scholarly journals Energy Levels In 13N

1961 ◽  
Vol 14 (1) ◽  
pp. 196 ◽  
Author(s):  
VR McKenna ◽  
AM Baxter ◽  
GG Shute
Keyword(s):  
Elastic Scattering ◽  
Level Scheme ◽  
Energy Levels ◽  
Mirror Nucleus

The latest tabulation of energy levels in 13N (Ajzenberg-Selove and Lauritsen 1959) shows that there is a region from 8 �08 to 22�7 MeV which previously has been inaccessible to thorough investigation. Since the mirror nucleus, 130, has been thoroughly investigated and shows a well-defined level scheme in this region, it was decided to make a search for similar levels of the 13N nucleus in the excitation range 6� 5-12 . 5 MeV in this laboratory by means of elastic scattering of protons from 120.

Energy levels in 16N from 15N(n, n)15N elastic scattering

1962 ◽  
Vol 32 ◽  
pp. 470-481 ◽  
Author(s):  
C.P. Sikkema
Keyword(s):  
Elastic Scattering ◽  
Energy Levels

Energy Levels ofN14from the Elastic Scattering ofαParticles byB10

1973 ◽  
Vol 8 (3) ◽  
pp. 972-977 ◽  
Author(s):  
T. Mo ◽  
H. R. Weller
Keyword(s):  
Elastic Scattering ◽  
Energy Levels

Energy levels of 19F from R-matrix analysis of elastic scattering of α-particles by 15N

1972 ◽  
Vol 198 (1) ◽  
pp. 153-160 ◽  
Author(s):  
T. Mo ◽  
H.R. Weller
Keyword(s):  
Elastic Scattering ◽  
Energy Levels ◽  
Matrix Analysis ◽  
R Matrix ◽  
Α Particles

Extensions to the spark spectra of zinc. I. Zinc II and zinc IV

1968 ◽  
Vol 46 (10) ◽  
pp. 1241-1251 ◽  
Author(s):  
A. M. Crooker ◽  
K. A. Dick
Keyword(s):  
Energy Level ◽  
Ground State ◽  
Level Scheme ◽  
Energy Levels ◽  
Spectral Lines ◽  
Energy Level Scheme ◽  
New Energy ◽  
Ground State Doublet

The spectrum of Zn II has been extended to complete the configuration 3d94s(3D)4p′ and 3d94s(1D)4p″. The configurations 3d109f, 3d1010f, and 3d94s(3D)5s′ have been added and a number of levels of the configurations 3d94s(3D)4d′, 3d94s(1D)4d″, and 3d94s(3D)6s′ have been tentatively established. Our list of Zn II lines contains 363 classified lines.Improved wavelength measurements have necessitated a revision of our earlier report on the spectrum of Zn IV. All the energy levels have been shifted slightly with respect to the ground state doublet 3d92D. In addition, 3 of 17 even levels and 10 of 43 odd levels have been changed. The new energy-level scheme results in the classification of 329 spectral lines as compared with 200 lines in the previous report.

Lifetimes and decay modes of energy levels in 25Mg

1968 ◽  
Vol 46 (18) ◽  
pp. 2039-2053 ◽  
Author(s):  
J. F. Sharpey-Schafer ◽  
R. W. Ollerhead ◽  
A. J. Ferguson ◽  
A. E. Litherland
Keyword(s):  
Gamma Rays ◽  
Doppler Shift ◽  
Energy Levels ◽  
Branching Ratios ◽  
Collective Model ◽  
Incident Proton ◽  
Crystal Spectrometer ◽  
Decay Modes ◽  
Mirror Nucleus ◽  
Doppler Shift Attenuation

Lifetimes of energy levels in 25Mg have been measured using the Doppler-shift attenuation method. The levels were exicted by the 25Mg(p, p′γ) reaction with incident proton energies between 3.8 and 7.0 MeV. The gamma rays were detected in a three-crystal spectrometer consisting of a 40 cm3 Ge(Li) detector surrounded by a large NaI(Tl) crystal in the form of a split annulus. Mean lifetimes found, given in fs, are: τ(1611-keV level) = [Formula: see text], τ(1962) = [Formula: see text], τ(2565) = 59 ± 26, τ(2736) = 288 ± 20, τ(2803) = 27 ± 6, τ(3399) = 33 ± 19, τ(3408) < 20, τ(3903) < 20, τ(3969) = 24 ± 11, τ(4055) = 53 ± 10, and τ(5005) < 26. The decay modes and branching ratios of levels up to 4055-keV excitation are given. The results are compared with the mirror nucleus 25Al and discussed in terms of the collective model.

The Decay of 151Pm to Levels in 151Sm

1973 ◽  
Vol 51 (18) ◽  
pp. 1978-1999 ◽  
Author(s):  
W. B. Cook ◽  
J. C. Waddington ◽  
D. G. Burke ◽  
D. E. Nelson
Keyword(s):  
High Resolution ◽  
Level Scheme ◽  
Gamma Ray ◽  
Energy Levels ◽  
Selection Rules ◽  
Spin Parity ◽  
Coincidence Data ◽  
Parameter Configuration ◽  
Two Parameter

The energy levels of 151Sm have been investigated through a study of the decay of 28.4 h 151Pm. Singles gamma-ray spectra were obtained with high resolution Ge(Li) detectors having volumes of 0.9 and 12 cm3. Two Ge(Li) coincidence spectrometers (37 cm3 – 50 cm3 and 0.9 cm3 – 50 cm3) operated in a two-parameter configuration (4096 × 4096) were employed in collecting coincidence data. Two hundred and seventeen transitions have been incorporated into a level scheme involving 39 levels in 151Sm. On the basis of beta and gamma selection rules, spin–parity assignments have been suggested for most of the levels.

scholarly journals SPECTROSCOPY OF THE UNBOUND NUCLEUS 18Na

2011 ◽  
Vol 20 (04) ◽  
pp. 971-975 ◽  
Author(s):  
M. ASSIÉ ◽  
F. DE OLIVEIRA SANTOS ◽  
F. DE GRANCEY ◽  
L. ACHOURI ◽  
J. ALCANTARA-NUNEZ ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Mirror Nucleus ◽  
Intermediate Nucleus ◽  
Spectroscopic Information ◽  
Proton Radioactivity

The unbound nucleus 18 Na , the intermediate nucleus in the two-proton radioactivity of 19 Mg , is studied through the resonant elastic scattering 17 Ne ( p ,17 Ne ) p . The spectroscopic information obtained in this experiment is discussed and put in perspective with previous measurements and the structure of the mirror nucleus 18 N .

Energy levels of excited in the decay of the 94Tcm,g isomeric pair

1969 ◽  
Vol 47 (9) ◽  
pp. 995-1003 ◽  
Author(s):  
J. Barrette ◽  
A. Boutard ◽  
S. Monaro
Keyword(s):  
Solid State ◽  
Excited States ◽  
Gamma Rays ◽  
Level Scheme ◽  
Coulomb Excitation ◽  
Energy Levels ◽  
Isomeric Pair ◽  
Solid State Detectors ◽  
Γ Ray ◽  
Type Detector

The γ-ray spectra resulting from the decay of the 94Tcm,g isomeric pair to the excited states of 94Mo have been investigated using Ge(Li) solid state detectors. Gamma rays (relative intensities are in parentheses) of 871.05(100); 993.19(2.35); 1196.4(0.80); 1522.1 (4.80); 1868.68(6.10); 2393.2(0.50); 2529.8(0.33); 2740.1(3.74); 3129.1(1.47); 3512.5(0.06); 3793.1(0.05); 3892.7(0.016); plus several other weak lines have been observed in the decay of 94Tcm(52 min). Gamma rays (relative intensities are in parentheses) of 449.2(3.3); 532.1(2.35); 702.67(99.7); 742.3(1.21); 849.74(95.8); 871.05(100); 961.10(7.6); 1509.3(0.68); 1592.1(2.25); 1765.6(0.29) have been detected in the decay of 94Tcg(5 h). To investigate this latter activity a hollow coaxial Ge(Li) spectrometer was also used as a well-type detector in order to obtain sum spectra of coincident gamma rays. The overall results obtained from this study allows construction of a level scheme of 94Mo which compares fairly well with previous investigations and removes some inconsistencies shown in Coulomb excitation measurements.

Analysis of Elastic Scattering of Protons by O18 and the Energy Levels of F19

1962 ◽  
Vol 17 (4) ◽  
pp. 604-620 ◽  
Author(s):  
Kohsuke Yagi
Keyword(s):  
Elastic Scattering ◽  
Energy Levels

scholarly journals Study of (p,n) Reaction in a Wide Energy Range

2019 ◽  
pp. 1-18
Author(s):  
N. A. El-Nohy ◽  
M. N. El-Hammamy ◽  
S. Diab ◽  
A. M. El-Shinawy
Keyword(s):  
Elastic Scattering ◽  
Optical Model ◽  
Energy Levels ◽  
Model Potential ◽  
Wide Energy Range ◽  
Microscopic Approach ◽  
Density Dependent ◽  
Wide Range ◽  
Optical Model Potential ◽  
Wide Energy

In this paper, the quasi-elastic scattering (p, n) reactions are studied for a wide range of target nuclei 13C, 14C, 48Ca, 90Zr and 208Pb and different incident energies (35-160 MeV). The phenomenological Optical model potential and density independent approaches are used for these calculations in comparison with density dependent semi-microscopic approach. The density dependent parameters are modified to achieve the best calculations for many targets at different energy levels.

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