Computer Science – Sound
Scientific paper
Nov 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974csgr.conf...31k&link_type=abstract
In ESRO The Context and Status of Gamma Ray Astronomy p 31-36 (SEE N75-25813 16-93)
Computer Science
Sound
Balloon-Borne Instruments, Energy Spectra, Gamma Rays, Radio Bursts, Balloon Sounding, Compton Effect, Cosmic Rays, Flux Density, Scintillation Counters, Vela Satellites, X Ray Sources
Scientific paper
A burst of gamma rays with energies greater than 1 MeV occurring on May 14, 1972, at 201247 UT (151247 local time) was detected during a balloon flight from Palestine, Texas, at a float altitude of 4g/sq cm residual atmosphere. The detector was a tank of liquid scintillator 1m x 0.5 m x 15 cm surrounded by a 0.6 cm plastic scintillator in anticoincidence. The signal was 60 standard deviations above a steady background of 600 counts/sec. The flux was 0.12 (+0.07 or -0.04) gamma/sq cm, and the time integrated flux 20(+11 or -7) gamma/sq cm. Only one such event was seen during the 8 hours of observation in the daytime on May 14 and 15. Two sub-flares in H alpha occurred during the burst, but not coincident with the start time. A detector on the Solrad satellite observed X-rays on all channels 2 minutes after the gamma ray start time. This event is similar to three earlier reported events.
Koga Ryan
Simnett George
White Steven R.
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