V. V. Petrunin

Bio: V. V. Petrunin is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Photoionization & Ionization. The author has an hindex of 6, co-authored 15 publications receiving 124 citations.

Resonance ionization spectroscopy on a fast atomic ytterbium beam

Abstract: High-resolution laser spectroscopy for the study of nuclear sizes and shapes J Billowes and P Campbell High resolution laser spectroscopy of atomic systems R C Thompson High-resolution laser spectroscopy of Fr ns and nd Rydberg levels E Arnold, W Borchers, M Carre et al. Resonance laser ionization of atoms for nuclear physics V N Fedosseev, Yu Kudryavtsev and V I Mishin Laser detection of single atoms Viktor I Balykin, G I Bekov, V S Letokhov et al. Precision atomic physics techniques for nuclear physics with radioactive beams Klaus Blaum, Jens Dilling and Wilfried Nortershauser Resonance ionization spectroscopy on a fast atomic ytterbium beam

Laser photoionization detection of the rare isotope 3He

Abstract: Based on combination of the two-step collinear isotope-selective photoionization and time-of-flight separation of atoms in a fast modulated beam, a new technique has been developed for detecting the3He rare isotope with an isotopic selectivity of up to 1010. The technique helped to detect optically, for the first time,3He at a relative abundance of 4·10−8.

Laser detection of the rare isotope (3)He at concentrations as low as 10(-9).

Abstract: The method of collinear laser photoionization of atoms in a modulated fast beam is used to detect the rare isotope 3He, with high-repetition-rate lasers being applied to improve the detection sensitivity. The method has made it possible to detect 3He at relative abundances as low as 10−9.

A method of detecting the rare isotopes 85Kr and 81Kr by means of collinear laser photoionization of atoms in an accelerated beam

Abstract: A method is suggested for detecting rare krypton isotopes, based on the collinear laser photoionization of atoms in an accelerated beam at the exit from a mass separator. The results of investigations into the two-step collinear laser photoionization of metastable krypton atoms in an accelerated beam are presented.

Precision Atomic Physics Techniques for Nuclear Physics with Radioactive Beams

Abstract: Atomic physics techniques for the determination of ground-state properties of radioactive isotopes are very sensitive and provide accurate masses, binding energies, Q-values, charge radii, spins and electromagnetic moments. Many fields in nuclear physics benefit from these highly accurate numbers. They give insight into details of the nuclear structure for a better understanding of the underlying effective interactions, provide important input for studies of fundamental symmetries in physics, and help to understand the nucleosynthesis processes that are responsible for the observed chemical abundances in the Universe. Penning-trap and storage-ring mass spectrometry as well as laser spectroscopy of radioactive nuclei have now been used for a long time but significant progress has been achieved in these fields within the last decade. The basic principles of laser spectroscopic investigations, Penning-trap and storage-ring mass measurements of short-lived nuclei are summarized and selected physics results are discussed.

Isotope shift in the electron affinity of chlorine.

Abstract: The specific mass shift in the electron affinity between $^{35}\mathrm{Cl}$ and $^{37}\mathrm{Cl}$ has been determined by tunable-laser photodetachment spectroscopy to be -0.51(14) GHz. The isotope shift was observed as a difference in the onset of the photodetachment process for the two isotopes. In addition, the electron affinity of Cl was found to be 29 138.59(22) ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$, giving a factor of 2 improvement in the accuracy over earlier measurements. Many-body calculations including lowest-order correlation effects demonstrate the sensitivity of the specific mass shift and show that the inclusion of higher-order correlation effects would be necessary for a quantitative description.

TRIGA-SPEC: A setup for mass spectrometry and laser spectroscopy at the research reactor TRIGA Mainz

Abstract: The research reactor TRIGA Mainz is an ideal facility to provide neutron-rich nuclides with production rates sufficiently large for mass spectrometric and laser spectroscopic studies. Within the TRIGA-SPEC project, a Penning trap as well as a beamline for collinear laser spectroscopy are being installed. Several new developments will ensure high sensitivity of the trap setup enabling mass measurements even on a single ion. Besides neutron-rich fission products produced in the reactor, also heavy nuclides such as 235 U or 252 Cf can be investigated for the first time with an off-line ion source. The data provided by the mass measurements will be of interest for astrophysical calculations on the rapid neutron-capture process as well as for tests of mass models in the heavy-mass region. The laser spectroscopic measurements will yield model-independent information on nuclear ground-state properties such as nuclear moments and charge radii of neutron-rich nuclei of refractory elements far from stability. TRIGA-SPEC also serves as a test facility for mass and laser spectroscopic experiments at SHIPTRAP and the low-energy branch of the future GSI facility FAIR. This publication describes the experimental setup as well as its present status.