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Bibliographic Details
Main Authors:	Burdette, D. P., Zite, R., Brodeur, M., Valverde, A. A., Bruce, O., Bualuan, R., Cannon, A., Clark, J. A., Davis, C., Florenzo, T., Gallant, A. T., Harkin, J., Houff, A. M., Li, J., Liu, B., Long, J., O'Malley, P. D., Porter, W. S., Quick, C., Ringle, R., Rivero, F., Savard, G., Yeck, M. A.
Format:	Preprint
Published:	2025
Subjects:	Instrumentation and Detectors Nuclear Experiment
Online Access:	https://arxiv.org/abs/2504.08021
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The St. Benedict ion trapping system, which aims to measure the $β-ν$ angular correlation parameter in superallowed-mixed mirror transitions, is under construction at the University of Notre Dame. These measurements will provide much-needed data to improve the accuracy of the $V_{ud}$ element of the CKM matrix. One of the major components of this system is the radio frequency quadrupole cooler-buncher, which is necessary to create low-emittance ion bunches for injection into the measurement Paul trap. The off-line commissioning of the cooler-buncher, using a potassium ion source, determined that the device could produce cooled ion bunches characterized by a 50-ns full-width-half-maximum time width. The commissioning results also determined the trapping efficiency to be 93(1)$\%$ and the trapping half-life to be 20.0(5) s.

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