... the dark current rate because of the bias introduced by the hot pixel tail ... To avoid this, the hot pixel tail is sometimes reduced with sigma-clipping. ... a log-normal Gaussian or with a Gaussian and an exponential drop-off for the tail ...
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Ссылки http://www.stsci.edu/hst/wfc3/documents/ISRs/WFC3-2007-26.pdf -- 252.7 Кб -- 28.11.2007 Похожие документы
... produced for WFC3 exhibit higher dark current tails than seen in FPA64 (Figure 11 ... QE curves shows systematically larger dark current tails than the lower QE group ...
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Ссылки http://www.stsci.edu/hst/HST_overview/documents/calworkshop/workshop2005/papers/kimble.pdf -- 613.3 Кб -- 04.04.2006 Похожие документы
... Cosmic Ray Tails-WFPC2 and STIS The Cosmic Ray Tails from dark frames were analyzed ... tail length is an indication of the release timescale for the traps since the tail ...
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Ссылки http://www.stsci.edu/hst/wfc3/documents/ISRs/2001/WFC3-2001-05.pdf -- 683.8 Кб -- 25.09.2008 Похожие документы
... tail) = os.path.split(rmsfile) # If there is an extension present in tail, then strip it out, when # constructing rptfile. posdot = string.find(tail,".") if (posdot != -1): rptfile = tail[:posdot] + "_69.rpt" else: rptfile = tail + "_69.rpt" else: # Get ...
... say) with the cold detector, the hot pixel tail is at a very low level with respect ... temperatures, the level needs to be increased to remain above the hot pixel tail ...
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Ссылки http://www.stsci.edu/hst/wfc3/documents/ISRs/WFC3-2008-02.pdf -- 96.7 Кб -- 31.01.2008 Похожие документы
... light reduces loss (pre-fills traps) Tails are seen on bright pixels as charge ... Bright Target Pixel 4 Example of "tail" on 310 DN target caused by CTE effect. ... Tail contains 9% of the total counts. ...
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Ссылки http://www.stsci.edu/institute/stuc/apr07-presentations/WFPC2Update.pdf -- 1305.9 Кб -- 17.04.2007 Похожие документы