IPAC'23 - 14th International Particle Accelerator Conference

Testing of a fan-out kicker to protect collimators from low-emittance whole-beam aborts in the Advanced Photon Source storage ring

MOPA149

8 May 2023, 16:30

2h

Salone Adriatico

Poster Presentation MC2.A05: Synchrotron Radiation Facilities Monday Poster Session

Speaker

Jeffrey Dooling (Argonne National Laboratory)

Description

In the Advanced Photon Source Upgrade storage ring, the horizontal collimators protect the rest of the machine from whole beam aborts; however, as shown in previous experiments, the collimators themselves must also be protected from the full intensity of the lost store. The suitability of a vertically-deflecting fan-out kicker was evaluated experimentally. Aborted beam strikes the surface of the collimator with the expectation that the absorbed energy density or dose is reduced sufficiently to maintain the integrity of the device. We discuss the results from recent measurements where a fan-out kicker was employed to test this concept. 6 GeV, 200 mA (737-nC) APS stored beam was used to irradiate both aluminum and copper collimator test pieces.

Funding Agency

Work supported by the U.S. D.O.E., Office of Science, Office of Basic Energy Sciences,
under Contract No. DE-AC02-06CH11357.