Simultaneous investigation of parent electrons and bremsstrahlung X rays by rocket-borne detectors

Details Simultaneous investigation of parent electrons and bremsstrahlung X rays by rocket-borne detectors Simultaneous investigation of parent electrons and bremsstrahlung X rays by rocket-borne detectors

Jul 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jgr....80.2869v&link_type=abstract

Journal of Geophysical Research, vol. 80, July 1, 1975, p. 2869-2875. NASA-supported research; National Research Council

Computer Science

Sound

5

Bremsstrahlung, Electron Energy, Electron Precipitation, Radiation Detectors, Rocket-Borne Instruments, X Ray Spectra, Instrument Packages, Monte Carlo Method, Parachute Descent, Rocket Sounding, X Ray Density Measurement

Scientific paper

Simultaneous measurements of the energy spectrum of precipitating electrons and the resulting bremsstrahlung X-ray spectrum were carried out during an auroral event on March 3, 1971, at the Churchill Research Range, Manitoba, Canada. The electron data were obtained with detectors on a Black Brant VB sounding rocket (275-km apogee), while the X-ray flux was measured by an instrument package that was boosted to 60 km on an Arcas rocket. The X-ray package was deployed on a parachute at apogee to provide a slow descent through the atmosphere. Thick-target bremsstrahlung theory is used to calculate the X-ray flux produced by the incident electrons, and a Monte Carlo method is used to predict the X-ray spectrum at various altitudes appropriate for comparison with the measured X-ray data. Satisfactory agreement between theory and experiment is obtained, and the value of the constant in the thick target theory has been estimated to be about 0.00002.

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