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Silicon drift detectors (SDDs) revolutionized spectroscopy in fields as diverse as geology and dentistry. For a subset of experiments at ultrafast, X-ray free-electron lasers (FELs), SDDs can make substantial contributions. Often the unknown spectrum is interesting, carrying science data, or the background measurement is useful to identify unexpected signals. Many measurements involve only several...
Silicon drift detectors (SDDs) are a well-established technology that has revolutionized spectroscopy in fields as diverse as geology and dentistry. At a first glance it would seem that detectors with such a slow response would not be suitable for the new ultra-fast x-ray free-electron lasers (FEL) coming online. However, for a subset of experiments at FELs, SDDs can make substantial contributions...
A new hybrid pixel array detector, the ePix100, has been developed at SLAC for tender and hard x-ray experiments at the Linac Coherent Light Source (LCLS). It is intended for low noise and good spatial resolution applications, particularly X-ray Photon Correlation Spectroscopy (XPCS) and in combination with wavelength dispersive spectrometers. The detector has 50 µm pixel size and less than 100 e-...
A series of measurements to validate the performance of the CSPAD were performed at the Stanford Synchrotron Radiation Lightsource (SSRL) and at the Linac Coherent Light Source (LCLS). These were important steps to complete the development of the detector, characterize its behavior under typical experimental conditions, and implement calibration procedures. In this paper we report differences observed...
The Cornell-SLAC Pixel Array Detector (CSPAD) is the workhorse for LCLS hard x-rays experiments. After deploying three 2.3Mpixel and many 140kpixel cameras, SLAC detector group has focused in improving the detector performances and optimizing its use in experiments. This was achieved first by improving thermo-mechanical assembly, PCB level electronics and firmware. The next step consisted in upgrading...
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