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GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom1 Elliott Bloom Integration and Test and Calibration Manager

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Presentation on theme: "GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom1 Elliott Bloom Integration and Test and Calibration Manager"— Presentation transcript:

1 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom1 Elliott Bloom Integration and Test and Calibration Manager elliott@slac.stanford.edu Integration, Test, and Calibration

2 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom2 I&T&C Organization Chart I&T&C Manager Elliott Bloom WBS 4.1.9 I&T Engineer B. Grist WBS 4.1.9.1 Reliability & QA D. Marsh WBS 4.1.9.2 Environmental Test Manager M. Lovellette Online Manager R. Claus Science Verification, Analysis, and Calibration E. do Couto e Silva Particle Test Manager G.Godfrey Integration, Facilities, Configuration, and Test O.Millican (Acting) Instrument Operations Coordinator S. Williams Mechanical Ground Support Equipment TBD I&T Preparation 4.1.9.3 EM1 Model I&T&C Calibration Unit I&T 4.1.9.4 Flight LAT I&T 4.1.9.6 Mission I&T Support 4.1.9.7 I&T Preparation 4.1.9.3 EM1 Model I&T&C Calibration Unit I&T 4.1.9.4 Flight LAT I&T 4.1.9.6 Mission I&T Support 4.1.9.7 I&T Preparation 4.1.9.3 Flight LAT I&T 4.1.9.6 Mission I&T Support 4.1.9.7 I&T Preparation 4.1.9.3 EM1 Model I&T&C Calibration Unit I&T 4.1.9.4 Flight LAT I&T 4.1.9.6 Mission I&T Support 4.1.9.7

3 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom3 Integration and Test Subsystem Work Breakdown 4.1.9.1I & T Management –Coordinate I & T planning –Develop LAT I & T plan, to ensure flow of verification test activities 4.1.9.2Reliability and Quality Assurance –Collect subsystem verification test results –Manage LAT verification test assurance activities 4.1.9.3I & T Preparation - Integration, Facilities, Configuration, and Test, Particle Test, Environmental Test, Science Verification Analysis, & Calibration. Prepare LAT I & T facilities –Develop calibration equipment –Develop Verification matrix and particle test plan –Develop environmental test plan –Develop Calibration plan

4 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom4 Integration and Test Subsystem Work Breakdown - 2 EM1 Model I&T&C-Integration, Facilities, Configuration, and Test, Particle Test, Science Verification Analysis, & Calibration. (Currently no funding) - Coordinate I&T&C tests with subsystem tests. - Use subsystem calibration data to tune up I&T&C calibration program. - Run cosmic rays on “assembled” EM1-EM2 unit at SLAC. 4.1.9.4Calibration Unit I & T -Integration, Facilities, Configuration, and Test, Particle Test, Science Verification Analysis, & Calibration. –Prepare for and integrate Calibration flight modules. –Prepare for and test QU with cosmic rays, positron, photon, and hadron beams. – Produce LAT calibration products for SAS from QU beam data. 4.1.9.6Flight LAT I&T- Integration, Facilities, Configuration, and Test, Particle Test, Environmental Test, Science Verification Analysis, & Calibration. –Prepare for integration of flight LAT; fabricate and test all mechanical GSE –Mechanically integrate flight LAT –Plan for and execute environmental verification testing –Support planning and execution of Observatory I&T

5 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom5 Integration and Test Subsystem Work Breakdown - 3 Produce a Working Instrument! 4.1.9.7Mission I&T Support- Integration, Facilities, Configuration, and Test, Particle Test, Environmental Test, Science Verification Analysis, & Calibration.

6 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom6 Integration, Test, and Calibration Activities I & T “subsystem” is focal point of LAT integration activities –I & T & C team plans and manages activities. –TKR, CAL, and ACD subsystem teams provide support for Integration & Calibration. Total effort involves: –I & T & C Subsystem LAT integration planning and management. Mechanical integration and GSE and EGSE development. Plan Environmental tests and Execute. Calibration particle beam and test equipment development. Ground Verification and Calibration of LAT. Commissioning of LAT in orbit. Deliver a Working Instrument to IOC. –Mechanical Systems Environmental test support. LAT qualification testing analysis. –Electronics and Data Acquisition LAT electrical integration. Performance test planning and execution. Flight software verification testing. –IOC Electrical GSE development, including calibration DAQ system LAT performance test planning. EGSE, and GSE operations and support during LAT I & T & C. –Science Analysis Software Calibration analysis software development.

7 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom7 Integration Planning Activities LAT integration planning –Planning for subsystem integration has been included in development of interfaces and LAT design integration –Developing concepts for integration EGSE and GSE. LAT integration facilities –New clean room facilities have been built at SLAC for GLAST –Facilities include I&T infrastructure Clean room with high bay Storage for flight hardware Environmental Tests –LAT thermal tests at SLAC. –Full suite of environmental tests at NRL. Observatory integration support –I&T&C team has been involved with mission in investigating options for observatory integration. –LAT and observatory require combined EGSE, GSE and coordinated plans environmental test plans. Concept of LAT Integration Frame

8 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom8 Integration and Test Facility at SLAC

9 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom9 I & T Responsibility LAT I&T&C Verification and Calibration Flow VibeRandom vibrate/sine sweepAccAcceptance test level AcAcousticPFQProto-flight qual test level T-CThermal-cycle at 1 atmosphereQualPrototype qual test level T-VThermal-vacuum cycle testProof.Load test at proof level EMIElectro-magnetic interference testEMEngineering Model Engineering model testsTMThermal model Qualification unit testsMMMass model Flight unit/spare testsGSEGround support equip. I&T: Beam test QU – 4 towers Calibration Elec: EM2 TEM, DAC, SIU TKR: QA-B from TKR fab CAL: F1-2 from CAL fab CAL: QA-B from CAL fab TKR: F1-2 from TKR fab Calibration Unit - QU Elec: Qual SIU for EGSE Obs: Vibe/Ac Observatory Acc Obs: T-V Observatory Acc Obs: EMI Observatory Acc Mech: Flt Rad’s from Mech I&T: LAT Calibration Airplane testCal I&T: LAT Environmental tests (NRL)Acc TKR/CAL: F1,2 from QU I&T: LAT Assembly, Test Acc Elec: Flt SIU’s to LAT I&T&C CAL: F3-16 from CAL fab TKR: F3-16 from TKR fab Mech: Flt Grid from Mech ACD: ACD to LAT I&T Flight LAT - FU

10 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom10 EGSE Areas of Responsibility GLAST Mission Scott Lambros LAT –Large Area Telescope Peter Michelson EGSE –Electronics Ground Support Equipment Gunther Haller I&T&C –Integration and Test and Calibration Elliott Bloom IOC –Instrument Operation Center Scott Williams EGSEI&T&CIOC Online Mission LAT

11 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom11 Tests & EGSE Configurations SIS Spacecraft Interface Simulator IPS Instrument Power Supply EM1- I&T&C only use data EM2 non-flight hardware QU –Qualification unit QU QU DAC non-flight hardware

12 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom12 LAT Performance Specifications Science Verification, Analysis and Calibration (SVAC) System Low Level CalibrationHigh Level CalibrationScience Verification Calibration Products SAS Calibration Requirements SVAC Plan LAT Verification Plan (LAT-SP-00010-1) Science Requirement Document (GLAST-00010)

13 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom13 Low Level CalibrationHigh Level CalibrationScience verification Effective Area Energy Resolution Point Spread Function Field of View Time Accuracy Background Rejection Deadtime Source Location Point Source Sensitivity GRB,AGN location GRB,AGN notification time ACD Detection Efficiency (CT1) High Threshold detection (CT2) TKR Single Tower Alignment (CT4) Multiple Tower Alignment (CT5) LAT & Observatory Alignment (CT6) CAL PIN Diodes Optical Gain (CT10) Light Attenuation (CT11) Light Asymmetry (CT12) ACD Pedestals (CT3) TKR Noisy Strips (CT7) Dead Strips (CT8) Time-Over-Threshold (CT9) CAL Pedestals (CT13) Energy range: Electronic Gain (CT14) Energy range: Electronic Gain Occupancy (CT15) Energy range: Integral non linearity (CT16) Energy range: Differential non linearity (CT17) Subset of performance calibrations Subset of baseline calibrations SVAC Data (being reviewed by subsystems)

14 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom14 Particle test Verification Matrix Requirements flow down from –LAT Science Requirements Document – Level II Specification LAT-SS- 00010-1 (found in LAT-SS-9.1) –Summarized by the Instrument Scientist (Steve Ritz)

15 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom15 Cosmics in Airplane (Psuedo Balloon Flight for Complete Flight Instrument, but Even Better) Full LAT in an airplane (during airplane ride to NRL thermal vac ?) L1T trigger rate measured in single tower during Balloon Flight At 25,000 feet verify the flight hardware at orbital L1T rates –~25 (BFEM size towers) x 540 Hz = 13.5 kHz –DAQ doesn’t crash –Software filter handles the rate and produces the expected downlink rate –Livetime is accurately measured At 35,000 feet test the flight hardware at > orbital L1T rates –~22 kHz saturates the LAT trigger –DAQ should not crash Altitude [Ft] BFEM L1T [Hz] Notes 025Ground 25,000540Same rate as in orbit 35,000900Airplane flight 50,0001175Pfotzer max 127,000540~Orbital rate

16 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom16 Environmental Test Matrix Rev date: 1 Oct 01 Acc LAT Modal Survey M

17 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom17 NRL Environmental Test Facility Spacecraft Acoustic Reverberation Chamber –Sound pressure level of 153 dB through a range of 32-10,000 Hz –30,000-lb force electrodynamic vibration exciter Thermal High-Vacuum Chamber Facility –18 ft diameter x 32 ft in length –Pressures below 1x10 -6 Torr

18 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom18 NRL Environmental Test Facility Spacecraft Vibration Test Facility –Largest table: 35,000-lb Spacecraft Vibration Test Facility –Largest table: 35,000-lb continuous sine or rms random vibration output and 105,000-lb peak random vibration –Frequency range 5 to 2000 Hz EMI Test Chamber

19 GLAST LAT ProjectI&T&C Pre PDR Presentation– Oct. 2, 2001 E. Bloom19 9:30 - 9:55 AM Bloom Intro/Overview 9:55 - 10:10 AM Grist - Top Level Cost Estimate, Top Level Schedule 10:10 - 10:30 AM Marsh - QA/Reliability 10:30 - 10:50 AM Claus - Online 10:50 - 11:10 AM Williams - IOC Coordination 11:10 - 11:30 AM Millican - Integration, Facilities, Configuration, and Test 11:30 - 11:40 AM Break 11:40 - 12:00 PM Godfrey - Particle Test 12:00 - 12:20 PM Lovellette - Environmental Test 12:20 - 12:40 PM do Couto e Silva - Calibration, Analysis and Science Verification 12:40 - 12:50 PM Bloom - Summary/Open issues and concerns. 12:50 - 1:30 PMDiscussion prePDR Schedule

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