Analytical comparison between (3) and (5) models of the Bohr Hamiltonian.

The 3-D Bohr-Mottelson Hamiltonian for -rigid prolate isotopes is solved via inverse square potential having only one free parameter, . The exact form of the wave functions and the energy spectra are obtained as a function of the free parameter that determines the changes in the spectra ratios and the . The solutions are compared with the model and some new set of equations that show the relationships between the two models are stated.

Heavy metal contamination of selected mining fields in North-Central Nigeria.

This study evaluates the causes, concentration and the associated health risks of selected heavy metals (HMs) in soil samples collected from beryllium and gold mining fields in Nigeria. The samples of soil were collected manually and analysed by means of Atomic Absorption Spectrophotometry (AAS). Seventy-two (72) samples were analysed which presented varying degrees of concentration of the selected HMs.

Soil-to-plant transfer of K, U and Th and radiological risk assessment of selected mining sites in Nigeria.

One of the major route through which humans are exposed to ionizing radiation is via food chain, which is consequent of soil-to-plant transfer of radionuclides. This work reported the activity concentrations of K, U and Th in samples of water, soil and guinea corn grains collected from Beryllium and Gold mining sites in Kwara, Nigeria. In-situ measurements at approximately 1 m in the air was carried out using a well-calibrated portable Gamma Spectrometer (Super Spec RS-125), while the soil, water and the guinea corn samples were analyzed using a '3 × 3' inch lead-shielded NaI (Tl) detector.

Radioactivity levels and transfer factor for granite mining field in Asa, North-central Nigeria.

Natural radioactivity measurement and dose assessment are important aspects of radiation protection. The goal of this study is to validate the previous results obtained from the in-situ measurements in the study area in order to ascertain the level of radiation hazards to the populaces living around the mining site.A3 × 3-inch lead-shielded NaI(Tl) detector was used to measure the activity concentrations of and in soil, water and guinea corn grain samples collected from a granite mining field in Asa, Kwara State, North-central Nigeria.

Dataset on radioactivity measurement of Beryllium mining field in Ifelodun and gold mining field in Moro, Kwara State, North-central Nigeria.

This work contains dataset of measured activity concentrations of and gamma doses at 1 m above the ground level over Beryllium and Gold mining fields in Ifelodun and Moro respectively, Kwara State, North-central Nigeria. A well calibrated Super-Spec (RS-125) gamma spectrometer was used to carry out these measurements. Measurements were carried out manually in 72 randomly selected sample points.

Natural radionuclides and radiological risk assessment of granite mining field in Asa, North-central Nigeria.

In this study, a well calibrated Super-Spec (RS-125) gamma spectrometer was used to measure the activity concentrations of and gamma doses rate at 1 m above the ground level over a granite mining field in Asa, Kwara State, North-central Nigeria. Measurements were carried out in 50 randomly selected sample points. The overall mean activity concentrations of and gamma dose are 570.