INVESTIGATION OF FOUR RESONANCES IN THE REACTION Si$sup 29$(p,$gamma$)P$sup 3$$sup 0$

Journal Article · Tue Apr 01 04:00:00 EST 1958 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.110.96· OSTI ID:4348790

van der Leun, C; Endt, P M

Thin Si/sup 29/ targets have been bombarded with protons from a Cockcroft-Walton generator in the energy region E/sub p/ = 0.2 to 0.8 Mev. The gamma radiation from the Si/sup 29/(p, gamma )P/sup 30/ reaction has been investigated with a NaI scintillation spectrometer at the 326-, 414-, 693-, and 729-kev resonances. Pulse spectra taken at each resonance at angles of B plus or minus 0 and theta = 90 degrees to the proton beam were analyzed with a 70- channel Hutchinson-Scarrott kicksorter. The decay of the resonance levels was further investigated by gamma - gamma coincidence measurements. The following spins, J, parities, and isobaric spins, T, could be assigned to P/sup 30/ levels: Ground state, J = 1/sup +/, T = 0; 0.684 Mev, J = 0/sup +/, T = 1; 0.706 Mev, J = 1/sup +/, T = 0; 1.45 Mev, J = (2/sup +/), T = 0; 2.94 Mev, J = 2/sup +/, T = 1; 4.18 Mev, J = 2/sup +/, T = 1; 5.88 Mev, J = 2/sup -/, T = 1; 5.96 Mev, J = 1/sup -/, T = 0;6.23 Mev, J = 1/sup -/, T = 1; 6.27 Mev, J = 3/sup -/, T = 0. The reaction Q value is measured as Q plus or minus 5.570 plus or minus 0.080 Mev. From absolute gamma-ray yield measurements, the radiation widths of all resonance levels could be determined. These levels are shown to have T as a good quantum number. The strong gamma rays are of E1 character and satisfy the isobaricspin selection rule for self-conjugate nuclei. (auth)

• Research Organization: Rijksuniversiteit, Utrecht
• NSA Number: NSA-12-008778
• OSTI ID: 4348790
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 110; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

COCKCROFT-WALTON ACCELERATORS
COINCIDENCE METHODS
DECAY
DIPOLES
EFFICIENCY
ELECTRIC MOMENTS
ENERGY
ENERGY LEVELS
ENERGY RANGE
GAMMA RADIATION
IRRADIATION
ISOSPIN
LIFETIME
MEASURED VALUES
NUCLEAR REACTIONS
NUCLEI
PARITY
PHOSPHORUS 30
PHOTONS
PHYSICS
PROTON BEAMS
PULSE ANALYZERS
PULSES
Q- VALUE
QUANTUM MECHANICS
RESONANCE
SCINTILLATION COUNTERS
SELECTION RULES
SILICON 29
SODIUM IODIDES
SPECTRA
SPECTROMETERS
SPIN
TARGETS
TRANSIENTS