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Comparison of the Proton-Induced Dark Current and Charge Transfer Efficiency Responses of N- and P-Channel CCDsThe proton-induced CTE behavior for the Lawrence Berkeley National Laboratory (LBNL) p-CCD (being developed for the Supernovae Acceleration Project (SNAP) and Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) n-CCDs were compared using 55Fe, EPER and FPR techniques. CTE performance of the p-CCD is about an order of magnitude better after a 63 MeV fluence of 2.5 x 10(sup 9)/sq cm, which is equivalent to 2.5 years in the shielded HST orbit. Notched n- and p-CCDs yielded factor of two improvement in CTE performance as compared to their un-notched versions. The introduction rate of hot pixels was greater in p-CCD as compared to n-CCD, and also greater in notched than un-notched devices.
Document ID
20040079832
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Marshall, Cheryl
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Marshall, Paul
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Wacynski, Augustyn
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Polidan, Elizabeth
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Johnson, Scott
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Campbell, Art
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 21, 2013
Publication Date
June 22, 2004
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: SPIE Europea International Symposium Astronomical Telescopes
Location: Glasgow, Scotland
Country: United Kingdom
Start Date: June 21, 2004
End Date: June 25, 2004
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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