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Potential contribution of Tübingen to the WFI onboard ATHENA

Potential contribution of Tübingen to the WFI onboard ATHENA. Andrea Santangelo, Chris Tenzer, E. Perinati. Manami Sasaki, Thomas Schanz, D. Klochkov , . Focus of the HEA Abteilung.

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Potential contribution of Tübingen to the WFI onboard ATHENA

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  1. Institute of Astronomy and Astrophysics Potential contributionof Tübingen tothe WFI onboard ATHENA Andrea Santangelo, Chris Tenzer, E. Perinati Manami Sasaki, Thomas Schanz, D. Klochkov, ...

  2. Focus ofthe HEA Abteilung High EnergyAstrophysics: Exploration oftheUniverse in theenergyrangefrom X-raysto Ultra High Energies. Space Based X-Gamma Ray Astrophysics Experimental Hardware, Mission Development, Simulations Analysis & Interpretation Neutron Stars, Black Holes, SNR, ISM...

  3. Focus and Heritage

  4. High energyastrophysicsheritage XMM-Newton: sequencer Balloon & Rocket Experiments From the 70S INTEGRAL: HEPI Board for digital processing

  5. ATHENA X-ray astronomy in Tübingen IXO eRosita LOFT

  6. LOFT Back End Electronics LOFT LAD module and panel BEE LOFT WFM BEE Up to the level of prototypes.

  7. Testingofdetectorprototypes XEUS IXODePFET Lab. eROSITAFramestore CCD Lab. Sequencer to drive CCD operation and readout Test of electronics component, Performance measurements: energy resolution split event distribution noise and offset stability as a function of temperature

  8. Simbol-X/IXO stackeddetector Developed and running: sequencer and event pre-processor with pattern recognition

  9. Focus ofthe HEA Abteilung (2) GroundBased TeV Astrophysics Analysis & Interpretation: Binaries, PWNe, MW Experimental: Mirrortestingandcontrol, Alignement System, Electronics, Tools for Data Analysis Space-BasedUHE Astrophysics Experimental: Onboardelectronics, Mission Developments, Simulations Analysis & Interpretation, (E2E simulations)

  10. TeV Astrophyics in Tübingen Cherenkov Telescope Array (CTA) FlashCam (Fully digital camera), and mirror control system H.E.S.S. I & II Mechanics and electronics for mirror control and alignement

  11. JEM-EUSO Cluster Control Board (Trigger) Development of a Data Preprocessing Board for JEM-EUSO (UHECRs) hosting a Virtex-4 FPGA to allow: - position finding with a fitting algorithm - trigger algorithms - SpaceWire Communication - usage of internal and external memory

  12. Proposed Activities on the WFI

  13. I Digital Electronics Development of the Back-end electronics, to operate and read-out the WFI sensor, including an interface to the S/C via SpaceWire. Including AIVT

  14. Sequencer/Event-Preprocessor • FPGA-based back-end electronics: • sequencerto drive the operation of the sensor in the different observation modes, to control the readout and digitization • event-preprocessor to perform the necessary corrections on the raw data.

  15. Frame Builder FPGA-based Frame-Builder: it interfaces all the Cluster FPGAs and the S/C. Event patterns will be compared to a set of valid events and invalid events can be filtered. Valid event packets will be compressed and formatted for downlink.

  16. II Background studies A goodamountofworkalreadydone in theframeworkoftheeROSITAand IXO studies: (eROSITA) Perinati et al.,Exp. Astr.,2012 Tenzer et al., Proc. of SPIE, 2010 (IXO/WFI) Hauf et al.,Proc. of SPIE, 2012 (IXO/XMS) Lotti et al., NIMA,2012 Perinati et al., JLTP,2012 • Modelizationof the L-2 radiation environment: • Cosmic ray fluxes (Protons, electrons and alpha particles…) • Solar and anomalous components (mainly protons from several keV to 20 MeV, no geomagnetic shield, reflection from the SPO) • GEANT4-based simulations for non X-ray background  to optimize the design • A key and new activity: validation with “real background data” from eROSITA(after 2015) and SREMs Particle Monitors

  17. III Soft Protons studies • Soft protons focused onto the focal plane by the SPO might be an issue: • Additional Particle Background (WFI/X-IFU) • Radiation damage? (WFI) • To estimate the expected rate of soft protons on the ATHENAfocal plane: • tests of soft proton reflectivity from a sample of SPO at the Tübingen Van de Graaff accelerator • implementation of a proton-tracing simulator for SPO • Assessment of the Ionizing and Non ionizing energy loss (NIEL) at the Tübingen Van der Graaff accelerator (?)

  18. Facility for Soft proton irradiation and reflectivity measurements 3MV single ended Van-der-Graaf accelerator Iontypes: p, H+2, d, D+2, 4He+, 12C+, 13C+, 16 A few 10s of keV – 2 MeV III Soft protons (2) On the right: Set-up for eRosita studies current experiments: detector prototypes for LOFT & reflection of low-energy protons on X-ray mirrors

  19. IV Hyper-Velocity Impacts (WFI and X-IFU) S. Diebold et al., A setup for soft proton irradiation of X-ray detectors for future astronomical space missions, NIMA,721,65,2013 S. Diebold et al., A facility for soft proton irradiation and instrument testing for future space missions, TNS(accepted) E. Perinati et al., Accelerator experiments with soft protons and hyper-velocity dust particles: application to ongoing projects of future x-ray missions, Proc.  of SPIE, 8443,8443-O0,2012 • Dust environment at L2: • Debris free • Issue: interplanetary micrometeoroids (e. g. both pn and MOS cameras on-board XMM were damaged by impacts) • Rescaling the collecting area: a few impacts per year in ATHENA might be expected! • Impact Risk mitigation: • the design of the optical/thermal filters may be optimized for impact protection: 1) simulations in ESABASE2; 2) HVI tests on filters and detectors at IRS/MPIK and TUM accelerators • HVI tests on SPO?

  20. HVI tests Facility In Heidelberg up to km/s and microns (Iron, silicates, Olivines) Facility In München up to 10 km/s and 10-100 microns (Silicates) Set-up for the eRosita filters for HVI tests

  21. Summary • Hardware contributions  Digital Electronics • Development of Cluster FPGA &ADC board(s) • Development of Frame-Builder hardware • Not excluded contribution to OBDH or Instrument control Unit • Simulations: • Instrument background estimates • Optimization of detector housing and shielding • Contribution to End-to-End Performance Simulator (with ECAP) • Other contributions: • Additional experimental activities (Proton irradiationand Hyper-Velocity Impacts studies) • Participation to Science Data Center activities • Participation to AIT and calibration activities

  22. Key people involved Scientists: Andrea Santangelo, Chris Tenzer, EmanuelePerinati, Manami Sasaki, DimitryKlochkov, GerdPühlhofer Engineers and Technicians: Thomas Schanz, ChristophKalkhul, +2 Technicians Electronics Lab. + 3 Technicians Mechanical Workshop Several PHD and Diploma students And of course with contribution from DLR!

  23. Thankyou. Contact: Andrea Santangelo Abteilung Hochenergieastrophysik Sand 1, 72076 Tübingen · Germany Phone: +49 7071 29-76128 Andrea.Santangelo@uni-tuebingen.de

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