NSSDCA ID: 1962-059A-01
Mission Name: Explorer 15Six diffused silicon p-n junction semiconductor diodes were used to measure the energy spectrum of electrons and protons in the artificial radiation belt. Detector A was sensitive to electrons in the energy range 0.5 to 2.8 MeV and to protons in the range 2.1 to 4.0 MeV. Detectors B through F were sensitive to electrons in the range 0.5 to 2.9 MeV and to protons in the range 2.1 to 22 MeV. The detectors were operated in high and low bias modes, enabling discrimination of protons from electrons. Detectors B and C were located on protruding omnidirectional mounts with a look angle of about 2 pi sr. The other four detectors looked perpendicular to the spin axis of the satellite. The detectors fed through prescalers and log rate meters to 16 analog telemetry channels. Counts were accumulated for 0.15 s every 0.3 s. All data transmission was in real time. Useful data were obtained from the experiment from launch through December 23, 1962.
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Name | Role | Original Affiliation | |
---|---|---|---|
Dr. Upendra D. Desai | Other Investigator | NASA Goddard Space Flight Center | |
Dr. Walter L. Brown | Principal Investigator | AT&T Bell Laboratories |