• M.A. Tartaglia, J. DiMarco, Y. Huang, D.F. Orris, T.M. Page, R. Rabehl, I. Terechkine, J.C. Tompkins, T. Wokas
  Fermilab, Batavia

Funding: Work supported by the U.S. Department of Energy under contract No. DE-AC02-07CH11359

An R&D proton linac is under construction at FNAL and it will use solenoid lenses in the beam transport line. Because the needed focusing field is on the level of 6 Tesla, superconducting systems are used. In the low energy part of the linac, which uses room temperature accelerating structures, the lenses are placed in stand-alone cryostats. Production of the lenses and cryostats for the low energy section is under way. In the superconducting accelerating sections, the lenses are mounted inside RF cryomodules. Although focusing solenoids for the high energy sections have been designed and prototypes tested, R&D is still ongoing to address magnetic shielding and alignment issues. This report summarizes the performance of lenses for the low-energy part of the linac and presents the status of ongoing R&D.

• C.C. Jensen, R.E. Reilly, I. Terechkine
  Fermilab, Batavia

Funding: Fermilab is operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy.

A fast kicker magnet has been designed for use in Main Injector at Fermilab. The magnet will be used for controlled removal of unbunched beam created in the slip stacking process. The strength of each of the six magnets is 75 G·m at 500 A. The aperture is 11.4 cm wide x 5.3 cm high x 64 cm long. The field rise time from 3% to 97% of less than 57 ns has been achieved along with a flattop variation of less than ±3% variation. Results of simulation and measurements will be presented. The pulser is described in a companion paper.