The authors review the present status of self-consistent mean-field (SCMF) models for describing nuclear structure and low-energy dynamics. These models are presented as effective energy-density functionals. The three most widely used variants of SCMF's based on a Skyrme energy functional, a Gogny force, and a relativistic mean-field Lagrangian are considered side by side. The crucial role of the treatment of pairing correlations is pointed out in each case. The authors discuss other related nuclear structure models and present several extensions beyond the mean-field model which are currently used. Phenomenological adjustment of the model parameters is discussed in detail. The performance quality of the SCMF model is demonstrated for a broad range of typical applications.

Self-consistent mean-field models for nuclear structure

Table of experimental nuclear ground state charge radii: An update

The first part of this two-part review focused on the fundamental and diagnostics aspects of laser-induced plasmas, only touching briefly upon concepts such as sensitivity and detection limits and largely omitting any discussion of the vast panorama of the practical applications of the technique. Clearly a true LIBS community has emerged, which promises to quicken the pace of LIBS developments, applications, and implementations. With this second part, a more applied flavor is taken, and its intended goal is summarizing the current state-of-the-art of analytical LIBS, providing a contemporary snapshot of LIBS applications, and highlighting new directions in laser-induced breakdown spectroscopy, such as novel approaches, instrumental developments, and advanced use of chemometric tools. More specifically, we discuss instrumental and analytical approaches (e.g., double- and multi-pulse LIBS to improve the sensitivity), calibration-free approaches, hyphenated approaches in which techniques such as Raman and fluorescence are coupled with LIBS to increase sensitivity and information power, resonantly enhanced LIBS approaches, signal processing and optimization (e.g., signal-to-noise analysis), and finally applications. An attempt is made to provide an updated view of the role played by LIBS in the various fields, with emphasis on applications considered to be unique. We finally try to assess where LIBS is going as an analytical field, where in our opinion it should go, and what should still be done for consolidating the technique as a mature method of chemical analysis.

https://journals.sagepub.com/doi/pdf/10.1366/11-06574

Laser-induced breakdown spectroscopy (LIBS), part II: review of instrumental and methodological approaches to material analysis and applications to different fields.

This work consists of two volumes, and extends over eighteen hundred closely printed pages. In the preface we are informed that the greater part was in manuscript when the pen dropped from the author's hand. The section on Diseases of the Heart was not completed, and that on Diseases of the Skin was not commenced. Dr Wilks has completed the former; while the editor, Dr Pye-Smith, has supplied the latter. The range of the work is the same as that of other treatises on the Principles and Practice of Medicine, while owing to its size greater freedom has necessarily been obtained for a more elaborate treatment of the varied subjects with which such a work deals, than could be possible in one of more restricted dimensions. But this is one of the few large works which one would gladly have had even fuller; its whole contents are of such a quality that curtailment in any section would have been a loss. It is quite impossible in the space at our disposal to critically review the special teaching of the various chapters, and yet without this there is difficulty in conveying anything like an accurate impression of what the book is. Even to class it as the best work

The Principles and Practice of Medicine

Energy levels of light nuclei A=8,9,10

Nuclear spin and magnetic moment of 11Li

Sharp atomic and ionic line spectra of excimer-laser-induced ablation plasmas of samples in liquids were observed. A new double-pulse technique employing quartz fibers facilitates spectral analysis of samples in liquids in which spectral lines normally are strongly broadened and quenched. The first pulse generates a cavitation bubble on the sample surface, which provides a gaseous environment for optical emission spectroscopy on the ablation plasma induced by a second pulse fired into the bubble.

Double-pulse technique for optical emission spectroscopy of ablation plasmas of samples in liquids

Hyperfine structures and isotope shifts of strontium isotopes with A=78 to A=98 and A=100 were measured by collinear fast beam laser spectroscopy. Nuclear spins, moments and changes in mean square charge radii are extracted from the data. The spins and moments of most of the odd isotopes are explained in the framework of the single particle model. The changes in mean square charge radii are compared with predictions of the droplet model and of Hartree-Fock-plus-BCS calculations. For the isotopes in the transitional regions below and above the N=50 shell closure, the inclusion of quadrupole zero point motion in the Droplet model describes part of the observed shell effect. An additional change in the surface region of the charge distribution at spherical shape is suggested by the microscopic model. Furthermore, we propose that the isotopes $^{78}\mathrm{Sr}$ and $^{80}\mathrm{Sr}$ may show an unusual shape-sharing structure, with different mean deformations in the ground and ${2}_{1}^{+}$ excited states.

Systematics of nuclear ground state properties in Sr 78 – 100 by laser spectroscopy

(PPLN) crystal pumped by two single-frequency diode lasers. A maximum DFG power of 1.6 μW at 3.6 μm was generated with a pump power of 61.4 mW at 832 nm and a signal power of 41.5 mW at 1083 nm incident on a 19-mm-long PPLN crystal, which corresponds to a conversion efficiency of 335 μW W-2 cm-1.

/pdf/compact-mid-infrared-trace-gas-sensor-based-on-difference-3kppa1frbq.pdf

Walter Neu

Papers

Nuclear spin and magnetic moment of 11Li

Double-pulse technique for optical emission spectroscopy of ablation plasmas of samples in liquids

Systematics of nuclear ground state properties in Sr 78 – 100 by laser spectroscopy

Compact mid-infrared trace gas sensor based on difference-frequency generation of two diode lasers in periodically poled LiNbO3

Xenon isotopes far from stability studied by collisional ionization laser spectroscopy