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High angular momentum states in $\sp{79}$Rb were populated via the $\sp{63}$Cu($\sp{19}$F,2pn)$\sp{79}$Rb $\sp{65}$Cu($\sp{18}$O,4n)$\sp{79}$Rb reactions. The 65 MeV $\sp{19}$F and 65 MeV $\sp{18}$O beams were provided by the Florida State University FN Tandem accelerator. Prompt $\gamma$-$\gamma$ coincidences were measured for both reactions. Two additional $\gamma$ cascades have been assigned to $\sp{79}$Rb, including a new high-excitation structure dominated by dipole transitions. Firm spin assignments were made for the first time for a number of states by means of directional correlation ratios and an angular distribution measurement using the $\sp{63}$Cu($\sp{19}$F,2pn) reaction. The Doppler-shift attenuation method was used to determine lifetimes for states and their respective side-feeding times in both the yrast positive-parity and yrast negative-parity states. Transition quadrupole moments were deduced from the transition strengths and compared with those predicted by Woods-Saxon cranking calculations. The energy spacings and mixing ratios were compared with particle-rotor calculations. A recoil distance apparatus has also been developed as part of this project. Software has been written to analyze the results from a $\sp{\rm nat}$Ni($\sp{19}$F,2pn)$\sp{74}$Br reaction. The 62 MeV $\sp{19}$F beam was also provided by the FN Tandem accelerator. Singles events were taken for a number of drift distances. Lifetimes of states in $\sp{74}$Br have been measured and compared with previously known values with excellent agreement. / Source: Dissertation Abstracts International, Volume: 54-12, Section: B, page: 6268. / Major Professor: Samuel L. Tabor. / Thesis (Ph.D.)--The Florida State University, 1993.

Source: Dissertation Abstracts International, Volume: 30-12, Section: B, page: 5417. / Thesis (Ph.D.)--The Florida State University, 1969.

Source: Dissertation Abstracts International, Volume: 35-02, Section: B, page: 0724. / Thesis (Ph.D.)--The Florida State University, 1974.

Source: Dissertation Abstracts International, Volume: 35-09, Section: B, page: 4384. / Thesis (Ph.D.)--The Florida State University, 1974.

Source: Dissertation Abstracts International, Volume: 30-12, Section: B, page: 5416. / Thesis (Ph.D.)--The Florida State University, 1969.

<p> Paramagnetic cations serve as useful and efficient NMR probes of coordination environment and can also give insight into dynamics on the millisecond timescale. In an effort to extend the powerful analytical techniques employed with the lanthanide series, work has been performed with small, doubly contained volumes of actinide cations. A series of novel fundamental magnetic susceptibility studies spanning all of the readily accessible actinide cations in the liquid phase is also reported. Variable temperature data collected as a probe of the ground electronic states of the cations is reported for a range of temperatures relevant in nuclear reprocessing. The effects of the counter anion in solution are discussed as they relate to softness and the apparent reduction in free electron character on the metal.</p>

The angular anisotropy, $ omega$, of individual fission products produced from the $ sp{238} rm U( sp{12}$C, f) 119.9 MeV incident heavy-ion induced fission reaction, was modelled in terms of the angular momentum, l, conferred upon the intermediate nucleus. Evidence of incomplete momentum transfer led to a model treating fission products as being the result of two fission inducing processes: complete fusion resulting in compound nucleus formation, and an $ alpha$-transfer incomplete fusion process. The average angular anisotropies for each of the two processes were calculated to be, $ omega sb{ rm CF}$ = 2.57, and $ omega sb alpha$ = 1.71, respectively, which fit well to the experimental data. A new method was developed to estimate the total kinetic energy release of heavy-ion fission events leading to individual fission products from the above reaction. The average total $ langle$E$ sb{ rm k}{ rangle} approx 195$ MeV calculated using the new method is consistent with other experimental data, and with theories regarding heavy-ion induced fission.

Radiolabeled compounds, cis-diammine-(1,1-cyclobutanedicarboxylato)-$\sp{\rm 193m}$Pt(II) (carboplatin) and dipyrrolidinedithiocarbamato-$\sp{212}$Pb(II) (Pb(PDC)$\sb2$) were synthesized in microscale quantities. High performance liquid chromatography (HPLC) techniques were employed as both a synthetic tool and mode of product analysis. The specific activities of the purified radiochemicals were in the gigabecquerel per mg range. This was adequate for radiobiological experiments and is several orders of magnitude higher than that required for tracer studies. The radionuclide $\sp{\rm 193m}$Pt with 4.3 day half-life emits numerous low energy Auger electrons by virtue of its 3-step isomeric decay essentially by internal conversion. The yields and energies of the electrons were calculated using Monte Carlo methods. This radionuclide was produced by the $\sp{192}$Pt(n,$\gamma)\sp{\rm 193m}$Pt reaction. Other avenues of production, $\sp{192}$Os($\alpha$,3n)$\sp{\rm 193m}$Pt, were also considered. The $\beta$ emitting $\sp{212}$Pb, which decays to $\alpha$ particle emitting daughters, was isolated from a $\sp{226}$Ra generator. The clonogenic survival of Chinese hamster V79 cells was investigated using both radiolabeled and nonradiolabeled forms of the compounds. The effects of the two types of ionizing radiation (Auger electrons and $\alpha$ particles), kinetics of cellular uptake and retention, and subcellular distribution of these compounds were studied. The dosimetry calculations were performed using the radiation spectra, biokinetics, and Medical Internal Radiation Dose (MIRD) formalism. The mean lethal values of dose (D$\sb{37}$) for the radiolabeled carboplatin and $\sp{212}$Pb(PDC)$\sb2$ were 0.453 grays and 0.85 grays, respectively. The values of relative biological effectiveness (RBE) were estimated to be about 8.8 for radiolabeled carboplatin and 4.6 (2.4 with recoil of the daughter nuclei included) for radiolabeled $\sp{212}$Pb(PDC)$\sb2.$ The results confirm the inadequacy of the current methods of dose calculation (MIRD) and International Commission on Radiation Units and Measurements (ICRU) and point to the potential usefulness of $\sp{\rm 193m}$Pt-carboplatin in chemo-Auger combination therapy of cancer.