S. Lechner
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View article: Enhanced sensitivity for electron affinity measurements of rare elements
Enhanced sensitivity for electron affinity measurements of rare elements Open
The electron affinity (EA), the energy released when a neutral atom binds an additional electron, is a fundamental property of atoms that is governed by electron-electron correlations and is strongly related to an element’s chemical reacti…
View article: Charge Radii Measurements of Exotic Tin Isotopes in the Proximity of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mi>N</mml:mi> <mml:mo>=</mml:mo> <mml:mn>50</mml:mn> </mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mi>N</mml:mi> <mml:mo>=</mml:mo> <mml:mn>82</mml:mn> </mml:math>
Charge Radii Measurements of Exotic Tin Isotopes in the Proximity of and Open
We report nuclear charge radii for the isotopes Sn 104 – 134 , measured using two different collinear laser spectroscopy techniques at ISOLDE-CERN. These measurements clarify the archlike trend in charge radii along the isotopi…
View article: Charge radii measurements of exotic tin isotopes in the proximity of $N=50$ and $N=82$
Charge radii measurements of exotic tin isotopes in the proximity of $N=50$ and $N=82$ Open
We report nuclear charge radii for the isotopes $^{104-134}$Sn, measured using two different collinear laser spectroscopy techniques at ISOLDE-CERN. These measurements clarify the archlike trend in charge radii along the isotopic chain and…
View article: Impact of the drift length on the performance of MR-ToF devices
Impact of the drift length on the performance of MR-ToF devices Open
sponsorship: The research leading to these results has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme under grant agreement No. 679038. The work of F.M.M.…
View article: Commissioning of a radiofrequency quadrupole cooler-buncher for collinear laser spectroscopy
Commissioning of a radiofrequency quadrupole cooler-buncher for collinear laser spectroscopy Open
A RadioFrequency Quadrupole (RFQ) cooler-buncher system has been developed and implemented in a collinear laser spectroscopy setup. This system is dedicated to convert a continuous ion beam into short bunches, while enhancing beam quality …
View article: Nuclear charge radius of $^{26m}$Al and its implication for V$_{ud}$ in the quark-mixing matrix
Nuclear charge radius of $^{26m}$Al and its implication for V$_{ud}$ in the quark-mixing matrix Open
Collinear laser spectroscopy was performed on the isomer of the aluminium isotope $^{26m}$Al. The measured isotope shift to $^{27}$Al in the $3s^{2}3p\;^{2}\!P^\circ_{3/2} \rightarrow 3s^{2}4s\;^{2}\!S_{1/2}$ atomic transition enabled the …
View article: Increased beam energy as a pathway towards a highly selective and high-flux MR-ToF mass separator
Increased beam energy as a pathway towards a highly selective and high-flux MR-ToF mass separator Open
Many experiments at radioactive ion beam (RIB) facilities suffer from isobaric contamination, i.e. unwanted\nions of similar mass. During the last decade, Multi-Reflection Time-of-Flight (MR-ToF) devices have gained\nremarkable attention f…
View article: Treatment of scaphoid fractures and pseudarthroses with the human allogeneic cortical bone screw. A multicentric retrospective study
Treatment of scaphoid fractures and pseudarthroses with the human allogeneic cortical bone screw. A multicentric retrospective study Open
Background Allograft bone screws are rarely described for the fixation of the scaphoid. When fresh fractures are treated, metal screws are mainly used; when pseudarthrosis is the indication, plates in combination with vascularized or non-v…
View article: Simulation studies of a 30-keV MR-ToF device for highly sensitive collinear laser spectroscopy
Simulation studies of a 30-keV MR-ToF device for highly sensitive collinear laser spectroscopy Open
The Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy (MIRACLS) seeks to extend the reach of high-resolution collinear laser spectroscopy (CLS) to more exotic radionuclides. In this novel technique, ion bunches of short-lived…
View article: Doppler and sympathetic cooling for the investigation of short-lived radioactive ions
Doppler and sympathetic cooling for the investigation of short-lived radioactive ions Open
At radioactive ion beam (RIB) facilities, ions of short-lived radionuclides are cooled and bunched in buffergas-filled Paul traps to improve the ion-beam quality for subsequent experiments. To deliver even colder ions, beneficial to RIB ex…
View article: Stray-light Suppression for the MIRACLS Proof-of-principle Experiment
Stray-light Suppression for the MIRACLS Proof-of-principle Experiment Open
The Multi-Ion Reflection Apparatus for Collinear Laser Spectroscopy\n(MIRACLS), currently under development at ISOLDE/CERN, aims to\ncombine the high resolution of fluorescence-based collinear laser spectroscopy (CLS) with a high sensitivi…
View article: Fluorescence detection as a new diagnostics tool for electrostatic ion beam traps
Fluorescence detection as a new diagnostics tool for electrostatic ion beam traps Open
In the development towards the Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy (MIRACLS), an optical detection region for the observation of fluorescent light is added to an electrostatic ion beam trap (EIBT). In addition t…