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Dewar numbers Dn indicate re-furbished heads.

Dewar numbers Dn indicate New heads.

Detector (location)	Dewar	Type	Frame Format	Pixel Size	Read Noise(e)	Details
SiTE 2k (SSO)	D10	Tek	2048x2048	24um	12	thinned, on 40" f/8
E2V (SSO)	D11	CCD4210	Imaging: 2048x512 Frame: 2148x562	13.5um (Full Well ~100ke)	3.5(G=2) 4.65(G=3)	thinned, R/O time 7s, on 2.3m telescope New DBS-B (Old Tek 1kx1k)
E2V (SSO)	D6	CCD4240	Imaging: 2048x2048 Frame: 2148x2148	13.5um (Full Well ~100ke)	4.4(G=2) 3.6(G=1)	thinned, R/O time 15s, on 2.3m telescope New Imager (Old EEV 2kx1k)
E2V (SSO)	D7	CCD4210	Imaging: 2048x512 Frame: 2148x562	13.5um (Full Well ~100ke)	3.85(G=2/2us) 3.0(G=2/4us)	thinned, R/O time 7s, on 2.3m telescope New DBS-R (Old Tek 1752x532)
Test Dewar #1 (RSAA)	D20	E2V, LL, FI	2kx4k - 4kx4k	15um	expect:2-5	For CCD Testing for SkyMapper Eng. and Science arrays (Newly constructed Head)
Test Dewar #2 (RSAA)	D9	E2V, LL, FI	2kx4k - 4kx4k	15um	expect: 2-5	For CCD Testing for WiFeS Eng. and Science arrays (Old DBS Red Head)

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E2V Imager Timing Files and Gain Settings

For the Imager, fast = medm = slow, the detector is read-out at
the same speed i.e. about 15 seconds. There is now NO slow or
medium speed with the new Imager.

So the DEFAULT, 2.4e/adu lod file is - fast.lod

The GAIN setting of the Imager may now be changed using the
GAIN option on the Cicada Menu, rather than re-loading a timimg file

The gain settings and noise are as follows

GAIN	CDS Gain	System Gain (e/adu)	Noise(e)	Bias	Comment
0	9.5	0.53	4	--	Very Hi Gain
1	4.75	1.1	3.6	1343	Hi Gain
2	2	2.4	4.4	1190	Default
3	1	5.6	6.8	--	Low Gain

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DBSB Timing Files and Gain Settings

For the DBSB, fast = medm = slow,
the detector is read-out at the same speed i.e. about 7 seconds.
There is now NO slow and medium speed with the new DBSB CCD camera

So the DEFAULT, 1.04e/adu lod file is - fast.lod

However, the GAIN setting of the system may be changed according
to the table below -

The gain settings and noise are as follows

GAIN	CDS Gain	System Gain (e/adu)	Noise(e)	Bias	Comment
1	4.75	0.45	9	--	Hi Gain
2	2	1.04	3.5	1230	Default
3	1	2.35	4.65	1241	Low Gain

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DBSR Timing Files and Gain Settings

For the DBSR, fast = medm = slow,
the detector is read-out at the same speed i.e. about 7 seconds.
There is now NO slow and medium speed with the new DBSR CCD camera

So the DEFAULT, 1.24e/adu lod file is - fast.lod
The Cicada GAIN setting may be changed using this lod file and
will result in a lower system gain and hence the measurement of
higher signal levels. The system gain here is 2.54e/adu

There is also a second timing file (with 4us sampling) available
which results in a higher gain setting of 0.61e/adu and the lowest
read noise, this is - fast-hig.lod

NOTE: for convenience - medm.lod == fast-hig.lod
This allows the observer to load this file from Cicada

The gain settings and noise are as follows

GAIN	CDS Gain	System Gain (e/adu)	Noise(e)	Bias	Comment
2us signal sampling (fast.lod)
2	2	1.24	3.85	~1610	Default Gain
3	1	2.54	5.5	~1550	Full Well
4us signal sampling (fast-hig.lod)
2	2	0.61	3.0	~2100	Lowest Noise

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Enquiries about Current Detector Information?
detman@mso.anu.edu.au

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