PoS - Proceedings of Science
Volume 433 - 19th Workshop on Polarized Sources, Targets and Polarimetry (PSTP2022) - Session 10
Status of precise measurements of electron-beam polarization changes during long term operation
J. Trieb*, V. Tioukine and K. Aulenbacher
Full text: pdf
Pre-published on: May 02, 2023
Published on: August 04, 2023
For the high-precision measurements in the experiments at the new Mainz Energy recovering
Superconducting Accelerator (MESA), it is necessary to know exactly the long-term spin properties
of the electron beam. For this purpose, a test setup has been built at the Institute for Nuclear physics.
Comparison is made between two processes for activation of a photocathode using oxygen and
nitrogen trifluoride.
The aim is to examine the possible advantages of an oxygen-free preparation, especially with
regard to the influence on the evolution of spin polarization during the experiment. The setup and
the first preliminary results are presented here.
DOI: https://doi.org/10.22323/1.433.0025
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