Application of the blackbody radiation source for characteristics measurement of submillimeter low-temperature direct detectors
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As is well-known characteristics measurement of submillimeter low-temperature direct detectors can be fulfilled using their signal response for the radiation of temperature swept blackbody. We describe a method using the Fredholm integral equation of first kind which solution gives possibility to derive direct detector spectral characteristic from the signal response dependence on temperature with acceptable accuracy. Then a noise equivalent power of detector can be determined as well.
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