Abstract
As a recording element in spectrometers with an optical scheme built on the Rowland circle, as a rule, a multi-element photodetector is used. Such a receiver has a flat surface and therefore the best focusing can be achieved at no more than two points. As a result of the research it was proposed to overcome this drawback by mounting a fiber-optic plate of a special design on the surface of a multi-element photodetector, which allows to obtain the best focus on the entire field of radiation detection, or to eliminate dead zones in multi-channel spectrometers.
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