Advances in the operation of the DIII-D neutral beam computer systems [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 1998.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: 8 pages : digital, PDF file
Additional Creators: General Atomic Company, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information

Access Online

www.osti.gov

Availability

Finding items...

Restrictions on Access

Free-to-read Unrestricted online access

Summary

The DIII-D neutral beam system routinely provides up to 20 MW of deuterium neutral beam heating in support of experiments on the DIII-D tokamak, and is a critical part of the DIII-D physics experimental program. The four computer systems previously used to control neutral beam operation and data acquisition were designed and implemented in the late 1970`s and used on DIII and DIII-D from 1981--1996. By comparison to modern standards, they had become expensive to maintain, slow and cumbersome, making it difficult to implement improvements. Most critical of all, they were not networked computers. During the 1997 experimental campaign, these systems were replaced with new Unix compliant hardware and, for the most part, commercially available software. This paper describes operational experience with the new neutral beam computer systems, and new advances made possible by using features not previously available. These include retention and access to historical data, an asynchronously fired ``rules`` base, and a relatively straightforward programming interface. Methods and principles for extending the availability of data beyond the scope of the operator consoles will be discussed.

Report Numbers

E 1.99:ga--a22760
E 1.99: conf-971065--
conf-971065--
ga--a22760

Subject(s)

Plasma Physics And Fusion

Other Subject(s)

Note

Published through SciTech Connect.
02/01/1998.
"ga--a22760"
" conf-971065--"
"DE98003427"
17. IEEE/NPSS symposium on fusion engineering, San Diego, CA (United States), 6-10 Oct 1997.
Phillips, J.C.; Hong, R.M.; Kellman, D.H.; Chiu, H.K.; Busath, J.L.; Penaflor, B.G.; Piglowski, D.

Funding Information

AC03-89ER51114

View MARC record | catkey: 14741899