1. GLAST LAT Project4.1.7 G. Haller V21 GLAST Large Area Telescope: Electronics, Data Acquisition & Flight Software W.B.S 4.1.7 Face-to-Face Nov 04 Mike Huffer/Gunther Haller mehsys@slac.stanford.edu haller@slac.stanford.edu Gamma-ray Large Area Space Telescope

2. GLAST LAT Project4.1.7 G. Haller V22 Test-Stand Summary Finished TKR test-stands ACD was already finished Remaining: –1 TPS + 3 TEM’s. In conformal coating, expected back end of this week. To be shipped next week –1 PDU to I&T

3. GLAST LAT Project4.1.7 G. Haller V23 Test-Stand Summary (continued) ACD –DAQ/I&T team travelled to GSFC to update LCB including code on ACD test-stands Status: seems to work CAL –DAQ/I&T team travelled to NRL to update 3 CAL test-stands Status: works –Additional LCB’s to update remaining ones in progress TKR –Need to decide when to update

4. GLAST LAT Project4.1.7 G. Haller V24 ACTEL’s Exchanged all 32-1 and 72-series MEC fab-line ACTELS with UMC-fab-line –Programmed 4 TEM sets –Are in lead-forming, expected back this week –To be assembled on TEM Qual, TwrA, TwrB TEM (one spare set of FPGA’s) 72-1 series (used on LCB) not received yet, but not needed yet

5. GLAST LAT Project4.1.7 G. Haller V25 TEM/TPS Production Status TEM/TPS Assembly (at General Technology) –Surface-mount assembled both sides of 3 TEMs and 3 TPS’s –No FPGA’s since GT pointed out some pin-misalignment Sent back to SLAC, decided that they can be used GT agreed but we will be sending UMC line devices Does not delay schedule, since FPGA’s will be put on using METCAL rework station –3 TEM’s were dropped from about 3 feet by accident NCR’s created, damage being investigated Probably ok but needs action –Boards were again inspected –Proceed with thru-hole components –In parallel decide how to repair damage if needed –Find out why it happened to prevent it from happening again –Wait till function/performance test to close NCR’s –Very slow progress. GT received parts kit 9/23. As of today only SMD components loaded (no thru- hole, etc) –Test-stands arrived at General Technology 3 engineers will travel Monday after Thanksgiving to Board test (assuming assembly proceeds as planned) –Getting assembled boxes back before Christmas is a challenge Released production of balance of PCB’s, expected in 20 days. –Can’t wait anymore until GT has first board assembled –Low risk since SLAC had already assembled one flight boards and tested over T Plan still to wait for programming of balance of FPGA’s until board test results are available

6. GLAST LAT Project4.1.7 G. Haller V26 GASU & GASU-PS & PDU PDU –Flight PCB fabrication: Received at SLAC –One board will be loaded in-house –Internal cable assembly SOW released RFP package being assembled in purchasing –Enclosure in fabrication, expected early December –Overall assembly SOW released Drawings released RFP being assembled in purchasing –Issue with one part: Omnirel regulator which was recalled: Delivery not before end of February –Tester defined GASU, GASU-Power Supply –Flight PCB fabrication awarded: Expected to be received early December –Rest identical status as PDU –Tester being designed and built –Test coverage for AEM and CRU, and EBM strong, GEM is weak

7. GLAST LAT Project4.1.7 G. Haller V27 SIU/EPU Crate enclosures in fabrication, expected to be received in December RFP package for internal harness being worked on in purchasing Boards –Finished hole size will be 32 mil +/-3 on PCI boards including back-plane –Did not get feed-back by GSFC or PCB (but had sent email that we will proceed unless there are concerns) –Proceed with flight board fabrication SIB, LCB, CPS, Backplane PCB packages in release cycle –Backplanes, LCB out for RFP –ERNI cPCI connectors still not approved, not sure about the screening plan. Issue with Sn plating? Did some tests at SLAC material lab, report in progress Need closure from PCB & GSFC Assembly SOW not written yet EEPROM on RAD750 issue –See FSW. Decided to use 4 images and check-sum. No PROM

8. GLAST LAT Project4.1.7 G. Haller V28 LAT Harness (Box-to-Box) RFP package of most cables being finalized in purchasing –Drawings released There will be second RFP for remaining drawings –E.g. PDU to miscellaneous internal LAT sensors

9. GLAST LAT Project4.1.7 G. Haller V29 ASIC All GTCC1, GCCC1 TEM ASIC’s screened –Qualification testing at GSFC has started –Test-setup assembled at GSFC and is working GLTC ASIC’s (for GASU) –Thermal cycled GLTC’s –Screening hardware debugged, working –Test software in progress (Leonid has taken over for Oren who is not at SLAC anymore)

10. GLAST LAT Project4.1.7 G. Haller V210 Testbed Hardware construction complete Minor testing of EPU’s from a system level remains… –Waiting on availability of FSW EPU bootstrap Physics-to-Physics demonstration – GLEAM to (LATTE) Single Event Display > 20 KEvents/sec (for hours) All 16 towers (+ readout of ACD) –Normal muons –1 GEV gammas Working on incorporating ACD simulation –Shown to work stand-alone

11. GLAST LAT Project4.1.7 G. Haller V211 17 th “tower” Constructing… –Full tower 4 AFEE production-line flight board copies 36 production line MCMs flight design cables –Partial tower 4 AFEE production-line flight board copies Limited number of EM MCMs Burn-in cables Keystone for much of our testing… –FSW Calibration software –GASU production –TEM validation –I & T software commissioning and practices validation Calorimeter worked right out the box Issues with tracker (being worked)