OBSERVATION OF A SOLAR BREMSSTRAHLUNG BURST AT 1926 UT, 11 AUGUST 1960
Technical Report
·
OSTI ID:4095409
A radiation increase from a solar bremsstrahlung burst during a 2+ flare was observed by balloon detectors. The observation was detected simultaneously by identical equipment at Minneapolis, Minn., and Fort Churchill, Manitoba. The instruments were an aluminum ionization chamber filled with argon, an aluminum Geiger counter, and a copper Geiger counter. The response of the aluminum but not the copper detectors indicates a low-energy x-ray event ( approximately -3O kev). The burst appeared suddenly at 1926.O UT, Aug. 11, rose rapidly to a maximum, and returned to half-intensity at lOO seconds. An aversge energy flux of 5.1 x lO/sup 6/ ev/cm/sup 2//sec at atmospheric depth was indicated. Close correlation of the event with r-f and optical observations is shown. (T.R.H.)
- Research Organization:
- Minnesota. Univ., Minneapolis. School of Physics
- NSA Number:
- NSA-15-009638
- OSTI ID:
- 4095409
- Report Number(s):
- NP-9536; CR-32
- Country of Publication:
- United States
- Language:
- English
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