Physical Thickness Characterization of the FRIB Production Targets
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866915956834435072 |
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| author | Lee, D. J. Reaume, M. Franklin, W. Song, J. |
| author_facet | Lee, D. J. Reaume, M. Franklin, W. Song, J. |
| contents | The FRIB heavy-ion accelerator, commissioned in 2022, is a leading facility
for producing rare isotope beams (RIBs) and exploring nuclei beyond the limits of stability.
These RIBs are produced via reactions between stable primary beams and a graphite target.
Approximately 20-40 \% of the primary beam power is deposited in the target,
requiring efficient thermal dissipation.
Currently, FRIB operates with a primary beam power of up to 20 kW. To enhance thermal dissipation efficiency,
a single-slice rotating graphite target with a diameter of approximately 30 cm is employed.
The effective target region is a 1 cm-wide outer rim of the graphite disc.
To achieve high RIB production rates, the areal thickness variation must be constrained within 2 \%.
This paper presents physical thickness characterizations of FRIB production targets with various nominal thicknesses,
measured using a custom-built non-contact thickness measurement apparatus. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_00273 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Physical Thickness Characterization of the FRIB Production Targets Lee, D. J. Reaume, M. Franklin, W. Song, J. Accelerator Physics Nuclear Experiment The FRIB heavy-ion accelerator, commissioned in 2022, is a leading facility for producing rare isotope beams (RIBs) and exploring nuclei beyond the limits of stability. These RIBs are produced via reactions between stable primary beams and a graphite target. Approximately 20-40 \% of the primary beam power is deposited in the target, requiring efficient thermal dissipation. Currently, FRIB operates with a primary beam power of up to 20 kW. To enhance thermal dissipation efficiency, a single-slice rotating graphite target with a diameter of approximately 30 cm is employed. The effective target region is a 1 cm-wide outer rim of the graphite disc. To achieve high RIB production rates, the areal thickness variation must be constrained within 2 \%. This paper presents physical thickness characterizations of FRIB production targets with various nominal thicknesses, measured using a custom-built non-contact thickness measurement apparatus. |
| title | Physical Thickness Characterization of the FRIB Production Targets |
| topic | Accelerator Physics Nuclear Experiment |
| url | https://arxiv.org/abs/2510.00273 |