Speaker
Ralitsa Sharankova
(Fermi National Accelerator Laboratory)
Description
The Fermilab 750keV injector sends 25mA H- beam for 30µs at a rep-rate of 15Hz. The beam transmission through the FNAL injector is currently less than 50% from the ion source to the entrance of the drift tube linac. Recently it was uncovered that the primary loss point is within the region prior to the RFQ which houses the solenoid focal elements that match the beam to the RFQ. With recent diagnostic measurements the beam profile was able to be obtained in the LEBT and began to shed light on beam size with the use of a scraper paddle. We will discuss beam emittance measurement in the LEBT and a mitigation plan to improve the transmission efficiency.
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Primary author
Daniel Jones
(Fermi National Accelerator Laboratory)
Co-authors
Kiyomi Seiya
(Fermi National Accelerator Laboratory)
Valery Kapin
(Fermi National Accelerator Laboratory)
Dan Bollinger
(Fermi National Accelerator Laboratory)
Ralitsa Sharankova
(Fermi National Accelerator Laboratory)
