ELECTRONIC AND NUCLEAR PROPERTIES OF Er$sup 171$, Tm$sup 171$, AND Tb$sup 161$ (thesis)

Technical Report · Fri Mar 29 04:00:00 EST 1963

OSTI ID:4670293

Maleh, I

The atomic-beam magnetic resonance flop-in technique was used to measure the angular momentum of the electrons and nuclei, electric and magnetic hyperfine interaction constants, and the magnetic moments of the electrons and nuclei. The nuclear magnetic moment and nuclear quadrupole moment were calculated from the Fermi-Segre- relation and from the ( 1/3 ) value by using other researchers' published values. All of these nuclei are in the collective model region and can be described by suitable Nilsson state assignments as indicated above. The quadrupole moment of Er/sup 171/ yields a deformation of found in the rare-earth region; the nuclear magnetic moment of Er/sup 171/ is less than collective-model predictions (perhaps due to uncertainty in g/sub R/). Assuming a reasonable deformation factor for Tm/sup 171/ the collective-model prediction for its nuclear magnetic moment agrees remarkably well with the measured value. The spin and resulting Nilsson state assignment for Tb/sup 161/ agrees with that assumed from its decay scheme. A detailed description of the technique and a theoretical analysis of each result are presented. 40 references. (auth)

• Research Organization: California. Univ., Berkeley. Lawrence Radiation Lab.
• DOE Contract Number: W-7405-ENG-48
• NSA Number: NSA-17-031411
• OSTI ID: 4670293
• Report Number(s): UCRL-10747
• Country of Publication: United States
• Language: English

Related Subjects

ANGULAR MOMENTUM
COLLECTIVE MODEL
FERMI-SEGRE RELATION
MOMENTUM
NILSSON MODEL
NUCLEAR MODELS
PHYSICS