NUCLEAR PROCESSES IN CHROMOSPHERIC FLARES

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Izv. Krymsk. Astrofiz. Observ.

OSTI ID:4033212

Vladimirskii, B M; Severnyi, A B

Flare activity on the sun can cause changes of chemical elements in the solar atmosphere when the flares are heated to thermonuclear temperatures. The elernents D, Li, Be, and B can be burned off and formed again in nuclear processes. In each cubic centimeter during a strong flare, 10/sup 4/ deuterium nuclei burn off. The total deuterium of the solar atmosphere may be expended in 5 x 10/sup 7/ years. Alpha particles, which are products of (p, alpha ) reactions, may serve as a source for neutrons resulting from reactions of the type ( alpha ,n). A (p, alpha ) reaction can produce 1.5 x 10/sup -4/ alpha particles in one cubic centimeter during a flare lasting 10/sup 3/ seconds. Nuclei of C, N, and O found in the solar component could be fissioned by protons of chromospheric plasma producing neutrons. It is possible that there are radiation belts around the sun like those of the earth. Hydromagnetic oscillations of plasma in the radiation belts cause acceleration of protons. A common concentration of C, N, and O nuclei in comparison with hydrogen is 1.5 x 10/sup -3/. The probability of nuclear collisions resulting in formation of /sup 6,7/Li by one proton is about 0.6 nuclei of lithium per cubic certimeter, which is a little more than the burned-off quantity. It was concluded that flare activity influences the contents of light elements in the solar atmosphere. (OTS)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-18-018544
• OSTI ID: 4033212
• Journal Information: Izv. Krymsk. Astrofiz. Observ., Journal Name: Izv. Krymsk. Astrofiz. Observ. Vol. Vol: 29
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALPHA PARTICLES
ASTROPHYSICS
ATMOSPHERE
BERYLLIUM
BORON
CARBON
CROSS SECTIONS
DEUTERIUM
ELEMENTS
FISSION
HYDROGEN
LITHIUM
LITHIUM 6
LITHIUM 7
MAGNETOHYDRODYNAMICS
NEUTRONS
NITROGEN
OSCILLATIONS
OXYGEN
PHYSICS
PLASMA
PRODUCTION
PROTONS
QUANTITY RATIO
RADIATION BELTS
SOLAR FLARES
SUN
THERMONUCLEAR REACTIONS