AGILE - Stato attività

15 feb. 2006M. Tavani

AGILE: status n. 11

• AGILE, is a Scientific Missionsupported by ASI (Phase B: June 1999) with scientific and programmaticparticipation by INAF and INFN

• Total satellite mass ~ 350 kg (Small Explorer - SMEX - class)

• Scientific Instrument mass: 120 kg (heretic for a gamma-ray detector)

• A highly innovative Instrument !

Current Mission Schedule:• Payload AIV: June-October 2005• Instrument gamma-ray calibration at LNF-BTF:

November 2005• P/L finalization after satellite-system tests:

end of Jan. 2006

• Satellite pre-integration tests: Dec. 2005• Satellite integration, test and qualification at

IABG (Munich): January-March 2006• AGILE launch campaign: March-April 2006• AGILE in-flight commissioning:

May-June 2006• Start of AGILE scientific operations: July 2006

EGRET AGILE

AGILE Satellite AGILE Satellite Flight Model Flight Model

(CGS, (CGS, TortonaTortona, mid, mid--December 2005)December 2005)

AGILE Satellite AGILE Satellite Flight Model Flight Model

(CGS, (CGS, TortonaTortona, mid, mid--December 2005)December 2005)

Agile: FIRST and unique combinationof a gamma-ray imager and an X-ray imager

(30 MeV-30 GeV) (15-45 keV)

AGILE Engineering Model

Detection inefficiency of the12 Lateral_Side AC detectors,measured at 23.5 cm from the top edges along the main axisof symmetry.

The AGILE Anticoincidence System developed by INAF-IASF Milano (F. Perotti) during the vibration test campaign (January 2005).

SUPERSUPER--AGILEAGILE

11

B) SuperAgile - Sviluppo Unità PFM

SA

DETECTOR

TRAY

B) SuperAgile - Sviluppo Unità PFM

COLLIMATORE-MASCHERA

Collimatore Maschera

Assembly

• Detector 410 um Silicon microstrips 1D position sensitive, 121 um pitch • Energy range 15 – 45 keV• Geometric Area 1444 cm2• Effective Area ~300 cm2 (on axis, 13 keV)• Energy Resolution 7-8 keV• Angular Resolution 6 arcmin• Source location Accuracy 1.5 arcmin for bright sources• FOV 2x(107x68) degrees FWZR• Timing Accuracy ~5us• Sensitivity ~12 mCrab (50ks, on axis) Co 57 source

Super-AGILE first light (Cd 109 source at 176 cm from detection plane)

Super-AGILE developed by INAF-IASF Rome(E. Costa, M. Feroci) before beingdelivered to LABEN (June 28, 2005).

Super-AGILE imaging performanceobtained with Detector Unit n. 3 aftercoded-mask deconvolution of X-raypre-calibration data(August 30, 2005).

Super-AGILE data: Am241 spectral data(testing the operative range 15-45 keV)

Super-AGILE data: Cd109 spectral data(testing the operative range 15-45 keV)

Super-AGILE flux threshold

SILICON TRACKERSILICON TRACKER

10 planes with* 0.07 X0

* 40 micron resolution

Total: 0.8 X0

AGILE Tracker trays(INFN-Ts, G. Barbiellini, M. Prest et al.)

The AGILE Silicon Tracker developedby INFN Trieste (G. Barbiellini, M. Prest)in the MIPOT laboratories before beingdelivered to LABEN on June 30, 2005.

One of the hundreds of cosmic raymuons interacting every second withthe AGILE Tracker and Mini-Calorimeter(August 25, 2005).

Tungsten

absorbers

Cosmic-ray (muon) detected by the AGILE Tracker PFM

“first” gamma-ray detected by the AGILE Tracker PFM

AGILE Tracker data: total (readout and floating) strip distribution

MINIMINI--CALORIMETERCALORIMETER

2 layers

30 CsI bars

300 keV-100 MeV

Aeff~ 400 cm²(@1-10 MeV)

Mini-Calorimeter AIV testingperformance

• 60 readout channels, 30 CsI bars• < 400 keV threshold (burst mode)• < 500 keV threshold (GRID mode)• Optimal response to 1-10 MeV photon

interactions• GRB search optimized

The AGILE Mini-Calorimeterdeveloped by LABEN with sciencesupervision of INAF-IASF Bologna(G. Di Cocco, C. Labanti) duringits final tests (June 15, 2005).

A Track of a horizontally incidentmuon detected by the Z-layer of theAGILE Mini-Calorimeter.

RunRun idid 22452245

Time < 300 sec, beam OFF Events with E > 2 MeV

Risultati

E beam 450 MeV beam on AGILE at (13, 523.01), θ = 30° φ=135° MCAL Burst mode (30.09)

Bar 4plane x

Bar 2plane z

AGILE MCAL “AGILE MCAL “imagingimaging” of ” of anan MeVMeV gammagamma--rayray beambeam((BremsBrems photonsphotons at LNFat LNF--BTF, AGILE BTF, AGILE calibrcalibr. . runrun n. 2245)n. 2245)

300 < Time < 600 sec, beam ON, Events with E > 2 MeVE beam =450 MeV beam hit coordinates (13, 523.01), θ = 30° φ=135° MCAL Burst mode (30.09)

Bar 4plane X

Bar 3plane Z

AGILE LNLAGILE LNL--BTF BTF runrun no.no. 22452245E beam 450 MeV beam on AGILE at (13, 523.01), θ = 30° φ=135° MCAL Burst mode (30.09)

MCAL preliminary spectra (on-off beam)

DATA HANDLING HARDWARE SOFTWARE

GPS

SS AC

ST

MCAL

SA

GRID: TRIGGER 1 & 1.5

READOUT PRE-PROCESSING

BURST: MCAL BURST DAQ

SA BURST IMAGING

SA: PHOTON-BY-PHOTON

GRID: CLUSTER ID

MCAL ZERO-SUPPRESSION

TRIGGER 2

BURST: RICERCA DI BURST DECONVOLUZIONE

IMMAGINI SA

TELEMETRIA

BUS

FAST LINK

OBT (rispetto all`UTC): ∆t < 2µs Marcatura temporale – GRID: ∆t < 2µs Marcatura temporale – SA, MCAL: ∆t < 5µs Ricostruzione d`assetto: ~ 1arcmin.

Silicon Tracker: 36844 canali Super-AGILE: 6144 canali Mini-Calorimetro: 60 canali Anticoincidenza: 16 canali

ELABORAZIONE SINCRONA

TRIGGER 1 + TRIGGER 1.5 < 25µs TEMPO MORTO TOTALE < 200µs

ELABORAZIONE ASINCRONA

DURATA TOTALE ~ 3-4ms NON INFLUENZA IL TEMPO MORTO

DATA HANDLING

HARDWARE SOFTWARE

AC

MCAL GRID

ST

MAPPA TAA1

AC TOP AC LAT

READOUT:

TUTTE LE 32 BARRE

SPARSE READOUT:

SOLO I TAA1 SCATTATI

TRIGGER LIVELLO 1:

VERIFICA

SU SEGNALI DI AC E SUL

NUMERO DI TAA1

SCATTATI.

TRIGGER LIVELLO 1.5:

ANALISI TOPOLOGIA

TAA1 SCATTATI PRE-ELABORAZIONEDATI ST:

SOTTRAZIONE PIEDISTALLI

SOTTRAZIONE NOISE COERENTE

ZERO-SUPPRESSION

MCAL ZERO-

SUPPRESSION

CLUSTER ID

TRIGGER LIVELLO 2

TELEMETRIA

DATA HANDLING

HARDWARE SOFTWARE

ALGORITMI PER LA

RICERCA DI BURST

BUS

FAST LINK

TELEMETRIADECONVOLUZIONE

IMMAGINI SA E

DETERMINAZIONECOORDINATE

DI BURST

MCAL BURST

BUFFER CICLICO

SA IMAGING

ACCUMULO IMMAGINI

RATEMETERS RATEMETER BASE

PER LA RICERCA DI BURST

MCAL BURST

SA

Ricerca su 20 canali (SA + MCAL) divisi per energia e per regione spaziale Tempi scala di ricerca da < 1ms a 100s Determinazione coordinate di Burst (errore 2-10 arcmin.) entro 16s

• Optimal gamma-ray imaging PSF (30 MeV-30 GeV), large FOV (2.5 sr)

• Ultra-compact, ultra-light coded maskhard X-ray imager (15-45 keV)

• Microsecond time-tagging (GPS) and wide GRB search dynamic range(15 - 45 keV, 0.4-10 MeV)

• The most compact instrument ever builtfor high-energy astrophysics above 30 MeV, combining 3 different detectors withno interference, 27 FPGA’s.

EGRET/GRO gamma-ray sky map, E > 100 MeV

AGILE science topics

• Active Galactic Nuclei • Gamma-Ray Bursts• Pulsars• Unidentified TeV sources• SNRs and origin of cosmic rays• Diffuse gamma-ray background• Unidentified gamma-ray sources• Microquasars• Galactic accreting Neutron Stars and

Black Holes • Fundamental Physics: Quantum Gravity

Gamma-ray Galactic Sources (>100 MeV)

Geminga

Vela pulsar

Galactic Center

Orion Cloud

2CG 135+1 (LSI +61o303 ?)

γ-Cygni SNR (?)

3EG J1837-0423 (unidentified transient)

Crab (pulsar & SNR)

SNR RX J1713.7-3946 (?)

AGILE-GRID angular resolution

GRID Effective Area

20-100 MeV

2-week

AGILE Scientific Calibration

• AGILE gamma-ray calibration: Laboratori Nazionali Frascati, November 2005

• BTF facility• Super-AGILE and MCAL final calibration:

February 2006.

INFN-LNF-BTF Photon-Tagged SourceAGILE GRID Photon Calibration

AGILEPayload

Spectrometer

Silicon tagging target

Silicon detectors

• photon tagging system (PTS)• spectrometer PTS calibration • final equipment test (Oct.)• AGILE calibration, 2-3 weeks of data collection

BTF-AGILE Schedule

The AGILE Gamma Ray Imaging Detector calibration at BTF is aimed at obtaining data for all relevant geometries and background conditions. BTF can provide data in the energy range (30-700 MeV)

• Arrival in BTF on Wednesday, Nov. 2, 2005 (4.30 pm)

• 48 hours later….

FIRST GAMMA-RAY PHOTON IN BTF DETECTED BY AGILE !

AGILE first photon at LNF

37 MeV photon at LNF

124 MeV photon at LNF

211 MeV photon at LNF

On-axis gamma-ray source detected at BTF

Gamma-ray reconstruction by Kalman filtering

Gamma-ray event run diagnostic

AGILEAGILE--GRIDGRIDsource source

reconstructed reconstructed by the KF by the KF

(background (background subtracted)subtracted)(in LNF(in LNF--BTF, BTF, Nov. 2005)Nov. 2005)

Alerts for GRB and other transients:AGILE Fast Link (ORBCOMM)

GRID

GRID.partial SA

GRID, SA

diameter: 40°

diameter: 80°

diameter: 120°

AGILE data flow (at ASDC)

Data pre-processing

Level-1 data

Level-2 data

GRID QLA Super-A QLAQLA results

available to thecommunity

GRID Standard Analysis

Super-A StandardAnalysis

Standard X-ray/gamma-rayimaging/spectral/timing data

Super-A standard monitoring

results available to thecommunity

GOP

Counts map – gamma-ray simulated data, multiple pointings

Counts map – gamma-ray real calibration data

ximage – Multiple pointing processing

AGILE Diffuse gamma-ray BKG model (II Galactic Quadrant)

AGILE’s simulated diffuse emission map

• Diffuse model is– convolved with point

spread function– summed over energy

weighted by spectrum– binned according to

projection used by counts and exposure maps

2*log(likelihood with source / likelihood without sources) -> Test Statistic = source significance^2

Source coefficient = counts -> / exposure = flux

AGILE’s Likelihood Data Processing

AGILE’s simulated point source location

Comparison with EGRET

AGILE Science Program

• AGILE Science Management Plan• Pointing Program• AGILE Guest Observer Program (Cycle-1)• Multi-λ Program• AGILE Science Workshops

Scientific Team web site:http://agile.rm.iasf.cnr.it