Preparation of actinide targets by electrodeposition

Trautmann, Ν.; Folger, H.

doi:10.1016/0168-9002(89)90117-4

Cited by 60 publications

(24 citation statements)

References 10 publications

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“…In most of the measurements, our data reaches into the energy window relevant in the γ process. on tantalum backings (see [25] for a sketch of the electrolysis cell), but these layers did not properly adhere to the backings. Instead, the samples were made by careful and uniform deposition of 100 µl of the PdCl 2 solution within the area of the beam spot (12 mm in diameter) and subsequent drying.…”

Section: Experimental Techniquementioning

confidence: 99%

Cross sections for proton-induced reactions on Pd isotopes at energies relevant for theγprocess

et al. 2011

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Section: Experimental Techniquementioning

confidence: 99%

Cross sections for proton-induced reactions on Pd isotopes at energies relevant for theγprocess

et al. 2011

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“…However, the solution that did not adhere to the surface can be collected and reused resulting in minimal loss of a precious metal, with the overall deposition efficiency approaching 100%. Molecular plating has ~90% efficiency for the deposition of metal out of solution [1,2] comparable to PAD. Thus, the PAD method is likely a robust route to create metal oxide films suitable for nuclear science applications which require film uniformity and controlled film thickness.…”

Section: Methods Advantagesmentioning

confidence: 99%

“…Molecular plating has been used by Trautmann et al [1] and Mullen et al [2] to create uranium, plutonium and curium oxide films. Their films ranged from 150 to 550 nm in thickness, which are typical for nuclear science applications.…”

Section: Methods Advantagesmentioning

confidence: 99%

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Metal oxide films produced by polymer-assisted deposition (PAD) for nuclear science applications

et al. 2008

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The Polymer-Assisted Deposition (PAD) method was used to create crack-free homogenous metal oxide films for use as targets in nuclear science applications. Metal oxide films of europium, thulium, and hafnium were prepared as models for actinide oxides. Films produced by a single application of PAD were homogenous and uniform and ranged in thickness from 30 to 320 nm. The reapplication of the PAD method (sixtimes) with a ten percent by weight hafnium(IV) solution resulted in an equally homogeneous and uniform film with a total thickness of 600 nm.

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“…[108]. Within the ECHo collaboration, the Institute for Nuclear Chemistry at the Johannes Gutenberg University Mainz, which has decade-long experience with high-performance chemical separation of substantial amounts of radionuclides, see, e.g., [109][110][111], performs the chemical separation. The mass separation is performed at the RISIKO mass separator [112,113] operated at the Institute of Physics at the Johannes Gutenberg University Mainz or at the General Purpose Separator at the ISOLDE facility at CERN [60] to further purify the initial 163 Ho samples by an efficient and selective suppression of the 166m Ho contamination.…”

Section: Reactor Production Of 163 Homentioning

confidence: 99%

The electron capture in 163Ho experiment – ECHo

Gastaldo

Blaum

Chrysalidis

et al. 2017

Eur. Phys. J. Spec. Top.

132

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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Preparation of actinide targets by electrodeposition

Cited by 60 publications

References 10 publications

Cross sections for proton-induced reactions on Pd isotopes at energies relevant for theγprocess

Cross sections for proton-induced reactions on Pd isotopes at energies relevant for theγprocess

Metal oxide films produced by polymer-assisted deposition (PAD) for nuclear science applications

The electron capture in 163Ho experiment – ECHo

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