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Upgrades of the GANDALPH photodetachment detector towards the determination of the electron affinity of astatine

Journal article
Authors D. Leimbach
S. Rothe
Lars Bengtsson
A. Ringvall-Moberg
J. Sundberg
K. Wendt
D. Hanstorp
Published in Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
ISSN 0168583X
Publication year 2019
Published at Department of Physics (GU)
Language en
Keywords Electron affinity, GANDALPH, Negative ions, Photodetachment
Subject categories Accelerator Physics and Instrumentation, Atomic physics, Other electrical engineering, electronics and photonics, Embedded Systems, Signal Processing


© 2019 The Gothenburg ANion Detector for Affinity measurements by Laser PHotodetachment (GANDALPH)has recently been built for measurements of electron affinities (EA)of radioisotopes. A first measurement campaign is aimed towards the determination of the EA of astatine, the rarest naturally occurring element on earth. In this work we present several upgrades of GANDALPH which have been implemented in order to facilitate EA measurements of radioisotopes where only low intensity ion beams (<1 pA)can be produced.

Page Manager: Webmaster|Last update: 9/11/2012

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