Continued input from the community is looked for during the workshop.
Primary author
Dr
Cornelia Wunderer
(DESY)
Co-authors
Dr
Alessandro Marras
(DESY)
Dr
Ben Marsh
(RAL STFC)
Prof.
Heinz Graafsma
(DESY)
Igor Cheviakov
(DESY)
Dr
Luigi Stebel
(Elettra)
Dr
Manfred Zimmer
(DESY)
Matthias Bayer
(DESY)
Dr
Nicola Guerrini
(RAL STFC)
Dr
Peter Goettlicher
(DESY)
Dr
Przemyslaw Gasiorek
(RAL STFC)
Dr
Ralf Menk
(Elettra)
Dr
Rebecca Coath
(RAL STFC)
Dr
Renato Turchetta
(RAL STFC)
Sabine Lange
(DESY)
Dr
Simone Farina
(Elettra)
