Engineering topics
Publications and source records attributed to Johnson, J. H..
The Space Shuttle Program is briefly described, and the major program milestones (first horizontal flight, first vertical flight, and initial operational capability) extending over a period from 1976 to 1978 are reviewed. The communications and tracking requirements, and the system developed to meet them, are discussed for the ascent, on-orbit, reentry, and landing phases of a Shuttle mission.
A system has been developed which permits the determination of dose in real time or near real time directly from the pulse-height output of a radiation spectrometer. The technique involves the use of the resolution matrix of a spectrometer, the radiation energy-to-dose conversion function, and the geometrical factors, although the order of matrix operations is reversed. The new technique yields a result which is mathematically identical to the standard method while requiring no matrix manipulations or resolution matrix storage in the remote computer. It utilizes only a single function for each type dose required and each geometric factor involved.
Meteoroid velocity measurement by satellite- borne meteoroid detectors, giving Geminid meteor shower measurements results
Geminid meteoroid dust particles detection, determining velocity and orbital elements from OGO 3 flux measurements
Design, fabrication, and flight results of Radiation and Meteoroid Satellite
Bremsstrahlung produced in thick Al and Fe targets by electron bombardment with various incident energies, discussing external spectral emission intensity distributions
Bremsstrahlung production in thick aluminum and iron targets by 0.5 to 3.0 MeV electrons
Bench-maintenance test set for spacecraft instrumentation system