Capabilities of the Sun-Terahertz Scientific Instrumentation Detectors in Registering Solar Radiation: Preliminary Evaluation from the Ground-Based Data

The paper describes the Sun-Terahertz space experiment planned for 2025–2027 onboard the Russian segment of the International Space Station (ISS). The main goals of the experiment are to obtain information on the terahertz radiation of the Sun, as well as to study active regions and solar flares. The scientific instrumentation of the Sun-Terahertz experiment contains eight channels (detectors) sensitive to radiation in a frequency range of 0.4–12.0 THz. The purpose of this study is to estimate the voltage at the output of scientific instrumentation detectors during the ISS onboard experiment from the ground-based measurement data and to determine minimal increases in the radiation flux reliably registered by the scientific instrumentation against the background of inherent noises.