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Content Provider | IEEE Xplore Digital Library |
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Author | Power, J. O'Hara, J. Kurennoy, S. Plum, M. Stettler, M. |
Copyright Year | 2001 |
Description | Author affiliation: Los Alamos Nat. Lab., NM, USA (Power, J.) |
Abstract | The Spallation Neutron Source (SNS) linac accelerates 52-mA peak of pulsed H- particles to over 800 MeV. There are three types of accelerating structure in which the beam position must be measured: the drift-tube-linac (DTL); cavity-coupled-linac (CCL); and superconducting-linac (SCL)[1, 2]. Beam with a 402.5-MHz structure is injected into a 402.5 MHz DTL, followed by 805-MHz CCL and SCL structures. The position monitor pickups are all of the shorted-microstrip type with apertures of 2.5-cm, 3-cm and 7.3-cm-dia. In all cases, we down convert signals from the beam position pickups to a 50-MHz intermediate frequency (IF) for processing. We use the sampled in-phase and quadrature-phase (I&Q) processing technique to obtain the amplitude and phase information of the IF signals. All of the electronics are PCI-based hardware installed in PC computers employing standard technologies. LabVIEW/sup TM/ is used for all of the acquisition, processing, and serving of the data to ethernet, and hence, the control system. The design of this beam position system hardware is described herein. |
Sponsorship | U.S. Dept. Energy |
Starting Page | 1375 |
Ending Page | 1377 |
File Size | 624487 |
Page Count | 3 |
File Format | |
ISBN | 0780371917 |
DOI | 10.1109/PAC.2001.986685 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2001-06-18 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Linear particle accelerator Acceleration Signal processing Hardware Neutrons Particle beams Particle beam measurements Position measurement Superconducting devices Particle beam injection |
Content Type | Text |
Resource Type | Article |
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