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Re: XRT/CCD bias and dark



Hi Bish,

  There is some discussion on pg 2-24 of the Blue Book (XRT section)
a PDF copy is available at:
http://xrt.cfa.harvard.edu/resources/documents/

  Steve Saar has looked at structures in the dark images and his code to
remove those is in the XRT_PREP routine.

  There is also a "grey book" on the CCD that I have only seen in  
hardcopy,
maybe Kano has an extra copy available. I think the Blue Book text is  
from
the grey book.

Ed
===================================================================
       Dr. Edward E. DeLuca           Smithsonian Astrophysical  
Observatory
       edeluca@cfa.harvard.edu     MS 58
Office 617 496 7725                     60 Garden Street
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On Sep 19, 2007, at 6:24 PM, Bish ishibashi wrote:

> Where could I find a documentation on bias/dark
> calibration for XRT/CCD? Particularly I'm looking
> for information on (any) correlation between CCD
> temperature and its dark current (and stability
> of bias level w.r.t. CCD temp).
>
> Thanks,
>
> Bish
>
>
> -- 
> "Bish" K. Ishibashi, Ph.D.
>
> NorthWest Research Associates, Inc.       e bish@cora.nwra.com
> CoRA Division                             w 303-415-9701 x241
> 3380 Mitchell Lane                        f 303-415-9702
> Boulder, CO 80303
> U.S.A.                                    h www.cora.nwra.com/~bish