Transcript SciMeasure Wavefront Sensor Cameras and their Application

SciMeasure Wavefront Sensor Cameras
and their Application in the
5m Palomar Adaptive Optics System
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, Palomar AO Team
Rich Dekany, Mitch Troy, Gary Brack
History
1992
GTRI
Jim Beletic, Ray DuVarney, Charlie Bleau, Mike Adkins, Tom Collins
1994
Photon Instruments
Jim Beletic, Ray DuVarney, Charlie Bleau, Mike Adkins, Tom Collins
1996
SciMeasure (NASA/JPL)
Ray DuVarney, Charlie Bleau, Mike Adkins
1997
SciMeasure (SBIR Phase I)
Ray DuVarney, Charlie Bleau, Mike Adkins
1998
SciMeasure (SBIR Phase II)
Ray DuVarney, Charlie Bleau, Garry Motter
MIT/LL
CCID11
MIT/LL
CCID11
MIT/LL
CCID19
EEV
CCD39
EEV
CCD39
Camera System Overview
RS-232 Control
SEQUENCER
FIBER COMM & DATA
RS-170 Video
REALTIME DISPLAY
Halt Signal
Data Out
GRAPHICS DISPLAY
VIDEO OVERLAY
4 12-bit Data Ports
DATA CAPTURE
Stopped Status
Overflow/handshake
Port
(SOF/SOL/DRDY)
Camera Control Unit
1.2 Ghz Bi-directional Control/data Fiber-optic Link
Clocks
+5V DIGITAL
±12V ANALOG
+24V ANALOG
CLOCK DRIVERS
FIBER COMM & DATA
ANALOG PROCESSOR
Biases
TEC
Video
Power Supply
Camera Head
PREAMPLIFIER
CCD
CCD Enclosure
Sequencer
ISA
Bus
Interface
Address Bus
Data Bus
15
15
8
Programs
Ext.
Select
&
Sync
15
8
Subroutines
8
Patterns
Addr
32K
Data
Addr
32K
Data
Addr
32K
Data
Mux
Static
Mux
Mux
Static
Mux
Mux
Static
Mux
4-3
RAM
7-3
RAM
8-bit
11-12
Address
Generator
7-3
RAM
8-bit
8-12
Address
Generator
24
32-bit
8-12
Address
Generator
50 MHz
Clock
Data
O/P
Sequencer Programming
Patterns
Programs
define program 0;
define pattern read_pixel;
# 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
pattern
pattern
pattern
pattern
end define;
send_start_of_line
shift_line
wait
shift_pixel
read_pixel
1;
1;
10;
17;
32;
#
# t = /turbo, c = /clamp, S = sample, V = *DCAV
#
RG IA BS OR xxx t c S CCCC FV xx
#
123 123 123
0123
0
0
1
0
0
0
0
0
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
000
000
000
000
000
000
000
000
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
1
1
1
1111
1111
1111
1111
1111
1111
1111
1111
01
01
01
01
01
01
01
01
00;
00;
00;
00;
00;
00;
00;
00;
#
#
#
#
#
#
#
#
0
0
0
0
0
0
0
0
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
001
001
001
001
001
001
001
100
000
000
000
000
000
000
000
000
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0000
0011
1000
0100
1100
0010
1010
0110
01
01
01
01
01
01
01
01
00;
00;
00;
00;
00;
00;
00;
00;
#
#
#
#
#
#
#
#
0
0
0
0
0
0
0
0
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
010
100
100
100
100
100
100
100
100
000
000
000
000
000
000
000
000
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
1111
1111
1111
1111
1111
1111
1111
1111
01
01
01
01
01
01
01
01
00;
00;
00;
00;
00;
00;
00;
00;
#
#
#
#
#
#
#
#
end define;
Fiber Link
CAMERA CONTROL
UNIT (CCU)
ONBOARD
SEQUENCER
External Sequencer Data
M
U
X
D
E
M
U
X
TRANSCEIVER
Digital Video Ports
Digital Data Ports
ONBOARD SCAN
CONVERTER
1.2 Ghz Bidirectional Control/data Fiber-optic Link
TEMP/VACUUM
STATUS, ETC
DATA
CAMERA HEAD
UNIT (CHU)
M
U
X
TRANSCEIVER
D
E
M
U
X
CONTROL
CLOCKS
Gain
Offset
Filter
CCD Clocks
Clamp
Sample
Turbo
Preamplifier Board
CCD Clocks
Clock
Filters
A=5
CCD Biases
Bias
Filters
CCD
Peltier
Pack
Video Outputs
75 ohm drivers
TEC Power
TEC
Filters
Temperature
Analog Processor
HIGH
SPEED
SHUNT
Turbo
Filter
Gain
Video
2
1 of 4 channels
2
TIME
CONST.
1 of 4
GAIN
1 of 4
A/D
75 ohms
Clamp
Offset
Sample
CLAMP
8
OFFSET
Data
Data Output/Display/Capture
Data
Stream
Fiber Link Card
INTERNAL
SCAN
CONVERTER
Data
RS422
Data Capture Card
1 MEGAPIXEL DUAL
PORT STATIC RAM
ISA BUS
INTERFACE
ISA
Bus
Realtime
Data
Ports
D
E
M
U
X
R
STATIC
RAM
REALTIME
SCAN
CONVERTER
G
B
S
Realtime Display Card
RS-170
Video
Control Panel
Camera Performance
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
EEV CCD39 - 64x64 pixel frame size - Read Noise calculated from Photon Transfer curve
MIT/LL CCID19 achieved 6.5 e- @ 1.1 Mpix/sec/port and 600 frames/sec
Future Camera Overview I
RS-232 Control
Halt Signal
Stopped Status
DATA OUTPUT
FIBER COMM/DEMUX
Data Out/Handshake
CONTROLLER/SEQUENCER
16-bit Data Ports
SOF/SOL/DRDY
Control Unit
160 mm 3U cards
1.2 Ghz Bi-directional Control/data Fiber-optic Link
Power Supply
POWER/BIASES
CLOCK DRIVERS
FIBER COMM/MUX
ANALOG PROCESSOR(S)
Clocks
Biases
TEC
12, 14 or 16-bit options
Video
Camera Head
160 mm 3U cards
PREAMPLIFIER
CCD
CCD Enclosure
Future Camera Overview II
RS-232 Control
Halt Signal
Stopped Status
16-bit Data Ports &
SOF/SOL/DRDY
DATA OUTPUT
CONTROLLER/SEQUENCER
POWER/BIASES
CLOCK DRIVERS
ANALOG PROCESSOR(S)
Clocks
Biases
TEC
12, 14 or 16-bit options
Power Supply
Video
Camera Head
160 mm 3U cards
PREAMPLIFIER
CCD
CCD Enclosure
Palomar AO System
PALAO Performance
PALAO Results
PALAO Results
AO Loop Open
FWHM = 1.2"
AO Loop Closed
FWHM = 0.097" (Strehl = 20%)
QS Aql
(HR 7486)
Binary Star
with
0.185"
Separation
PALAO Results
Trapezium Cluster in the Orion Nebula
The left image was taken with the AO system off; the seeing was about 1 arcsec. With
the AO system locked on Theta 1 Ori C (brightest star), the stellar images were
about 0.2" across, with the brightest stars saturated. Each image is represents
approximately 40 arcsec x 40 arcsec field.
Acknowledgements
•SBIR Phase I Grant NAS8-97195
•SBIR Phase II Grant NAS8-98081
•Jim Beletic and the ESO Optical Detector Team
•Mike Shao - Director, Interferometry Center of
Excellence, NASA/JPL
•Eric Bloemhof - Mt. Palomar Observatory
•Horace Dale - Physics Dept, Emory University