Jennifer Poehlsen
A5066385958- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Cosmology and Gravitation Theories
- Dark Matter and Cosmic Phenomena
- Computational Physics and Python Applications
- Medical Imaging Techniques and Applications
- Neutrino Physics Research
- Advanced X-ray Imaging Techniques
- Astrophysics and Cosmic Phenomena
- CCD and CMOS Imaging Sensors
- Advancements in Photolithography Techniques
- Enzyme Structure and Function
- Black Holes and Theoretical Physics
- Gamma-ray bursts and supernovae
- Radiation Detection and Scintillator Technologies
- Electron and X-Ray Spectroscopy Techniques
- Advanced X-ray and CT Imaging
- Adrenal and Paraganglionic Tumors
- Photosynthetic Processes and Mechanisms
- Radioactivity and Radon Measurements
- Distributed and Parallel Computing Systems
- Particle Accelerators and Free-Electron Lasers
- Crystallization and Solubility Studies
Universität Hamburg
2014-2021
Deutsches Elektronen-Synchrotron DESY
2016-2021
Center for Free-Electron Laser Science
2015-2020
Institute of High Energy Physics
2015-2017
Abstract The new European X-ray Free-Electron Laser is the first free-electron laser capable of delivering pulses with a megahertz inter-pulse spacing, more than four orders magnitude higher previously possible. However, to date, it has been unclear whether would indeed be possible measure high-quality diffraction data at pulse repetition rates. Here, we show that structures can obtained using currently available operating conditions XFEL. We present two complete sets, one from well-known...
The Adaptive Gain Integrating Pixel Detector (AGIPD) is an X-ray imager, custom designed for the European Free-Electron Laser (XFEL). It a fast, low-noise integrating detector, with adaptive gain amplifier per pixel. This has equivalent noise of less than 1 keV when detecting single photons and, switched into another state, dynamic range more 10 4 12 keV. In burst mode system able to store 352 images while running at up 6.5 MHz, which compatible 4.5 MHz frame rate XFEL. AGIPD was installed...
Serial femtosecond crystallography (SFX) with X-ray free electron lasers (XFELs) allows structure determination of membrane proteins and time-resolved crystallography. Common liquid sample delivery continuously jets the protein crystal suspension into path XFEL, wasting a vast amount due to pulsed nature all current XFEL sources. The European (EuXFEL) delivers (fs) pulses in trains spaced 100 ms apart whereas within are currently separated by 889 ns. Therefore, continuous via fast wastes...
AGIPD (adaptive gain integrating pixel detector) is a detector system developed for the European XFEL (XFEL.EU), which currently being constructed in Hamburg, Germany. The XFEL.EU will operate with bunch trains at repetition rate of 10 Hz. Each train consists 2700 bunches temporal separation 220 ns corresponding to 4.5 MHz. photon pulse has duration < 100 fs (rms) and contains up 1012 photons an energy range between 0.25 25 keV . In order cope large dynamic range, first stage each...
AGIPD is a hybrid pixel detector developed by DESY, PSI, and the Universities of Bonn Hamburg. It targeted for use at European XFEL, source with unique properties: train up to 2700 pulses repeated 10 Hz rate. The inside are ≤100fs long separated 220 ns, containing 10<sup>12</sup> photons 12.4 keV each. readout ASICs 64 x pixels each have cope these Single photon sensitivity dynamic range ⪆10<sup>4</sup> photons/pixel in same image as well storage many possible images pulse delayed...
The Adaptive Gain Integrating Pixel Detector (AGIPD) is a hybrid pixel X-ray detector for the European-XFEL. One of detector's important parts radiation tolerant front end ASIC fulfilling European-XFEL requirements: high dynamic range—from sensitivity to single 12.5keV-photons up 104 photons. It implemented using gain switching technique with three possible gains charge sensitive preamplifier. Each can store 352 images in memory operated random-access mode at ⩾4.5 MHz frame rate. An external...
The European XFEL is an extremely brilliant Free Electron Laser Source with a very demanding pulse structure: trains of 2700 X-Ray pulses are repeated at 10 Hz. inside the train spaced by 220 ns and each one contains up to <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">12</sup> photons 12.4 keV, while being ≤ 100 fs in length. AGIPD (Adaptive Gain Integrating Pixel Detector) hybrid 1M-pixel detector developed DESY, PSI, Universities Bonn...
The Adaptive Gain Integrating Pixel Detector (AGIPD) is an x-ray imager, custom designed for the European Free-Electron Laser (XFEL). It a fast, low noise integrating detector, with adaptive gain amplifier per pixel. This has equivalent of less than 1 keV when detecting single photons and, switched into another state, dynamic range more 10$^4$ 12 keV. In burst mode system able to store 352 images while running at up 6.5 MHz, which compatible 4.5 MHz frame rate XFEL. AGIPD was installed and...