Published July 12, 2009
| Version v1
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A Passive, Real-time, Terahertz Camera for Security Screening, using Superconducting Microbolometers
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Description
We describe a broadband terahertz camera based on a modular 64-element linear array of hot-spot microbolometers Unlike many superconducting sensor arrays, the readout for this array is performed by entirely uncooled electronics; no SQUIDs or cryogenic HEMTs are employed. The operating principles for the microbolometer and the readout scheme are described and compared with those of similar superconducting sensors.
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