A feedback microprocessor for hadron colliders [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 19 pages : digital, PDF file
Additional Creators:: Fermi National Accelerator Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

A feedback microprocessor has been built for the TEVATRON. It has been constructed to be applicable to hadron colliders in general. Its inputs are realtime accelerator measurements, data describing the state of the TEVATRON, and ramp tables. The microprocessor software includes a finite state machine. Each state corresponds to a specific TEVATRON operation and has a state-specific TEVATRON model. Transitions between states are initiated by the global TEVATRON clock. Each state includes a cyclic routine which is called periodically and where all calculations are performed. The output corrections are inserted onto a fast TEVATRON-wide link from which the power supplies will read the realtime corrections. We also store all of the input data and output corrections in a set of buffers which can easily be retrieved for diagnostic analysis. In this paper we will describe this device and its use to control the TEVATRON tunes as well as other possible applications.

Report Numbers:

E 1.99:fnal-tm--1821
fnal-tm--1821

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Note:

Published through SciTech Connect.
12/01/1992.
"fnal-tm--1821"
"DE93008364"
Chapman, L.; Herrup, D.A.; Franck, A.; Lublinsky, B.; Groves, T.

Type of Report and Period Covered Note:

Topical; 12/01/1992 - 12/01/1992

Funding Information:

AC02-76CH03000

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