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Other Keywords |
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| MOAB1 |
High Beam Intensity Harp Studies and Developments at SNS |
electronics, proton, simulation, target |
17 |
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- W. Blokland
ORNL, Oak Ridge, Tennessee, USA
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Funding: ORNL/SNS is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725
The Spallation Neutron Source (SNS) Harp consists of 30 wires for each of the horizontal, vertical, and diagonal planes. The purpose of the harp is to measure the position, profile, and peak density of the high intensity beam coming out of the accumulator ring and going onto the spallation target. The data-acquisition hardware is now over ten years old and many of the electronics parts are obsolete. Occasionally, the electronics must be rebooted to reset the sample-and-hold circuitry. To evaluate options for a new system, the signals from the harp were studied. This paper will describe these studies’ results, the design, and initial results of the new and simpler data-acquisition system..
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Slides MOAB1 [4.335 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2015-MOAB1
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| MOPTY075 |
Vibration Measurement of the Magnets in the Storage Ring of TPS |
quadrupole, storage-ring, ground-motion, dipole |
1112 |
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- C.H. Huang, Y.-S. Cheng, P.C. Chiu, K.T. Hsu, D. Lee, C.Y. Liao
NSRRC, Hsinchu, Taiwan
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Taiwan photon source is a 3rd generation synchrotron light source which is in beam commissioning at NSRRC. Orbit stability within 100 nm range is essential for such a small emittance light source. Technical noise from the vacuum pumps, water flow, etc. will cause the vibration of quadrupoles and deleterious orbit stability. In order to investigate the magnitude of vibration in the magnets of the storage ring, the vibration spectra of the lattice quadruples; the coherence between the magnets, girders and ground will be systematic investigated in this report.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2015-MOPTY075
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| MOPWI036 |
Investigation of Continuous Scan Methods for Rapid Data Acquisition |
detector, software, experiment, hardware |
1243 |
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- C.L. Li
East China University of Science and Technology, Shanghai, People's Republic of China
- A.M. Kiss
SLAC, Menlo Park, California, USA
- W.J. Zhang
University of Saskatchewan, Saskatoon, Canada
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It is common practice to perform spatially resolved X ray data acquisition by automatically moving components to discrete locations and then measuring beam intensity with the system at rest. While effective, scanning in this manner can be time consuming, with motors needing to accelerate, move and decelerate at each location before recording data. Information between data points may be missed unless fine grid scans are performed, which accounts for a further increase of scan time. Recent advances in commercial hardware and software enables a continuous scan capability for a wide range of applications, which saves the start and end of step motors. To compare scanning performance, both step and continuous scan modes were examined using the SPEC command language with both commercial and in-house hardware. The advantages and limitations of each are discussed.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2015-MOPWI036
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| Export • |
reference for this paper using
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