EEV CCD39 wavefront sensor cameras for AO and interferometry

1
EEV CCD39 wavefront sensor cameras for AO and
interferometry

• SciMeasure Analytical Systems, Inc.
• Ray DuVarney, Charlie Bleau, Garry Motter

Emory University, Department of Physics Ray
DuVarney
has a financial interest in SciMeasure
Analytical Systems, Inc.
NASA/JPL, Interferometry Systems Group Rich
Dekany, Mitch Troy, Gary Brack, Thang Kieu, Dean
Palmer
NASA/JPL, Interferometry Metrology Group Stuart
Shaklan, Andy Kuhnert
2
Camera System Overview
RS-170 Video Data Out 4 12-bit Data
Ports Overflow/handshake Port (SOF/SOL/DRDY)
SEQUENCER
RS-232 Control
FIBER COMM DATA
REALTIME DISPLAY
GRAPHICS DISPLAY
Halt Signal
VIDEO OVERLAY
DATA CAPTURE
Stopped Status
Camera Control Unit
1.2 Ghz Bi-directional Control/data Fiber-optic
Link
Clocks
5V DIGITAL
CLOCK DRIVERS
PREAMPLIFIER
Biases
12V ANALOG
FIBER COMM DATA
CCD
TEC
24V ANALOG
ANALOG PROCESSOR
CCD Enclosure
Power Supply
Video
Camera Head
3
Sequencer
Address Bus
ISA Bus Inter-face
Data Bus
15
15
15
8
8
8
8
Programs
Subroutines
Patterns
24
Addr Mux
32K Static RAM
Data Mux
Addr Mux
32K Static RAM
Data Mux
Addr Mux
32K Static RAM
Data Mux
Data O/P
Ext. Select Sync
4-3
7-3
7-3
8-bit
8-bit
32-bit
11-12
8-12
8-12
Address Generator
Address Generator
50 MHz Clock
Address Generator
4
Sequencer Programming
Patterns
Programs
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
define program 0 1100 Hz Nominal
subroutine start_of_frame repeat 32
subroutine read_line end repeat repeat
2 subroutine integrate end
repeat end define
Subroutines
define subroutine read_line pattern
send_start_of_line 1 pattern shift_line 1
pattern wait 10 pattern
shift_pixel 17 pattern read_pixel 32 end
define
5
Fiber Link
CAMERA CONTROL UNIT (CCU)
Digital Video Ports
DEMUX
ONBOARD SEQUENCER
Digital Data Ports
MUX
TRANS-CEIVER
ONBOARD SCAN CONVERTER
External Sequencer Data
1.2 Ghz Bidirectional Control/data Fiber-optic
Link
Gain
Offset
TEMP/VACUUM STATUS, ETC
Filter
DEMUX
CONTROL
MUX
TRANS-CEIVER
CCD Clocks
DATA
CLOCKS
Clamp
Sample
CAMERA HEAD UNIT (CHU)
Turbo
6
Clock Driver Board
V span
Variable Regulator
12V
Level Shifter
EL 7182
TTL In
Vout
Variable Regulator
-12V
V low

• 12 Individually Programmable Clocks
• 11V Range
• 16V Maximum Swing
• 20 ns Switching Time

7
Preamplifier Board
Clock Filters
CCD Clocks
A5
CCD Peltier Pack
Video Outputs
Bias Filters
CCD Biases
75 ohm drivers
Temperature
TEC Filters
TEC Power
8
Analog Processor
1 of 4 channels
Turbo
HIGH SPEED SHUNT
2
Filter
2
Gain
TIME CONST. 1 of 4
GAIN 1 of 4
Video
Data
A/D
75 ohms
Clamp
CLAMP
8
Offset
OFFSET
Sample
9
Data Output/Display/Capture
Data Stream
Data Capture Card
Fiber Link Card
INTERNAL SCAN CONVERTER
ISA Bus
1 MEGAPIXEL DUAL PORT STATIC RAM
ISA BUS INTERFACE
RS-422
Realtime Data Ports
DEMUX
Data
R
G
REALTIME SCAN CONVERTER
STATIC RAM
RS-170 Video
B
S
Realtime Display Card
10
Control Panel
11
Camera Performance
EEV CCD39 - 64x64 pixel frame size - Read Noise
calculated from Photon Transfer curve MIT/LL
CCID19 achieved 5.9 e- _at_ 1.1 Mpix/sec/port and
600 frames/sec
12
Palomar AO System
13
Palomar AO System
14
PALAO Results
QS Aql (HR 7486) Binary Star with 0.185"
Separation
AO Loop Open FWHM 1.2"
AO Loop Closed FWHM 0.097" (Strehl 20)
15
MAM Vacuum Tank
16
MAM Vacuum Tank
17
Control Panel
18
Future Camera Overview I
DATA OUTPUT
Data Out/Handshake 16-bit Data Ports SOF/SOL/DRDY
FIBER COMM/DEMUX
RS-232 Control
CONTROLLER/SEQUENCER
Halt Signal
Stopped Status
Control Unit
160 mm 3U cards
1.2 Ghz Bi-directional Control/data Fiber-optic
Link
POWER/BIASES
Clocks
CLOCK DRIVERS
PREAMPLIFIER
Biases
FIBER COMM/MUX
Power Supply
CCD
ANALOG PROCESSOR(S) 12, 14 or 16-bit options
TEC
CCD Enclosure
Video
Camera Head
160 mm 3U cards
19
Future Camera Overview II
RS-232 Control
DATA OUTPUT
Halt Signal
CONTROLLER/SEQUENCER
Stopped Status
Clocks
POWER/BIASES
16-bit Data Ports SOF/SOL/DRDY
PREAMPLIFIER
Biases
CLOCK DRIVERS
CCD
ANALOG PROCESSOR(S) 12, 14 or 16-bit options
TEC
CCD Enclosure
Video
Power Supply
Camera Head
160 mm 3U cards
20
Acknowledgements

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