REACTIONS OF CARBON IONS WITH PHOTOEMULSION NUCLEI (in Russian)
Reactions of carbon ions with emulsion nuclei were studied. The emulsion consisted of a relatively small number of so-called "light" elements (carbon, nitrogen, and oxygen) and "heavy" elements (bromine and silver). The 110-Mev carbon ion beam passed a magnetic analyzer, was reduced by a diaphragm, and fell on the photoplate at 25 deg to the beam axis. Spallations emitting protons, alpha particles, and heavier fragments were observed. The data on carbon-ion-induced reaction, emitting various members of changed particles, shows an alpha -particle predominance in comparison to protons (from 1300 charged particles only 300 were protons or other singly charged particles). This predominance is explained by C/sup 12/ spallation into three alpha particles at 7.3 Mev, less than half the bonding energy of the last neutron (18 Mev) and last proton (16 Mev) in the carbon nucleus. Previous studies indicate larger alpha - particle yields in emulsion irradiation by oxygen and nitrogen ions; six- and seven-prong stars being formed by binary charged particles. A star formed by a carbon and oxygen ion collision is analyzed. (R.V.J.)
- Research Organization:
- Inst. of Physics and Tech., Academy of Sciences, Ukrainian SSR
- NSA Number:
- NSA-15-013708
- OSTI ID:
- 4075634
- Journal Information:
- Izvest. Akad. Nauk. S.S.S.R., Ser. Fiz., Journal Name: Izvest. Akad. Nauk. S.S.S.R., Ser. Fiz. Vol. Vol: 24
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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Related Subjects
ANGULAR DISTRIBUTION
BINDING ENERGY
BROMINE
CARBON
CARBON 12
EFFICIENCY
FISSION
FISSION PRODUCTS
ION BEAMS
IONIZATION
IONS
IRRADIATION
MAGNETIC FIELDS
MEASURED VALUES
MEMBRANES
NEUTRONS
NITROGEN
NUCLEAR EMULSIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
OXYGEN
PARTICLE TRACKS
PHYSICS
PROTONS
SILVER