First Beam Tests of the APS MBA Upgrade Orbit Feedback Controller

Sereno, Nicholas; Arnold, Ned; Brill, Adam; Bui, Hanh; Carwardine, John; Decker, Glenn; Deriy, Boris; Emery, Louis; Farnsworth, Richard; Fors, Thomas; Keane, Robert; Lenkszus, Frank; Lill, Robert; Paskvan, Dan; Pietryla, Anthony; Shang, Hairong; Shoaf, Steven; Veseli, Sinisa; Wang, Ju; Xu, Shifu; Yang, Bingxin

doi:10.18429/JACoW-IBIC2016-MOPG06

Joint Accelerator Conferences Website

The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.

RIS citation export for MOPG06: First Beam Tests of the APS MBA Upgrade Orbit Feedback Controller

TY - CONF
AU - Sereno, N.
AU - Arnold, N.D.
AU - Brill, A.R.
AU - Bui, H.
AU - Carwardine, J.
AU - Decker, G.
AU - Deriy, B.
AU - Emery, L.
AU - Farnsworth, R.I.
AU - Fors, T.
AU - Keane, R.T.
AU - Lenkszus, F.
AU - Lill, R.M.
AU - Paskvan, D.R.
AU - Pietryla, A.F.
AU - Shang, H.
AU - Shoaf, S.E.
AU - Veseli, S.
AU - Wang, J.
AU - Xu, S.
AU - Yang, B.X.
ED - Schaa, Volker RW
TI - First Beam Tests of the APS MBA Upgrade Orbit Feedback Controller
J2 - Proc. of IBIC2016, Barcelona, Spain, Sept. 13-18, 2016
C1 - Barcelona, Spain
T2 - International Beam Instrumentation Conference
T3 - 5
LA - english
AB - The new orbit feedback system required for the APS multi-bend acromat (MBA) ring must meet challenging beam stability requirements. The AC stability requirement is to correct rms beam motion to 10 \% the rms beam size at the insertion device source points from 0.01 to 1000 Hz. The vertical plane represents the biggest challenge for AC stability which is required to be 400 nm rms for a 4 micron vertical beam size. In addition long term drift over a period of 7 days is required to be 1 micron or less at insertion device BPMs and 2 microns for arc bpms. We present test results of the MBA prototype orbit feedback controller (FBC) in the APS storage ring. In this test, four insertion device BPMs were configured to send data to the FBC for processing into four fast corrector setpoints. The configuration of four bpms and four fast correctors creates a 4-bump and the configuration of fast correctors is similar to what will be implemented in the MBA ring. We report on performance benefits of increasing the sampling rate by a factor of 15 to 22.6 kHz over the existing APS orbit feedback system, limitations due to existing storage ring hardware and MBA orbit feedback design.
PB - JACoW
CP - Geneva, Switzerland
SP - 39
EP - 42
KW - feedback
KW - hardware
KW - controls
KW - power-supply
KW - storage-ring
DA - 2017/02
PY - 2017
SN - 978-3-95450-177-9
DO - 10.18429/JACoW-IBIC2016-MOPG06
UR - http://jacow.org/ibic2016/papers/mopg06.pdf
ER -