Rotating target wheel system for super-heavy element production at ATLAS

We give an overview of the special challenges regarding target development and production for accelerator-based heavy and superheavy-nuclei experiments in the past and perspectives for the future. Production of ever heavier elements, studies of heavy-element production in fusion or transfer reactions, spectroscopic investigations on their nuclear structure and decay and on the fission processes with fragment analyses, laser spectroscopic studies of their atomic structure, high-precision mass measurements as well as chemical studies are lively fields of current science. The ever-increasing beam intensities, feasible with new accelerator development, are crucial for the synthesis of superheavy elements because of the low cross sections for many of the reactions. Therefore, the development of target and backing materials with higher durability and experiment lifetime is increasingly important. Here we concentrate on the techniques necessary for the production of targets that are needed for experiments in this special field of interest. For the future, also development on target monitoring, target cooling, and beam intensity profile shaping techniques will play an important role, but are not in the focus of this article.

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“…Similar setups can be found more or less modified in many target laboratories working in this field with stable isotopes, see e.g. [32][33][34].…”

Section: Thermal Evaporationmentioning

confidence: 99%

Status and developments of target production for research on heavy and superheavy nuclei and elements

et al. 2023

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“…Future work and modifications will include mounting of our large diameter rotating target wheel [7] for high intensity beams within the deposition chamber for direct evaporations onto mounted target substrates. This will involve not only a further rotational shaft extension but also an offset of the thermal evaporation source boat (probably No.…”

Section: Future Upgradesmentioning

confidence: 99%

A new evaporator system for target preparation at Argonne National Laboratory

Greene¹,

Neubauer²,

Deligiannis³

2006

Nuclear Instruments and Methods in Physics Research Section A:

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Targets for Particle Accelerators

Lommel

Kindler

2009

Digital Encyclopedia of Applied Physics

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This article gives an overview of the different targets applied in particle accelerators and a short introduction to the material demands and the techniques established for the production. The main emphasis is placed not only on solid targets and strategies to increase their lifetime but also liquid and internal targets are touched. Special production processes for highly enriched isotopes are discussed. Finally, characterization in the sense of thickness, purity, and homogeneity is an important issue. This review is meant to be an outline, so we have provided an extensive bibliography furnishing details of the original publications.

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Rotating target wheel system for super-heavy element production at ATLAS

Cited by 8 publications

References 6 publications

Status and developments of target production for research on heavy and superheavy nuclei and elements

Status and developments of target production for research on heavy and superheavy nuclei and elements

A new evaporator system for target preparation at Argonne National Laboratory

Targets for Particle Accelerators

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