The AMSRW Board for the Silicon Vertex Tracker Upgrade at CDF

Adelman,; Annovi,; Bardi, A.; Bitossi,; Carosi,; Dell'Orso,; Giannetti,; Giovacchini,; Lewis, Elfed; Liu, Ming; Piendibene,; Pitkanen,; Reisert,; Shochet,; Simoni, Anna; Spinella,; Tang,; Torre,

doi:10.1109/nssmic.2005.1596321

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…To do that we need to develop a new hardware path connecting the L1 CAL directly to the L2 decision CPU (See Figure 3). This new hardware path is based on the Pulsar boards [2], a general purpose VME board developed at CDF and used for upgrading both the Level-2 global decision crate [3] and the Level-2 silicon vertex tracking (SVT) subsystem [4]. With a such new system the full resolution calorimeter trigger tower data are received, preprocessed and merged by a set of Pulsar boards before being sent to the Level-2 decision CPU running a new fixed-cone cluster finding.…”

Section: L2 Calorimeter Trigger Upgradementioning

confidence: 99%

Level-2 Calorimeter Trigger Upgrade at CDF

Bhatti

Canepa²,

Casarsa

et al. 2009

IEEE Trans. Nucl. Sci.

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The CDF Run 11 [1] Level 2 calorimeter trigger is implemented in hardware and is based on a simple algorithm that was used in Run I. This system has worked well for Run II at low luminosity. As the Tevatron instantaneous luminosity increases, the limitation due to this simple algorithm starts to become clear. As a result, some of the most important jet and MET (Missing ET) related triggers have large growth terms in cross section at higher luminosity. In this paper, we present an upgrade of the L2CAL system which makes the full calorimeter trigger tower information directly available to the Level 2 decision CPU. This upgrade is based on the Pulsar [2], a general purpose VME board developed at CDF and already used for upgrading both the Level 2 global decision crate [3] and the Level 2 Silicon Vertex Tracking [4]. The upgrade system allows more sophisticated algorithms to be implemented in software and both Level 2 jets and MET can be made nearly equivalent to offline quality, thus significantly improving the performance and flexibility of the jet and MET related triggers. This is a natural expansion of the already-upgraded Level 2 trigger system, and is a big step forward to improve the CDF triggering capability at Level 2. This paper describes the design, the hardware and software implementation and the performance of the upgrade system

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Section: L2 Calorimeter Trigger Upgradementioning

confidence: 99%

Level-2 Calorimeter Trigger Upgrade at CDF

Bhatti

Canepa²,

Casarsa

et al. 2009

IEEE Trans. Nucl. Sci.

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show abstract

Level-2 Calorimeter Trigger Upgrade at CDF

Bhatti

Canepa

Casarsa

et al. 2007

2007 15th IEEE-NPSS Real-Time Conference

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The CDF RunII Level-2 calorimeter trigger is implemented in hardware and is based on a simple algorithm used in Run I. This system has worked well for RunII at low luminosity. However, as the Tevatron instantaneous luminosity increases, the limitation due to the simple algorithm starts to become clear. In this paper, we will present an upgrade path to the Level-2 calorimeter trigger system at CDF. This upgrade approach is based on the Pulsar board, a general purpose VME board developed at CDF and used for upgrading both the Level-2 tracking and the Level-2 global decision crate. This paper will describe the design, hardware and software implementation, as well as the advantages of this approach over the existing system.

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The AMSRW Board for the Silicon Vertex Tracker Upgrade at CDF

Cited by 2 publications

References 2 publications

Level-2 Calorimeter Trigger Upgrade at CDF

Level-2 Calorimeter Trigger Upgrade at CDF

Level-2 Calorimeter Trigger Upgrade at CDF

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