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

2019 ◽  
Vol 7 (8) ◽  
pp. 39-50
Author(s):  
Taghreed Abdull-jabbar Younis ◽  
Adel Kamel Shbeeb
Keyword(s):  
Gamma Rays ◽  
Experimental Error ◽  
Energy Levels ◽  
Experimental Results ◽  
Mixing Ratios ◽  
Multiple Mixing ◽  
Statistical Tensor ◽  
Gamma Transitions ◽  
Good Agreement

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.

scholarly journals 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

2019 ◽  
Vol 7 (8) ◽  
pp. 197-207
Author(s):  
Taghreed Abdull Jabbar Younis
Keyword(s):  
Experimental Error ◽  
Gamma Ray ◽  
Energy Levels ◽  
Ratio Method ◽  
Initial State ◽  
Mixing Ratios ◽  
Multiple Mixing ◽  
Statistical Tensor ◽  
Gamma Transitions ◽  
Good Agreement

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.

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

2021 ◽  
Vol 19 (1) ◽  
pp. 30-37
Author(s):  
Taghreed A. Younis
Keyword(s):  
Least Square ◽  
Spin States ◽  
Least Square Fitting ◽  
Mixing Ratios ◽  
High Spin States ◽  
Multiple Mixing ◽  
Statistical Tensor ◽  
Distribution Studies ◽  
Experimental Values ◽  
Good Agreement

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.

Investigation of some even-even selenium isotopes within the interacting boson model-2

Open Physics ◽  
2008 ◽  
Vol 6 (3) ◽  
Author(s):  
Mahmut Böyükata ◽  
İhsan Uluer
Keyword(s):  
Transition Probabilities ◽  
Energy Levels ◽  
Mass Region ◽  
Experimental Results ◽  
Interacting Boson Model ◽  
Electromagnetic Transition ◽  
Boson Model ◽  
Selenium Isotopes ◽  
Good Agreement

AbstractThe even-even Selenium isotopes in the A∼80 mass region and the general features of its structure have been investigated within the framework of the interacting boson model-2. The neutron proton version of the model has been applied to the Se (A=74 to 80) isotopes with emphasis on the description of the 01+, 21+, 02+, 22+ and 41+ states. The energy levels, B(E2)and B(M1)electromagnetic transition probabilities were calculated. The results of these calculations were compared with previous experimental results and were shown to be in good agreement.

Study on the testing of the accelerated point of the floating fiber in the roller drafting process with an improved method

2021 ◽  
pp. 004051752110308
Author(s):  
Yuanying Shen ◽  
Jie Ni ◽  
Jianping Yang ◽  
Chongwen Yu
Keyword(s):  
Standard Deviation ◽  
Experimental Error ◽  
Experimental Results ◽  
Improved Method ◽  
Dynamic Motion ◽  
Yarn Quality ◽  
Drawing Frame ◽  
Good Agreement

The dynamic motion of floating fibers in the drafting process, which can be characterized by fiber accelerated points, has an important effect on the sliver or yarn quality. In this study, the fiber accelerated point during the roller drafting process has been tested with an improved method. In this method, tracer fibers and standard tracer yarns of known length were embedded into the sliver in groups. By adjusting the length and fineness of the standard tracer yarns, it was possible to determine the nip line of the front roller dynamically. Therefore, the fiber accelerated points can be obtained in a continuous drafting process without an external sensor, which is simpler and more convenient, and avoids the experimental error caused by the drawing frame shutdown during the experiment. Based on this method, the effects of the drafting parameters and sliver properties on the fiber accelerated point in the roller drafting process have been investigated. In addition, the coefficient of variance of the sliver ( CVFAP) caused by the fiber accelerated point variation during the drafting process was also calculated. A comparison has been made between CVFAP and the standard deviation of the fiber accelerated points. It is found that a fairly good agreement between these two is seen, and this agreement can also evidence the accuracy of experimental results about the fiber acceleration point.

Decay of 101Mo and 101Tc

1972 ◽  
Vol 50 (17) ◽  
pp. 1957-1977 ◽  
Author(s):  
W. B. Cook ◽  
M. W. Johns
Keyword(s):  
High Resolution ◽  
Gamma Rays ◽  
Gamma Ray ◽  
Energy Levels ◽  
Spin Parity ◽  
Coincidence Data ◽  
Parameter Configuration ◽  
Coincidence Spectrometer ◽  
Gamma Transitions ◽  
Two Parameter

The energy levels of 101Tc and 101Ru have been investigated through a study of the decays of 14.6 min 101Mo and 14.0 min 101Tc. Singles gamma-ray spectra were obtained with high-resolution Ge(Li) detectors having volumes of 0.8 cm3 and 12 cm3. A 36 cm3 Ge(Li)–40 cm3 Ge(Li) coincidence spectrometer operated in a two-parameter configuration (4096 × 4096) was employed in collecting coincidence data. More than 180 gamma transitions have been observed in the two decays: 152 are definitely assigned to the decay of 101Mo, 25 to the decay of 101Tc. These gamma rays have been incorporated into level schemes involving 45 levels in 101Tc and 10 levels in 101Ru. On the basis of beta and gamma selection rules, spin–parity assignments have been suggested for many of the levels.

Radiative capture of neutrons by the 5.2 eV resonance in 109Ag

1969 ◽  
Vol 47 (10) ◽  
pp. 1133-1142 ◽  
Author(s):  
H. Ing ◽  
J. J. Gameson ◽  
J. D. King ◽  
H. W. Taylor
Keyword(s):  
Gamma Rays ◽  
Radiative Capture ◽  
Pulse Height ◽  
Thermal Neutrons ◽  
Pulse Height Analyzer ◽  
Gamma Transitions ◽  
Good Agreement

The reaction 109Ag(n,γ)110Ag has been studied through the capture of neutrons by the 5.2 eV resonance in 109Ag. The gamma rays were observed with a 33 cm3 Ge(Li) detector and a 2048-channel pulse-height analyzer. A level diagram spanning the range 0-2 MeV is proposed for 110Ag and compared with the level diagram based on the gamma transitions produced by capture of thermal neutrons. The distribution of partial radiative widths was obtained and was found to be in good agreement with the Porter–Thomas distribution.

The electronic structure and magnetic properties of uranyl-like ions II. Plutonyl

1956 ◽  
Vol 238 (1212) ◽  
pp. 31-45 ◽  
Keyword(s):  
Aqueous Solution ◽  
Magnetic Properties ◽  
Absorption Spectrum ◽  
Electronic Structure ◽  
Energy Levels ◽  
Electronic Configuration ◽  
Resonance Absorption ◽  
Experimental Results ◽  
Microwave Resonance ◽  
Good Agreement

The electronic configuration and bonding in (PuO 2 ) 2+ are considered. The calculated energy levels can be correlated satisfactorily with the absorption spectrum of (PuO 2 ) 2+ in aqueous solution by a plausible choice of numerical parameters. The microwave resonance absorption and paramagnetic susceptibility are derived on the basis of the model, and are in good agreement with experimental results.

A Study of Levels in 25Mg via the 22Ne(α, nγ)25Mg Reaction

1972 ◽  
Vol 50 (13) ◽  
pp. 1539-1553 ◽  
Author(s):  
D. C. Kean ◽  
R. W. Ollerhead
Keyword(s):  
Gamma Rays ◽  
Ground State ◽  
Branching Ratios ◽  
Angular Distributions ◽  
Rotational Model ◽  
Mixing Ratios ◽  
Decay Properties ◽  
Decay Branch ◽  
Band Mixing ◽  
Good Agreement

Levels in the nucleus 25Mg have been studied by measurement of the angular distributions and polarization of gamma rays from the 22Ne(α, nγ)25Mg reaction. Information regarding spins, parities, mixing ratios, and branching ratios has been obtained for the levels between 2.7 and 4.7 MeV excitation. Spin and parity assignments of 5/2+ and 7/2− have been made to the levels at 3.90 and 3.97 MeV. Mixing ratios have been determined or restricted for most of the observed transitions. The decay branch of the 3.40 MeV level to the ground state is found to be considerably stronger than previously reported, bringing the decay properties of this level into good agreement with the predictions of the simple rotational model. The significance of the results within the framework of the rotational model is discussed. There is evidence for considerable band mixing in levels belonging to the second Kπ = 1/2+ and the Kπ = 1/2− bands.

scholarly journals Wavelengths, transition probabilities, and oscillator strengths for M-shell transitions in tungsten ions with partially filled 3p subshell

2017 ◽  
Vol 95 (3) ◽  
pp. 283-290 ◽  
Author(s):  
Min Xu ◽  
Anying Yan ◽  
Shuang Wu ◽  
Feng Hu ◽  
Xiangfu Li
Keyword(s):  
Excited States ◽  
Electric Dipole ◽  
Transition Probabilities ◽  
Energy Levels ◽  
Experimental Results ◽  
Oscillator Strengths ◽  
Calculated Energy ◽  
Good Agreement

Wavelengths, transition probabilities, and oscillator strengths have been calculated for M-shell electric dipole (E1) transitions in Al-like W61+ through Cl-like W57+, with partially filled 3p subshell. The fully relativistic multiconfiguration Dirac–Fock (MCDF) method, taking quantum electrodynamical effect and Breit correction into account, was used in the calculations. Calculated energy levels of M-shell excited states in Al-like through Cl-like W ions from the method were compared with some available theoretical and experimental results, and good agreement with them was achieved.

Energy Levels and Electromagnetic Transition of 90-94mo Nuclei Using Ibm-1

2020 ◽  
pp. 149-152
Keyword(s):  
Experimental Data ◽  
Transition Probability ◽  
Energy Levels ◽  
Dynamical Symmetry ◽  
Interacting Boson Model ◽  
Excitation Energies ◽  
Electromagnetic Transition ◽  
Boson Model ◽  
Energy States ◽  
Good Agreement

The energy states for the J , b , ɤ bands and electromagnetic transitions B (E2) values for even – even molybdenum 90 – 94 Mo nuclei are calculated in the present work of "the interacting boson model (IBM-1)" . The parameters of the equation of IBM-1 Hamiltonian are determined which yield the best excellent suit the experimental energy states . The positive parity of energy states are obtained by using IBS1. for program for even 90 – 94 Mo isotopes with bosons number 5 , 4 and 5 respectively. The" reduced transition probability B(E2)" of these neuclei are calculated and compared with the experimental data . The ratio of the excitation energies of the 41+ to 21+ states ( R4/2) are also calculated . The calculated and experimental (R4/2) values showed that the 90 – 94 Mo nuclei have the vibrational dynamical symmetry U(5). Good agreement was found from comparison between the calculated energy states and electric quadruple probabilities B(E2) transition of the 90–94Mo isotopes with the experimental data .

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