AN ATOMIC MASS STUDY OF NUCLEAR SHELL STRUCTURE IN THE REGION 82 < n < 126

1954 ◽  
Vol 32 (1) ◽  
pp. 65-71 ◽  
Author(s):  
Benjamin G. Hogg ◽  
Henry E. Duckworth
Keyword(s):  
Shell Structure ◽  
Neutron Number ◽  
Atomic Mass ◽  
General Increase ◽  
Atomic Masses ◽  
Nuclear Stability ◽  
Nuclear Shell

A number of new atomic masses are reported in the region 82 < n < 126 and are used to study nuclear stability in this region. No stability effects associated with a particular neutron number are noticed but rather there is a broad general increase in stability between the 82 and 126 neutron shells.

AN ATOMIC MASS STUDY OF NUCLEAR SHELL STRUCTURE IN THE REGION AND

1953 ◽  
Vol 31 (6) ◽  
pp. 942-953 ◽  
Author(s):  
Benjamin G. Hogg ◽  
Henry E. Duckworth
Keyword(s):  
Shell Structure ◽  
Atomic Mass ◽  
Mass Effects ◽  
Mass Data ◽  
Nuclear Shell

New mass spectrographic masses are reported for some of the isotopes of gallium, germanium, arsenic, and selenium. These results are combined with previously reported atomic mass data in order to study atomic mass trends in the region [Formula: see text] and [Formula: see text]. The only pronounced mass effects which occur in this region are those associated with 28 and 50 nucleons. We have found no extra stability which can be associated with the filling of the f5/2, p3/2 and p1/2 subshells. A list of mass values used in this study is included.

scholarly journals On the atomic masses (weights?) Of the elements

2012 ◽  
Vol 48 (1) ◽  
pp. 153-159 ◽  
Author(s):  
G. Kaptay
Keyword(s):  
Atomic Weight ◽  
Atomic Mass ◽  
Essential Information ◽  
Atomic Masses ◽  
System Of Units

Atomic masses (weights?) is an essential information for mining and metallurgy. The paper discusses four subjects around this problem. First, the classification of all the elements is suggested into 4 classes, based on their isotope features, determining the accuracy of their known atomic masses. As part of that, the class of elements is discussed with uncertain atomic weights in accordance with the 2009 IUPAC recommendations. A better (easier to use) format of atomic weights is presented for this class of elements. Third, it is found not informative to leave empty spaces instead of approximate atomic weights for elements with unstable isotopes. Fourth, the term atomic weight vs the term atomic mass is discussed shortly, in agreement with the SI system of units and in contrary to the questionable IUPAC convection.

Nuclear Shell Structure in Semi-Realistic Mean-Field Approach

2011 ◽  
Author(s):  
H. Nakada ◽  
Paraskevi Demetriou ◽  
Rauno Julin ◽  
Sotirios Harissopulos
Keyword(s):  
Shell Structure ◽  
Mean Field ◽  
Field Approach ◽  
Nuclear Shell

Precise atomic masses for titanium

1979 ◽  
Vol 57 (2) ◽  
pp. 266-270 ◽  
Author(s):  
K. S. Kozier ◽  
K. S. Sharma ◽  
R. C. Barber ◽  
J. W. Barnard ◽  
R. J. Ellis ◽  
...  
Keyword(s):  
High Resolution ◽  
Mass Spectrometer ◽  
Atomic Mass ◽  
Atomic Masses ◽  
Mass Data ◽  
High Resolution Mass ◽  
University Of Manitoba ◽  
The University ◽  
High Resolution Mass Spectrometer ◽  
Resolution Mass

The 1.00 m radius high resolution mass spectrometer at the University of Manitoba ('Manitoba II') has been used to determine the atomic masses of 47Ti and 48Ti. These data are somewhat superior in precision to existing values and improve the reliability of atomic mass data in that region of the mass table.

NUCLEAR POINT-GROUP SYMMETRIES AND NEW IDEAS ABOUT NUCLEAR STABILITY: AN OVERVIEW

2009 ◽  
Vol 18 (10) ◽  
pp. 2155-2159
Author(s):  
J. DUDEK ◽  
D. CURIEN ◽  
A. GÓŹDŹ ◽  
K. MAZUREK
Keyword(s):  
Mean Field Theory ◽  
Point Group ◽  
Mean Field ◽  
Shell Effects ◽  
Nuclear Stability ◽  
Particle Spectra ◽  
New Ideas ◽  
Group Symmetries ◽  
Nuclear Shell ◽  
Nuclear Shell Effects

The nuclear mean-field theory and the group representation theory can be used to optimise the search for strong nuclear shell effects. The two theories allow to correlate the symmetry aspects with the presence of large gaps in the single-particle spectra, facilitate in this way the conditions of search for strong nucleonic- and nuclear-binding and thus for an increased nuclear stability. In this article we give a short overview of the related on-going research, focussing on the results of the TetraNuc Collaboration.

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