The production of cosmic radiation by a solar flare on August 31, 1956

Journal Article · Tue Sep 01 04:00:00 EDT 1959 · Nuovo Cimento

DOI:https://doi.org/10.1007/BF02725118· OSTI ID:4217070

McCracken, K. G.

It is shown that the neutron counting rates observed by three widely separated recorders increased by approximately two percent about half an hour after the observation of an intense solar flare at 1226 U.T. on August 31, 1956. The event, as observed at all three stations, exhibited the abrupt onset, and gradual recovery typical of solar flare effects. The time delay between the first visual sighting of the flare, and the earliest arrival of cosmic radiation at the earth was about 20 min. It is shown that the quantity of cosmic radiation which arrived at the earth was two to three orders of magnitude less than the quantities which arrived during earlier flare effects. Finally, consideration of the temporal dependence of the small flare effect suggests that only a small quantity of cosmic radiation was produced in the solar flare.

• Research Organization: Univ. of Tasmania, Hobart, Australia
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-002867
• OSTI ID: 4217070
• Journal Information: Nuovo Cimento, Journal Name: Nuovo Cimento Journal Issue: 6 Vol. 13; ISSN 0029-6341
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CONFIGURATION
COSMIC RADIATION
EARTH
NEUTRON DETECTION
NEUTRONS
PHYSICS
PRODUCTION
SOLAR FLARES
SUN
VARIATIONS