%0 Journal Article %T Real and limit sensitivity of some radiation detectors of THz/sub-THz ranges %A Shevchik-Shekera A. V. %J Tekhnologiya i Konstruirovanie v Elektronnoi Apparature %D 2012 %I Politehperiodika %X 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. %K NEP detectors %K teraherz/sub-teraherz detectors %U http://www.tkea.com.ua/tkea/2012/1_2012/pdf/01.zip