Development of an X-ray pixel detector with multi-port charge-coupled device for X-ray free-electron laser experiments

Abstract

This paper presents development of an X-ray pixel detector with a multi-port charge-coupled device (MPCCD) for X-ray Free-Electron laser experiments. The fabrication process of the CCD was selected based on the X-ray radiation hardness against the estimated annual dose of 1.6 × 10(14) photon/mm(2). The sensor device was optimized by maximizing the full well capacity as high as 5 Me- within 50 μm square pixels while keeping the single photon detection capability for X-ray photons higher than 6 keV and a readout speed of 60 frames/s. The system development also included a detector system for the MPCCD sensor. This paper summarizes the performance, calibration methods, and operation status.

Macromolecular structures probed by combining single-shot free-electron laser diffraction with synchrotron coherent X-ray imaging

“…RNAi microsponges randomly mounted on the membrane were exposed to XFEL pulses by scanning the focused X-ray beams across the membrane window. The resulting diffraction patterns were recorded on a multi-port CCD detector 46 . The multi-port CCD is assembled with eight sensors to give a 2,048 Â 2,048 array with 50 Â 50 mm 2 size pixels with a 3 Â 3-mm 2 central aperture passing the direct beam.…”

Fluid sample injectors for x-ray free electron laser at SACLA

“…[43]. Figure 1 shows a standard setup of DAPHNIS, which consists of a sample chamber, microscopes for sample monitoring, and a multi-port charge-coupled-device (MPCCD) detector with eight sensor modules [44] . The chamber is filled with He gas, a partial pressure of which is kept higher than 0.9 atm during measurement.…”

Data processing pipeline for serial femtosecond crystallography at SACLA

“…1). Raw data from eight multi-port charge coupled device (MPCCD) sensor modules (Kameshima et al, 2014) are captured by frame grabbers and transferred to data handling servers. These servers temporarily buffer images and write all of them to the cache storage.…”

“…The sensor-specific gain is measured by the detector team [see the Calibration section in the paper by Kameshima et al (2014)] and is available from the SACLA API. This normalization makes the spot finding parameters less sensitive to the photon energy.…”