Signal Experiment Onboard the Interhelioprobe Spacecraft

Experiment SIGNAL is planned to take place on board the spacecraft (SC) INTERHELIOPROBE. A xenon gamma-ray spectrometer is to be used in the experiment. The gamma-ray spectrometer in question has been chosen because of its characteristics permitting detailed probing of solar gamma-radiation under rough experimental conditions. The equipment is able to provide: high energy resolution (5-6times better than that of scintillation detectors), goodperformance at high temperatures, steady operation at significant vibroacoustic load, and high radiation resistance of working substance. The aforesaid properties of the xenon gamma-ray spectrometer meet goals and objectives of the experiment SIGNAL.