Advanced Photon Source

An Office of Science National User Facility

ASD Seminar Series

The goal of this seminar is to encourage interaction between groups, act as an open forum to share ideas, achievements, and results, promote collaboration, communicate what APS personnel are doing and to educate people. Talks can be projects, tasks, ideas, etc. that are new, unfinished, ongoing as well as fully developed. This seminar is very informal and does not require a fully formatted presentation.

To suggest a speaker or to volunteer, please contact Geoff Waldschmidt

Next Seminar:  Wednesday, Nov. 1 2017 @ 11:00 am, Conf. Rm. A1100

TITLE: The NSLS-II Low Level RF System: Operations and Beam Studies

SPEAKER:  Jim Rose, Brookhaven National Laboratory

ABSTRACT:  Using a common hardware platform for booster, storage ring and MO distribution the NSLS-II digital LLRF controller is a versatile platform for RF field control in synchrotrons.  Using modular FPGA code and conditional compilation the instantiation of feedback, ramp generators and interlock components are conditional depending on the needs of the RF system targeted. A wide range of applications within logic such as a 7 channel Network Analyzer, constant-phase amplitude limiter, quench detection and feedforward tables have been in operation for several years and will be described. Accelerator study results including RF-Beam transfer function measurements will be presented as well as performance studies at the Canadian Light Source and NSRRC’s TLS and TPS.

2017 ASD Seminars
October 17 Towards A Fully Integrated Accelerator On A Chip Kent Wootton, SLAC
July 12 Cross-Talk Simulation between Q2 and L-bend Magnets for APS-U Melike Abliz, PSC
June 21 Preliminary Design of the Storage Ring Vacuum System for the APS Upgrade Ben Stillwell, AES
June 7

Physics considerations for APS-U vacuum design

Beam-Gas Interactions

Ryan Lindberg and Joe Calvey, ASD-AOP
May 2 Undulator Manufacturing for the European XFEL Suren Karabekyan, European XFEL
April 12 APS Upgrade: Magnets Mark Jaski, ASD-MD
March 22 Acoustically Levitated Liquid Droplet Kamlesh Suthar, AES-MED
March 8 Modeling rf Breakdown Jim Norem, Nano Synergy, Inc.
February 1 Channeling of Electrons and Positrons at SLAC Uli Wienands, PSC
Past Seminars by Year