Beam homogeneity of caesium seeded SPIDER using a direct beamlet current measurement

• Published in: Fusion engineering and design Vol. 192; p. 113599
• Main Authors: Shepherd, Alastair, Patton, Tommaso, Pouradier Duteil, Basile, Pimazzoni, Antonio, Rigoni Garola, Andrea, Sartori, Emanuele
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.07.2023
• Subjects: Beam current; Beam optics; Beam uniformity; Negative-ion source; SPIDER; Beam optics; SPIDER; Negative-ion source; Beam current; Beam uniformity

The ITER Heating Neutral Beam (HNB) source prototype SPIDER (Source for the Production of Ions of Deuterium Extracted from a Radio frequency plasma), hosted at the Neutral Beam Test Facility (NBTF) in Padova, Italy, has recently started operating with evaporated caesium in the source. This moves the...