Progress of ultra trace determination of technetium using laser resonance ionization mass spectrometry

Wendt, Κ.; Geppert, Christopher; Mattolat, C.; Passler, G.; Raeder, S.; Schwellnus, F.; Wies, K.; Trautmann, Ν.

doi:10.1007/s00216-012-6309-8

Cited by 14 publications

(10 citation statements)

References 11 publications

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“…Ion trap precision spectroscopy has led the way to implement quantum algorithms [1], test fundamental symmetries of nature [2], trace element analysis [3], isotope separation [4] etc.. In each of these experiments an essential component has been a stable laser to probe atomic or molecular transition.…”

Section: Introductionmentioning

confidence: 99%

Absolute Te_2 reference for barium ion at 4554 nm

2016

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Precision atomic spectroscopy is presently the work horse in quantum information technology, metrology, trace analysis and even for fundamental tests in physics. Stable lasers are inherent part of precision spectroscopy which in turn requires absolute wavelength markers suitably placed corresponding to the atomic species being probed. Here we present, new lines of tellurium (Te2) which allows locking of external cavity diode laser (ECDL) for precision spectroscopy of singly charged barium ions. In addition, we have developed an ECDL with over 100 GHz mod-hop-free tuning range using commercially available diode from Nichia. These two developments allow nearly drift-free operation of a barium ion trap set-up with one single reference cell thereby reducing the complexity of the experiment.

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Section: Introductionmentioning

confidence: 99%

Absolute Te_2 reference for barium ion at 4554 nm

2016

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“…The direct benefit is to improve the efficiency of on-line beam delivery with TRILIS and other similar LIS facilities on these two elements. It also provides good reference schemes of Lu and Pr for any other application using laser ionization as a sensitive atom detection method, such as ultra trace analysis [16,28]. As described in our previous work [27], no absolute ionization efficiency measurement is made in our off-line laser ionization scheme development due to the absence of a properly suppressed Faraday cup after the QMS.…”

Section: Experimental Procedure Results and Discussionmentioning

confidence: 99%

Resonant Ionization Laser Ion Source (RILIS) off-line developments on Ga, Al and Ca

Li¹,

Lassen²,

Teigelhöfer³

et al. 2013

Nuclear Instruments and Methods in Physics Research Section B:

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“…The excitation schemes of U, Pu and Tc as listed in Table 1, were developed in former spectroscopic experiments of the LARISSA group at the Institute of Physics of the Johannes Gutenberg-Universität Mainz or with its participation in collaborating institutions, respectively. 4,7,8 3.1.1 Resonant laser-SNMS spectra. Assuming complete suppression of initial sputter ions, mass spectra from resonant laser-SNMS should ideally just exhibit mass peaks of the selected element, selectively ionized by the multi-step resonant excitation process.…”

Section: Characterizing the Laser-snms Systemmentioning

confidence: 99%

“…It constitutes another ultra-trace analytic technique, which is routinely applied for analysis of radionuclides. 3,4 RIMS uses the characteristic atomic transitions for optical multi-step excitation and ionization and therefore intrinsically possesses the required element selectivity. Resonant laser-SNMS (Secondary Neutral Mass Spectrometry) is based on the combination of the direct and spatially resolving ablation of sample constituents by sputtering (adopted from SIMS) with subsequent laser resonance ionization of the sputtered neutral atomic fraction.…”

Section: Introductionmentioning

confidence: 99%