skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Beam position monitor gate functionality implementation and applications

Journal Article · · MethodsX
 [1];  [1];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
+ Show Author Affiliations

We introduce a novel technique to implement gate functionality for the beam position monitors (BPM) at the National Synchrotron Light Source II (NSLS-II). The functionality, now implemented in FPGA, allows us to acquire two separated bunch-trains’ synchronized turn-by-turn (TBT) data simultaneously with the NSLS-II in-house developed BPM system. The gated position resolution is improved about 3 times by narrowing the sampling width. Experimentally we demonstrated that the machine lattice could be transparently characterized with the gated TBT data of a short diagnostic bunch-train Cheng et al., 2017; Li et al., 2017. Other applications, for example, precisely characterizing storage ring impedance/wake-field through recording the beam positions of two separated bunch trains has been experimentally demonstrated.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1456893
Report Number(s):
BNL-205777-2018-JAAM
Journal Information:
MethodsX, Vol. 5, Issue C; ISSN 2215-0161
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (6)

Fast beam-ion instability. II. Effect of ion decoherence journal November 1995
Fast beam-ion instability. I. Linear theory and simulations journal November 1995
Measurement of local impedance by an orbit bump method
  • Kiselev, V.; Smaluk, V.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 525, Issue 3 https://doi.org/10.1016/j.nima.2004.01.077
journal June 2004
Techniques for Transparent Lattice Measurement and Correction text January 2017
First Observations of a “Fast Beam-Ion Instability” journal July 1997
Experimental evidence of ion-induced instabilities in the NSLS-II storage ring
  • Cheng, Weixing; Li, Yongjun; Podobedov, Boris
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 861 https://doi.org/10.1016/j.nima.2017.03.020
journal July 2017

Similar Records

Measurement and analysis of fast transient instabilities
Journal Article · Wed Aug 14 00:00:00 EDT 2019 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment · OSTI ID:1456893
+2 more
Transparent lattice characterization with gated turn-by-turn data of diagnostic bunch train
Journal Article · Tue Nov 21 00:00:00 EST 2017 · Physical Review Accelerators and Beams · OSTI ID:1456893
+1 more
A method for simultaneous linear optics and coupling correction for storage rings with turn-by-turn beam position monitor data
Journal Article · Mon Aug 01 00:00:00 EDT 2016 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment · OSTI ID:1456893

Related Subjects

43 PARTICLE ACCELERATORS
BPM
Signal processing
Gate
Lattice
Impedance
Closed orbit