Next generation of a sub-millimetre wave security camera utilising superconducting detectors

Based on the previously demonstrated concept of passive security screening utilising superconducting detectors, a next generation camera was developed to meet application demands. The new system was designed to achieve background limited performance using a linear array of up to 128 transition edge...

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Bibliographic Details
Published in:Journal of instrumentation 2013-01, Vol.8 (1), p.P01014-P01014
Main Authors: May, T, Heinz, E, Peiselt, K, Zieger, G, Born, D, Zakosarenko, V, Brömel, A, Anders, S, Meyer, H -G
Format: Article
Language:English
Subjects:
Arrays
Cameras
Coolers
Cooling
Detectors
Security
Sensors
Superconductivity
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Summary:Based on the previously demonstrated concept of passive security screening utilising superconducting detectors, a next generation camera was developed to meet application demands. The new system was designed to achieve background limited performance using a linear array of up to 128 transition edge sensors which are read in a time domain multiplexing scheme by SQUID current sensors. It will be able to record videos with 256 x 128 pixels at 25 Hz frame rate. The necessary cooling of the detector array is provided by a commercial pulse tube cooler and a second, self-contained cooling stage. For imaging, different optics modules adapted to a feed-horn detector coupling can be used in combination with a linear scanning apparatus for mirrors up to 40 cm.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/8/01/P01014