EEV CCD39 wavefront sensor cameras for AO and interferometrySciMeasure Analytical Systems, Inc.Ray DuVarney, Charlie Bleau, Garry MotterEmory University, Department of PhysicsRay DuVarney*NASA/JPL, Interferometry Systems GroupRich Dekany, Mitch Troy, Gary Brack,Thang Kieu, Dean Palmer* has a financial interest in SciMeasure Analytical Systems, Inc.NASA/JPL, Interferometry Metrology GroupStuart Shaklan, Andy Kuhnert

Camera System OverviewCamera Control UnitPower SupplyCamera HeadCCD EnclosureClocksBiasesTECVideo1.2 Ghz Bi-directional Control/data Fiber-optic LinkRS-232 ControlHalt SignalRS-170 Video

Data Out4 12-bit Data Ports

Overflow/handshake Port (SOF/SOL/DRDY)Stopped StatusFIBER COMM & DATAREALTIME DISPLAYGRAPHICS DISPLAYVIDEO OVERLAYDATA CAPTURESEQUENCER+5V DIGITAL12V ANALOG+24V ANALOGCLOCK DRIVERSFIBER COMM & DATAANALOG PROCESSORPREAMPLIFIERCCD

Sequencer4-3Address BusData BusProgramsSubroutinesPatterns11-128-128-12151515882488-bit8-bit32-bit87-37-3Address GeneratorAddrMux32KStaticRAMDataMuxAddrMux32KStaticRAMDataMuxAddrMux32KStaticRAMDataMuxAddress Generator50 MHz ClockISA Bus Inter-faceDataO/PAddress GeneratorExt.Select & Sync

Sequencer ProgrammingProgramsSubroutinesPatternsdefine program 0;# 1100 Hz Nominal

subroutine start_of_frame; repeat 32; subroutine read_line; end repeat; repeat 2; subroutine integrate; end repeat;end define;define subroutine read_line;

pattern send_start_of_line1; pattern shift_line1; pattern wait10; pattern shift_pixel17; pattern read_pixel32;

end define;define pattern read_pixel;

## t = /turbo, c = /clamp, S = sample, V = *DCAV# RG IA BS OR xxx t c S CCCC FV xx# 123 123 123 0123

0 010 010 010 000 0 1 0 1111 01 00; # 0 010 010 010 000 0 1 0 1111 01 00; # 1 010 010 010 000 0 1 0 1111 01 00; # 0 010 010 010 000 0 1 0 1111 01 00; # 0 010 010 010 000 0 0 0 1111 01 00; # 0 010 010 010 000 1 0 1 1111 01 00; # 0 010 010 010 000 1 0 1 1111 01 00; # 0 010 010 010 000 1 0 1 1111 01 00; #

0 010 010 001 000 1 0 1 0000 01 00; # 0 010 010 001 000 1 0 1 0011 01 00; # 0 010 010 001 000 1 0 1 1000 01 00; # 0 010 010 001 000 0 0 1 0100 01 00; # 0 010 010 001 000 0 0 1 1100 01 00; # 0 010 010 001 000 0 0 1 0010 01 00; # 0 010 010 001 000 0 0 1 1010 01 00; # 0 010 010 100 000 0 0 1 0110 01 00; #

0 010 010 100 000 0 0 1 1111 01 00; # 0 010 010 100 000 0 0 0 1111 01 00; # 0 010 010 100 000 0 1 0 1111 01 00; # 0 010 010 100 000 0 1 0 1111 01 00; # 0 010 010 100 000 0 1 0 1111 01 00; # 0 010 010 100 000 0 1 0 1111 01 00; # 0 010 010 100 000 0 1 0 1111 01 00; # 0 010 010 100 000 0 1 0 1111 01 00; #

end define;

Fiber LinkCAMERA CONTROL UNIT (CCU)CAMERA HEAD UNIT (CHU)FilterOffsetGainCCD ClocksClampSampleTurboDigital Video PortsDigital Data PortsExternal Sequencer Data1.2 Ghz Bidirectional Control/data Fiber-optic LinkMUXMUXDEMUXDEMUXONBOARDSEQUENCERTRANS-CEIVERONBOARD SCANCONVERTERTEMP/VACUUMSTATUS, ETCDATATRANS-CEIVERCONTROLCLOCKS

Clock Driver Board12 Individually Programmable Clocks11V Range16V Maximum Swing20 ns Switching Time-12V+12VTTL InVoutV lowV spanVariable RegulatorVariable RegulatorLevel ShifterEL 7182

Preamplifier BoardA=575 ohm driversVideo OutputsTemperatureCCD ClocksCCD BiasesTEC PowerClock FiltersBias FiltersTEC FiltersCCD Peltier Pack

Analog Processor822SampleOffsetClampVideoGainFilterTurboData1 of 4 channels75 ohmsHIGH SPEED SHUNTTIME CONST. 1 of 4GAIN 1 of 4CLAMPOFFSETA/D

Data Output/Display/CaptureDataRGBSRS-170VideoDataStreamRealtimeDataPortsISA BusData Capture CardRealtime Display CardFiber Link Card1 MEGAPIXEL DUAL PORT STATIC RAMISA BUS INTERFACERS-422STATIC RAMREALTIME SCAN CONVERTERINTERNAL SCAN CONVERTERDEMUX

Control Panel

Camera PerformanceEEV CCD39 - 64x64 pixel frame size - Read Noise calculated from Photon Transfer curveMIT/LL CCID19 achieved 5.9 e- @ 1.1 Mpix/sec/port and 600 frames/sec

Noise (e-)

Pixel Rate (/sec/port)

Frame Rate (/sec)

3.0

@

80 kpix

50

3.5

@

178 kpix

110

5.9

@

1.14 Mpix

550

7.5

@

2.00 Mpix

1100

Palomar AO System

Palomar AO System

PALAO ResultsAO Loop Open FWHM = 1.2"AO Loop Closed FWHM = 0.097" (Strehl = 20%)QS Aql (HR 7486) Binary Star with 0.185" Separation

MAM Vacuum Tank

MAM Vacuum Tank

Control Panel

Future Camera Overview IControl UnitPower SupplyCamera HeadCCD EnclosureClocksBiasesTECVideo1.2 Ghz Bi-directional Control/data Fiber-optic LinkRS-232 ControlHalt SignalData Out/Handshake16-bit Data PortsSOF/SOL/DRDYStopped StatusFIBER COMM/DEMUXPOWER/BIASESCONTROLLER/SEQUENCERCLOCK DRIVERSFIBER COMM/MUXANALOG PROCESSOR(S)12, 14 or 16-bit optionsPREAMPLIFIERCCD160 mm 3U cards160 mm 3U cardsDATA OUTPUT

Future Camera Overview IIPower SupplyCamera HeadCCD EnclosureClocksBiasesTECVideoRS-232 ControlHalt Signal16-bit Data Ports &SOF/SOL/DRDYStopped StatusPOWER/BIASESCONTROLLER/SEQUENCERCLOCK DRIVERSANALOG PROCESSOR(S)12, 14 or 16-bit optionsPREAMPLIFIERCCD160 mm 3U cardsDATA OUTPUT

AcknowledgementsSBIR Phase I Grant NAS8-97195SBIR Phase II Grant NAS8-98081Horace Dale - Physics Dept, Emory UniversityBetty Motter - SciMeasurePart of the research described herein was carried out at the Jet Propulsion Laboratory, under a contract with the National Aeronautics and Space Administration