The back-end electronics for the imaging x-ray polarimetry explorer telescope

Mattia Barbanera; Saverio Citraro; Carlo Magazzu; Alberto Manfreda; Massimo Minuti; Hikmat Nasimi; Carmelo Sgrò

doi:10.1117/12.2560982

13 December 2020 The back-end electronics for the imaging x-ray polarimetry explorer telescope

Mattia Barbanera, Saverio Citraro, Carlo Magazzu, Alberto Manfreda, Massimo Minuti, Hikmat Nasimi, Carmelo Sgrò

Proceedings Volume 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray; 114445X (2020) https://doi.org/10.1117/12.2560982
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

The Imaging X-Ray Polarimetry Explorer (IXPE) is the next NASA small explorer mission, due to be launched on May 2021. It will perform polarization measures of soft X-ray photons (∼ 2 − 8keV), together with imaging, spectroscopy, and timing. The core of the detector units is the Gas Pixel Detector (GPD) with dedicated back-end electronics (BEE). We designed the latter with a radiation-tolerant FPGA for data acquisition and processing, event sequencing, and on-line data compression. Two custom digital serial interfaces implement the communication of the units with a central on-board computer: Command and Control Interface and Science Data Interface. This BEE exploits the auto-trigger capability of the GPD and can process its output of 300 photons per second with 30% of system dead time. We designed comprehensive test-equipment to emulate the on-board computer. It is based on a commercial FPGA on a VME-board together with dedicated software for control and data collection

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Citation Download Citation

Mattia Barbanera, Saverio Citraro, Carlo Magazzu, Alberto Manfreda, Massimo Minuti, Hikmat Nasimi, and Carmelo Sgrò "The back-end electronics for the imaging x-ray polarimetry explorer telescope", Proc. SPIE 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, 114445X (13 December 2020); https://doi.org/10.1117/12.2560982

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