![](https://blogs.hope.edu/physics/wp-content/uploads/sites/35/2021/07/gabe_at_anl-rotated.jpg)
Gabe Balk and TJ Mann joined an international collaboration to study r-process nuclei (141, 143, and 145Cs) at Argonne National Laboratories with the CARIBU system. The Nuclear Group contributed two key pieces to the experiment: the tape target drive and control system and the barrel-shaped beta detector which has fibers to direct detector light out of SuN to photomultiplier tubes.
![](https://blogs.hope.edu/physics/wp-content/uploads/sites/35/2021/07/TJ_at_anl.jpg)