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STATES IN O$sup 15$ AND N$sup 14$ FROM REACTIONS INDUCED BY He$sup 3$ ON C$sup 12$ AND PROTONS ON N$sup 14$ AND N$sup 13$ AND C$sup 13$ FROM B$sup 10$(He$sup 3$,P$gamma$$sub 15$$.$$sub 1$)C$sup 12$* AND B$sup 11$(d,n$gamma$$sub 15$$.$$sub 1$) C$sup 12$*

Thesis/Dissertation ·
OSTI ID:4003017

The total yields of /sup 14/N(p,n)/sup 14/O from threshold, 6.345 plus or minus 0.015, to 12 Mev and of /sup 12/C(/sup 3/He,n)/sup 14/0 from threshold, 1.445 plus or minus 0.010, to 3.5 Mev were obtained by measuring the activation of 140. The differential cross sections at several angles and some angular distributions of the following outgoing radiations induced by /sup 3/He on /sup 12/C from 1.8 to 5.4 Mev were also measured: elastic /sup 3/He, alpha /sub 0/, alpha /sub 1/, proton groups corresponding to the formation,of the /sup 14/N ground state and excited states at 2.311, 3.945, 4.91, 5.10, 5.69, , p/sub 5/, p/ sub 6/, p/sub 8/, p/sub 9/, and p/sub 11/), and the 6.44 Mev gamma ray ( gamma / sub 6.44/) following the p/sub 9/ group. Both the p/sub 9/ and the corresponding gamma /sub 6.44 show a strong isolated resonance at 2.990 plus or minus 0.010 Mev with GAMMA /sub lab/ = 125 plus or minus 10 kev. Analyses, assuming pure compound nucleus formation as the reaction mechanism, on the elastic /sup 3/He, p/ sub 9/, gamma /sub 6.44, p/sub 1/, and n/sub 0/ data yielded J /sup pi/ = 5/2/ sup +/ for the 14.46 Mev state of /sup 15/O and even parity for the 6.44 Mev state of /sup 14/N. Indicitions of states in /sup 15/O it 14.03, Mev were also observed. The 15.1 Mev gamma excitation curves of the reactions /sup 10/B(/sup 3/ He,p gamma /sub 15.1)/sup 12*/C and /sup 11 /B(d,n gamma /sub 15.1/) /sup 12*/ C(15.1 Mev state, T = 1) were measured. In the reaction /sup 10/B(/sup 3/He,p gamma /sub 15.1)/sup 12*/C, there were indications of res onances at E3/sub He/ = 2.85 Mev ( GAMMA = 450 kev) and 5.2 Mev ( GAMMA = 240 kev), corresponding to states in /sup 13/N at 23.8 and 25.6 Mev. In /sup 11/B(d,n gamma /sub 15.1/)/sup 12*/C, there were indications of resonances at E/sub d/= 2.18 Mev ( GAMMA = 140 kev), 3.08 Mev ( GAMMA = 185 kev), 3.71 Mev ( GAMMA = 170 kev), and 4.41 Mev (broad), corresponding to states in /sup 13/C at 20.52, 21.28, 21.81 and 22.41 Mev. (Dissertation Absti., 24: No. 9, March 1964)

Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-18-021336
OSTI ID:
4003017
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ACTIVATION
ANGULAR DISTRIBUTION
BORON 10
BORON 11
CARBON 12
CARBON 13
COMPOUND NUCLEI
CROSS SECTIONS
DEUTERON BEAMS
ENERGY LEVELS
ENERGY RANGE
EXCITATION
GAMMA RADIATION
HELIUM 3
ION BEAMS
ISOSPIN
LIFETIME
MEASURED VALUES
MEV RANGE
NEUTRONS
NITROGEN 13
NITROGEN 14
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
OXYGEN 14
OXYGEN 15
PARITY
PHYSICS
PROTON BEAMS
PROTONS
REACTION KINETICS
RESONANCE
SPIN