First functionality tests of a 64 × 64 pixel DSSC sensor module connected to the complete ladder readout
The European X-ray Free Electron Laser (XFEL.EU) will provide every 0.1 s a train of 2700 spatially coherent ultrashort X-ray pulses at 4.5 MHz repetition rate. The Small Quantum Systems (SQS) instrument and the Spectroscopy and Coherent Scattering instrument (SCS) operate with soft X-rays between 0...
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| Main Authors: | , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
7 March 2017
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| In: |
Journal of Instrumentation
Year: 2017, Volume: 12, Issue: 03, Pages: C03025 |
| ISSN: | 1748-0221 |
| DOI: | 10.1088/1748-0221/12/03/C03025 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1088/1748-0221/12/03/C03025 Verlag, Volltext: http://stacks.iop.org/1748-0221/12/i=03/a=C03025 
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| Author Notes: | M. Donato, K. Hansen, P. Kalavakuru, M. Kirchgessner, M. Kuster, M. Porro, C. Reckleben and M. Turcato |
| Summary: | The European X-ray Free Electron Laser (XFEL.EU) will provide every 0.1 s a train of 2700 spatially coherent ultrashort X-ray pulses at 4.5 MHz repetition rate. The Small Quantum Systems (SQS) instrument and the Spectroscopy and Coherent Scattering instrument (SCS) operate with soft X-rays between 0.5 keV-6 keV. The DEPFET Sensor with Signal Compression (DSSC) detector is being developed to meet the requirements set by these two XFEL.EU instruments. The DSSC imager is a 1 mega-pixel camera able to store up to 800 single-pulse images per train. The so-called ladder is the basic unit of the DSSC detector. It is the single unit out of sixteen identical-units composing the DSSC-megapixel camera, containing all representative electronic components of the full-size system and allows testing the full electronic chain. Each DSSC ladder has a focal plane sensor with 128× 512 pixels. The read-out ASIC provides full-parallel readout of the sensor pixels. Every read-out channel contains an amplifier and an analog filter, an up-to 9 bit ADC and the digital memory. The ASIC amplifier have a double front-end to allow one to use either DEPFET sensors or Mini-SDD sensors. In the first case, the signal compression is a characteristic intrinsic of the sensor; in the second case, the compression is implemented at the first amplification stage. The goal of signal compression is to meet the requirement of single-photon detection capability and wide dynamic range. We present the first results of measurements obtained using a 64× 64 pixel DEPFET sensor attached to the full final electronic and data-acquisition chain. |
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| Item Description: | Gesehen am 01.08.2018 |
| Physical Description: | Online Resource |
| ISSN: | 1748-0221 |
| DOI: | 10.1088/1748-0221/12/03/C03025 |