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:  Tuesday, March 27, 2018  @ 10:30 am, Conf. Rm. A1100

TITLE:  Performance and Developments of NSLS-II BPMs

SPEAKER:  Weixing Cheng, BNL

ABSTRACT:  NSLS-II in-house developed BPM systems provide better than 200nm resolution and sub-micron long-term position stability, combined with the high-temperature stability of the storage ring tunnel, electronic racks, sophisticated support structures and orbit feedback. The talk will start with the introduction of the NSLS-II BPM button and electronics design, followed with measured performances of the system, including short and long-term orbit stabilities. Recent developments based on the BPM electronics enhance the capability for advanced beam measurements, as well as the stable operation of the low emittance storage ring. Examples of such developments, like the BPM gated function, fast glitch detection and beam measurement results will be presented. Future developments like pilot tone calibration and a newer version of electronics will be discussed to continuously improve the stable/reliable operations and beam studies at NSLS-II.

2017 ASD Seminars
Dec. 6 Beam by design Sasha Zholents
Nov. 15 Transverse-to-longitudinal emittance exchange based longitudinal electron beam manipulation Gwanghui Ha, Pohang Accelerator Laboratory
Nov. 9 Ultrafast relativistic electron diffraction and microscopy Pietro Musumeci, UCLA
Nov. 8 The VHF-Gun Electron Source Scheme: a Recipe for a High-Brightness, High-Repetition Rate Performance Fernando Sannibale, LBNL
Nov. 1 The NSLS-II Low Level RF System: Operations and Beam Studies Jim Rose, BNL
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