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@InProceedings{sinsheimer:icalepcs2019-wepha063,
author = {J. Sinsheimer and P.L. Cappadoro and T.M. Corwin and J. Escallier and D.A. Harder and D.A. Hidas and A. Hunt and M. Musardo and J. Rank and C. Rhein and T. Tanabe and I. Waluyo},
% author = {J. Sinsheimer and P.L. Cappadoro and T.M. Corwin and J. Escallier and D.A. Harder and D.A. Hidas and others},
% author = {J. Sinsheimer and others},
title = {{Precision Insertion Device Control and Simultaneous Monochromator Fly Scanning for NSLS-II}},
booktitle = {Proc. ICALEPCS'19},
pages = {1244--1247},
paper = {WEPHA063},
language = {english},
keywords = {controls, photon, insertion, insertion-device, EPICS},
venue = {New York, NY, USA},
series = {International Conference on Accelerator and Large Experimental Physics Control Systems},
number = {17},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2020},
issn = {2226-0358},
isbn = {978-3-95450-209-7},
doi = {10.18429/JACoW-ICALEPCS2019-WEPHA063},
url = {https://jacow.org/icalepcs2019/papers/wepha063.pdf},
note = {https://doi.org/10.18429/JACoW-ICALEPCS2019-WEPHA063},
abstract = {Beginning in January of 2019, 8 of the 10 In-Vacuum Undulators installed in the NSLS-II storage ring underwent in-house in-situ control system upgrades allowing for control of the magnetic gap during motion down to the 50 nm level with an in-position accuracy of nearly 5 nm. Direct linking of Insertion Devices and beamline monochromators is achieved via a fiber interface allowing precise, simultaneous, nonlinear motion of both devices and providing a fast hardware trigger for real-time accurate insertion device and monochromator fly scanning. This presentation will discuss use case scenarios at light source facilities and detail the precision achieved for simultaneous motion. Particular attention is given to the precision at which undulator energy harmonic peaks can be tracked and the variation of the peak flux in motion.},
}