NDLI: Automated startup of the CEBAF 45 MeV injector

Content Provider	IEEE Xplore Digital Library
Author	Kehne, D. Letta, P. Dunham, B. Kazimi, R.
Copyright Year	1997
Description	Author affiliation: Thomas Jefferson Nat. Accel. Facility, Newport News, VA, USA (Kehne, D.)
Abstract	In order to improve the speed and reproducibility of restoring the beam in the Continuous Electron Beam Accelerator Facility (CEBAF) 45 MeV injector after a full or partial shutdown of the accelerator, a program has been written using the Tcl/Tk scripting language to automate most of the required steps. The procedure is separated into four main parts. The first part performs preliminary checks that verify that the hardware is set correctly and then turns on the main interlocked systems including high power magnets and RF. The second step turns on the gun high voltage. The final steps turn on the beam and verify that the beam quality is satisfactory by measuring the transmission, orbit, transverse beam size, and bunch length. Minor corrections for phasing are also performed in the program. In order to identify inefficiencies in the startup, each is timed and parameter changes are logged so that system drifts can be tracked. This paper describes the software implementation, the logic to achieve a successful startup, and efficiency results.
Starting Page	2484
Ending Page	2486
File Size	354016
Page Count	3
File Format	PDF
ISBN	078034376X
DOI	10.1109/PAC.1997.751248
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-05-16
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electron accelerators Reproducibility of results Particle beams Electron beams Hardware Magnets Radio frequency Voltage Extraterrestrial measurements Length measurement
Content Type	Text
Resource Type	Article

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