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Publication

Voltage scanning and technical upgrades at the Collinear Resonance Ionization Spectroscopy experiment

Journal Contribution - e-publication

To optimize the performance of the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at CERN- ISOLDE, technical upgrades are continuously introduced, aiming to enhance its sensitivity, precision, stability, and efficiency. Recently, a voltage-scanning setup was developed and commissioned at CRIS, which improved the scanning speed by a factor of three as compared to the current laser-frequency scanning approach. This leads to faster measurements of the hyperfine structure for systems with high yields (more than a few thousand ions per second). Additionally, several beamline sections have been redesigned and manufactured, including a new field-ionization unit, an electrostatic bend with a larger deflection angle, and improved ion optics. The beamline upgrades are expected to yield an improvement of at least a factor of 5 in the signal-to-noise ratio by avoiding the use of high-power lasers (which yield non-resonantly produced ions) and providing time-of-flight separation between the resonant ions and the collisional background.
Journal: Nuclear Instruments & Methods In Physics Research Section B-Beam Interactions With Materials And Atoms
ISSN: 0168-583X
Volume: 541
Pages: 86 - 89
Publication year:2023
Accessibility:Open