The APS multi-bend achromatic (MBA) upgrade storage ring plans to support two bunch fill patterns: a 48-bunch and a 324-bunch. A “swap out” injection scheme is required. In order to provide the required kick to injected beam, to minimize the beam loss and residual oscillation of injected beam, and to minimize the perturbation to stored beam during injection, the rise, fall, and flat-top parts of the kicker pulse must be within a 16.9-ns interval. Stripline-type kickers are chosen for both injection and extraction. We developed a prototype kicker that supports a ±15kV differential pulse voltage. We performed high voltage discharge, TDR measurement, high voltage pulse test and beam test of the kicker. We report the final design of the fast kicker and the test results. INTRODUCTION A prototype stripline kicker was developed for the APS MBA upgrade storage ring. Its design was reported in IPAC15 [1]. Further optimization of the kicker model was performed. Fabrication of the kicker and feedthroughs started February of 2016. The kicker was delivered recently. We performed a series of tests of the kicker. We report the final design of the kicker and the test results. Figure 1: Geometry of the stripline kicker 2-D model. With these parameters: a=7.8 mm, b=7.14 mm, α = 43.83°, a0= 2.87mm, a00=15.91 mm, b0=14.54 mm, blade thickness=3.0 mm. FINAL KICKER GEOMETRY CST Microwave Studio [2] was employed in the optimization simulation of the kicker and feedthrough. We used its frequency domain solver to perform 3D impedance and field simulation, and optimization of the matching of the interface between the feedthroughs and the kicker blades. We also use its time-domain tool to evaluate the impedance of a Gaussian beam bunch. CST MW studio has TDR simulation. We compared its results with TDR measurement of the kicker [3]. A final geometry was selected. Figure 1 shows the main cross-section of the final geometry and its parameters. Figure 2 shows a 3D model of the kicker. Figure 2: A plot of the kicker design model.

The ongoing ATLAS (Argonne Tandem Linac Accelerator System) upgrade project requires several substantial developments in accelerator technologies: a CW heavy ion RFQ and a high-performance cryomodule with seven low-beta cavities. The upgrade project is well advanced. The physics and engineering design of the RFQ are complete and fabrication of OFE copper parts is in progress. High-temperature furnace brazing of the 5 strongly coupled segments which form the 3.9-meter long RFQ is planned for the summer of 2011. The RFQ design includes several innovative features such as trapezoidal vane tip modulation and a compact output radial matcher to form an axially symmetric beam. The upgrade project also includes the development and the construction of a cryomodule containing seven 72.75 MHz SC quarter wave cavities designed with a geometrical G=0.077 and four SC solenoids. The cavity design provides an accelerating voltage greater than 2.5 MV per cavity. The prototype cavity which includes a high-power capacitive coupler and piezoelectric tuner has been developed, fabricated and is being tested. This paper reports on the innovative design features incorporated into both the RFQ and the cryomodule and the current status of the project.