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Exploration of Geometric Noise Suppression in Transition Edge SensorsWe present noise data on Mo/Au superconducting transition edge sensors featuring the noise suppression geometry using normal metal bars transverse to the bias current. The effectiveness of the bars in far-infrared bolometers and x-ray microcalorimeters is evaluated. We have examined the effect of the resistivity of the superconducting bilayer on excess noise in bolometer devices. We have also studied the effect of bar density on energy resolution in x-ray devices. We address the question of whether the reduction is noise is necessarily coupled to a reduction in the effective transition sharpness. We propose a fabrication technique experiment to examine the dependence of alpha and noise suppression in similar transverse bar densities.
Document ID
20040171660
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Chervenak, J. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Allen, C. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Abrahams, J. A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Miller, T. M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Talley, D. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Staguhn, J. G.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Benford, D. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mosely, S. H.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Finkbeiner, F. M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Brekosky, R. G.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 22, 2013
Publication Date
September 27, 2004
Subject Category
Acoustics
Funding Number(s)
OTHER: 263-10-12
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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