3-8 September 2017
The Open University, Milton Keynes, UK.
Europe/London timezone

Mitigation Strategies against Radiation-Induced Background for the Athena Wide Field Imager (WFI)

7 Sep 2017, 12:40
1h 50m
Hub Theatre (OU) ()

Hub Theatre (OU)

The Open University, Walton Hall, Milton Keynes, MK7 6AA


Chris Davis (The Open University)


The Advanced Telescope for High ENergy Astrophysics (ATHENA) mission is a major upcoming ESA space-based X-ray observatory due to be launched in 2028, aiming to map the early universe and observe distant black holes. Instrument background from primary solar particles, cosmic rays and the secondaries produced in the shielding are expected to constitute a large fraction of the total noise in images and spectra from the Wide Field Imager (WFI) instrument on ATHENA. Designing an effective system to reduce the background radiation impacting the WFI will be crucial for maximising the instrument’s sensitivity. Due to the variety of different background sources, multiple shielding methods may be required to achieve maximum sensitivity in the WFI and in future space-based x-ray experiments. Here we discuss the latest results and strategies for effective instrument background mitigation for the Athena WFI.

Primary authors

Chris Davis (The Open University) Prof. Andrew Holland (The Open University) Dr Jonathan Keelan (The Open University) Mr James O'Farrell (The Open University) Dr Matthew Soman (The Open University) Dr Mark Leese (The Open University) Dr David Hall (The Open University)

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