Reduction of Beam Current Noise in the FNAL Magnetron Ion Source

Conference · Wed Jan 01 00:00:00 EST 2014

DOI:https://doi.org/10.1063/1.4916482· OSTI ID:1326612

Bollinger, D. S. ^[1]; Karns, P. R. ^[1]; Tan, C. Y.

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1. Fermilab

The new FNAL Injector Line with a circular dimple magnetron ion source has been operational since December of 2013. Since the new injector came on line there have been variations in the H- beam current flattop observed near the downstream end of the linac. Several different cathode geometries including a hollow cathode suggested by Dudnikov [1] were tried. We expanded on those studies by trying mixtures ranging from 0.25%N, 99.75%H to 3%N, 97%H. The results of these studies in our test stand will be presented in this paper.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1326612
• Report Number(s): FERMILAB-CONF-14-356-AD; 1319822
• Resource Relation: Journal Volume: 1655
• Country of Publication: United States
• Language: English

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