| Issue |
EPJ Web Conf.
Volume 229, 2020
29th International Conference of the International Nuclear Target Development Society (INTDS2018)
|
|
|---|---|---|
| Article Number | 06002 | |
| Number of page(s) | 3 | |
| Section | Targets for Special Application (Medical, Industrial, Controlled Fusion) | |
| DOI | https://doi.org/10.1051/epjconf/202022906002 | |
| Published online | 28 February 2020 | |
https://doi.org/10.1051/epjconf/202022906002
Second generation degrader foil for the CARIBU project
Physics Division, Argonne National Laboratory, Lemont, Illinois, United States
* Corresponding author: mgott@anl.gov
Published online: 28 February 2020
The Californium Rare Ion Breeder Upgrade (CARIBU) project utilizes 252Cf to provide beams of neutron-rich nuclides with intensities not currently available at other facilities. The electroplated 252Cf source is positioned inside a large helium gas catcher, where the ejected fission fragments lose their energy and are slowed. Prior to entering this gas catcher, the ions first pass through a gold cover foil to contain self-sputtering recoil emissions and then through an aluminium degrader foil, where much of their residual energy is reduced. In the past due to production limitations, a less than ideal cylindrical shaped degrader was utilized. This resulted in non-uniform energy loss as the ions passed through the degrader. With the advent of 3D printing, a new hemispherical degrader was prepared to enable a more uniform energy loss. The design, production, and assembly will be discussed.
© The Authors, published by EDP Sciences, 2020
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