학술논문

The second level trigger of the ATLAS experiment at CERN's LHC
Document Type
Periodical
Author
dos Anjos, A.Abolins, M.Armstrong, S.Baines, J.T.Barisonzi, M.Beck, H.P.Bee, C.P.Beretta, M.Biglietti, M.Blair, R.Bogaerts, A.Boisvert, V.Bosman, M.Boterenbrood, H.Botterill, D.Brandt, S.Caron, B.Casado, P.Cataldi, G.Cavalli, D.Cervetto, M.Ciobotaru, M.Comune, G.Corso-Radu, A.Cortezon, E.P.Cranfield, R.Crone, G.Dawson, J.Di Girolamo, B.Di Mattia, A.Gomez, M.D.Dobinson, R.Drohan, J.Ellis, N.Elsing, M.Epp, B.Ermoline, Y.Etienne, F.Falciano, S.Farilla, A.Ferrer, M.L.Francis, D.Gadomski, S.Gameiro, S.George, S.Ghete, V.Golonka, P.Gonzalez, S.Gorini, B.Green, B.Grothe, M.Gruwe, M.Haas, S.Haeberli, C.Hasegawa, Y.Hauser, R.Hinkelbein, C.Hughes-Jones, R.Jansweijer, P.Joos, M.Kaczmarska, A.Karr, K.Khomich, A.Kieft, G.Knezo, E.Konstantinidis, N.Korcyl, K.Krasny, W.Kugel, A.Lankford, A.Lehmann, G.LeVine, M.Li, W.Liu, W.Lowe, A.Luminari, L.Maeno, T.Maia, M.L.Mapelli, L.Martin, B.McLaren, R.Meessen, C.Meirosu, C.Mello, A.G.Merino, G.Misiejuk, A.Mommsen, R.Morettini, P.Mornacchi, G.Moyse, E.Muller, M.Nagasaka, Y.Nairz, A.Nakayoshi, K.Negri, A.Nikitin, N.Nisati, A.Padilla, C.Papadopoulos, I.Parodi, F.Perez-Reale, V.Petersen, J.Pinfold, J.L.Pinto, P.Polesello, G.Pope, B.Prigent, D.Qian, Z.Resconi, S.Rosati, S.Scannicchio, D.A.Schiavi, C.Schlereth, J.Schoerner-Sadenius, T.Segura, E.Seixas, J.M.Shears, T.Shimojima, M.Sivoklokov, S.Smizanska, M.Soluk, R.Spiwoks, R.Stancu, S.Stanescu, C.Strong, J.Tapprogge, S.Tremblet, L.Touchard, F.Vercesi, V.Vermeulen, V.Watson, A.Wengler, T.Werner, P.Wheeler, S.Wickens, F.J.Wiedenmann, W.Wielers, M.Yasu, Y.Yu, M.Zobernig, H.Zurek, M.
Source
IEEE Transactions on Nuclear Science IEEE Trans. Nucl. Sci. Nuclear Science, IEEE Transactions on. 51(3):909-914 Jun, 2004
Subject
Nuclear Engineering
Bioengineering
Large Hadron Collider
Detectors
Magnetic field measurement
Data acquisition
Energy measurement
Particle measurements
Mesons
Computer networks
High performance computing
Physics
Language
ISSN
0018-9499
1558-1578
Abstract
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high level triggers and data acquisition system are designed to profit from commodity computing and networking components to achieve the required performance. In this paper, we discuss data flow aspects of the design of the second level trigger (LVL2) and present results of performance measurements.