VAX/LSI-11/CAMAC Nuclear Data Acquisition System under Development at the W.K. Kellogg Radiation Laboratory, Caltech

Creators: Melvin, J. D.; Mendenhall, M. H.; McKeown, R.; Tombrello, T. A.

Abstract

A CAMAC data acquisition system is currently under development at the W.K. Kellogg Radiation Laboratory which utilizes LSI-11 crate controllers and a 250 Kbyte/sec 7-computer Q-bus DMA network. The central network computer is a VAX 11/750 with Unibus and Q-bus adaptors. Processing is distributed between the LSI-11s and the VAX as required to meet input-output and event processing speeds needed by the experiment. Use of the Q-bus on all machines allows CAMAC controllers and tape drives to be moved as needed between the LSI-11s and the VAX.

Additional Information

© 1981 IEEE. The efforts of the Kellogg staff which have made possible rapid initial development of this data acquisition system are gratefully acknowledged. In particular, we wish to thank Alan Rice, Fernand Meulemans, and Al Massey. Design of the described system at the Kellogg Laboratory would not have been possible without fruitful contacts over the past three years with Peter Parker at Yale University, Richard Kouzes at Princeton University, and David Balamuth at the University of Pennsylvania. In addition to visits to these institutions, one of us (J. Melvin) enjoyed productive visits to the University of Washington, Bell Laboratories in Murray Hill, Lawrence Livermore Laboratory, Stanford Linear Accelerator Center, Los Alamos Scientific Laboratory Van de Graaff, University of Indiana Cyclotron Facility, and Nuclear Data Corporation in Chicago. Hardware and software ideas were exchanged, and in several cases we were provided with tapes of useful software systems. This project has been primarily supported by National Science Foundation Grant PHY79-23638.

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