PoS - Proceedings of Science
Volume 346 - 23rd International Spin Physics Symposium (SPIN2018) - Parallel Session: Polarized Ion and Lepton Sources and Targets (K. Aulenbacher and C. Keith)
POLARIZED ELECTRON GUN BEAM TESTS IN mA RANGE
E. Tsentalovich
Full text: pdf
Pre-published on: August 19, 2019
Published on: August 23, 2019
Abstract
The high intensity polarized electron gun at MIT-Bates was designed as an injector for the linac-ring version of ERHIC.. The design implements a separate preparation chamber, load lock, large area cathode, ring-shaped beam and active cathode cooling. Very good vacuum conditions have been achieved in both the gun chamber and the preparation chamber. Reliable cathode transfer between the load lock, the preparation chamber and the gun chamber has been demonstrated. Beam tests have been conducted with a current from 50 nA to 5 mA. The results of these tests are discussed.
DOI: https://doi.org/10.22323/1.346.0104
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