Author: Sharma, S.K.
Paper Title Page
MOPB15 A Comparison of Front-End Design Requirements 53
 
  • S.K. Sharma
    BNL, Upton, New York, USA
  
  Front ends of the NSLS-II storage ring have numerous design requirements to ensure equipment and personal safety aspects of their designs. These design requirements, especially many pertaining to ray tracings, have gradually become overly stringent and a review is underway to simplify them for building future front ends. As a part of this effort we have assembled the front-end design requirements used in several other light sources. In this paper the assembled design requirements are discussed in comparison with those currently in use at NSLS-II.  
poster icon Poster MOPB15 [0.433 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-MOPB15  
About • paper received ※ 20 July 2021       paper accepted ※ 01 October 2021       issue date ※ 10 November 2021  
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MOPC12 A New Magnetic Measurement System for the Future Low Emittance NSLS-II Storage Ring 78
 
  • M. Musardo, T.M. Corwin, F.A. DePaola, L. Doom, R. Faussete, D.A. Harder, S.K. Sharma, T. Tanabe
    BNL, Upton, New York, USA
  • D. Assell, J. DiMarco
    Fermilab, Batavia, Illinois, USA
  • C.L. Doose, A.K. Jain
    ANL, Lemont, Illinois, USA
  
  Funding: This work was supported by DOE under contract DE-SC0012704
A new magnetic measurement system is under construc-tion at BNL for accurate field harmonic measurements and fiducialization of magnets for a future upgrade of the NSLS- II storage ring. The entire storage ring is envi-sioned to be replaced with a new lattice concept, known as Complex Bend, which superimposes dipole and high-gradient quadrupole fields. The magnetic measurement system will use rotating wire and a PCB rotating coil specifically designed for small-aperture (< 15 mm) high gradient magnets. In this paper we describe in detail the mechanical design and the data acquisition hardware and software. 		 
poster icon Poster MOPC12 [3.102 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-MOPC12  
About • paper received ※ 15 July 2021       paper accepted ※ 13 October 2021       issue date ※ 03 November 2021  
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MOPC13 Recent Studies on the Vibration Response of NSLS-II Girder Support System 81
 
  • S.K. Sharma, C.J. Spataro
    BNL, Upton, New York, USA
  
  The designs of various girder support systems were reviewed recently in a MEDSI School tutorial*. A comparison of their horizontal transmissibility values in (2-100) Hz band showed that the NSLS-II girder support system had a lower horizontal transmissibility despite its first natural frequency being the lowest (~30 Hz). Detailed vibration tests and FE analyses have been performed to understand this anomaly and to assess the role of viscoelastic damping pads underneath the NSLS-II girders. The analyses were extended to include harmonic response to model viscoelastic properties and random vibrations to obtain relative motions between the magnets. The results of these new tests and FE analyses are discussed in this paper.
*S. Sharma, "Storage Ring Girder Issues for Low Emittance Storage Rings", Tutorial, Medsi School 2, Grenoble, France, October 2-25, 2019. 		 
poster icon Poster MOPC13 [0.493 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-MOPC13  
About • paper received ※ 20 July 2021       paper accepted ※ 17 September 2021       issue date ※ 01 November 2021  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)