DocumentCode :
785867
Title :
The SLAC Beam Switchyard Control Computer
Author :
Howry, S.K. ; Scholl, R. ; Seppi, E.J. ; Hu, M. ; Neet, D.
Author_Institution :
Stanford Linear Accelerator Center Stanford, California
Volume :
14
Issue :
3
fYear :
1967
fDate :
6/1/1967 12:00:00 AM
Firstpage :
1066
Lastpage :
1070
Abstract :
A computer system has been developed at SLAC in the beam switchyard for on-line beam transport control. The system consists of an SDS ´925´ computer and various specially designed interface devices. The system scans and records changes in interlocks and status signals; sets up, monitors, and maintains magnet currents and controls collimator and slit apertures. In addition to standard card and teletype input-output, the system has special panels for operator control of magnet currents and slit and collimator settings. A link to another computer provides for remote information access and control for experimenters. An important feature of the system is the operator oriented language which is provided for operator/computer interaction. The language is arranged so that an inadvertent action of the operator cannot adversely affect the computer program. A single computer instruction can vary a group of magnets simultaneously to change the beam energy while maintaining a given beam focussing condition. A fine-tune control has been provided so that the current in an arbitrary group can be controlled by a single switch. The operator can write instructions in the language which are synchronized in time to 1/360 of a second, and/or repeated at prescribed time intervals.
Keywords :
Collimators; Communication switching; Computer aided instruction; Computer displays; Control systems; Linear accelerators; Magnetic switching; Particle beams; Switches; Teleprinting;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.1967.4324707
Filename :
4324707
Link To Document :
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