Angular Distribution Studies for 65Zn Nuclei from 63Cu (α, pnγ) Reaction Using Constant Statistical Tensor, Least Square Fitting and σ/J Methods

Multiple mixing ratios (δ-values) have been calculated for high-spin states excited in 29𝐶𝑢 63 (α,pnγ) 𝑍𝑛 30 65 in present work using constant statistical tensor (CST), least square fitting (LSF) and σ/J methods together with experimental values reported for such γ-transition the good agreement for (δ-values) calculated in these three methods confirms its validity to calculate the (δ-values) for γ-transition.

CALCULATION OF MULTIPLE MIXING RATIOS OF GAMMA RAYS FROM (_60^(142-150))Nd(n,n^ˊ )(_60^(142-150))Nd INTERACTION

In the current research, multiple mixing ratios of gamma -transitions of the energy levels isotopes populated in interaction are calculated using the constant statistical tensor (CST) method. The results obtained are, in general, in good agreement or consistent, within the experimental error, with the results published in the previously researches. Existing discrepancies result from inaccuracies in the experimental results of previous works. The current results confirm the validity of the constant statistical tenser method of calculating the values of mixing ratios and its predictability of errors in experimental results.

MULTIPLE MIXING RATIOS OF GAMMA RAY TRANSITIONS FROM (_60^(142- 150))Nd (n,n^ˊ γ) (_60^(142- 150))Nd REACTION USING a_2- RATIO METHOD

In the current work, the mixing ratios ( ) of gamma transitions were calculated from energy levels in the isotopes neodymium populated in the using the ratio method. We used the experimental coefficient ( ) for two γ-transitions from the initial state itself, the statistical tensor , associated with factor , would be the same for the two transitions. The results obtained are in good agreement or within the experimental error with -those previously published. And existing contradictions resulting from inaccuracies in the empirical results of previous work. The current results confirm that the method is used to calculate the values of mixing ratios and the feasibility of this method in predicting errors in experimental results.

Nuclear Spin-system Dynamics affected by Double Inhomogeneity under Multipulse Excitation in Statistical Tensor Formalism

New coherent transient effects formed due to double inhomogeneity, i.e. inhomogeneity in the main precession frequency (Larmor inhomogeneous broadening) and of the rf amplitude expressed in frequency units (Rabi inhomogeneous broadening), in˚uencing the nuclear spin- system dynamics during rf pulse excitation, have been predicted and investigated by use of the method of concatenation of perturbation factors (CPF) in statistical tensors (ST) formalism. Multiple pulse excitation under double inhomogeneity is examined when the repetition period of a pulse sequence is shorter than T1.