(1)X-ray detector: It is a bell-shaped fluorite sensitive element, which is installed at the triangle vertex on the satellite surface. It can detect X-ray radiation of 10,000 tons equivalent nuclear explosion in the distance of 65,438+600 million kilometers, and the fluorite sheet is excited by it to generate visible light pulses less than 1 microsecond, which are converted into electric pulses by photomultiplier tubes and then transmitted. In order to prevent solar X-rays from being excited on the fluorite sheet, the fluorite sheet is covered with beryllium metal sheet.

(2) Gamma-ray detector: Its sensitive element is a fluorite sheet with a diameter of 8 cm and a length of 5 cm, which is installed under the skin of the satellite. When it is excited by gamma rays within 80 million kilometers, it produces optical pulses, which are converted into electrical pulses by photomultiplier tubes and transmitted.

(3) Neutron detector: installed inside the satellite, using boron trifluoride counter as neutron counter, the detection distance can reach 6.5438+0.2 million kilometers.

(4) Visible light sensor: used to detect the fireball of nuclear explosion.

(5) Electromagnetic pulse sensor: used to detect electromagnetic pulse generated by nuclear explosion.