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Real and limit sensitivity of some radiation detectors of THz/sub-THz rangesKeywords: NEP detectors , teraherz/sub-teraherz detectors Abstract: It is shown that while calculating the NEP parameter of radiation detectors of THz/sub-THz range, the fluctuations of the background radiation flux at different temperatures of the background in the case of diffraction-limited beam should be taken into account.
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