Calibration of the ISOLDE acceleration voltage using a high-precision voltage divider and applying collinear fast beam laser spectroscopy

Abstract

A high-voltage divider with accuracy at the ppm level and collinear laser spectroscopy were used to calibrate the highvoltage installation at the radioactive ion beam facility ISOLDE at CERN. The accurate knowledge of this voltage is particularly important for collinear laser spectroscopy measurements. Beam velocity measurements using frequencycomb based collinear laser spectroscopy agree with the new calibration. Applying this, one obtains consistent results for isotope shifts of stable magnesium isotopes measured using collinear spectroscopy and laser spectroscopy on laser-cooled ions in a trap. The long-term stability and the transient behavior during recovery from a voltage dropout were investigated for the different power supplies currently applied at ISOLDE.

13 pages, 6 figures

References in corpus (6)

• Neutrino mass limit from tritium beta decay
• Nuclear Charge Radii of Be-7,9,10 and the one-neutron halo nucleus Be-11
• TRIGA-SPEC: A setup for mass spectrometry and laser spectroscopy at the research reactor TRIGA Mainz
• Precision high voltage divider for the KATRIN experiment
• Precision spectroscopy of the 3s-3p fine structure doublet in Mg+
• The KATRIN Experiment

Cited by in corpus (11)

• Current Direct Neutrino Mass Experiments
• Nuclear Charge Radius of ${}^{12}$Be
• Next generation KATRIN high precision voltage divider for voltages up to 65kV
• Frequency-comb based collinear laser spectroscopy of Be for nuclear structure investigations and many-body QED tests
• Ultra-stable implanted 83Rb/83mKr electron sources for the energy scale monitoring in the KATRIN experiment
• Collinear laser spectroscopy of atomic cadmium
• Kinetic-beam-energy determination via collinear laser spectroscopy
• Nuclear charge radius of ${}^{26m}$Al and its implication for V${}_{ud}$ in the quark-mixing matrix
• High Voltage Determination and Stabilization for Collinear Laser Spectroscopy Applications
• Raman velocity filter as a tool for collinear laser spectroscopy
• Ultra-stable 3D-printed precision voltage divider for calibrations and experiments