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Warning : these figures refer to Tek4 when it was used with a Dutch controller and are for reference only.

Tek4 Parameters

Device Identification

STOP PRESS : TEK4 has blobs that reduces it's sensitivity in the U band.  16/2/2000
Chip name TEK4
Year of manufacture 1993
Serial number 1675BR10-04
First light on La Palma July 1994
Description Thinned AR coated

Operational Characteristics

    Measurements made on JKT A&G box 01/06/97
    Speed  Standard Quick Turbo Nonastro
    Bias(ADU) 1138 1204 1192 1005
    Gain(e/ADU) 1.16 1.63 2.58 4.42
    Noise(e) 4.0 4.1 6.0 10.2
    Linear to(ADU) 60k 60k 40k 15k
    Readout time(s) 95 55 41 30
Binning - NB when binning the readout speed will always be TURBO regardless of the readout speed selected.
Vertical CTE 0.999997
Horizontal CTE  0.999994

Physical Characteristics

Pixel Scale (JKT imaging) 0.331 arc/pixel
Field of view (JKT imaging) 5.6 x 5.6 arcmins
X Pixel size 24 microns
Y Pixel size 24 microns
X size in pixels of digitised area 1124
Y size in pixels of digitised area 1124
X size of useful imaging area 1024
X start of useful imaging area 50
Ystart of useful imaging area 0
LN2 capacity of cryostat 2.5 litres
Cryostat window thickness 4 mm
Distance from window to CCD 11.4 mm
Cryostat window size 40mm x 40mm

Operational Parameters

Flooding type none
Operating temperature 173K
Preferred amplifier A,D failed 3/95
Network name  CCD4
Anti-blooming available no

Measured Characteristics

Dark current <6 e/hour
Chip flatness  57 micron convex bow

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Last modified: 21 November 2010