CCD2 Information

CCD Name	CCD2
Serial Number
Description	Loral 64x64 Frame Transfer CCD, front-illuminated,
Pixel Size(micron)	15x15
Chip size	128x64 (0 prescan pixels)
Preflash, e-	None
Readout Mode		NON-MPP
Dark Current (-40 DegC)		3e-/pixel/sec
Full Well Capacity [e/px]		10K

Astromed 3200 Controller Performance
SDSU1 Controller Performance
Screening Data
Cosmetics
Quantum Efficiency
Images
Detector History

Astromed 3200 Controller Performance

Amplifier bottom left in use.

Characteristic	Amplifier B
Noise (e-/RMS)	4.5
Gain (e-/ADU)	1.0
Full Frame READOUT TIME [secs]	6.7m
Control Temperature [K]	220
Linearity 0.1% [e]
Dark Current [e/px/hr]

SDSU1 Controller Performance

Amplifier bottom left in use.

Characteristic	Amplifier B
Noise (e-/RMS)
Gain (e-/ADU)
Full Frame READOUT TIME [secs]
Control Temperature	220K
Linearity 0.1% [e]
Dark Current [e/px/hr]

Amplifier Screening Data

Setup

Data Rate       : CCDI 120       VO Load: IDS=0.2mA

Temperature     : 183K

tc              : 3              pgain  : 16

DC BIAS	Volts	Clocks	Voltage Swing
VDDA,B	+17.5V	Reset Gate	-8.2 to +1.5
VRDA,B,OFD	+9.0V	Serial Gates	-8.5 to +1.5
VLGA	-6.5V	Summing Well	-8.5 to +1.5
SUB,PKGGND,AMPGND	-4.5V	Parallel 1,2,3	-12.5 to +1.0

Amplifier Characteristics

Characteristic	Amplifier A	Amplifier B
Noise (e-/RMS)
Gain (uV/e-)
Parallel CTE
Serial CTE

Cosmetics

Dead Columns :

Hot Columns :

Low Columns :

Images

The following images are available as fits files

bias
flats ~ 100e
flats ~ 10000e
dark 10 minute exposure
Dot test pattern image

Detector History

Science grade chip for 2.3m Telescope Tip-tilt

Testing report 971030 Improved noise from 9e to 4.5e by

increasing VRD from 9.0V to 9.2V,
reducing reset high time from 13 to 6
increasing CCDI from 95 to 190.

Testing report 16-Feb-98 to get rid of first line affect by changing delays before first pixel of each line is read. This affect was introduce by the previous testing 31/10/97
Testing report 11-May-99 Tiptilt system returned to MSO because of the following reported problems

chip not getting cold enough. Chip only getting down to 240 Kdeg where it is suppose to operate at 220 Kdeg
Slope in bias image from bottom to top
When an object on the CCD, the bottom part of the CCD has very high count. The number of bottom lines affected is dependent on the intensity of the object.
An object has a strange horizontal smear.

The image problems were fixed by replacing CCD with spare ccd serial number 9. Serial #9 has both bottom amplifiers operational and has a readnoise of 5e at a gain of 1e/ADU and a well depth > 65000. None of the other amplifiers of the original ccd seem to be operational. Since we are still using the bottom left amplifier no code needs to be modified.

Testing report 6-Dec-99 Tiptilt system returned to MSO because of the following reported problems

chip not getting cold enough. Chip only getting down to 255 Kdeg where it is suppose to operate at 220 Kdeg
No image with high count band at bottom of image.
The image problems were fixed by replacing CCD with spare ccd serial number 9. Serial #9 has both bottom amplifiers operational and has a readnoise of 5e at a gain of 1e/ADU and a well depth > 65000. None of the other amplifiers of the original ccd seem to be operational. Since we are still using the bottom left amplifier no code needs to be modified.

Testing report 14-Jul-2000 New bonded CCD tested.