학술논문

The read-out processors of the Aleph time projection chamber and their performance
Document Type
Periodical
Source
IEEE Transactions on Nuclear Science IEEE Trans. Nucl. Sci. Nuclear Science, IEEE Transactions on. 37(3):1210-1215 Jun, 1990
Subject
Nuclear Engineering
Bioengineering
Detectors
Time measurement
Extraterrestrial measurements
Pulse measurements
Positrons
Storage rings
Signal sampling
Signal processing
Fastbus
Hardware
Language
ISSN
0018-9499
1558-1578
Abstract
The Aleph detector is installed on the LEP electron-positron storage ring. Its central tracking detector, a time projection chamber (TPC), has about 50000 channels of sampling electronics. The digitized signals are processed by 72 double-width Fastbus modules built around an MC 68020 processor. The time projection processor is described, and the solutions, both hardware and software, adopted to run and manage such a complex system in a Fastbus-VAX environment are discussed. Practical experience with the system is reported.ETX