Level-2 Calorimeter Trigger Upgrade at CDF

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The CDF Run II Level-2 calorimeter trigger is implemented in hardware and is based on an algorithm used in Run I. This system insured good performance at low luminosity obtained during the Tevatron Run II. However, as the Tevatron instantaneous luminosity increases, the limitations of the current system due to the algorithm start to become clear. In this paper, we will present an upgrade of the Level-2 calorimeter trigger system at CDF. The upgrade 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 ... continued below

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Flanagan, G. U. April 1, 2007.

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The CDF Run II Level-2 calorimeter trigger is implemented in hardware and is based on an algorithm used in Run I. This system insured good performance at low luminosity obtained during the Tevatron Run II. However, as the Tevatron instantaneous luminosity increases, the limitations of the current system due to the algorithm start to become clear. In this paper, we will present an upgrade of the Level-2 calorimeter trigger system at CDF. The upgrade 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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  • Presented at 15th IEEE Real Time Conference 2007 (RT 07), Batavia, Illinois, 29 Apr - 4 May 2007.

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  • Report No.: FERMILAB-CONF-07-165-E
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 909889
  • Archival Resource Key: ark:/67531/metadc889717

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  • April 1, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Sept. 26, 2017, 7:20 p.m.

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Flanagan, G. U. Level-2 Calorimeter Trigger Upgrade at CDF, article, April 1, 2007; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc889717/: accessed July 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.