DocumentCode :
905735
Title :
A Microprocessor Based CAMAC Data Acquisition System for Use in High Energy Physics
Author :
Rosenberg, E.I. ; Homer, J.F. ; Thomas, W.D.
Author_Institution :
Department of Physics and Ames Laboratory, USDOE Iowa State University, Ames, Iowa 50011
Volume :
32
Issue :
1
fYear :
1985
Firstpage :
217
Lastpage :
220
Abstract :
A high energy physics CAMAC data acquisition system is described which consists of a Motorola 68000 microprocessor monoboard system interfaced to two Digital Equipment Corporation (DEC) UNIBUSes. The system can be replicated any number of times (n) as a peripheral device on a host UNIBUS. This allows for n parallel channels of DMA data acquisition on n auxiliary UNIBUSes each with a CAMAC branch driver and 256 Kbytes of memory. Thus, the system reduces the time required to acquire data by a factor of ~n and simultaneously increases the total memory buffer available to the host UNIBUS by a factor of n. Such a technique is useful at fixed target particle accelerators where data is collected at a high instantaneous rates for a small fraction (10-25%) of the overall cycle time.
Keywords :
CAMAC; Computer interfaces; Control systems; Data acquisition; Laboratories; Linear particle accelerator; Microcomputers; Microprocessors; Physics; Registers;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.1985.4336823
Filename :
4336823
Link To Document :
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