Atacama NIR Camera Wiki
Detector
Start:
*PACE HAWAII-2 [#wf60bccc]
ANIR adopts an engineering grade PACE HAWAII-2 array dete...
and uses only a single quadrant with 1024 x 1024 pixels.
In a normal operation, the detector is cooled down to 70K.
*TAC Readout Electronics [#jdb345a1]
For the array readout, data acquisition system TAC is ado...
The TAC system consist of a real-time Linux PC equipped w...
and a digital I/O board PCI-2772c (Interface Co. Ltd.) wi...
consist of the fan-out board mentioned above and two VME ...
The advantage of this system is the flexibitily of the cl...
which enables us to read out the array at any speed you w...
*Readout Procedure [#n45e8c34]
Typical readout mode is a correlated double sampling (CDS...
'''reset - read - read'''(reset all the frame first befor...
with pixel rate of 4usec/pix,
which result in the shortest exposure time of 4.2sec.
This can be accelerated up to 2usec/pix (or 2.1sec/frame)...
serious readout pattern occurs, and we recommend this mod...
objects.
There are following optional readout modes;
- ''ResetRead Mode'': Instead of typical '''reset - read ...
'''reset_and_read - read''' readout is possible, where ''...
resets each row of the array before the readout. This wil...
saturation of the frame, but some reset pattern occurs, s...
only for bright targets.
- ''Multiple Fowler Sample Mode'' is also possible to red...
- ''Ramp-up Sample Mode'' is possible not only to suppres...
dynamic range. In this mode, obtained frames will be proc...
all the pixels will be fitted within the range where the ...
get the true flux even for the saturated flux.
However, this mode is still experimental and user should ...
End:
*PACE HAWAII-2 [#wf60bccc]
ANIR adopts an engineering grade PACE HAWAII-2 array dete...
and uses only a single quadrant with 1024 x 1024 pixels.
In a normal operation, the detector is cooled down to 70K.
*TAC Readout Electronics [#jdb345a1]
For the array readout, data acquisition system TAC is ado...
The TAC system consist of a real-time Linux PC equipped w...
and a digital I/O board PCI-2772c (Interface Co. Ltd.) wi...
consist of the fan-out board mentioned above and two VME ...
The advantage of this system is the flexibitily of the cl...
which enables us to read out the array at any speed you w...
*Readout Procedure [#n45e8c34]
Typical readout mode is a correlated double sampling (CDS...
'''reset - read - read'''(reset all the frame first befor...
with pixel rate of 4usec/pix,
which result in the shortest exposure time of 4.2sec.
This can be accelerated up to 2usec/pix (or 2.1sec/frame)...
serious readout pattern occurs, and we recommend this mod...
objects.
There are following optional readout modes;
- ''ResetRead Mode'': Instead of typical '''reset - read ...
'''reset_and_read - read''' readout is possible, where ''...
resets each row of the array before the readout. This wil...
saturation of the frame, but some reset pattern occurs, s...
only for bright targets.
- ''Multiple Fowler Sample Mode'' is also possible to red...
- ''Ramp-up Sample Mode'' is possible not only to suppres...
dynamic range. In this mode, obtained frames will be proc...
all the pixels will be fitted within the range where the ...
get the true flux even for the saturated flux.
However, this mode is still experimental and user should ...
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