Off-line Commissioning of the St. Benedict Radiofrequency Quadrupole Cooler-Buncher
Abstract
The St. Benedict ion trapping system, which aims to measure the 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 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.
Keywords
Cite
@article{arxiv.2504.08021,
title = {Off-line Commissioning of the St. Benedict Radiofrequency Quadrupole Cooler-Buncher},
author = {D. P. Burdette and R. Zite and M. Brodeur and A. A. Valverde and O. Bruce and R. Bualuan and A. Cannon and J. A. Clark and C. Davis and T. Florenzo and A. T. Gallant and J. Harkin and A. M. Houff and J. Li and B. Liu and J. Long and P. D. O'Malley and W. S. Porter and C. Quick and R. Ringle and F. Rivero and G. Savard and M. A. Yeck},
journal= {arXiv preprint arXiv:2504.08021},
year = {2025}
}
Comments
31 pages, 19 figures