Related Experiment Video
Updated: May 24, 2026

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−
Published on: July 27, 2018
Beam purification by photodetachment (invited)
Y Liu1, P Andersson, J R Beene
1Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA. liuy@ornl.gov
Abstract:
Ion beam purity is of crucial importance to many basic and applied studies in nuclear science. Selective photodetachment has been proposed to suppress unwanted species in negative ion beams while preserving the intensity of the species of interest. A highly efficient technique based on photodetachment in a gas-filled radio frequency quadrupole ion cooler has been demonstrated. In off-line experiments with stable ions, up to 10(4) times suppression of the isobar contaminants in a number of interesting radioactive negative ion beams has been demonstrated. For selected species, this technique promises new experimental possibilities in studies on exotic nuclei, accelerator mass spectrometry, and fundamental properties of negative atomic and molecular ions.
More Related Videos
Related Concept Videos
Deactivation Processes: Jablonski Diagram
Total Internal Reflection Fluorescence Microscopy
UV–Vis Spectroscopy of Conjugated Systems
One of the factors influencing λmax is the extent of conjugation in the...
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

