Towards a He-buffered laser ablation ion source for collinear laser spectroscopy
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In this paper, an ion source with a compact RF-only funnel ion guide placed on the axis behind the nozzle exit allows for effective extraction of high-quality ion beams into a pressure region below 10− ǫ 4 mbar.Abstract:
Laser ablation opens a material-independent method to produce ions from transition metals for laser spectroscopy. To overcome some drawbacks of this process, an ion source is under development at TU Darmstadt. A distinctive feature of this source is that ions are produced via laser ablation in presence of helium buffer gas where they stop and cool in the process of their collisions with the buffer gas atoms and are then extracted by the gas flow into low-pressure conditions through the supersonic nozzle. The compact RF-only funnel ion guide placed on the axis behind the nozzle exit allows for effective extraction of high-quality ion beams into a pressure region below 10− 4 mbar. The extraction is realized by using the gas flow trough a supersonic nozzle and an RF-only funnel ion guide, followed by a second nozzle and an RF+DC funnel representing two differential pumping stages. The technical details of this laser ablation ion source are described and the results of the first tests with the RF-only funnel are presented.read more
Citations
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Laser ablation loading of a radiofrequency ion trap
TL;DR: In this article, the authors used a nitrogen laser with a maximum pulse energy of 0.17 mJ and a peak intensity of about 250 MW/cm^2 for the loading of radiofrequency (RF) ion traps.
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A new Collinear Apparatus for Laser Spectroscopy and Applied Science (COALA).
Kristian König,J. Krämer,Christopher Geppert,Phillip Imgram,B. Maaß,Tim Ratajczyk,Wilfried Nörtershäuser +6 more
TL;DR: A new collinear laser spectroscopy setup that has been designed to overcome systematic uncertainty limits arising from high-voltage and frequency measurements, beam superposition, and collisions with residual gas that are present in other installations utilizing this technique is presented.
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Windowless gas dynamic ion beam cooler and buncher
TL;DR: In this paper, the concept of the windowless gas dynamic ion beam cooler and buncher is proposed and the feasibility of this concept for production of high quality continuous and pulsed ion beams in wide range of masses and having a very small transverse and longitudinal emittance is demonstrated by results of detailed gas dynamic and ion-trajectory simulations.
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Offline ion source for laser spectroscopy of RI at the SLOWRI
TL;DR: In this article, an ion source combining laser ablation of solid targets in helium gas and an RF ion guide system with an RF carpet was constructed for a reference measurement of isotope shifts.
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Fair-wind gas cell for the UniCell setup
TL;DR: In this article, the concept of the Fair-Wind Gas Storing Cell (FWC) was proposed for superheavy element (SHE) studies and demonstrated in detailed gas dynamic and Monte Carlo ion-trajectory simulations.
References
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Journal ArticleDOI
Commissioning the A1900 projectile fragment separator
David J. Morrissey,B. M. Sherrill,M. Steiner,Andreas Stolz,Ingo Wiedenhoever,Ingo Wiedenhoever +5 more
TL;DR: In this paper, the A1900 device represents a third generation projectile fragment separator (relative to the early work at LBL) and has a very large acceptance, a bending power significantly larger than that of the cyclotron and is constructed from large superconducting magnets (quadrupoles with 20 and 40 cm diameter warm bores).
Journal ArticleDOI
Development and applications of the IGISOL technique
Juha Äystö,Juha Äystö +1 more
TL;DR: In this article, the development and present status of the Ion Guide Isotope Separator On-Line (IGISOL) technique is presented, including future developments, including ion-beam manipulations by linear RFQ and Penning traps, together with high-energy applications of the IGISOL technique.
BookDOI
Pulsed Laser Ablation of Solids
TL;DR: Stafe et al. as discussed by the authors gave a short history of the laser tools in comparison to the classical tools and presented the main characteristics and applications of pulsed laser ablation process.