STUDY OF THE 31P(n, γ)32P REACTION

1967 ◽  
Vol 45 (9) ◽  
pp. 3039-3054 ◽  
Author(s):  
H. Lycklama ◽  
T. J. Kennett
Keyword(s):  
Gamma Radiation ◽  
Degrees Of Freedom ◽  
Neutron Separation Energy ◽  
Separation Energy ◽  
Weak Correlation ◽  
Average Precision

A total of 64 transitions were observed with an average precision of 2 keV in studying the gamma radiation from the 31P(n, γ)32P reaction using a Ge(Li) spectrometer. The neutron separation energy was measured to be 7 936 ± 1 keV. Comparison with (d, p) results indicates only a weak correlation between (n, γ) and (d, p) reduced widths. The reduced radiation widths follow a x2 distribution of ~2 degrees of freedom.

Study of the reaction 35Cl(n,γ)36Cl

1970 ◽  
Vol 48 (10) ◽  
pp. 1130-1139 ◽  
Author(s):  
L. B. Hughes ◽  
T. J. Kennett
Keyword(s):  
Gamma Radiation ◽  
Gamma Ray ◽  
Neutron Separation Energy ◽  
Transition Rates ◽  
Separation Energy ◽  
Average Precision ◽  
The Absolute ◽  
Reaction 35Cl

The gamma radiation from the 35Cl(n,γ)36Cl reaction has been studied using a Ge(Li) spectrometer. A total of 130 gamma-ray transitions was observed with an average precision of 2 keV. The neutron separation energy was found to be 8580.6 ± 1.0 keV. An examination of the partial radiative widths revealed that the ratio of E1 to M1 radiation agreed well with the ratio obtained from other measurements of E1 and M1 transition rates but the absolute values were enhanced by a factor of 10.

A STUDY OF THE GAMMA RADIATION FOLLOWING THERMAL NEUTRON CAPTURE BY SILICON

1967 ◽  
Vol 45 (5) ◽  
pp. 1871-1884 ◽  
Author(s):  
H. Lycklama ◽  
L. B. Hughes ◽  
T. J. Kennett
Keyword(s):  
Gamma Radiation ◽  
Thermal Neutron ◽  
Single Particle ◽  
Neutron Capture ◽  
Decay Scheme ◽  
Time Correlation ◽  
Neutron Separation Energy ◽  
Thermal Neutron Capture ◽  
Separation Energy

A study of the gamma radiation following thermal neutron capture by natural silicon has been conducted. Precise energy measurements were obtained using a Ge(Li) counter and a decay scheme was constructed using the time correlation results obtained with a Ge(Li)–NaI(Tl) spectrometer. The neutron separation energy was found to be 8 474 ± 1 keV for 29Si. An examination of the reduced radiation widths revealed that, while E1 and E2 radiation agreed well with the single-particle estimate, the M1 strength was hindered by a factor of from 10 to 100.

Binding Energies in Zr from (d, p) and (d, t) Reactions

1979 ◽  
Vol 34 (12) ◽  
pp. 1536-1537
Author(s):  
T. Borello-Lewin ◽  
O. Dietzsch
Keyword(s):  
Atomic Mass ◽  
Previous Measurement ◽  
Binding Energies ◽  
Neutron Separation Energy ◽  
Separation Energy ◽  
Standard Deviations ◽  
Q Values

Abstract Neutron separation energies in 91Zr, 92Zr, 93Zr and 95Zr were determined by measurements of relative Q-values for (d, p) reactions on Zr isotopes. A comparison is made with separation energies derived from a previous measurement of (d, t) reaction Q-values. The neutron separation energy in 95Zr disagrees by three standard deviations with the adjusted value in the 1977 Atomic Mass Evaluation.

Determination of single neutron spectroscopic factor of doubly shell closed, neutron shell closed and neutron-rich nuclei through (d,p) reaction

2020 ◽  
Vol 29 (06) ◽  
pp. 2050030
Author(s):  
A. Vinayak ◽  
M. M. Hosamani ◽  
P. N. Patil ◽  
N. M. Badiger
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Spectroscopic Factor ◽  
Center Of Mass ◽  
Recoil Nucleus ◽  
Projectile Energy ◽  
Neutron Separation Energy ◽  
Differential Cross Sections ◽  
Separation Energy ◽  
Neutron Shell

The spectroscopic factor (SF) of doubly-magic nuclei, neutron shell closed and neutron-rich nuclei has been determined through ([Formula: see text], [Formula: see text]) reaction in the projectile energy range from 3 to 26[Formula: see text]MeV. The theoretical angular differential cross-sections of ([Formula: see text], [Formula: see text] reactions in scattering center-of-mass angles from [Formula: see text] to [Formula: see text] have been calculated using FRESCO and NRV-DWUCK5 codes. By comparing the theoretical angular differential cross-sections with available experimental angular differential cross-sections, the values of SF have been determined. The exponential increase of SF as a function of neutron separation energy normalized by spin of the recoil nuclei has been shown for the first time for doubly-magic nuclei. The similar type of trend has also been observed for neutron-rich as well as neutron shell closed nuclei as a function of neutron separation energy normalized by asymmetric factor of recoil nucleus. More experimental data are required to verify the trend predicted by this investigation.

scholarly journals RELATIVISTIC MEAN FIELD STUDY OF ISLANDS OF INVERSION IN NEUTRON-RICH Z = 17–23, 37–40 AND 60–64 NUCLEI

2013 ◽  
Vol 22 (04) ◽  
pp. 1350018 ◽  
Author(s):  
S. K. SINGH ◽  
S. MAHAPATRO ◽  
R. N. MISHRA
Keyword(s):  
Binding Energy ◽  
Periodic Table ◽  
Mean Field ◽  
Quadrupole Deformation ◽  
Neutron Separation Energy ◽  
Mean Square ◽  
Separation Energy ◽  
Relativistic Mean Field ◽  
Field Formalism ◽  
Analysis Of Binding Energy

We study the extremely neutron-rich nuclei for Z = 17–23, 37–40 and 60–64 regions of the periodic table by using axially deformed relativistic mean field formalism with NL3* parametrization. Based on the analysis of binding energy, two neutron separation energy, quadrupole deformation and root mean square radii, we emphasized the speciality of these considered regions which are recently predicted islands of inversion.

Photoexcitation of the Stable Tl Isotopes Below the Neutron Separation Energy

2014 ◽  
Vol 45 (2) ◽  
pp. 193 ◽  
Author(s):  
N. Benouaret ◽  
J. Beller ◽  
J. Isaak ◽  
J.H. Kelley ◽  
H. Pai ◽  
...  
Keyword(s):  
Neutron Separation Energy ◽  
Separation Energy

scholarly journals Electromagnetic dipole strength of136Ba below the neutron separation energy

2012 ◽  
Vol 86 (1) ◽  
Author(s):  
R. Massarczyk ◽  
R. Schwengner ◽  
F. Dönau ◽  
E. Litvinova ◽  
G. Rusev ◽  
...  
Keyword(s):  
Neutron Separation Energy ◽  
Separation Energy ◽  
Dipole Strength

THE 51V(n, γ)52V REACTION

1967 ◽  
Vol 45 (8) ◽  
pp. 2683-2694 ◽  
Author(s):  
N. P. Archer ◽  
T. J. Kennett
Keyword(s):  
Gamma Radiation ◽  
Thermal Neutron ◽  
Ground State ◽  
Neutron Capture ◽  
Decay Scheme ◽  
Thermal Neutron Capture ◽  
Separation Energy ◽  
Direct Capture ◽  
Coincidence Measurements

The gamma radiation following thermal neutron capture by vanadium has been studied using a Ge(Li) detector. A separation energy of 7 311 ± 2 keV was determined and the ground-state triplet was observed, confirming levels of 17 and 23 keV. Coincidence measurements were used to assist in the construction of a decay scheme which includes 97% of the total observed intensity. The agreement with (d, p) measurements is very good and permits one to conclude that essentially all of the observed transitions are E1. The lack of any correlation between reduced radiation widths and stripping strengths suggests the absence of direct capture.

scholarly journals Constraints on two-neutron separation energy in the Borromean 22C nucleus

2011 ◽  
Vol 697 (1) ◽  
pp. 90-93 ◽  
Author(s):  
M.T. Yamashita ◽  
R.S. Marques de Carvalho ◽  
T. Frederico ◽  
Lauro Tomio
Keyword(s):  
Neutron Separation Energy ◽  
Separation Energy
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