The SST precursors of the CTA observatory: simula.ons for the ASTRI/CTA mini- array

Transcription

1 ASTRI general mee.ng Universidade de São Paulo Ins.tuto de Astronomia, Geofisica e Ciencias Atmosferica The SST precursors of the CTA observatory: simula.ons for the ASTRI/CTA mini- array A. Stamerra, C. Bigongiari, F. Di Pierro, P. Vallania INAF Osservatorio Astrofisico di Torino Bologna, ASTRI general mee.ng

2 Outline Simula,on and analysis framework Simula,ng the telescope and the detector Integra,on with ASTRI data pipeline Integra,on with CTA Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 2/30

3 CORSIKA EAS simula,on Simula,on and analysis framework γ and bkg (p, He, ) Zenith angles Sites Sim_telarray Customized to ASTRI telescope/op.cal simula.on detector/electronics simula.on op,cs SiPM Electronics trigger Telescope parameters See ASTRI- MC- OATO ASTRI- MC- OATO simulated data readhess evndisp Mars/chimp data reduc.on calibra.on, cleaning data reconstruc.on image analysis g- h cuts cleaning levels calibra,on cuts and γ/h op,miza,on MC analyzed data Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 3/30

4 CORSIKA EAS simula,on γ and bkg (p, He, ) Zenith angles Sites Goals of the simula,on Sim_telarray Customized to ASTRI telescope/op.cal simula.on detector/electronics simula.on op,cs SiPM Electronics trigger Telescope parameters simulated data readhess evndisp Mars/chimp data reduc.on calibra.on, cleaning data reconstruc.on image analysis g- h cuts MC analyzed data cleaning levels calibra,on cuts and γ/h op,miza,on IRF tables Ang res, E res sensi.vi.es Science Layout op.miza.on Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 4/30

5 CORSIKA EAS simula,on γ and bkg (p, He, ) Zenith angles Sites Goals of the simula,on Sim_telarray Customized to ASTRI telescope/op.cal simula.on detector/electronics simula.on op,cs SiPM Electronics trigger Telescope parameters simulated data DATA pipeline DL0 (raw, ADC) DL1 (calibrated, pe) readhess evndisp Mars/chimp data reduc.on calibra.on, cleaning data reconstruc.on image analysis g- h cuts MC analyzed data cleaning levels calibra,on cuts and γ/h op,miza,on IRF tables Ang res, E res sensi.vi.es Science Layout op.miza.on Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 5/30

6 CORSIKA EAS simula,on γ and bkg (p, He, ) Zenith angles Sites Goals of the simula,on Sim_telarray Customized to ASTRI telescope/op.cal simula.on detector/electronics simula.on op,cs SiPM Electronics trigger Telescope parameters MC VALIDATION simulated data DATA pipeline DL0 (raw, ADC) DL1 (calibrated, pe) Real data readhess evndisp Mars/chimp data reduc.on calibra.on, cleaning data reconstruc.on image analysis g- h cuts MC analyzed data cleaning levels calibra,on cuts and γ/h op,miza,on IRF tables Ang res, E res sensi.vi.es Science Layout op.miza.on Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 6/30

7 Mini- array performance Mini- array from PROD2 See notes: ASTRI- MC ; ASTRI- MC ; ASTRI- MC and Federico s talk later Room for improvements: conserva,ve analysis not yet fully op,mized Sub arrays extracted from PROD2 Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 7/30

8 Mini- array performance Sensi,vity depends on op,miza,on, e.g. analysis cuts SST analysis not yet fully op,mized Sensi.vity SMART- 5 mini- array hard- cuts loose- cuts Credits: R. Moderski LogE (TeV) Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 8/30

9 Mini- array performance Sensi,vity depends on different codes for reconstruc,on (IFAE/evndisp/readhess) à different cleaning, γ/h separa,on 5- telescope arrays with different flavours: sites analysis codes signal extrac,on Cleaning calibra,on γ/h Telescope types 2B- L++ MPI HESS MPI (Readhess) 2M EvnDisp (L++) SMART (Readhess) 2M- IFAE (Aar) Varia,ons up to a factor 2 2B- L++ IFAE Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 9/30

10 Mini- array performance An example with a telescope in opera,on (MAGIC data) Sta,s,cal uncertain,es: 5-20% Systema,c changes (upgrades, observing condi,ons, ): 20-50% Ø Need of different set of IRFs Ø Dis,nct sets of MC produc,ons to cope with changing condi,ons MAGIC Coll. arxiv: Accep. Astrop. Phys Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 10/30

11 Mini- array performance Ø A detailed tune- up of the whole chain Ø Detector simula,on: telescope op,cs; SiPM signal Ø Data pipeline: signal extrac,on and calibra,on à cleaning à image reconstruc,onà γ/h discrimina,on Ø Coherent descrip,on when comparing different telescope types for CTA- SSTs Ø Needs interac,on with other SST groups: 1. GCT- CHEC 2. SST- 1M 3. ASTRI ASTRI MC- DATA ASTRI- CTA Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 11/30

12 The interac,on of ASTRI in CTA: MC- SST Kick- off mee,ng: Torino, October 2014 Monthly Seevogh mee,ngs (last: 5 th, 20 Feb) Indico Web pages hjps:// observatory.org/indico/categorydisplay.py?categid=76 GCT- CHEC H. Costan,ni, T. Armstrong, A. Zech, S. White, T. Greenshaw SST- 1M A. Porcelli, R. Moderski, T. Montaruli, +new students ASTRI C. Bigongiari, F. Di Pierro, A. Stamerra, T. Mineo, V. La Parola, G. Cusumano; S. Vercellone, G. Pareschi, D. Gardiol, G. Rodeghiero + K. Bernloehr (MC- CTA coordinator) + A. Okumura, Y. Takanori, D. Parsons, G. Meier, A. Moralejo,. simulation guys Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 12/30

13 The interac,on of ASTRI in CTA: MC- SST General goals: build a common view among instruments comparison of intermediate simula,on steps and performances fix common problems OperaUve goals: defini,on of coherent set of parameters to be included in Sim_telarray evaluate how to adapt Sim_telarray and reconstruc,on sonware for a correct simula,on of the telescopes. Defini,on of intermediate plots for comparison (checkpoints) before comparing the final performances Final goal: agreed and checked SST configura,ons to be included in Sim_telarray for PROD3 à aim of PROD3: final deployment layout for CTA Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 13/30

14 CORSIKA The simulauon input acuons checkpoints EAS simula,on same for all telescopes Sim_Telarray telescope/op.cal simula.on detector/electronics simula.on Ø SST- 1M Ø GATE Ø ASTRI Ø SST- 1M cam Ø CHEC- M/S Ø ASTRI cam readhess, evndisp, mars simulated data data reduc.on calibrauon, cleaning data reconstruc.on image analysis, γ- h cuts MC analyzed data cleaning levels calibra,on cuts and γ/h op,miza,on Performances Ang res, E res sensi.vi.es

15 CORSIKA The simulauon input ac)ons checkpoints EAS simula,on same for all telescopes Dedicated produc.on for all groups à define common layout Sim_Telarray telescope/op.cal simula.on detector/electronics simula.on Ø SST- 1M Ø GATE Ø ASTRI Ø SST- 1M cam Ø CHEC- M/S Ø ASTRI cam modifica.ons in sim_telarray check impact modifica,ons (θ, baffles) common solu.ons (e.g. window, coa,ng) For details this document checks on sim_telarray common solu.ons (e.g. PDE, pe resp.) For details this document simulated data readhess, evndisp, mars data reduc.on calibrauon, cleaning data reconstruc.on image analysis, γ- h cuts cleaning levels calibra,on cuts and γ/h op,miza,on same dark NSB; set of NSB levels? define a common strategy for best cleaning levels define strategy for cut defini,on (e.g. γ- efficiency, γ/h ra,o...) MC analyzed data Performances Ang res, E res sensi.vi.es

16 CORSIKA Sim_Telarray The simulauon input acuons checkpoints EAS simula,on telescope/op.cal simula.on detector/electronics simula.on simulated data same for all telescopes Ø SST- 1M Ø GATE Ø ASTRI Ø SST- 1M cam Ø CHEC- M/S Ø ASTRI cam Dedicated few- telescopes produc,on for all groups à define common layout modifica,ons in sim_telarray check impact modifica,ons (θ, baffles) common solu,ons (e.g. window, coa,ng) For details this document checks on sim_telarray common solu,ons (e.g. PDE, pe resp.) For details this document for details this document op,cal PSF, efficiency trigger rates trigger efficiency linearity, dynamic range charge resolu,on,me resolu,on check internal conversions (calib. TBD)... readhess, evndisp, mars data reduc.on calibrauon, cleaning data reconstruc.on image analysis, γ- h cuts cleaning levels calibra,on cuts and γ/h op,miza,on same dark NSB; set of NSB levels? define a common strategy for best cleaning levels define strategy for cut defini,on (e.g. γ- efficiency, γ/h ra,o...) pe rec vs true cleaning levels (TBD) hillas parameters (single) cuts op,miza,on (TBD) off- axis response... MC analyzed data Performances Ang res, E res sensi.vi.es It makes sense to compare them only a1er common strategies and parameters have been defined and ayer checkpoints have been compared.

17 Precursors Dedicated EAS simula,ons (CORSIKA) on 7- telescopes rings (C. Bigongiari) Ø different telescope configura,ons in Sim_telarray Ø op,miza,on of parameters, reduc,on and analysis (different analysis packages) Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 17/30

18 MC- data produc,on A ques,on of survival Gammas 2- tel trigger TeV See: ASTRI- MC- OATO Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 18/30

19 MC- data produc,on A ques,on of survival Protons 2- tel trigger See: ASTRI- MC- OATO Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 19/30

20 ASTRI in Sim_telarray CORSIKA files à full telescope simula.on with Sim_telarray Sim_telarray is now customized to ASTRI CTA/MC coordinator and Sim_telarray developer Konrad Bernlöhr MC ASTRI/CTA coordinator Federico Di Pierro Federico s POSTER Details on MC- pipeline and MC- producuon Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 20/30

21 Telescope and detector simula,on Telescope simulation general sw description: ASTRI-MC most recent updates New version of Sim_telarray available since 9 th February with ASTRI customized features: segmented mirror; two-fold reflectivity M1-M2; pixel inclination; peak-detection of the integrated signal (CITIROC); LG-HG chains. new camera configuration file with updated parameters Parameter Reflectivity Camera PDE NSB Value equiv_reflectivity_wpmma_2014_sln.dat camera-astri-smart4-verynew-singlepdm.dat PDE_ASTRI_Prototype_ _noXtalk.dat 22 MHz, individual pixel rate 1 pe HG ADC Amplitude 27. [ADC] HG Electronics noise HG Pedestal 5.2 [ADC], sigma of gaussian noise 961 [ADC] next update of ASTRI-MC Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 21/30

22 Telescope and detector simula,on F. Di Pierro 5th MC- SST seevogh Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 22/30

23 Op,cs Telescope and detector simula,on Sim_telarray simula,on comparisons and checks Perfect agreement between Sim_telarray ROBAST (Gate) Sim_telarray/Torino <- > Simula,on/Palermo Comparison between segmented and monolithic See also ASTRI- MC- OATO ASTRI- MC- OATO Segmented exagonal Circular monolithic Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 23/30

24 Telescope and detector simula,on Ciro Bigongiari s POSTER Procedure for tuning up calibra,on parameters Final MC valida)on possible when stable and reliable real data will be available. LED- events (C14) tuning See Ciro s POSTER and talk Also talk at MASS meeung 2-4 feb. Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 24/30

25 From MC to DATA pipeline MC- data pipeline from EAS to IRF running Ø ASTRI- DATA will provide the final reconstruc,on sonware. Ø MC data produc,on will be integrated in the DATA- pipeline developed in ASTRI. Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 25/30

26 MC in the ASTRI data pipeline In IACTs MC- data is embedded in the DATA- pipeline Credits: A. Antonelli and S. Lombardi Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 26/30

27 MC Data produc,on New production of scientific MC data delivered for the first one see ASTRI-MC-OATO n n n Improved simulation of the electronics Production completely dedicated to SLN's prototype We have delivered a consistent database of: Scientific Events (both gamma and protons) Calibration Events (C1,4 and C1,3) Pedestal events ("variance") To DATA WP Rm n Data format described in ASTRI-MC-OATO See Ciro s POSTER and talk Also Federico s talk at MASS meeung Bologna, 2-4 february 2015 Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 27/30

28 Desiderata New features are foreseen and included in the queue: Comparison of different coa.ngs: Al+SiO2; dielectric Inclusion of MSTs in the mini- array configura,on Different sebngs for science cases: Off- axis response Simula,on of diffuse emission Higher zenith angles Different NSB levels Layout op.miza.on foreseen in PROD3 (goal of common MC- SST efforts for CTA) Preliminary results done in previous work ASTRI- MC- IFSITO AoB: central PDM, degraded PSF, poin,ng uncertain,es Priorities! Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 28/30

29 Conclusions ü The ASTRI MC PIPELINE is fully opera,ve Our group is the only one among CTA MC groups (but Konrad) handling the full pipeline from EAS to IRFs ü Interac,on with DATA- pipeline We handle MC data production including both scientific and calibration events for ASTRI-SST-2M at SLN. ü The MC VALIDATION process has started ü MC- SST: Interac,on with CTA We actively worked to have Sim_telarray adapted to dual mirror, SiPM detector and front-end electronics of ASTRI We organize regular meetings aiming at common solutions and strategies for all SST telescopes simulations. Bologna - 24/02/ ASTRI general Mee,ng MC simula,on group CTA- INAF 29/30

30 MC simula,on group CTA- INAF 30/30