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Potential Italian contributions to WFI. L. Piro, IAPS-Rome on behalf of the Athena Italian team. The rationale. T he primary Italian contribution to mission elements is XIFU O ther smaller contributions include participation to mirror and Ground Segment activities.

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potential italian contributions to wfi

PotentialItaliancontributions toWFI

L. Piro, IAPS-Rome

on behalf of the AthenaItalian team

the rationale
The rationale
  • The primary Italian contribution to mission elements is XIFU
  • Other smaller contributions include participation to mirror and Ground Segment activities.
  • This approach has been consistently presented to ASI and properly ackwnoledged by the agency
  • Credible approach for WFI contributions:limited and harmonized with present commitments on XIFU.
  • For WFI we propose activities that are carried out by the Italian consortium on XIFU and that can be – with a reasonable delta effort – developed for WFI
proposed items maximizing synergy wfi xifu
Proposeditemsmaximizingsynergy WFI-XIFU
  • On board instrument s/w for the ICU
  • Instrument simulations
  • Filters
  • (Part of) Digital electronics
  • Scientificsupport(instrumenttrade-off, calibrations)
proposed items maximizing synergy wfi xifu1
Proposeditemsmaximizingsynergy WFI-XIFU
  • On board instrument s/w for the ICU
  • Instrument simulations
  • Filters
  • (Part of) Digital electronics
  • Scientificsupport(instrumenttrade-off, calibrations)
icu in xifu
ICU in XIFU
  • INAF (IASF-Bo, Oss.To, IAPS) responsible for h/w and s/w)
icu functions
ICU Functions
  • Set-up and control instrument subsystems
  • Interface to S/C for H/K and TC
  • Science data packaging and transfer to S/C ( I/F TBC)
  • Instrument health check
  • Failure mode management
  • Time signal distribution (TBC)
  • Filter Wheel control (I/F, motor driver and X-ray source TBC/TBD)
inaf team heritage on icu
INAF team heritage on ICU
  • ISO Long WavelegthSpectrometer DPU and on boards/w (IAPS, Laben)
  • Herschel Instruments DPUsand instrument control software (IAPS,CGS)
    • A single provider for all the three scientific instruments onboard  one single interface with the S/C CDMU provider
      • Euclid VIS CDPU and instrument control and data s/w(IAPS) and NISP ICU on boards/w (IASF-Bo, Oss.To, IAPS)
  • A single provider (INAF) for the twoscientificinstrumentsonboard one single interface with the S/C CDMU provider
  • Expertize with the mainstandards ICU items:
    • for SW design and development(UML, MISRA)
    • mainspacequalified processors ( DSP21020 (Herschel), LEON3FT (Euclid and SPICA), PowerPC 750FX (Euclid))
    • SpaceWirenetworks (Euclid and SPICA)
    • ESA ECSS standards and procedures
    • CCSDS standard losslesscompressionalgorithmsimplementation and optimisation (Euclid)
benefit of the synergical approach
Benefit of the synergicalapproach

Possibility to implement onboard Athena+ the same “effective and successful” configuration adopted for Herschel and Euclid

  • one single On Board Software provider (INAF) for both scientific payload instruments
  • one single interface between ESA, Prime and Instruments Consortia for S/C data interface matters (protocol definition, SW interface implementation and testing)
  • A centralised expertise for the on board science data processing
  • Best commonalitiesexploitation
      • design
      • procurement
      • testing
proposed items maximizing synergy wfi xifu2
Proposeditemsmaximizingsynergy WFI-XIFU
  • On board instrument s/w for the ICU
  • Instrument simulations
  • Filters: development, procurement and calibration
  • (Part of) Digital electronics
  • Scientificsupport(instrumenttrade-off, calibrations)
filters in athena xifu
Filters in Athena- XIFU
  • INAF (Oss.Pa) & Univ. Pa: Development and Calibration of the X-IFU Aperture Cylinder and FPA Optical/IR blockingFilters

Presentbaseline 5 filters for a total of Aluminum2100 Å + Polyimide 2800 Å

Supportmeshon the twolargerdiameterfilters.

slide11

HERITAGE

  • ChandraHRC-I (USA)
    • Development and calibration of the HRC UV/Ionshields (93 mm x 93 mm)

HRC-I Aluminum 750 Å + Polyimide 5700 Å

  • Newton-XMM EPIC (Europe)
    • Development and calibration of the Thinand Medium filters (76 mm diam.)

Thin Aluminum 400 Å + Polyimide 1800 Å

MediumAluminum 800 Å + Polyimide 1800 Å

  • HINODE XRT (USA/Japan)
    • Calibration of the 9 focalplanefilters(50 mm diam.)

Thin Al/Mesh Aluminum 1600 Å + Mesh 82 %

Thin Al/Poly Aluminum 1600 Å + Polyimide 2500 Å

C/PolyCarbon 7000 Å + Polyimide 2500 Å

Ti/Poly Titanium 3000 Å + Polyimide 2500 Å

Thin Be Beryllium 9 μm

Med Be Beryllium 30 μm

Thick Be Beryllium 300 μm

Med Al Aluminum 12.5 μm

Thick Al Aluminum 25 μm

slide12

Examples of filtercharacterization

X-RayAstronomyCalibration and Testingfacility (INAF)

Barbera, M.,. et al.,Proc SPIE, 5488, 2004.

HINODE CalibrationProgram

proposed items maximizing synergy wfi xifu3
Proposeditemsmaximizingsynergy WFI-XIFU
  • On board instrument s/w for the ICU
  • Instrument simulations
  • Filters: development, procurement and calibration
  • (Part of) Digital electronics
  • Scientificsupport(instrumenttrade-off, calibrations)
simulations of xifu
Simulations of XIFU
  • INAF consortium (led by IAPS with IASF-Pa and Oss.Pa, with plans to include contributions from IASF-Bo and Oss. Roma) responsible for XIFU simulations. Need to fold various effects:
  • L2 environment: CR and solar protons (analysis of particle monitor from Herschel and Planck)
  • Various galactic and extragalactic X-ray components
  • effect of soft protons through mirrors (with optics ray tracing) driving assessment of particle diverter
  • GEANT simulation of detector and its environmentdriving instrument design
particles background in l2

Stationary

flux

Flares

Advanced Telescope for High Energy Astrophysics

Particles background in L2
  • Cosmic Rays
  • Solar protons
  • Both components depend on the solar cycle.
  • Analysis of Planck Particle Monitor Data undergoing
slide16

Improvement in Background reduction

  • Extensive simulations/design and TES AC detector and suppressionof secondary electrons

F(5”)=10-13 c.g.s

x20

x6

Fe Ka

σ(T) =3.3%

σ(Z) =15%

Cluster at the formation epoch (z=2)

F=10-15 erg/cm2/s,

A=0.2 arcmin2, kT=2.0 keV,

Abundance 0.3, area=1m2,f/l=12m

16

σ(T) =2.4%

σ(Z) =12%

benefit
Benefit
  • Beneficial in terms of optimization of resources if (some of) instrument simulations activities are carried out for the WFI as well.
  • E.g.: Avoid duplication of same items: various components of L2 environment, GEANT model of the spacecraft
  • Similar design solutions for further reduction of the residual particle background (shields, soft particle diverter,…)
proposed items maximizing synergy wfi xifu4
Proposeditemsmaximizingsynergy WFI-XIFU
  • On board instrument s/w for the ICU
  • Instrument simulations
  • Filters: development, procurement and calibration
  • (Part of) Digital electronics
  • Scientificsupport(instrumenttrade-off, calibrations)
science support
Science support
  • For XIFU: IAPS, IASF-Bo, Oss.Pa, Oss. Roma, UniRoma, with contributions by Oss. Trieste, Oss. Bo, Oss. Mi, IASF-Mi). For the WFI a team drawn from the above team.
  • Example: Hydrodynamical simulations of galaxies/groups/clusters/WHIM (X-IFU & WFI)
    • FLASH/grid-based
    • SPH cosmological simulations (ref. INAF/OaBO & Univ.)
proposed items maximizing synergy wfi xifu5
Proposeditemsmaximizingsynergy WFI-XIFU
  • On board instrument s/w for the ICU
  • Instrument simulations
  • Filters
  • (Part of) Digital electronics for pre-processing
  • Scientificsupport(instrumenttrade-off, calibrations)
slide21

Digital Electronics for XIFU TESCryoAC

  • INAF consortium in charge of the TESCryoAC detector
  • Digital box (IASF-Mi):
  • Digitalizationof analogsignals from detector
  • Preprocessingof data
heritage
Heritage
  • Solar Orbiter/METIS UV detector (Intensified APS)
  • Testing
  • Development of the real time digital processor for enabling photon counting detection (implemented in FPGA Actel RTAX 2000)

Design and development of the AntiCoincidencedetector, test and measurementelectronics of AGILE

  • Rad Hard Tests of ASICs @ Legnaro: SEU monitoring
  • Latch-up monitoring
additional activities
Additionalactivities
  • GSE/AIV/AIT (e.g. IASF-Bo,IAPS):
  • Currentlynotbaselined for XIFU (thus of lowerpriority) but with strong heritagefrom EPIC/XMM – PICSIT/INTEGRAL – Simbol-X and NHXM – AGILE, Herschel, …
proposed items maximizing synergy wfi xifu6
Proposeditemsmaximizingsynergy WFI-XIFU
  • On board instrument s/w for the ICU
  • Optical/UV blocking Filters
  • Instrument simulations
  • Scientificsupport (instrumenttrade-off, …)
  • (Part of) Digital electronics for pre-processor
slide25

X-RayTransmissionMeasurementsandModeling

HINODE CalibrationProgram

Barbera, M.,. et al.,Proc SPIE, 5488, 2004.

slide26

Advanced Telescope for High Energy Astrophysics

Analysis of Planck/SREM data

We analyzed the data from the Solar Radiation Environment Monitor onboard of Planck (SREM) in the period 2009-2013, since it is in the same orbit ATHENA+ will be placed.

* Data courtesy of Dr. Paul Buehler, Andrea Zacchei and Luis Mendes

** (left) each bin is 1 day averaged. The decrease is consistent with the solar cycle that is going toward the max.

***(right) each bin is 50 s.

26

Luigi Piro

ATHENA+ X-IFU Italian Consortium