NUCLEAR REACTIONS INDUCED BY THE NITROGEN BOMBARDMENT OF SULFUR
Journal Article
·
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
Thick targets of ZnS, containing natural sulfur, were bombarded with 28- Mev nitrogen ions in the ORNL 63-in. cyclotron. The compound nucleus resulting from bombardment of S/sup 32/ with 28-Mev nitrogen ions in V/sup 46/, with an excitation energy of 33.3 Mev. The following nuclear reactions were studied: (1) S/sup 32/(N/sup 14/,p) Ti/sup 45/,; (2) S/sup 32/(N/sup 14/, 2p) Sc/sup 44/;(3) S/ sup 32/(N/sup 14/, 2p)Sc/sup 44m/; (4) S/sup 32/(N/sup 14/,2pn)SC/sup 43/;(5) S/ sup 32/(N/sup 14,2 alpha )K/sup 38/; an d (6) S/sup 32/(N/sup 14,N/sup 13/)S/sup 33/. The yields as a function of incident energy for these reactions were differentiated to obtain excitation functions. The cross sections for (1), (2 and 3), and (5) are compared with calculations based on the statistical theory of compound nucleus decay. Two values of the level density parameter, a, were employed, first considering and then ignoring de-excitation of a nucleus by gamma- ray emission. The value a = A/10.5 fits the p and 2p emission cross sections when gamma emission is considered. The excitation function for reaction (6) agrees well with the systematics of previously studied nitrogen-induced transfer reactions. (auth)
- Research Organization:
- Oak Ridge National Lab., Tenn.; Univ. of Florida, Gainesville
- NSA Number:
- NSA-13-010487
- OSTI ID:
- 4270382
- Journal Information:
- Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 113; ISSN PHRVA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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RATIO OF CROSS SECTIONS FOR FORMATION OF THE Sc$sup 44$ AND Sc$sup 44$m PAIR IN HEAVY ION REACTIONS
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· Zh. Eksperim. i Teor. Fiz.
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OSTI ID:4117185
Related Subjects
ALPHA PARTICLES
COMPOUND NUCLEI
CROSS SECTIONS
CYCLOTRONS
DECAY
DENSITY
EMISSION
ENERGY
ENERGY LEVELS
ENERGY RANGE
EXCITATION
GAMMA RADIATION
ION BEAMS
IONS
MEASURED VALUES
NEUTRONS
NITROGEN
NITROGEN 13
NITROGEN COMPOUNDS
NUCLEAR REACTIONS
NUCLEAR THEORY
NUCLEI
ORNL
PHYSICS AND MATHEMATICS
POTASSIUM 38
PROTONS
REACTION KINETICS
SCANDIUM 43
SCANDIUM 44
STATISTICS
SULFUR
SULFUR 32
SULFUR 33
TARGETS
THICKNESS
TITANIUM 45
VANADIUM 46
ZINC SULFIDES
COMPOUND NUCLEI
CROSS SECTIONS
CYCLOTRONS
DECAY
DENSITY
EMISSION
ENERGY
ENERGY LEVELS
ENERGY RANGE
EXCITATION
GAMMA RADIATION
ION BEAMS
IONS
MEASURED VALUES
NEUTRONS
NITROGEN
NITROGEN 13
NITROGEN COMPOUNDS
NUCLEAR REACTIONS
NUCLEAR THEORY
NUCLEI
ORNL
PHYSICS AND MATHEMATICS
POTASSIUM 38
PROTONS
REACTION KINETICS
SCANDIUM 43
SCANDIUM 44
STATISTICS
SULFUR
SULFUR 32
SULFUR 33
TARGETS
THICKNESS
TITANIUM 45
VANADIUM 46
ZINC SULFIDES