2025/04/10 by D. P. Burdette, Burdette, D. P., R. Zite +43 · 1 citation
Engineering · #Advanced Thermodynamic Systems and Engines #FOS: Physical sciences #Heat Transfer Mechanisms #Heat Transfer and Boiling Studies #Instrumentation and Detectors (physics.ins-det) #Nuclear Experiment (nucl-ex)
paper · pdf · doi:10.48550/arxiv.2504.08021
openalex publication_date 2025/04/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
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 Vud 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.