ANGULAR DISTRIBUTIONS AND ENERGY SPECTRA OF ELECTRONS ASSOCIATED WITH AURORAL EVENTS

A number of Black Brant II rockets containing various charged-particle detectors have been fired during 1963 and 1964 from Fort Churchill, Manitoba. Most of the firings took place at times of auroral events and the rocket instrumentation was designed to study the particles associated with these even...

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Bibliographic Details
Main Authors: McDiarmid,I. B., Budzinski,E. E.
Other Authors: NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF PURE PHYSICS
Format: Text
Language:English
Published: 1964
Subjects:
*AURORAE
ELECTRONS
ROCKET COMPONENTS
CANADA
ELECTRON DENSITY
IONIZATION
DETECTORS
CHARGED PARTICLES
INTENSITY
MAGNETOMETERS
MEASUREMENT
PROTONS
PITCH(MOTION)
ISOTROPISM
UPPER ATMOSPHERE
ATMOSPHERIC SOUNDING
DISTRIBUTION
Brant
Canada
Fort Churchill
Churchill
Online Access:http://www.dtic.mil/docs/citations/AD0454814
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0454814
Description
Summary:A number of Black Brant II rockets containing various charged-particle detectors have been fired during 1963 and 1964 from Fort Churchill, Manitoba. Most of the firings took place at times of auroral events and the rocket instrumentation was designed to study the particles associated with these events. Pitch-angle distributions have been observed for electrons with energies greater than 40 keV, which show varying degrees of isotropy in the pitch-angle range 0 deg. to 90 deg. In no case has a distribution been observed in which the intensity increased towards small angles. In some cases electron-intensity changes appear to be correlated with changes in spectrum and angulr distribution, while in other cases changes in these quantities do not appear to be related. The particle intensity measurements are used along with radio-frequency probe measurements of electron density to infer values for the nighttime recombination coefficient in the D region of the ionosphere. (Author)

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