A5100713373- Nuclear physics research studies
- Atomic and Molecular Physics
- Astronomical and nuclear sciences
- Mass Spectrometry Techniques and Applications
- Atomic and Subatomic Physics Research
- Nuclear Physics and Applications
- Neutrino Physics Research
- Cold Atom Physics and Bose-Einstein Condensates
- Radioactive Decay and Measurement Techniques
- Particle physics theoretical and experimental studies
- Particle accelerators and beam dynamics
- Quantum, superfluid, helium dynamics
- Radioactive contamination and transfer
- Quantum Chromodynamics and Particle Interactions
- Mechanical and Optical Resonators
- Advanced Frequency and Time Standards
- Dark Matter and Cosmic Phenomena
- Nuclear reactor physics and engineering
- Radiation Detection and Scintillator Technologies
- Analytical Chemistry and Sensors
- Quantum Information and Cryptography
- Radioactive element chemistry and processing
- Computational Fluid Dynamics and Aerodynamics
- Analytical chemistry methods development
- Ion-surface interactions and analysis
Universidad de Granada
2015-2024
Universidad Politécnica de Madrid
2024
Arturo Prat University
2024
Asociación de Investigación Metalúrgica del Noroeste
2023
Tecnológico de Monterrey
2022
University of Florida
2022
Instituto de Física Corpuscular
2018
Universitat de València
2018
École Nationale Supérieure d'Ingénieurs de Caen
2005-2011
Laboratoire de Physique Corpusculaire de Caen
2005-2011
The masses of six neutron-deficient rare holmium and thulium isotopes close to the proton drip line were determined with SHIPTRAP Penning trap mass spectrometer. For first time proton-unbound 144,145Ho 147,148Tm directly measured. separation energies derived from measured values compared predictions formulas. new are used determine location for more accurately.Received 26 October 2006DOI:https://doi.org/10.1103/PhysRevLett.100.012501©2008 American Physical Society
Quantum-mechanical shell effects are expected to strongly enhance nuclear binding on an "island of stability" superheavy elements. The predicted center at proton number $Z=114,120$, or $126$ and neutron $N=184$ has been substantiated by the recent synthesis new elements up $Z=118$. However location extension island stability remain vague. High-precision mass spectrometry allows direct measurement energies thus determination strength effects. Here, we present such measurements for nobelium...
The masses of very neutron-deficient nuclides close to the astrophysical rp- and νp-process paths have been determined with Penning trap facilities JYFLTRAP at JYFL/Jyväskylä SHIPTRAP GSI/Darmstadt. Isotopes from yttrium (Z=39) palladium (Z=46) produced in heavy-ion fusion-evaporation reactions. In total, 21 were studied, almost half mass values experimentally for first time: 88Tc, 90−92Ru, 92−94Rh, 94,95Pd. For 95Pdm, (21/2+) high-spin state, a direct determination was performed. Relative...
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The electron shakeoff probability of $^{6}\mathrm{Li}^{2+}$ ions resulting from the ${\ensuremath{\beta}}^{\ensuremath{-}}$ decay $^{6}\mathrm{He}^{+}$ has been measured with high precision using a specially designed recoil ion spectrometer. This is first measurement pure following nuclear $\ensuremath{\beta}$ decay, not affected by multielectron processes such as Auger cascades. In this ideal textbook case for application sudden approximation, experimental ionization was found to be...
We demonstrate that abundant quantities of short-lived beta unstable ions can be trapped in a novel transparent Paul trap and their decay products directly detected coincidence. Low energy 6He+ (807 ms half-life) were extracted from the SPIRAL source at GANIL, then decelerated, cooled, bunched by means buffer gas cooling technique. More than 10(8) have been stored over measuring period six days, about 10(5) coincidences between particles 6Li++ recoiling recorded. The technique extended to...
The Penning trap mass spectrometer SHIPTRAP at GSI Darmstadt allows accurate measurements of radionuclides, produced in fusion-evaporation reactions and separated by the velocity filter SHIP from primary beam. Recently, masses three nobelium isotopes $^{252\ensuremath{-}254}\mathrm{No}$ were determined. These are first direct transuranium elements, which provide new anchor points this region. heavy nuclides cold-fusion irradiating a PbS target with $^{48}\mathrm{Ca}$ beam, resulting...
The masses of ten proton-rich nuclides, including the N=Z+1 nuclides ⁸⁵Mo and ⁸⁷Tc, were measured with Penning trap mass spectrometer SHIPTRAP. Compared to Atomic Mass Evaluation 2003 a systematic shift surface by up 1.6 MeV is observed causing significant abundance changes ashes astrophysical x-ray bursts. Surprisingly low α separation energies for neutron-deficient Mo Tc are found, making formation ZrNb cycle in rp process possible. Such would impose an upper temperature limit synthesis...
The mass of one the three major waiting points in astrophysical $rp$ process $^{72}\mathrm{K}\mathrm{r}$ was measured for first time with Penning trap spectrometer ISOLTRAP. measurement yielded a relative uncertainty $\ensuremath{\delta}m/m=1.2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}7}$ ($\ensuremath{\delta}m=8\text{ }\text{ }\mathrm{k}\mathrm{e}\mathrm{V}$). $^{73,74}\mathrm{K}\mathrm{r}$, also needed calculations, were more than 1 order magnitude improved accuracy. We use...
Direct mass measurements in the region of heaviest elements were performed with Penning-trap spectrometer SHIPTRAP at GSI Darmstadt. Utilizing phase-imaging ion-cyclotron-resonance mass-spectrometry technique, atomic masses $^{251}\mathrm{No}$ ($Z=102$), $^{254}\mathrm{Lr}$ ($Z=103$), and $^{257}\mathrm{Rf}$ ($Z=104$) available rates down to one detected ion per day determined directly for first time. The ground-state $^{254}\mathrm{No}$ $^{255,256}\mathrm{Lr}$ improved by more than order...
We use an electric-dipole laser-driven transition to precisely measure the cyclotron-frequency ratios of pairs <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mrow><a:mmultiscripts><a:mi>Ca</a:mi><a:none/><a:mo>+</a:mo><a:mprescripts/><a:none/><a:mn>42</a:mn></a:mmultiscripts><a:mo>−</a:mo><a:mmultiscripts><a:mi>Ca</a:mi><a:none/><a:mo>+</a:mo><a:mprescripts/><a:none/><a:mn>40</a:mn></a:mmultiscripts></a:mrow><a:mo>,</a:mo><a:mo>...
Abstract This work presents a methodology to extract coherent structures from high-speed schlieren images of turbulent twin jets which are more physically interpretable than those obtained with currently existing techniques. Recently, Prasad and Gaitonde (J Fluid Mech 940:1–11, 2022) introduced an approach employs the momentum potential theory Doak Sound Vib 131(1):67–90, 1989) compute (acoustic thermal) energy fluctuations by solving Poisson equation, combines it spectral proper orthogonal...