Fast, low-level detection of strontium-90 and strontium-89 in environmental samples by collinear resonance ionization spectroscopy

Monz, L.; Hohmann, R.; Kluge, H.-J.; Kunze, S.; Lantzsch, J.; Otten, Ernst W.; Passler, G.; Senne, P.; Stenner, J.; Stratmann, K.; Swendt, K.; Zimmer, K.; Herrmann, G.; Trautmann, Ν.; Walter, Klaus

doi:10.1016/0584-8547(93)80154-m

Cited by 42 publications

(24 citation statements)

References 10 publications

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“…Hence, in addition to the intrinsic interest for understanding complex fine-hyperfine interactions, the need to predict the hyperfine structure for 89Sr has been a motivation for this work. Details of the experimental apparatus have been described elsewhere [9] and are only briefly reviewed here. Aqueous samples of Sr (NO3)2, dried and atomized in a graphite tube furnace, are surface ionized by passing through a tantalum tube, which is resistively heated to 2300 °C and is lined with rhenium foil to increase ionization efficiency.…”

Section: Methodsmentioning

confidence: 99%

Hyperfine structure in 5s 4d 3 D —5snf transitions of87Sr

Bushaw

Kluge

Lantzsch

et al. 1993

Z Phys D - Atoms, Molecules and Clusters

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Abstract. The hyperfine spectra of the 5s4d3D~-5s20f, 5s4d3D2-5s23f and 5s4d3D3-5s32f transitions of 87Sr (I = 9/2) have been measured by collinear fast beam laser spectroscopy. The structure in the upper configurations is highly perturbed by fine structure splitting that is of comparable size to the hyperfine interaction energy. These perturbations can be adequately treated with conventional matrix diagonalization methods, using the 5 selectron magnetic dipole interaction term as~ and the unperturbed fine structure splittings as input parameters. Additionally, hyperfine constants for the lower 5s4d3D configurations, including the A-and B-factors and a separation of the individual s-and d-electron contributions to these factors, are derived.

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Section: Methodsmentioning

confidence: 99%

Hyperfine structure in 5s 4d 3 D —5snf transitions of87Sr

Bushaw

Kluge

Lantzsch

et al. 1993

Z Phys D - Atoms, Molecules and Clusters

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“…24), which is installed in close proximity to the labs employed for the chemical separation procedure. RISIKO is a 30 kV high transmission mass separator that has been set up specifically for elemental ultra-trace determination using resonance ionization mass spectrometric (RIMS) techniques with lasers [115]. As one of the leading development facilities for on-line laser ion sources worldwide, it is equipped with a number of tunable solid-state laser systems for resonance ionization.…”

Section: Mass Separationmentioning

confidence: 99%

The electron capture in 163Ho experiment – ECHo

Gastaldo

Blaum

Chrysalidis

et al. 2017

Eur. Phys. J. Spec. Top.

136

110

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Abstract. Neutrinos, and in particular their tiny but non-vanishing masses, can be considered one of the doors towards physics beyond the Standard Model. Precision measurements of the kinematics of weak interactions, in particular of the 3 H β-decay and the 163 Ho electron capture (EC), represent the only model independent approach to determine the absolute scale of neutrino masses. The electron capture in 163 Ho experiment, ECHo, is designed to reach sub-eV sensitivity on the electron neutrino mass by means of the analysis of the calorimetrically measured electron capture spectrum of the nuclide 163 Ho. The maximum energy available for this decay, about 2.8 keV, constrains the type of detectors that can be used. Arrays of low temperature metallic magnetic calorimeters (MMCs) are being developed to measure the 163 Ho EC spectrum with energy resolution below 3 eV FWHM and with a time resolution below 1 μs. To achieve the sub-eV sensitivity on the electron neutrino mass, together with the detector optimization, the availability of large ultra-pure 163 Ho samples, the identification and suppression of background sources as well as the precise parametrization of the 163 Ho EC spectrum are of utmost importance. The high-energy resolution 163 Ho spectra measured with the first MMC prototypes with ion-implanted 163 Ho set the basis for the ECHo experiment. We describe the conceptual design of ECHo and motivate the strategies we have adopted to carry on the present medium scale experiment, ECHo-1K. In this experiment, the use of 1 kBq 163 Ho will allow to reach a neutrino mass sensitivity below 10 eV/c 2 . We then discuss how the results being achieved in ECHo-1k will guide the design of the next stage of the ECHo experiment, ECHo-1M, where a source of the order of 1 MBq 163 Ho embedded in large MMCs arrays will allow to reach sub-eV sensitivity on the electron neutrino mass.

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“…These demands can be met by RIS on a fast atomic beam in collinear geometry by use of cw laser light for excitation [8]. Figure 4 shows the set-up.…”

Section: Resonance Ionization Spectroscopy On a Fast Aomic Beam In Comentioning

confidence: 99%

Resonance Ionization Spectroscopy and its Application

Kluge

1994

Acta Phys. Pol. A

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Resonance ionization spectroscopy and its combination with mass spectrometry offer very high sensitivity and selectivity. The application of several variants of resonance ionization mass spectroscopy to the study of nuclear ground state properties and trace analysis of radioactive isotopes in the environment is discussed as well as the inverse process, i.e. the laser induced recombination, of bare heavy ions stored at relativistic energies in storage rings.

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Fast, low-level detection of strontium-90 and strontium-89 in environmental samples by collinear resonance ionization spectroscopy

Cited by 42 publications

References 10 publications

Hyperfine structure in 5s 4d 3 D —5snf transitions of87Sr

Hyperfine structure in 5s 4d 3 D —5snf transitions of87Sr

The electron capture in 163Ho experiment – ECHo

Resonance Ionization Spectroscopy and its Application

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