학술논문
Management and control of the read out processors (TPPs) of the Aleph time projection chamber
Document Type
Periodical
Author
Amendolia, S.R.; Barczewski, T.; Bauerdick, L.A.T.; Blucher, E.; Blum, W.; Boudreau, J.; Cinabro, D.; Ciocci, M.A.; Conway, J.; Cowen, D.F.; Fidecaro, F.; Galeotti, S.; Gobbo, B.; Jahn, A.; Johnson, R.; Kasemann, M.; Halley, A.; Haywood, S.; Larsson, U.; LeClaire, B.; Lehraus, I.; Lofstedt, B.; Lohse, T.; Lusiani, A.; Marrochesi, P.S.; May, J.; Milotti, E.; Minten, A.; Morsani, F.; Passuello, D.; Richstein, J.; Richter, R.; Roehn, S.; Rolandi, L.; Schlatter, D.; Schmelling, M.; Settles, R.; Stefanini, G.; Steeg, F.; Takashima, M.; Tejessy, W.; Thomas, J.; Vayaki, A.; Wear, J.; Witzeling, W.; Wu, S.L.; Xue, S.
Source
IEEE Transactions on Nuclear Science IEEE Trans. Nucl. Sci. Nuclear Science, IEEE Transactions on. 36(5):1459-1463 Oct, 1989
Subject
Language
ISSN
0018-9499
1558-1578
1558-1578
Abstract
The readout of the Aleph time projection chamber (TPC) relies on a set of 72 time projection processors (TPPs), which are based on a Motorola 68020 microprocessor running a real-time operating system. The advanced processing capabilities of the TPPs allow them to perform in parallel a number of tasks, both during and outside of data acquisition, which are outlined. The management and control of such a large number of intelligent devices is presented. The discussion covers the hardware configuration of the TPPs; the software running the TPPs; their management, status, and control; exception handling and message logging; and the TPP monitoring tasks.ETX