Keyword: data-acquisition
Paper Title Other Keywords Page
WEP011 A Preliminary Design of Bunch-by-bunch 3D Positions Measurement storage-ring, real-time, SRF, timing 347
 
  • R.Z. Wu, P. Lu, B.G. Sun, L.L. Tang, D.Y. Wang, Y.K. Zhao
    USTC/NSRL, Hefei, Anhui, People’s Republic of China
  
  The decrease of beam emittance in the 4th generation light source greatly increases the electron density, thus the wakefields and beam impedance in the storage ring are significantly enhanced, resulting in various beam instabilities. Therefore, it is necessary to observe the transient state of beams using the bunch-by-bunch technique, so as to dig into these instabilities. Here a three-dimensional (3D) positions measurement instrument is designed based on data synchronization module (DSM) to acquire the transverse positions and longitudinal phases of beams in real-time.  
poster icon Poster WEP011 [0.657 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP011  
About • Received ※ 12 July 2023 — Revised ※ 09 September 2023 — Accepted ※ 13 September 2023 — Issue date ※ 27 September 2023
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEP028 LANSCE High Density Emittance Instrumentation System emittance, instrumentation, controls, hardware 413
 
  • L.S. Montoya, S.A. Baily, S.M. Johnson, H.L. Leffler, H.A. Watkins, D.D. Zimmermann
    LANL, Los Alamos, New Mexico, USA
  
  Funding: Work supported by the U.S. Department of Energy, contract no. 89233218CNA000001. LA-UR-23-25123
The Los Alamos Neutron Science Center (LANSCE) is currently upgrading the existing emittance stations with a high-density instrumentation system for emittance measurements in the low energy beam transport region. Emittance measurements were obtained using obsolete legacy equipment. For motion control a switching station with a mechanical mux to switch actuators was used. This caused a single point of failure for all emittance stations and is becoming increasingly unreliable. For data acquisition, two sets of signal conditioning and digitizers were employed and had to be shared between 7 emittance stations. Physical cable swapping was necessary when taking measurements from station to station. A system was developed using dedicated Quad Actuator Controller (QAC) chassis, capable of driving four (4) actuators, and dedicated data acquisition (DAQ) chassis capable of signal conditioning and digitizing up to 80 channels simultaneously. Details of the system development are presented. 		 
poster icon Poster WEP028 [0.400 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP028  
About • Received ※ 07 September 2023 — Revised ※ 11 September 2023 — Accepted ※ 25 September 2023 — Issue date ※ 01 October 2023
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEP029 LANSCE QAC/DAQ Wire Scanner Instrumentation Upgrade controls, hardware, instrumentation, impedance 415
 
  • L.S. Montoya, S.M. Johnson, H.A. Watkins, D.D. Zimmermann
    LANL, Los Alamos, New Mexico, USA
  
  Funding: Work supported by the U.S. Department of Energy, contract no. 89233218CNA000001. LA-UR-23-25124
High density instrumentation has been developed to upgrade wire scanner beam diagnostic capability in all areas downstream of the Coupled Cavity LINAC (CCL). Transverse beam profile measurements were originally obtained using legacy electronics known as Computer Automated Measurement and Control (CAMAC) crates. CAMAC has become obsolete, and a new wire scanner diagnostic system was developed as a replacement. With high wire scanner device density located in each area, instrumentation was developed to meet that need along with the ability to interface with legacy open-loop controlled actuators and be forward compatible with upgraded closed-loop systems. A high-density system was developed using a Quad Actuator Controller (QAC) and Data Acquisition (DAQ) chassis that pair together using a sequencer when taking measurements. Software improvements were also made, allowing for full waveform functionality that was previously unavailable. Deployment of 52 wire scanner locations in 2022 increased device availability and functionality across the facility. Hardware and software design details along with results from accelerator beam measurements are presented. 		 
poster icon Poster WEP029 [2.359 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP029  
About • Received ※ 07 September 2023 — Revised ※ 11 September 2023 — Accepted ※ 14 September 2023 — Issue date ※ 20 September 2023
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)