High Energy Astrophysics Group

OSO-7

Orbiting Solar Observatory-7

Solar X-ray Experiment

Soft X-ray Detector | Hard X-ray Detector | Particle Detectors | Electronics | Performance

The UCSD OSO-7 Solar X-ray Experiment was designed to detect x-rays from the sun in the energy range 1.9 to 342 keV, electrons in the range 0.1 to 75 keV, and 2.6-54 MeV protons. The instrument was mounted in the wheel section which rotated at 30 RPM.

The Solar X-ray Experiment detector complement consisted of a soft x-ray detector, a hard x-ray detector, three particle detectors, and a sun sensor. The x-ray detectors and the sun sensor had 90 degree x 20 degree fields of view in the scan and pitch planes, respectively, while the two particle detectors which viewed a full hemisphere.

Data were accumulated for ~10.24 s and consist of four or five 0.5 s whole-sun scans. The sun sensor controlled the solar data acquisition and separate live-time counters kept track of the actual active data collecting time of each detector.

OSO-7 Information

Mission Objectives
Spacecraft
Cosmic X--ray Experiment
Solar X--ray Experiment
Results
Publication