Levels in $sup 113$ $sup 115$In as seen by the Coulomb excitation and (HI,xn) reactions

Thesis/Dissertation · Mon Dec 01 00:00:00 EST 1975

OSTI ID:4038912

Tuttle, III, W K

Having one proton hole in a major proton shell closing at Z = 50 makes the odd mass indium nuclei prime candidates for description by the weak coupling model. The purpose of the Coulomb excitation study was to update the information on $sup 115$In and to do a thorough study of $sup 113$In for which little information is known. In the (HI,xn) study, it was hoped that the deformed rotation band could be found. For the Coulomb excitation measurements, four types of experiments were performed. First, using beams of 9.4, 10.0, and 10.6 MeV $sup 4$He ions, $gamma$-ray yields were taken with an angle between the beam and the detector, theta, of 55$sup 0$. With these data one can confirm existing level diagrams, look for new transitions, and measure B(E2)'s and branching ratios. Secondly, $gamma$$-$$gamma$ coincidence measurements were performed with a 10.6 MeV $sup 4$He beam to confirm the level diagrams and search for new transitions. Next, angular distributions were taken for a 10.0 MeV $sup 4$He ion beam to determine spins, parities and mixing ratios. Finally, a beam of $sup 16$O ions was used to determine the lifetimes of states whose decaying $gamma$ rays showed Doppler broadening. For the $sup 110$Pd($sup 6$Li,3n)$sup 113$In measurements, two types of experiments were performed, both with a 24 MeV $sup 6$Li beam. First $gamma$$-$$gamma$ coincidences were performed to find new transitions feeding those states previously known. Next, angular distributions were performed to confirm old spin assignments and to establish a basis for assignments to new levels observed. (auth)

• Research Organization: Tennessee Univ., Knoxville (USA)
• NSA Number: NSA-33-024801
• OSTI ID: 4038912
• Report Number(s): TID-26945
• Resource Relation: Other Information: Thesis. Orig. Receipt Date: 30-JUN-76
• Country of Publication: United States
• Language: English

Related Subjects

N68731* -Physics (Nuclear
Experimental)-Nuclear Properties & Reactions
90 <= A <= 149-Energy Levels & Transitions
N68751 -Physics (Nuclear
Experimental)-Nuclear Properties & Reactions
90 <= A <= 149-Nuclear Reactions & Scattering
642803*
*INDIUM 113
ALPHA REACTIONS- ANGULAR DISTRIBUTION- COULOMB EXCITATION- INELASTIC SCATTERING
COULOMB EXCITATION- ENERGY-LEVEL TRANSITIONS- INELASTIC SCATTERING- LIFETIME- OXYGEN 16 REACTIONS
LITHIUM 6 REACTIONS- NEUTRONS- PALLADIUM 110
WEAK-COUPLING MODEL BRANCHING RATIO- ENERGY LEVELS- ENERGY-LEVEL TRANSITIONS- MIXING RATIO- PARITY- SPIN